diff options
118 files changed, 1890 insertions, 484 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-bdi b/Documentation/ABI/testing/sysfs-class-bdi index 5ac1e01bbd48..5f500977b42f 100644 --- a/Documentation/ABI/testing/sysfs-class-bdi +++ b/Documentation/ABI/testing/sysfs-class-bdi @@ -14,6 +14,10 @@ MAJOR:MINOR non-block filesystems which provide their own BDI, such as NFS and FUSE. +MAJOR:MINOR-fuseblk + + Value of st_dev on fuseblk filesystems. + default The default backing dev, used for non-block device backed diff --git a/Documentation/DocBook/kernel-locking.tmpl b/Documentation/DocBook/kernel-locking.tmpl index 77c42f40be5d..2510763295d0 100644 --- a/Documentation/DocBook/kernel-locking.tmpl +++ b/Documentation/DocBook/kernel-locking.tmpl @@ -703,6 +703,31 @@ </sect1> </chapter> +<chapter id="trylock-functions"> + <title>The trylock Functions</title> + <para> + There are functions that try to acquire a lock only once and immediately + return a value telling about success or failure to acquire the lock. + They can be used if you need no access to the data protected with the lock + when some other thread is holding the lock. You should acquire the lock + later if you then need access to the data protected with the lock. + </para> + + <para> + <function>spin_trylock()</function> does not spin but returns non-zero if + it acquires the spinlock on the first try or 0 if not. This function can + be used in all contexts like <function>spin_lock</function>: you must have + disabled the contexts that might interrupt you and acquire the spin lock. + </para> + + <para> + <function>mutex_trylock()</function> does not suspend your task + but returns non-zero if it could lock the mutex on the first try + or 0 if not. This function cannot be safely used in hardware or software + interrupt contexts despite not sleeping. + </para> +</chapter> + <chapter id="Examples"> <title>Common Examples</title> <para> diff --git a/Documentation/cpu-freq/governors.txt b/Documentation/cpu-freq/governors.txt index 6a9c55bd556b..dcec0564d040 100644 --- a/Documentation/cpu-freq/governors.txt +++ b/Documentation/cpu-freq/governors.txt @@ -129,14 +129,6 @@ to its default value of '80' it means that between the checking intervals the CPU needs to be on average more than 80% in use to then decide that the CPU frequency needs to be increased. -sampling_down_factor: this parameter controls the rate that the CPU -makes a decision on when to decrease the frequency. When set to its -default value of '5' it means that at 1/5 the sampling_rate the kernel -makes a decision to lower the frequency. Five "lower rate" decisions -have to be made in a row before the CPU frequency is actually lower. -If set to '1' then the frequency decreases as quickly as it increases, -if set to '2' it decreases at half the rate of the increase. - ignore_nice_load: this parameter takes a value of '0' or '1'. When set to '0' (its default), all processes are counted towards the 'cpu utilisation' value. When set to '1', the processes that are diff --git a/Documentation/hwmon/ibmaem b/Documentation/hwmon/ibmaem new file mode 100644 index 000000000000..2fefaf582a43 --- /dev/null +++ b/Documentation/hwmon/ibmaem @@ -0,0 +1,37 @@ +Kernel driver ibmaem +====================== + +Supported systems: + * Any recent IBM System X server with Active Energy Manager support. + This includes the x3350, x3550, x3650, x3655, x3755, x3850 M2, + x3950 M2, and certain HS2x/LS2x/QS2x blades. The IPMI host interface + driver ("ipmi-si") needs to be loaded for this driver to do anything. + Prefix: 'ibmaem' + Datasheet: Not available + +Author: Darrick J. Wong + +Description +----------- + +This driver implements sensor reading support for the energy and power +meters available on various IBM System X hardware through the BMC. All +sensor banks will be exported as platform devices; this driver can talk +to both v1 and v2 interfaces. This driver is completely separate from the +older ibmpex driver. + +The v1 AEM interface has a simple set of features to monitor energy use. +There is a register that displays an estimate of raw energy consumption +since the last BMC reset, and a power sensor that returns average power +use over a configurable interval. + +The v2 AEM interface is a bit more sophisticated, being able to present +a wider range of energy and power use registers, the power cap as +set by the AEM software, and temperature sensors. + +Special Features +---------------- + +The "power_cap" value displays the current system power cap, as set by +the Active Energy Manager software. Setting the power cap from the host +is not currently supported. diff --git a/MAINTAINERS b/MAINTAINERS index b42dcfcbee44..0a6d2ca03cea 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1240,6 +1240,20 @@ L: video4linux-list@redhat.com W: http://linuxtv.org S: Maintained +CXGB3 ETHERNET DRIVER (CXGB3) +P: Divy Le Ray +M: divy@chelsio.com +L: netdev@vger.kernel.org +W: http://www.chelsio.com +S: Supported + +CXGB3 IWARP RNIC DRIVER (IW_CXGB3) +P: Steve Wise +M: swise@chelsio.com +L: general@lists.openfabrics.org +W: http://www.openfabrics.org +S: Supported + CYBERPRO FB DRIVER P: Russell King M: rmk@arm.linux.org.uk @@ -4361,6 +4375,14 @@ M: gregkh@suse.de L: linux-kernel@vger.kernel.org S: Maintained +UTIL-LINUX-NG PACKAGE +P: Karel Zak +M: kzak@redhat.com +L: util-linux-ng@vger.kernel.org +W: http://kernel.org/~kzak/util-linux-ng/ +T: git://git.kernel.org/pub/scm/utils/util-linux-ng/util-linux-ng.git +S: Maintained + VFAT/FAT/MSDOS FILESYSTEM: P: OGAWA Hirofumi M: hirofumi@mail.parknet.co.jp diff --git a/arch/arm/mach-at91/at91x40.c b/arch/arm/mach-at91/at91x40.c index 1de121fc55f4..f44647738ee4 100644 --- a/arch/arm/mach-at91/at91x40.c +++ b/arch/arm/mach-at91/at91x40.c @@ -16,16 +16,32 @@ #include <asm/mach/arch.h> #include <asm/arch/at91x40.h> #include <asm/arch/at91_st.h> +#include <asm/arch/timex.h> #include "generic.h" /* - * This is used in the gpio code, stub locally. + * Export the clock functions for the AT91X40. Some external code common + * to all AT91 family parts relys on this, like the gpio and serial support. */ int clk_enable(struct clk *clk) { return 0; } +void clk_disable(struct clk *clk) +{ +} + +unsigned long clk_get_rate(struct clk *clk) +{ + return AT91X40_MASTER_CLOCK; +} + +struct clk *clk_get(struct device *dev, const char *id) +{ + return NULL; +} + void __init at91x40_initialize(unsigned long main_clock) { at91_extern_irq = (1 << AT91X40_ID_IRQ0) | (1 << AT91X40_ID_IRQ1) diff --git a/arch/arm/mach-integrator/impd1.c b/arch/arm/mach-integrator/impd1.c index 92d79fb39311..62e653a3ea1a 100644 --- a/arch/arm/mach-integrator/impd1.c +++ b/arch/arm/mach-integrator/impd1.c @@ -369,7 +369,8 @@ static int impd1_probe(struct lm_device *dev) lm_set_drvdata(dev, impd1); - printk("IM-PD1 found at 0x%08lx\n", dev->resource.start); + printk("IM-PD1 found at 0x%08lx\n", + (unsigned long)dev->resource.start); for (i = 0; i < ARRAY_SIZE(impd1->vcos); i++) { impd1->vcos[i].owner = THIS_MODULE, diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c index d55fa4e9bb43..c07f497000ca 100644 --- a/arch/arm/mach-integrator/pci_v3.c +++ b/arch/arm/mach-integrator/pci_v3.c @@ -405,7 +405,6 @@ v3_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) addr, fsr, pc, instr, __raw_readl(SC_LBFADDR), __raw_readl(SC_LBFCODE) & 255, v3_readb(V3_LB_ISTAT)); printk(KERN_DEBUG "%s", buf); - printascii(buf); #endif v3_writeb(V3_LB_ISTAT, 0); @@ -447,6 +446,7 @@ static irqreturn_t v3_irq(int dummy, void *devid) unsigned long pc = instruction_pointer(regs); unsigned long instr = *(unsigned long *)pc; char buf[128]; + extern void printascii(const char *); sprintf(buf, "V3 int %d: pc=0x%08lx [%08lx] LBFADDR=%08x LBFCODE=%02x " "ISTAT=%02x\n", IRQ_AP_V3INT, pc, instr, diff --git a/arch/arm/mach-omap1/board-palmte.c b/arch/arm/mach-omap1/board-palmte.c index a0b16a7e8a04..a4d20127a60e 100644 --- a/arch/arm/mach-omap1/board-palmte.c +++ b/arch/arm/mach-omap1/board-palmte.c @@ -24,7 +24,6 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/spi/spi.h> -#include <linux/spi/tsc2102.h> #include <linux/interrupt.h> #include <linux/apm-emulation.h> @@ -315,14 +314,6 @@ static void palmte_get_power_status(struct apm_power_info *info, int *battery) #define palmte_get_power_status NULL #endif -static struct tsc2102_config palmte_tsc2102_config = { - .use_internal = 0, - .monitor = TSC_BAT1 | TSC_AUX | TSC_TEMP, - .temp_at25c = { 2200, 2615 }, - .apm_report = palmte_get_power_status, - .alsa_config = &palmte_alsa_config, -}; - static struct omap_board_config_kernel palmte_config[] __initdata = { { OMAP_TAG_USB, &palmte_usb_config }, { OMAP_TAG_MMC, &palmte_mmc_config }, @@ -336,7 +327,6 @@ static struct spi_board_info palmte_spi_info[] __initdata = { .bus_num = 2, /* uWire (officially) */ .chip_select = 0, /* As opposed to 3 */ .irq = OMAP_GPIO_IRQ(PALMTE_PINTDAV_GPIO), - .platform_data = &palmte_tsc2102_config, .max_speed_hz = 8000000, }, }; diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index dace3820f1ee..e7d0fcd9b43f 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -38,7 +38,6 @@ #include <asm/arch/pxa-regs.h> #include <asm/arch/pxa2xx-regs.h> #include <asm/arch/pxa2xx-gpio.h> -#include <asm/arch/pxa27x-udc.h> #include <asm/arch/irda.h> #include <asm/arch/mmc.h> #include <asm/arch/ohci.h> diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c index 661a2358ac22..27f63d5d3a7b 100644 --- a/arch/arm/mach-s3c2410/mach-bast.c +++ b/arch/arm/mach-s3c2410/mach-bast.c @@ -374,7 +374,7 @@ static struct resource bast_dm9k_resource[] = { [2] = { .start = IRQ_DM9000, .end = IRQ_DM9000, - .flags = IORESOURCE_IRQ, + .flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH, } }; diff --git a/arch/arm/mach-s3c2410/mach-vr1000.c b/arch/arm/mach-s3c2410/mach-vr1000.c index c56423373ff3..4c4b5c4207c4 100644 --- a/arch/arm/mach-s3c2410/mach-vr1000.c +++ b/arch/arm/mach-s3c2410/mach-vr1000.c @@ -263,7 +263,7 @@ static struct resource vr1000_dm9k0_resource[] = { [2] = { .start = IRQ_VR1000_DM9000A, .end = IRQ_VR1000_DM9000A, - .flags = IORESOURCE_IRQ + .flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH, } }; @@ -282,7 +282,7 @@ static struct resource vr1000_dm9k1_resource[] = { [2] = { .start = IRQ_VR1000_DM9000N, .end = IRQ_VR1000_DM9000N, - .flags = IORESOURCE_IRQ + .flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH, } }; diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c index 6496eb645cee..2f772a3965c4 100644 --- a/arch/arm/mach-sa1100/collie.c +++ b/arch/arm/mach-sa1100/collie.c @@ -225,26 +225,28 @@ static void __init collie_init(void) int ret = 0; /* cpu initialize */ - GAFR = ( GPIO_SSP_TXD | \ - GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | GPIO_TIC_ACK | \ - GPIO_32_768kHz ); - - GPDR = ( GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | \ - GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | \ - GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | \ - GPIO_SDLC_AAF | GPIO_UART_SCLK1 | GPIO_32_768kHz ); - GPLR = GPIO_GPIO18; - - // PPC pin setting - PPDR = ( PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | \ - PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | \ - PPC_TXD1 | PPC_TXD2 | PPC_RXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM ); - - PSDR = ( PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4 ); - - GAFR |= GPIO_32_768kHz; - GPDR |= GPIO_32_768kHz; - TUCR = TUCR_32_768kHz; + GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | + GPIO_MCP_CLK | GPIO_32_768kHz; + + GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | + GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | + GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | + COLLIE_GPIO_UCB1x00_RESET | COLLIE_GPIO_nMIC_ON | + COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz; + + PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | + PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | + PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM; + + PWER = COLLIE_GPIO_AC_IN | COLLIE_GPIO_CO | COLLIE_GPIO_ON_KEY | + COLLIE_GPIO_WAKEUP | COLLIE_GPIO_nREMOCON_INT | PWER_RTC; + + PGSR = COLLIE_GPIO_nREMOCON_ON; + + PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4; + + PCFR = PCFR_OPDE; + platform_scoop_config = &collie_pcmcia_config; diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c index 2946c193a7d6..2db5580048d8 100644 --- a/arch/arm/plat-omap/clock.c +++ b/arch/arm/plat-omap/clock.c @@ -21,6 +21,7 @@ #include <linux/clk.h> #include <linux/mutex.h> #include <linux/platform_device.h> +#include <linux/cpufreq.h> #include <asm/io.h> diff --git a/arch/arm/plat-s3c24xx/s3c244x.c b/arch/arm/plat-s3c24xx/s3c244x.c index f197bb3a2366..2f01af5f64c4 100644 --- a/arch/arm/plat-s3c24xx/s3c244x.c +++ b/arch/arm/plat-s3c24xx/s3c244x.c @@ -65,6 +65,7 @@ void __init s3c244x_map_io(struct map_desc *mach_desc, int size) /* rename any peripherals used differing from the s3c2410 */ + s3c_device_sdi.name = "s3c2440-sdi"; s3c_device_i2c.name = "s3c2440-i2c"; s3c_device_nand.name = "s3c2440-nand"; s3c_device_usbgadget.name = "s3c2440-usbgadget"; diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c index b841ecfd5d5a..9af7740f32fb 100644 --- a/arch/frv/mm/init.c +++ b/arch/frv/mm/init.c @@ -26,6 +26,7 @@ #include <linux/types.h> #include <linux/bootmem.h> #include <linux/highmem.h> +#include <linux/module.h> #include <asm/setup.h> #include <asm/segment.h> @@ -56,7 +57,9 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); */ static unsigned long empty_bad_page_table; static unsigned long empty_bad_page; + unsigned long empty_zero_page; +EXPORT_SYMBOL(empty_zero_page); /*****************************************************************************/ /* diff --git a/arch/powerpc/kernel/prom_init_check.sh b/arch/powerpc/kernel/prom_init_check.sh index 8e24fc1821e8..31729a9387df 100644 --- a/arch/powerpc/kernel/prom_init_check.sh +++ b/arch/powerpc/kernel/prom_init_check.sh @@ -20,7 +20,7 @@ WHITELIST="add_reloc_offset __bss_start __bss_stop copy_and_flush _end enter_prom memcpy memset reloc_offset __secondary_hold __secondary_hold_acknowledge __secondary_hold_spinloop __start strcmp strcpy strlcpy strlen strncmp strstr logo_linux_clut224 -reloc_got2" +reloc_got2 kernstart_addr" NM="$1" OBJ="$2" diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c index 80d1babb230d..e0ff59f21135 100644 --- a/arch/powerpc/mm/pgtable_32.c +++ b/arch/powerpc/mm/pgtable_32.c @@ -402,7 +402,7 @@ void __set_fixmap (enum fixed_addresses idx, phys_addr_t phys, pgprot_t flags) return; } - map_page(address, phys, flags); + map_page(address, phys, pgprot_val(flags)); fixmaps++; } diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c index 5b3fb2b321ab..3a58ffabccd9 100644 --- a/arch/powerpc/platforms/ps3/mm.c +++ b/arch/powerpc/platforms/ps3/mm.c @@ -317,6 +317,9 @@ static int __init ps3_mm_add_memory(void) return result; } + lmb_add(start_addr, map.r1.size); + lmb_analyze(); + result = online_pages(start_pfn, nr_pages); if (result) diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 8619f2a3f1f6..7680001676a6 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -1331,6 +1331,9 @@ void mpic_irq_set_priority(unsigned int irq, unsigned int pri) unsigned long flags; u32 reg; + if (!mpic) + return; + spin_lock_irqsave(&mpic_lock, flags); if (is_ipi) { reg = mpic_ipi_read(src - mpic->ipi_vecs[0]) & @@ -1346,23 +1349,6 @@ void mpic_irq_set_priority(unsigned int irq, unsigned int pri) spin_unlock_irqrestore(&mpic_lock, flags); } -unsigned int mpic_irq_get_priority(unsigned int irq) -{ - unsigned int is_ipi; - struct mpic *mpic = mpic_find(irq, &is_ipi); - unsigned int src = mpic_irq_to_hw(irq); - unsigned long flags; - u32 reg; - - spin_lock_irqsave(&mpic_lock, flags); - if (is_ipi) - reg = mpic_ipi_read(src = mpic->ipi_vecs[0]); - else - reg = mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI)); - spin_unlock_irqrestore(&mpic_lock, flags); - return (reg & MPIC_VECPRI_PRIORITY_MASK) >> MPIC_VECPRI_PRIORITY_SHIFT; -} - void mpic_setup_this_cpu(void) { #ifdef CONFIG_SMP diff --git a/arch/x86/boot/printf.c b/arch/x86/boot/printf.c index c1d00c0274c4..50e47cdbdddd 100644 --- a/arch/x86/boot/printf.c +++ b/arch/x86/boot/printf.c @@ -56,7 +56,7 @@ static char *number(char *str, long num, int base, int size, int precision, if (type & LEFT) type &= ~ZEROPAD; if (base < 2 || base > 36) - return 0; + return NULL; c = (type & ZEROPAD) ? '0' : ' '; sign = 0; if (type & SIGN) { diff --git a/arch/x86/kernel/cpu/cpufreq/longrun.c b/arch/x86/kernel/cpu/cpufreq/longrun.c index af4a867a097c..777a7ff075de 100644 --- a/arch/x86/kernel/cpu/cpufreq/longrun.c +++ b/arch/x86/kernel/cpu/cpufreq/longrun.c @@ -245,7 +245,7 @@ static unsigned int __init longrun_determine_freqs(unsigned int *low_freq, if ((ecx > 95) || (ecx == 0) || (eax < ebx)) return -EIO; - edx = (eax - ebx) / (100 - ecx); + edx = ((eax - ebx) * 100) / (100 - ecx); *low_freq = edx * 1000; /* back to kHz */ dprintk("low frequency is %u kHz\n", *low_freq); diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c index 46d4034d9f37..206791eb46e3 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c @@ -1127,12 +1127,23 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) * an UP version, and is deprecated by AMD. */ if (num_online_cpus() != 1) { - printk(KERN_ERR PFX "MP systems not supported by PSB BIOS structure\n"); +#ifndef CONFIG_ACPI_PROCESSOR + printk(KERN_ERR PFX "ACPI Processor support is required " + "for SMP systems but is absent. Please load the " + "ACPI Processor module before starting this " + "driver.\n"); +#else + printk(KERN_ERR PFX "Your BIOS does not provide ACPI " + "_PSS objects in a way that Linux understands. " + "Please report this to the Linux ACPI maintainers" + " and complain to your BIOS vendor.\n"); +#endif kfree(data); return -ENODEV; } if (pol->cpu != 0) { - printk(KERN_ERR PFX "No _PSS objects for CPU other than CPU0\n"); + printk(KERN_ERR PFX "No ACPI _PSS objects for CPU other than " + "CPU0. Complain to your BIOS vendor.\n"); kfree(data); return -ENODEV; } diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c index e48a3ea03117..2509809a36cf 100644 --- a/drivers/acpi/dispatcher/dsmethod.c +++ b/drivers/acpi/dispatcher/dsmethod.c @@ -565,7 +565,7 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc, acpi_os_release_mutex(method_desc->method. mutex->mutex.os_mutex); - method_desc->method.mutex->mutex.thread_id = 0; + method_desc->method.mutex->mutex.thread_id = NULL; } } diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c index c873ab40cd0e..a8bf3d713e28 100644 --- a/drivers/acpi/executer/exmutex.c +++ b/drivers/acpi/executer/exmutex.c @@ -326,7 +326,7 @@ acpi_status acpi_ex_release_mutex_object(union acpi_operand_object *obj_desc) /* Clear mutex info */ - obj_desc->mutex.thread_id = 0; + obj_desc->mutex.thread_id = NULL; return_ACPI_STATUS(status); } @@ -463,7 +463,7 @@ void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread) /* Mark mutex unowned */ obj_desc->mutex.owner_thread = NULL; - obj_desc->mutex.thread_id = 0; + obj_desc->mutex.thread_id = NULL; /* Update Thread sync_level (Last mutex is the important one) */ diff --git a/drivers/block/brd.c b/drivers/block/brd.c index a196ef7f147f..680cdfc00b90 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -447,6 +447,7 @@ static struct brd_device *brd_alloc(int i) disk->fops = &brd_fops; disk->private_data = brd; disk->queue = brd->brd_queue; + disk->flags |= GENHD_FL_SUPPRESS_PARTITION_INFO; sprintf(disk->disk_name, "ram%d", i); set_capacity(disk, rd_size * 2); diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c index ebfe038d859e..f1c8feb5510b 100644 --- a/drivers/block/viodasd.c +++ b/drivers/block/viodasd.c @@ -3,7 +3,7 @@ * Authors: Dave Boutcher <boutcher@us.ibm.com> * Ryan Arnold <ryanarn@us.ibm.com> * Colin Devilbiss <devilbis@us.ibm.com> - * Stephen Rothwell <sfr@au1.ibm.com> + * Stephen Rothwell * * (C) Copyright 2000-2004 IBM Corporation * diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c index 5245a4a0ba74..9d0dfe6e0d63 100644 --- a/drivers/cdrom/viocd.c +++ b/drivers/cdrom/viocd.c @@ -6,7 +6,7 @@ * Authors: Dave Boutcher <boutcher@us.ibm.com> * Ryan Arnold <ryanarn@us.ibm.com> * Colin Devilbiss <devilbis@us.ibm.com> - * Stephen Rothwell <sfr@au1.ibm.com> + * Stephen Rothwell * * (C) Copyright 2000-2004 IBM Corporation * diff --git a/drivers/char/drm/drm_sysfs.c b/drivers/char/drm/drm_sysfs.c index 9a32169e88fb..af211a0ef179 100644 --- a/drivers/char/drm/drm_sysfs.c +++ b/drivers/char/drm/drm_sysfs.c @@ -34,8 +34,6 @@ static int drm_sysfs_suspend(struct device *dev, pm_message_t state) struct drm_minor *drm_minor = to_drm_minor(dev); struct drm_device *drm_dev = drm_minor->dev; - printk(KERN_ERR "%s\n", __func__); - if (drm_dev->driver->suspend) return drm_dev->driver->suspend(drm_dev, state); diff --git a/drivers/char/ip2/Makefile b/drivers/char/ip2/Makefile index 6bfe2543ddc2..939618f62fe1 100644 --- a/drivers/char/ip2/Makefile +++ b/drivers/char/ip2/Makefile @@ -2,7 +2,7 @@ # Makefile for the Computone IntelliPort Plus Driver # -obj-$(CONFIG_COMPUTONE) += ip2.o ip2main.o +obj-$(CONFIG_COMPUTONE) += ip2.o -ip2-objs := ip2base.o +ip2-objs := ip2base.o ip2main.o diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index 70957acaa960..c12cf8fc4be0 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -346,27 +346,6 @@ have_requested_irq( char irq ) } /******************************************************************************/ -/* Function: init_module() */ -/* Parameters: None */ -/* Returns: Success (0) */ -/* */ -/* Description: */ -/* This is a required entry point for an installable module. It simply calls */ -/* the driver initialisation function and returns what it returns. */ -/******************************************************************************/ -#ifdef MODULE -static int __init -ip2_init_module(void) -{ -#ifdef IP2DEBUG_INIT - printk (KERN_DEBUG "Loading module ...\n" ); -#endif - return 0; -} -module_init(ip2_init_module); -#endif /* MODULE */ - -/******************************************************************************/ /* Function: cleanup_module() */ /* Parameters: None */ /* Returns: Nothing */ @@ -779,8 +758,6 @@ out: return err; } -EXPORT_SYMBOL(ip2_loadmain); - /******************************************************************************/ /* Function: ip2_init_board() */ /* Parameters: Index of board in configuration structure */ diff --git a/drivers/char/viocons.c b/drivers/char/viocons.c index 3d3e1c2b310f..65fb848e1cce 100644 --- a/drivers/char/viocons.c +++ b/drivers/char/viocons.c @@ -7,7 +7,7 @@ * Authors: Dave Boutcher <boutcher@us.ibm.com> * Ryan Arnold <ryanarn@us.ibm.com> * Colin Devilbiss <devilbis@us.ibm.com> - * Stephen Rothwell <sfr@au1.ibm.com> + * Stephen Rothwell * * (C) Copyright 2000, 2001, 2002, 2003, 2004 IBM Corporation * diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c index 58aad63831f4..c39ddaff5e8f 100644 --- a/drivers/char/viotape.c +++ b/drivers/char/viotape.c @@ -6,7 +6,7 @@ * Authors: Dave Boutcher <boutcher@us.ibm.com> * Ryan Arnold <ryanarn@us.ibm.com> * Colin Devilbiss <devilbis@us.ibm.com> - * Stephen Rothwell <sfr@au1.ibm.com> + * Stephen Rothwell * * (C) Copyright 2000-2004 IBM Corporation * diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c index ae6cd60d5c14..b64c6bc445e3 100644 --- a/drivers/cpufreq/freq_table.c +++ b/drivers/cpufreq/freq_table.c @@ -2,6 +2,11 @@ * linux/drivers/cpufreq/freq_table.c * * Copyright (C) 2002 - 2003 Dominik Brodowski + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * */ #include <linux/kernel.h> diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c index 065732ddf40c..d49361bfe670 100644 --- a/drivers/edac/mpc85xx_edac.c +++ b/drivers/edac/mpc85xx_edac.c @@ -20,7 +20,6 @@ #include <linux/of_platform.h> #include <linux/of_device.h> -#include <asm/mpc85xx.h> #include "edac_module.h" #include "edac_core.h" #include "mpc85xx_edac.h" @@ -43,8 +42,6 @@ static u32 orig_pci_err_en; static u32 orig_l2_err_disable; static u32 orig_hid1; -static const char *mpc85xx_ctl_name = "MPC85xx"; - /************************ MC SYSFS parts ***********************************/ static ssize_t mpc85xx_mc_inject_data_hi_show(struct mem_ctl_info *mci, diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 7f138c6195ff..beaf6b3a37dc 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -127,7 +127,7 @@ int __init gpiochip_reserve(int start, int ngpio) unsigned long flags; int i; - if (!gpio_is_valid(start) || !gpio_is_valid(start + ngpio)) + if (!gpio_is_valid(start) || !gpio_is_valid(start + ngpio - 1)) return -EINVAL; spin_lock_irqsave(&gpio_lock, flags); @@ -170,7 +170,7 @@ int gpiochip_add(struct gpio_chip *chip) unsigned id; int base = chip->base; - if ((!gpio_is_valid(base) || !gpio_is_valid(base + chip->ngpio)) + if ((!gpio_is_valid(base) || !gpio_is_valid(base + chip->ngpio - 1)) && base >= 0) { status = -EINVAL; goto fail; @@ -207,7 +207,7 @@ fail: /* failures here can mean systems won't boot... */ if (status) pr_err("gpiochip_add: gpios %d..%d (%s) not registered\n", - chip->base, chip->base + chip->ngpio, + chip->base, chip->base + chip->ngpio - 1, chip->label ? : "generic"); return status; } diff --git a/drivers/gpio/mcp23s08.c b/drivers/gpio/mcp23s08.c index 7fb5b9d009d4..7f92fdd5f0e2 100644 --- a/drivers/gpio/mcp23s08.c +++ b/drivers/gpio/mcp23s08.c @@ -168,7 +168,7 @@ static void mcp23s08_dbg_show(struct seq_file *s, struct gpio_chip *chip) { struct mcp23s08 *mcp; char bank; - unsigned t; + int t; unsigned mask; mcp = container_of(chip, struct mcp23s08, chip); diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c index 93f916720b13..7e40e8a55edf 100644 --- a/drivers/gpio/pca953x.c +++ b/drivers/gpio/pca953x.c @@ -30,6 +30,7 @@ static const struct i2c_device_id pca953x_id[] = { { "pca9537", 4, }, { "pca9538", 8, }, { "pca9539", 16, }, + { "pca9554", 8, }, { "pca9555", 16, }, { "pca9557", 8, }, /* REVISIT several pca955x parts should work here too */ diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 4dc76bc45c9d..00ff53348491 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -330,6 +330,20 @@ config SENSORS_CORETEMP sensor inside your CPU. Supported all are all known variants of Intel Core family. +config SENSORS_IBMAEM + tristate "IBM Active Energy Manager temperature/power sensors and control" + select IPMI_SI + depends on IPMI_HANDLER + help + If you say yes here you get support for the temperature and + power sensors and capping hardware in various IBM System X + servers that support Active Energy Manager. This includes + the x3350, x3550, x3650, x3655, x3755, x3850 M2, x3950 M2, + and certain HS2x/LS2x/QS2x blades. + + This driver can also be built as a module. If so, the module + will be called ibmaem. + config SENSORS_IBMPEX tristate "IBM PowerExecutive temperature/power sensors" select IPMI_SI diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 3bdb05a5cbd7..d098677e08de 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -41,6 +41,7 @@ obj-$(CONFIG_SENSORS_GL518SM) += gl518sm.o obj-$(CONFIG_SENSORS_GL520SM) += gl520sm.o obj-$(CONFIG_SENSORS_HDAPS) += hdaps.o obj-$(CONFIG_SENSORS_I5K_AMB) += i5k_amb.o +obj-$(CONFIG_SENSORS_IBMAEM) += ibmaem.o obj-$(CONFIG_SENSORS_IBMPEX) += ibmpex.o obj-$(CONFIG_SENSORS_IT87) += it87.o obj-$(CONFIG_SENSORS_K8TEMP) += k8temp.o diff --git a/drivers/hwmon/hdaps.c b/drivers/hwmon/hdaps.c index bab5fd2e4dfd..88e89653daaf 100644 --- a/drivers/hwmon/hdaps.c +++ b/drivers/hwmon/hdaps.c @@ -515,6 +515,7 @@ static struct dmi_system_id __initdata hdaps_whitelist[] = { HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R50"), HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R51"), HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R52"), + HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad R61i"), HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T41p"), HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T41"), HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T42p"), diff --git a/drivers/hwmon/i5k_amb.c b/drivers/hwmon/i5k_amb.c index 6ac5c6f53585..f9e2ed621f7b 100644 --- a/drivers/hwmon/i5k_amb.c +++ b/drivers/hwmon/i5k_amb.c @@ -111,6 +111,7 @@ struct i5k_amb_data { void __iomem *amb_mmio; struct i5k_device_attribute *attrs; unsigned int num_attrs; + unsigned long chipset_id; }; static ssize_t show_name(struct device *dev, struct device_attribute *devattr, @@ -382,7 +383,8 @@ err: return res; } -static int __devinit i5k_find_amb_registers(struct i5k_amb_data *data) +static int __devinit i5k_find_amb_registers(struct i5k_amb_data *data, + unsigned long devid) { struct pci_dev *pcidev; u32 val32; @@ -390,7 +392,7 @@ static int __devinit i5k_find_amb_registers(struct i5k_amb_data *data) /* Find AMB register memory space */ pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_5000_ERR, + devid, NULL); if (!pcidev) return -ENODEV; @@ -409,6 +411,8 @@ static int __devinit i5k_find_amb_registers(struct i5k_amb_data *data) goto out; } + data->chipset_id = devid; + res = 0; out: pci_dev_put(pcidev); @@ -441,10 +445,30 @@ out: return res; } +static unsigned long i5k_channel_pci_id(struct i5k_amb_data *data, + unsigned long channel) +{ + switch (data->chipset_id) { + case PCI_DEVICE_ID_INTEL_5000_ERR: + return PCI_DEVICE_ID_INTEL_5000_FBD0 + channel; + case PCI_DEVICE_ID_INTEL_5400_ERR: + return PCI_DEVICE_ID_INTEL_5400_FBD0 + channel; + default: + BUG(); + } +} + +static unsigned long chipset_ids[] = { + PCI_DEVICE_ID_INTEL_5000_ERR, + PCI_DEVICE_ID_INTEL_5400_ERR, + 0 +}; + static int __devinit i5k_amb_probe(struct platform_device *pdev) { struct i5k_amb_data *data; struct resource *reso; + int i; int res = -ENODEV; data = kzalloc(sizeof(*data), GFP_KERNEL); @@ -452,19 +476,24 @@ static int __devinit i5k_amb_probe(struct platform_device *pdev) return -ENOMEM; /* Figure out where the AMB registers live */ - res = i5k_find_amb_registers(data); + i = 0; + do { + res = i5k_find_amb_registers(data, chipset_ids[i]); + i++; + } while (res && chipset_ids[i]); + if (res) goto err; /* Copy the DIMM presence map for the first two channels */ res = i5k_channel_probe(&data->amb_present[0], - PCI_DEVICE_ID_INTEL_5000_FBD0); + i5k_channel_pci_id(data, 0)); if (res) goto err; /* Copy the DIMM presence map for the optional second two channels */ i5k_channel_probe(&data->amb_present[2], - PCI_DEVICE_ID_INTEL_5000_FBD1); + i5k_channel_pci_id(data, 1)); /* Set up resource regions */ reso = request_mem_region(data->amb_base, data->amb_len, DRVNAME); diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c new file mode 100644 index 000000000000..5c006c9a4311 --- /dev/null +++ b/drivers/hwmon/ibmaem.c @@ -0,0 +1,1111 @@ +/* + * A hwmon driver for the IBM Active Energy Manager temperature/power sensors + * and capping functionality. + * Copyright (C) 2008 IBM + * + * Author: Darrick J. Wong <djwong@us.ibm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/ipmi.h> +#include <linux/module.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/jiffies.h> +#include <linux/mutex.h> +#include <linux/kdev_t.h> +#include <linux/spinlock.h> +#include <linux/idr.h> +#include <linux/sched.h> +#include <linux/platform_device.h> +#include <linux/math64.h> +#include <linux/time.h> + +#define REFRESH_INTERVAL (HZ) +#define IPMI_TIMEOUT (30 * HZ) +#define DRVNAME "aem" + +#define AEM_NETFN 0x2E + +#define AEM_FIND_FW_CMD 0x80 +#define AEM_ELEMENT_CMD 0x81 +#define AEM_FW_INSTANCE_CMD 0x82 + +#define AEM_READ_ELEMENT_CFG 0x80 +#define AEM_READ_BUFFER 0x81 +#define AEM_READ_REGISTER 0x82 +#define AEM_WRITE_REGISTER 0x83 +#define AEM_SET_REG_MASK 0x84 +#define AEM_CLEAR_REG_MASK 0x85 +#define AEM_READ_ELEMENT_CFG2 0x86 + +#define AEM_CONTROL_ELEMENT 0 +#define AEM_ENERGY_ELEMENT 1 +#define AEM_CLOCK_ELEMENT 4 +#define AEM_POWER_CAP_ELEMENT 7 +#define AEM_EXHAUST_ELEMENT 9 +#define AEM_POWER_ELEMENT 10 + +#define AEM_MODULE_TYPE_ID 0x0001 + +#define AEM2_NUM_ENERGY_REGS 2 +#define AEM2_NUM_PCAP_REGS 6 +#define AEM2_NUM_TEMP_REGS 2 +#define AEM2_NUM_SENSORS 14 + +#define AEM1_NUM_ENERGY_REGS 1 +#define AEM1_NUM_SENSORS 3 + +/* AEM 2.x has more energy registers */ +#define AEM_NUM_ENERGY_REGS AEM2_NUM_ENERGY_REGS +/* AEM 2.x needs more sensor files */ +#define AEM_NUM_SENSORS AEM2_NUM_SENSORS + +#define POWER_CAP 0 +#define POWER_CAP_MAX_HOTPLUG 1 +#define POWER_CAP_MAX 2 +#define POWER_CAP_MIN_WARNING 3 +#define POWER_CAP_MIN 4 +#define POWER_AUX 5 + +#define AEM_DEFAULT_POWER_INTERVAL 1000 +#define AEM_MIN_POWER_INTERVAL 200 +#define UJ_PER_MJ 1000L + +static DEFINE_IDR(aem_idr); +static DEFINE_SPINLOCK(aem_idr_lock); + +static struct device_driver aem_driver = { + .name = DRVNAME, + .bus = &platform_bus_type, +}; + +struct aem_ipmi_data { + struct completion read_complete; + struct ipmi_addr address; + ipmi_user_t user; + int interface; + + struct kernel_ipmi_msg tx_message; + long tx_msgid; + + void *rx_msg_data; + unsigned short rx_msg_len; + unsigned char rx_result; + int rx_recv_type; + + struct device *bmc_device; +}; + +struct aem_ro_sensor_template { + char *label; + ssize_t (*show)(struct device *dev, + struct device_attribute *devattr, + char *buf); + int index; +}; + +struct aem_rw_sensor_template { + char *label; + ssize_t (*show)(struct device *dev, + struct device_attribute *devattr, + char *buf); + ssize_t (*set)(struct device *dev, + struct device_attribute *devattr, + const char *buf, size_t count); + int index; +}; + +struct aem_data { + struct list_head list; + + struct device *hwmon_dev; + struct platform_device *pdev; + struct mutex lock; + char valid; + unsigned long last_updated; /* In jiffies */ + u8 ver_major; + u8 ver_minor; + u8 module_handle; + int id; + struct aem_ipmi_data ipmi; + + /* Function to update sensors */ + void (*update)(struct aem_data *data); + + /* + * AEM 1.x sensors: + * Available sensors: + * Energy meter + * Power meter + * + * AEM 2.x sensors: + * Two energy meters + * Two power meters + * Two temperature sensors + * Six power cap registers + */ + + /* sysfs attrs */ + struct sensor_device_attribute sensors[AEM_NUM_SENSORS]; + + /* energy use in mJ */ + u64 energy[AEM_NUM_ENERGY_REGS]; + + /* power sampling interval in ms */ + unsigned long power_period[AEM_NUM_ENERGY_REGS]; + + /* Everything past here is for AEM2 only */ + + /* power caps in dW */ + u16 pcap[AEM2_NUM_PCAP_REGS]; + + /* exhaust temperature in C */ + u8 temp[AEM2_NUM_TEMP_REGS]; +}; + +/* Data structures returned by the AEM firmware */ +struct aem_iana_id { + u8 bytes[3]; +}; +static struct aem_iana_id system_x_id = { + .bytes = {0x4D, 0x4F, 0x00} +}; + +/* These are used to find AEM1 instances */ +struct aem_find_firmware_req { + struct aem_iana_id id; + u8 rsvd; + u16 index; + u16 module_type_id; +} __packed; + +struct aem_find_firmware_resp { + struct aem_iana_id id; + u8 num_instances; +} __packed; + +/* These are used to find AEM2 instances */ +struct aem_find_instance_req { + struct aem_iana_id id; + u8 instance_number; + u16 module_type_id; +} __packed; + +struct aem_find_instance_resp { + struct aem_iana_id id; + u8 num_instances; + u8 major; + u8 minor; + u8 module_handle; + u16 record_id; +} __packed; + +/* These are used to query sensors */ +struct aem_read_sensor_req { + struct aem_iana_id id; + u8 module_handle; + u8 element; + u8 subcommand; + u8 reg; + u8 rx_buf_size; +} __packed; + +struct aem_read_sensor_resp { + struct aem_iana_id id; + u8 bytes[0]; +} __packed; + +/* Data structures to talk to the IPMI layer */ +struct aem_driver_data { + struct list_head aem_devices; + struct ipmi_smi_watcher bmc_events; + struct ipmi_user_hndl ipmi_hndlrs; +}; + +static void aem_register_bmc(int iface, struct device *dev); +static void aem_bmc_gone(int iface); +static void aem_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data); + +static void aem_remove_sensors(struct aem_data *data); +static int aem_init_aem1(struct aem_ipmi_data *probe); +static int aem_init_aem2(struct aem_ipmi_data *probe); +static int aem1_find_sensors(struct aem_data *data); +static int aem2_find_sensors(struct aem_data *data); +static void update_aem1_sensors(struct aem_data *data); +static void update_aem2_sensors(struct aem_data *data); + +static struct aem_driver_data driver_data = { + .aem_devices = LIST_HEAD_INIT(driver_data.aem_devices), + .bmc_events = { + .owner = THIS_MODULE, + .new_smi = aem_register_bmc, + .smi_gone = aem_bmc_gone, + }, + .ipmi_hndlrs = { + .ipmi_recv_hndl = aem_msg_handler, + }, +}; + +/* Functions to talk to the IPMI layer */ + +/* Initialize IPMI address, message buffers and user data */ +static int aem_init_ipmi_data(struct aem_ipmi_data *data, int iface, + struct device *bmc) +{ + int err; + + init_completion(&data->read_complete); + data->bmc_device = bmc; + + /* Initialize IPMI address */ + data->address.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE; + data->address.channel = IPMI_BMC_CHANNEL; + data->address.data[0] = 0; + data->interface = iface; + + /* Initialize message buffers */ + data->tx_msgid = 0; + data->tx_message.netfn = AEM_NETFN; + + /* Create IPMI messaging interface user */ + err = ipmi_create_user(data->interface, &driver_data.ipmi_hndlrs, + data, &data->user); + if (err < 0) { + dev_err(bmc, "Unable to register user with IPMI " + "interface %d\n", data->interface); + return -EACCES; + } + + return 0; +} + +/* Send an IPMI command */ +static int aem_send_message(struct aem_ipmi_data *data) +{ + int err; + + err = ipmi_validate_addr(&data->address, sizeof(data->address)); + if (err) + goto out; + + data->tx_msgid++; + err = ipmi_request_settime(data->user, &data->address, data->tx_msgid, + &data->tx_message, data, 0, 0, 0); + if (err) + goto out1; + + return 0; +out1: + dev_err(data->bmc_device, "request_settime=%x\n", err); + return err; +out: + dev_err(data->bmc_device, "validate_addr=%x\n", err); + return err; +} + +/* Dispatch IPMI messages to callers */ +static void aem_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data) +{ + unsigned short rx_len; + struct aem_ipmi_data *data = user_msg_data; + + if (msg->msgid != data->tx_msgid) { + dev_err(data->bmc_device, "Mismatch between received msgid " + "(%02x) and transmitted msgid (%02x)!\n", + (int)msg->msgid, + (int)data->tx_msgid); + ipmi_free_recv_msg(msg); + return; + } + + data->rx_recv_type = msg->recv_type; + if (msg->msg.data_len > 0) + data->rx_result = msg->msg.data[0]; + else + data->rx_result = IPMI_UNKNOWN_ERR_COMPLETION_CODE; + + if (msg->msg.data_len > 1) { + rx_len = msg->msg.data_len - 1; + if (data->rx_msg_len < rx_len) + rx_len = data->rx_msg_len; + data->rx_msg_len = rx_len; + memcpy(data->rx_msg_data, msg->msg.data + 1, data->rx_msg_len); + } else + data->rx_msg_len = 0; + + ipmi_free_recv_msg(msg); + complete(&data->read_complete); +} + +/* ID functions */ + +/* Obtain an id */ +static int aem_idr_get(int *id) +{ + int i, err; + +again: + if (unlikely(!idr_pre_get(&aem_idr, GFP_KERNEL))) + return -ENOMEM; + + spin_lock(&aem_idr_lock); + err = idr_get_new(&aem_idr, NULL, &i); + spin_unlock(&aem_idr_lock); + + if (unlikely(err == -EAGAIN)) + goto again; + else if (unlikely(err)) + return err; + + *id = i & MAX_ID_MASK; + return 0; +} + +/* Release an object ID */ +static void aem_idr_put(int id) +{ + spin_lock(&aem_idr_lock); + idr_remove(&aem_idr, id); + spin_unlock(&aem_idr_lock); +} + +/* Sensor support functions */ + +/* Read a sensor value */ +static int aem_read_sensor(struct aem_data *data, u8 elt, u8 reg, + void *buf, size_t size) +{ + int rs_size, res; + struct aem_read_sensor_req rs_req; + struct aem_read_sensor_resp *rs_resp; + struct aem_ipmi_data *ipmi = &data->ipmi; + + /* AEM registers are 1, 2, 4 or 8 bytes */ + switch (size) { + case 1: + case 2: + case 4: + case 8: + break; + default: + return -EINVAL; + } + + rs_req.id = system_x_id; + rs_req.module_handle = data->module_handle; + rs_req.element = elt; + rs_req.subcommand = AEM_READ_REGISTER; + rs_req.reg = reg; + rs_req.rx_buf_size = size; + + ipmi->tx_message.cmd = AEM_ELEMENT_CMD; + ipmi->tx_message.data = (char *)&rs_req; + ipmi->tx_message.data_len = sizeof(rs_req); + + rs_size = sizeof(*rs_resp) + size; + rs_resp = kzalloc(rs_size, GFP_KERNEL); + if (!rs_resp) + return -ENOMEM; + + ipmi->rx_msg_data = rs_resp; + ipmi->rx_msg_len = rs_size; + + aem_send_message(ipmi); + + res = wait_for_completion_timeout(&ipmi->read_complete, IPMI_TIMEOUT); + if (!res) + return -ETIMEDOUT; + + if (ipmi->rx_result || ipmi->rx_msg_len != rs_size || + memcmp(&rs_resp->id, &system_x_id, sizeof(system_x_id))) { + kfree(rs_resp); + return -ENOENT; + } + + switch (size) { + case 1: { + u8 *x = buf; + *x = rs_resp->bytes[0]; + break; + } + case 2: { + u16 *x = buf; + *x = be16_to_cpup((u16 *)rs_resp->bytes); + break; + } + case 4: { + u32 *x = buf; + *x = be32_to_cpup((u32 *)rs_resp->bytes); + break; + } + case 8: { + u64 *x = buf; + *x = be64_to_cpup((u64 *)rs_resp->bytes); + break; + } + } + + return 0; +} + +/* Update AEM energy registers */ +static void update_aem_energy(struct aem_data *data) +{ + aem_read_sensor(data, AEM_ENERGY_ELEMENT, 0, &data->energy[0], 8); + if (data->ver_major < 2) + return; + aem_read_sensor(data, AEM_ENERGY_ELEMENT, 1, &data->energy[1], 8); +} + +/* Update all AEM1 sensors */ +static void update_aem1_sensors(struct aem_data *data) +{ + mutex_lock(&data->lock); + if (time_before(jiffies, data->last_updated + REFRESH_INTERVAL) && + data->valid) + goto out; + + update_aem_energy(data); +out: + mutex_unlock(&data->lock); +} + +/* Update all AEM2 sensors */ +static void update_aem2_sensors(struct aem_data *data) +{ + int i; + + mutex_lock(&data->lock); + if (time_before(jiffies, data->last_updated + REFRESH_INTERVAL) && + data->valid) + goto out; + + update_aem_energy(data); + aem_read_sensor(data, AEM_EXHAUST_ELEMENT, 0, &data->temp[0], 1); + aem_read_sensor(data, AEM_EXHAUST_ELEMENT, 1, &data->temp[1], 1); + + for (i = POWER_CAP; i <= POWER_AUX; i++) + aem_read_sensor(data, AEM_POWER_CAP_ELEMENT, i, + &data->pcap[i], 2); +out: + mutex_unlock(&data->lock); +} + +/* Delete an AEM instance */ +static void aem_delete(struct aem_data *data) +{ + list_del(&data->list); + aem_remove_sensors(data); + hwmon_device_unregister(data->hwmon_dev); + ipmi_destroy_user(data->ipmi.user); + dev_set_drvdata(&data->pdev->dev, NULL); + platform_device_unregister(data->pdev); + aem_idr_put(data->id); + kfree(data); +} + +/* Probe functions for AEM1 devices */ + +/* Retrieve version and module handle for an AEM1 instance */ +static int aem_find_aem1_count(struct aem_ipmi_data *data) +{ + int res; + struct aem_find_firmware_req ff_req; + struct aem_find_firmware_resp ff_resp; + + ff_req.id = system_x_id; + ff_req.index = 0; + ff_req.module_type_id = cpu_to_be16(AEM_MODULE_TYPE_ID); + + data->tx_message.cmd = AEM_FIND_FW_CMD; + data->tx_message.data = (char *)&ff_req; + data->tx_message.data_len = sizeof(ff_req); + + data->rx_msg_data = &ff_resp; + data->rx_msg_len = sizeof(ff_resp); + + aem_send_message(data); + + res = wait_for_completion_timeout(&data->read_complete, IPMI_TIMEOUT); + if (!res) + return -ETIMEDOUT; + + if (data->rx_result || data->rx_msg_len != sizeof(ff_resp) || + memcmp(&ff_resp.id, &system_x_id, sizeof(system_x_id))) + return -ENOENT; + + return ff_resp.num_instances; +} + +/* Find and initialize one AEM1 instance */ +static int aem_init_aem1_inst(struct aem_ipmi_data *probe, u8 module_handle) +{ + struct aem_data *data; + int i; + int res = -ENOMEM; + + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return res; + mutex_init(&data->lock); + + /* Copy instance data */ + data->ver_major = 1; + data->ver_minor = 0; + data->module_handle = module_handle; + for (i = 0; i < AEM1_NUM_ENERGY_REGS; i++) + data->power_period[i] = AEM_DEFAULT_POWER_INTERVAL; + + /* Create sub-device for this fw instance */ + if (aem_idr_get(&data->id)) + goto id_err; + + data->pdev = platform_device_alloc(DRVNAME, data->id); + if (!data->pdev) + goto dev_err; + data->pdev->dev.driver = &aem_driver; + + res = platform_device_add(data->pdev); + if (res) + goto ipmi_err; + + dev_set_drvdata(&data->pdev->dev, data); + + /* Set up IPMI interface */ + if (aem_init_ipmi_data(&data->ipmi, probe->interface, + probe->bmc_device)) + goto ipmi_err; + + /* Register with hwmon */ + data->hwmon_dev = hwmon_device_register(&data->pdev->dev); + + if (IS_ERR(data->hwmon_dev)) { + dev_err(&data->pdev->dev, "Unable to register hwmon " + "device for IPMI interface %d\n", + probe->interface); + goto hwmon_reg_err; + } + + data->update = update_aem1_sensors; + + /* Find sensors */ + if (aem1_find_sensors(data)) + goto sensor_err; + + /* Add to our list of AEM devices */ + list_add_tail(&data->list, &driver_data.aem_devices); + + dev_info(data->ipmi.bmc_device, "Found AEM v%d.%d at 0x%X\n", + data->ver_major, data->ver_minor, + data->module_handle); + return 0; + +sensor_err: + hwmon_device_unregister(data->hwmon_dev); +hwmon_reg_err: + ipmi_destroy_user(data->ipmi.user); +ipmi_err: + dev_set_drvdata(&data->pdev->dev, NULL); + platform_device_unregister(data->pdev); +dev_err: + aem_idr_put(data->id); +id_err: + kfree(data); + + return res; +} + +/* Find and initialize all AEM1 instances */ +static int aem_init_aem1(struct aem_ipmi_data *probe) +{ + int num, i, err; + + num = aem_find_aem1_count(probe); + for (i = 0; i < num; i++) { + err = aem_init_aem1_inst(probe, i); + if (err) { + dev_err(probe->bmc_device, + "Error %d initializing AEM1 0x%X\n", + err, i); + return err; + } + } + + return 0; +} + +/* Probe functions for AEM2 devices */ + +/* Retrieve version and module handle for an AEM2 instance */ +static int aem_find_aem2(struct aem_ipmi_data *data, + struct aem_find_instance_resp *fi_resp, + int instance_num) +{ + int res; + struct aem_find_instance_req fi_req; + + fi_req.id = system_x_id; + fi_req.instance_number = instance_num; + fi_req.module_type_id = cpu_to_be16(AEM_MODULE_TYPE_ID); + + data->tx_message.cmd = AEM_FW_INSTANCE_CMD; + data->tx_message.data = (char *)&fi_req; + data->tx_message.data_len = sizeof(fi_req); + + data->rx_msg_data = fi_resp; + data->rx_msg_len = sizeof(*fi_resp); + + aem_send_message(data); + + res = wait_for_completion_timeout(&data->read_complete, IPMI_TIMEOUT); + if (!res) + return -ETIMEDOUT; + + if (data->rx_result || data->rx_msg_len != sizeof(*fi_resp) || + memcmp(&fi_resp->id, &system_x_id, sizeof(system_x_id))) + return -ENOENT; + + return 0; +} + +/* Find and initialize one AEM2 instance */ +static int aem_init_aem2_inst(struct aem_ipmi_data *probe, + struct aem_find_instance_resp *fi_resp) +{ + struct aem_data *data; + int i; + int res = -ENOMEM; + + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return res; + mutex_init(&data->lock); + + /* Copy instance data */ + data->ver_major = fi_resp->major; + data->ver_minor = fi_resp->minor; + data->module_handle = fi_resp->module_handle; + for (i = 0; i < AEM2_NUM_ENERGY_REGS; i++) + data->power_period[i] = AEM_DEFAULT_POWER_INTERVAL; + + /* Create sub-device for this fw instance */ + if (aem_idr_get(&data->id)) + goto id_err; + + data->pdev = platform_device_alloc(DRVNAME, data->id); + if (!data->pdev) + goto dev_err; + data->pdev->dev.driver = &aem_driver; + + res = platform_device_add(data->pdev); + if (res) + goto ipmi_err; + + dev_set_drvdata(&data->pdev->dev, data); + + /* Set up IPMI interface */ + if (aem_init_ipmi_data(&data->ipmi, probe->interface, + probe->bmc_device)) + goto ipmi_err; + + /* Register with hwmon */ + data->hwmon_dev = hwmon_device_register(&data->pdev->dev); + + if (IS_ERR(data->hwmon_dev)) { + dev_err(&data->pdev->dev, "Unable to register hwmon " + "device for IPMI interface %d\n", + probe->interface); + goto hwmon_reg_err; + } + + data->update = update_aem2_sensors; + + /* Find sensors */ + if (aem2_find_sensors(data)) + goto sensor_err; + + /* Add to our list of AEM devices */ + list_add_tail(&data->list, &driver_data.aem_devices); + + dev_info(data->ipmi.bmc_device, "Found AEM v%d.%d at 0x%X\n", + data->ver_major, data->ver_minor, + data->module_handle); + return 0; + +sensor_err: + hwmon_device_unregister(data->hwmon_dev); +hwmon_reg_err: + ipmi_destroy_user(data->ipmi.user); +ipmi_err: + dev_set_drvdata(&data->pdev->dev, NULL); + platform_device_unregister(data->pdev); +dev_err: + aem_idr_put(data->id); +id_err: + kfree(data); + + return res; +} + +/* Find and initialize all AEM2 instances */ +static int aem_init_aem2(struct aem_ipmi_data *probe) +{ + struct aem_find_instance_resp fi_resp; + int err; + int i = 0; + + while (!aem_find_aem2(probe, &fi_resp, i)) { + if (fi_resp.major != 2) { + dev_err(probe->bmc_device, "Unknown AEM v%d; please " + "report this to the maintainer.\n", + fi_resp.major); + i++; + continue; + } + err = aem_init_aem2_inst(probe, &fi_resp); + if (err) { + dev_err(probe->bmc_device, + "Error %d initializing AEM2 0x%X\n", + err, fi_resp.module_handle); + return err; + } + i++; + } + + return 0; +} + +/* Probe a BMC for AEM firmware instances */ +static void aem_register_bmc(int iface, struct device *dev) +{ + struct aem_ipmi_data probe; + + if (aem_init_ipmi_data(&probe, iface, dev)) + return; + + /* Ignore probe errors; they won't cause problems */ + aem_init_aem1(&probe); + aem_init_aem2(&probe); + + ipmi_destroy_user(probe.user); +} + +/* Handle BMC deletion */ +static void aem_bmc_gone(int iface) +{ + struct aem_data *p1, *next1; + + list_for_each_entry_safe(p1, next1, &driver_data.aem_devices, list) + if (p1->ipmi.interface == iface) + aem_delete(p1); +} + +/* sysfs support functions */ + +/* AEM device name */ +static ssize_t show_name(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct aem_data *data = dev_get_drvdata(dev); + + return sprintf(buf, "%s%d\n", DRVNAME, data->ver_major); +} +static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0); + +/* AEM device version */ +static ssize_t show_version(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct aem_data *data = dev_get_drvdata(dev); + + return sprintf(buf, "%d.%d\n", data->ver_major, data->ver_minor); +} +static SENSOR_DEVICE_ATTR(version, S_IRUGO, show_version, NULL, 0); + +/* Display power use */ +static ssize_t aem_show_power(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct aem_data *data = dev_get_drvdata(dev); + u64 before, after, delta, time; + signed long leftover; + struct timespec b, a; + + mutex_lock(&data->lock); + update_aem_energy(data); + getnstimeofday(&b); + before = data->energy[attr->index]; + + leftover = schedule_timeout_interruptible( + msecs_to_jiffies(data->power_period[attr->index]) + ); + if (leftover) { + mutex_unlock(&data->lock); + return 0; + } + + update_aem_energy(data); + getnstimeofday(&a); + after = data->energy[attr->index]; + mutex_unlock(&data->lock); + + time = timespec_to_ns(&a) - timespec_to_ns(&b); + delta = (after - before) * UJ_PER_MJ; + + return sprintf(buf, "%llu\n", + (unsigned long long)div64_u64(delta * NSEC_PER_SEC, time)); +} + +/* Display energy use */ +static ssize_t aem_show_energy(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct aem_data *a = dev_get_drvdata(dev); + a->update(a); + + return sprintf(buf, "%llu\n", + (unsigned long long)a->energy[attr->index] * 1000); +} + +/* Display power interval registers */ +static ssize_t aem_show_power_period(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct aem_data *a = dev_get_drvdata(dev); + a->update(a); + + return sprintf(buf, "%lu\n", a->power_period[attr->index]); +} + +/* Set power interval registers */ +static ssize_t aem_set_power_period(struct device *dev, + struct device_attribute *devattr, + const char *buf, size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct aem_data *a = dev_get_drvdata(dev); + unsigned long temp; + int res; + + res = strict_strtoul(buf, 10, &temp); + if (res) + return res; + + if (temp < AEM_MIN_POWER_INTERVAL) + return -EINVAL; + + mutex_lock(&a->lock); + a->power_period[attr->index] = temp; + mutex_unlock(&a->lock); + + return count; +} + +/* Discover sensors on an AEM device */ +static int aem_register_sensors(struct aem_data *data, + struct aem_ro_sensor_template *ro, + struct aem_rw_sensor_template *rw) +{ + struct device *dev = &data->pdev->dev; + struct sensor_device_attribute *sensors = data->sensors; + int err; + + /* Set up read-only sensors */ + while (ro->label) { + sensors->dev_attr.attr.name = ro->label; + sensors->dev_attr.attr.mode = S_IRUGO; + sensors->dev_attr.show = ro->show; + sensors->index = ro->index; + + err = device_create_file(dev, &sensors->dev_attr); + if (err) { + sensors->dev_attr.attr.name = NULL; + goto error; + } + sensors++; + ro++; + } + + /* Set up read-write sensors */ + while (rw->label) { + sensors->dev_attr.attr.name = rw->label; + sensors->dev_attr.attr.mode = S_IRUGO | S_IWUSR; + sensors->dev_attr.show = rw->show; + sensors->dev_attr.store = rw->set; + sensors->index = rw->index; + + err = device_create_file(dev, &sensors->dev_attr); + if (err) { + sensors->dev_attr.attr.name = NULL; + goto error; + } + sensors++; + rw++; + } + + err = device_create_file(dev, &sensor_dev_attr_name.dev_attr); + if (err) + goto error; + err = device_create_file(dev, &sensor_dev_attr_version.dev_attr); + return err; + +error: + aem_remove_sensors(data); + return err; +} + +/* sysfs support functions for AEM2 sensors */ + +/* Display temperature use */ +static ssize_t aem2_show_temp(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct aem_data *a = dev_get_drvdata(dev); + a->update(a); + + return sprintf(buf, "%u\n", a->temp[attr->index] * 1000); +} + +/* Display power-capping registers */ +static ssize_t aem2_show_pcap_value(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct aem_data *a = dev_get_drvdata(dev); + a->update(a); + + return sprintf(buf, "%u\n", a->pcap[attr->index] * 100000); +} + +/* Remove sensors attached to an AEM device */ +static void aem_remove_sensors(struct aem_data *data) +{ + int i; + + for (i = 0; i < AEM_NUM_SENSORS; i++) { + if (!data->sensors[i].dev_attr.attr.name) + continue; + device_remove_file(&data->pdev->dev, + &data->sensors[i].dev_attr); + } + + device_remove_file(&data->pdev->dev, + &sensor_dev_attr_name.dev_attr); + device_remove_file(&data->pdev->dev, + &sensor_dev_attr_version.dev_attr); +} + +/* Sensor probe functions */ + +/* Description of AEM1 sensors */ +static struct aem_ro_sensor_template aem1_ro_sensors[] = { +{"energy1_input", aem_show_energy, 0}, +{"power1_average", aem_show_power, 0}, +{NULL, NULL, 0}, +}; + +static struct aem_rw_sensor_template aem1_rw_sensors[] = { +{"power1_average_interval", aem_show_power_period, aem_set_power_period, 0}, +{NULL, NULL, NULL, 0}, +}; + +/* Description of AEM2 sensors */ +static struct aem_ro_sensor_template aem2_ro_sensors[] = { +{"energy1_input", aem_show_energy, 0}, +{"energy2_input", aem_show_energy, 1}, +{"power1_average", aem_show_power, 0}, +{"power2_average", aem_show_power, 1}, +{"temp1_input", aem2_show_temp, 0}, +{"temp2_input", aem2_show_temp, 1}, + +{"power4_average", aem2_show_pcap_value, POWER_CAP_MAX_HOTPLUG}, +{"power5_average", aem2_show_pcap_value, POWER_CAP_MAX}, +{"power6_average", aem2_show_pcap_value, POWER_CAP_MIN_WARNING}, +{"power7_average", aem2_show_pcap_value, POWER_CAP_MIN}, + +{"power3_average", aem2_show_pcap_value, POWER_AUX}, +{"power_cap", aem2_show_pcap_value, POWER_CAP}, +{NULL, NULL, 0}, +}; + +static struct aem_rw_sensor_template aem2_rw_sensors[] = { +{"power1_average_interval", aem_show_power_period, aem_set_power_period, 0}, +{"power2_average_interval", aem_show_power_period, aem_set_power_period, 1}, +{NULL, NULL, NULL, 0}, +}; + +/* Set up AEM1 sensor attrs */ +static int aem1_find_sensors(struct aem_data *data) +{ + return aem_register_sensors(data, aem1_ro_sensors, aem1_rw_sensors); +} + +/* Set up AEM2 sensor attrs */ +static int aem2_find_sensors(struct aem_data *data) +{ + return aem_register_sensors(data, aem2_ro_sensors, aem2_rw_sensors); +} + +/* Module init/exit routines */ + +static int __init aem_init(void) +{ + int res; + + res = driver_register(&aem_driver); + if (res) { + printk(KERN_ERR "Can't register aem driver\n"); + return res; + } + + res = ipmi_smi_watcher_register(&driver_data.bmc_events); + if (res) + goto ipmi_reg_err; + return 0; + +ipmi_reg_err: + driver_unregister(&aem_driver); + return res; + +} + +static void __exit aem_exit(void) +{ + struct aem_data *p1, *next1; + + ipmi_smi_watcher_unregister(&driver_data.bmc_events); + driver_unregister(&aem_driver); + list_for_each_entry_safe(p1, next1, &driver_data.aem_devices, list) + aem_delete(p1); +} + +MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); +MODULE_DESCRIPTION("IBM Active Energy Manager power/temp sensor driver"); +MODULE_LICENSE("GPL"); + +module_init(aem_init); +module_exit(aem_exit); diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index fbe16d5250a4..1adf2efd3cb3 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -747,7 +747,9 @@ static int handle_outgoing_dr_smp(struct ib_mad_agent_private *mad_agent_priv, break; case IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED: kmem_cache_free(ib_mad_cache, mad_priv); - break; + kfree(local); + ret = 1; + goto out; case IB_MAD_RESULT_SUCCESS: /* Treat like an incoming receive MAD */ port_priv = ib_get_mad_port(mad_agent_priv->agent.device, diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c index 79dbe5beae52..992613799228 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_qp.c +++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c @@ -229,7 +229,7 @@ int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, struct ib_send_wr **bad_wr) { int err = 0; - u8 t3_wr_flit_cnt; + u8 uninitialized_var(t3_wr_flit_cnt); enum t3_wr_opcode t3_wr_opcode = 0; enum t3_wr_flags t3_wr_flags; struct iwch_qp *qhp; diff --git a/drivers/infiniband/hw/ipath/ipath_sdma.c b/drivers/infiniband/hw/ipath/ipath_sdma.c index 3697449c1ba4..0a8c1b8091a2 100644 --- a/drivers/infiniband/hw/ipath/ipath_sdma.c +++ b/drivers/infiniband/hw/ipath/ipath_sdma.c @@ -345,7 +345,7 @@ resched: * state change */ if (jiffies > dd->ipath_sdma_abort_jiffies) { - ipath_dbg("looping with status 0x%016llx\n", + ipath_dbg("looping with status 0x%08lx\n", dd->ipath_sdma_status); dd->ipath_sdma_abort_jiffies = jiffies + 5 * HZ; } @@ -615,7 +615,7 @@ void ipath_restart_sdma(struct ipath_devdata *dd) } spin_unlock_irqrestore(&dd->ipath_sdma_lock, flags); if (!needed) { - ipath_dbg("invalid attempt to restart SDMA, status 0x%016llx\n", + ipath_dbg("invalid attempt to restart SDMA, status 0x%08lx\n", dd->ipath_sdma_status); goto bail; } diff --git a/drivers/infiniband/hw/ipath/ipath_uc.c b/drivers/infiniband/hw/ipath/ipath_uc.c index 7fd18e833907..0596ec16fcbd 100644 --- a/drivers/infiniband/hw/ipath/ipath_uc.c +++ b/drivers/infiniband/hw/ipath/ipath_uc.c @@ -407,12 +407,11 @@ void ipath_uc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, dev->n_pkt_drops++; goto done; } - /* XXX Need to free SGEs */ + wc.opcode = IB_WC_RECV; last_imm: ipath_copy_sge(&qp->r_sge, data, tlen); wc.wr_id = qp->r_wr_id; wc.status = IB_WC_SUCCESS; - wc.opcode = IB_WC_RECV; wc.qp = &qp->ibqp; wc.src_qp = qp->remote_qpn; wc.slid = qp->remote_ah_attr.dlid; @@ -514,6 +513,7 @@ void ipath_uc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, goto done; } wc.byte_len = qp->r_len; + wc.opcode = IB_WC_RECV_RDMA_WITH_IMM; goto last_imm; case OP(RDMA_WRITE_LAST): diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 8e02ecfec188..a80df22deae8 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -333,6 +333,9 @@ static int set_kernel_sq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap, cap->max_inline_data + sizeof (struct mlx4_wqe_inline_seg)) + send_wqe_overhead(type, qp->flags); + if (s > dev->dev->caps.max_sq_desc_sz) + return -EINVAL; + /* * Hermon supports shrinking WQEs, such that a single work * request can include multiple units of 1 << wqe_shift. This @@ -372,9 +375,6 @@ static int set_kernel_sq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap, qp->sq.wqe_shift = ilog2(roundup_pow_of_two(s)); for (;;) { - if (1 << qp->sq.wqe_shift > dev->dev->caps.max_sq_desc_sz) - return -EINVAL; - qp->sq_max_wqes_per_wr = DIV_ROUND_UP(s, 1U << qp->sq.wqe_shift); /* @@ -395,7 +395,8 @@ static int set_kernel_sq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap, ++qp->sq.wqe_shift; } - qp->sq.max_gs = ((qp->sq_max_wqes_per_wr << qp->sq.wqe_shift) - + qp->sq.max_gs = (min(dev->dev->caps.max_sq_desc_sz, + (qp->sq_max_wqes_per_wr << qp->sq.wqe_shift)) - send_wqe_overhead(type, qp->flags)) / sizeof (struct mlx4_wqe_data_seg); @@ -411,7 +412,9 @@ static int set_kernel_sq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap, cap->max_send_wr = qp->sq.max_post = (qp->sq.wqe_cnt - qp->sq_spare_wqes) / qp->sq_max_wqes_per_wr; - cap->max_send_sge = qp->sq.max_gs; + cap->max_send_sge = min(qp->sq.max_gs, + min(dev->dev->caps.max_sq_sg, + dev->dev->caps.max_rq_sg)); /* We don't support inline sends for kernel QPs (yet) */ cap->max_inline_data = 0; @@ -1457,7 +1460,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, unsigned ind; int uninitialized_var(stamp); int uninitialized_var(size); - unsigned seglen; + unsigned uninitialized_var(seglen); int i; spin_lock_irqsave(&qp->sq.lock, flags); diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c index 9ebadd6e0cfb..200cf13fc9bb 100644 --- a/drivers/infiniband/hw/mthca/mthca_main.c +++ b/drivers/infiniband/hw/mthca/mthca_main.c @@ -45,6 +45,7 @@ #include "mthca_cmd.h" #include "mthca_profile.h" #include "mthca_memfree.h" +#include "mthca_wqe.h" MODULE_AUTHOR("Roland Dreier"); MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver"); @@ -200,7 +201,18 @@ static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim) mdev->limits.gid_table_len = dev_lim->max_gids; mdev->limits.pkey_table_len = dev_lim->max_pkeys; mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay; - mdev->limits.max_sg = dev_lim->max_sg; + /* + * Need to allow for worst case send WQE overhead and check + * whether max_desc_sz imposes a lower limit than max_sg; UD + * send has the biggest overhead. + */ + mdev->limits.max_sg = min_t(int, dev_lim->max_sg, + (dev_lim->max_desc_sz - + sizeof (struct mthca_next_seg) - + (mthca_is_memfree(mdev) ? + sizeof (struct mthca_arbel_ud_seg) : + sizeof (struct mthca_tavor_ud_seg))) / + sizeof (struct mthca_data_seg)); mdev->limits.max_wqes = dev_lim->max_qp_sz; mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp; mdev->limits.reserved_qps = dev_lim->reserved_qps; diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index d00a2c174aee..3f663fb852c1 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -194,7 +194,13 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast, /* Set the cached Q_Key before we attach if it's the broadcast group */ if (!memcmp(mcast->mcmember.mgid.raw, priv->dev->broadcast + 4, sizeof (union ib_gid))) { + spin_lock_irq(&priv->lock); + if (!priv->broadcast) { + spin_unlock_irq(&priv->lock); + return -EAGAIN; + } priv->qkey = be32_to_cpu(priv->broadcast->mcmember.qkey); + spin_unlock_irq(&priv->lock); priv->tx_wr.wr.ud.remote_qkey = priv->qkey; } diff --git a/drivers/isdn/hysdn/hycapi.c b/drivers/isdn/hysdn/hycapi.c index d3999a8e9f88..53f6ad1235db 100644 --- a/drivers/isdn/hysdn/hycapi.c +++ b/drivers/isdn/hysdn/hycapi.c @@ -462,11 +462,11 @@ static int hycapi_read_proc(char *page, char **start, off_t off, default: s = "???"; break; } len += sprintf(page+len, "%-16s %s\n", "type", s); - if ((s = cinfo->version[VER_DRIVER]) != 0) + if ((s = cinfo->version[VER_DRIVER]) != NULL) len += sprintf(page+len, "%-16s %s\n", "ver_driver", s); - if ((s = cinfo->version[VER_CARDTYPE]) != 0) + if ((s = cinfo->version[VER_CARDTYPE]) != NULL) len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s); - if ((s = cinfo->version[VER_SERIAL]) != 0) + if ((s = cinfo->version[VER_SERIAL]) != NULL) len += sprintf(page+len, "%-16s %s\n", "ver_serial", s); len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname); diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index c14dacdacfac..b26927ce889c 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -203,17 +203,6 @@ static void bitmap_checkfree(struct bitmap *bitmap, unsigned long page) * bitmap file handling - read and write the bitmap file and its superblock */ -/* copy the pathname of a file to a buffer */ -char *file_path(struct file *file, char *buf, int count) -{ - if (!buf) - return NULL; - - buf = d_path(&file->f_path, buf, count); - - return IS_ERR(buf) ? NULL : buf; -} - /* * basic page I/O operations */ @@ -721,11 +710,13 @@ static void bitmap_file_kick(struct bitmap *bitmap) if (bitmap->file) { path = kmalloc(PAGE_SIZE, GFP_KERNEL); if (path) - ptr = file_path(bitmap->file, path, PAGE_SIZE); + ptr = d_path(&bitmap->file->f_path, path, + PAGE_SIZE); + printk(KERN_ALERT "%s: kicking failed bitmap file %s from array!\n", - bmname(bitmap), ptr ? ptr : ""); + bmname(bitmap), IS_ERR(ptr) ? "" : ptr); kfree(path); } else diff --git a/drivers/md/md.c b/drivers/md/md.c index 83eb78b00137..51c19f86ff99 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -74,6 +74,8 @@ static DEFINE_SPINLOCK(pers_lock); static void md_print_devices(void); +static DECLARE_WAIT_QUEUE_HEAD(resync_wait); + #define MD_BUG(x...) { printk("md: bug in file %s, line %d\n", __FILE__, __LINE__); md_print_devices(); } /* @@ -3013,6 +3015,36 @@ degraded_show(mddev_t *mddev, char *page) static struct md_sysfs_entry md_degraded = __ATTR_RO(degraded); static ssize_t +sync_force_parallel_show(mddev_t *mddev, char *page) +{ + return sprintf(page, "%d\n", mddev->parallel_resync); +} + +static ssize_t +sync_force_parallel_store(mddev_t *mddev, const char *buf, size_t len) +{ + long n; + + if (strict_strtol(buf, 10, &n)) + return -EINVAL; + + if (n != 0 && n != 1) + return -EINVAL; + + mddev->parallel_resync = n; + + if (mddev->sync_thread) + wake_up(&resync_wait); + + return len; +} + +/* force parallel resync, even with shared block devices */ +static struct md_sysfs_entry md_sync_force_parallel = +__ATTR(sync_force_parallel, S_IRUGO|S_IWUSR, + sync_force_parallel_show, sync_force_parallel_store); + +static ssize_t sync_speed_show(mddev_t *mddev, char *page) { unsigned long resync, dt, db; @@ -3187,6 +3219,7 @@ static struct attribute *md_redundancy_attrs[] = { &md_sync_min.attr, &md_sync_max.attr, &md_sync_speed.attr, + &md_sync_force_parallel.attr, &md_sync_completed.attr, &md_max_sync.attr, &md_suspend_lo.attr, @@ -3691,6 +3724,8 @@ static int do_md_stop(mddev_t * mddev, int mode) module_put(mddev->pers->owner); mddev->pers = NULL; + /* tell userspace to handle 'inactive' */ + sysfs_notify(&mddev->kobj, NULL, "array_state"); set_capacity(disk, 0); mddev->changed = 1; @@ -3987,8 +4022,8 @@ static int get_bitmap_file(mddev_t * mddev, void __user * arg) if (!buf) goto out; - ptr = file_path(mddev->bitmap->file, buf, sizeof(file->pathname)); - if (!ptr) + ptr = d_path(&mddev->bitmap->file->f_path, buf, sizeof(file->pathname)); + if (IS_ERR(ptr)) goto out; strcpy(file->pathname, ptr); @@ -5399,7 +5434,7 @@ void md_done_sync(mddev_t *mddev, int blocks, int ok) atomic_sub(blocks, &mddev->recovery_active); wake_up(&mddev->recovery_wait); if (!ok) { - set_bit(MD_RECOVERY_ERR, &mddev->recovery); + set_bit(MD_RECOVERY_INTR, &mddev->recovery); md_wakeup_thread(mddev->thread); // stop recovery, signal do_sync .... } @@ -5435,8 +5470,11 @@ void md_write_start(mddev_t *mddev, struct bio *bi) md_wakeup_thread(mddev->thread); } spin_unlock_irq(&mddev->write_lock); + sysfs_notify(&mddev->kobj, NULL, "array_state"); } - wait_event(mddev->sb_wait, mddev->flags==0); + wait_event(mddev->sb_wait, + !test_bit(MD_CHANGE_CLEAN, &mddev->flags) && + !test_bit(MD_CHANGE_PENDING, &mddev->flags)); } void md_write_end(mddev_t *mddev) @@ -5471,13 +5509,17 @@ void md_allow_write(mddev_t *mddev) mddev->safemode = 1; spin_unlock_irq(&mddev->write_lock); md_update_sb(mddev, 0); + + sysfs_notify(&mddev->kobj, NULL, "array_state"); + /* wait for the dirty state to be recorded in the metadata */ + wait_event(mddev->sb_wait, + !test_bit(MD_CHANGE_CLEAN, &mddev->flags) && + !test_bit(MD_CHANGE_PENDING, &mddev->flags)); } else spin_unlock_irq(&mddev->write_lock); } EXPORT_SYMBOL_GPL(md_allow_write); -static DECLARE_WAIT_QUEUE_HEAD(resync_wait); - #define SYNC_MARKS 10 #define SYNC_MARK_STEP (3*HZ) void md_do_sync(mddev_t *mddev) @@ -5541,8 +5583,9 @@ void md_do_sync(mddev_t *mddev) for_each_mddev(mddev2, tmp) { if (mddev2 == mddev) continue; - if (mddev2->curr_resync && - match_mddev_units(mddev,mddev2)) { + if (!mddev->parallel_resync + && mddev2->curr_resync + && match_mddev_units(mddev, mddev2)) { DEFINE_WAIT(wq); if (mddev < mddev2 && mddev->curr_resync == 2) { /* arbitrarily yield */ @@ -5647,7 +5690,7 @@ void md_do_sync(mddev_t *mddev) sectors = mddev->pers->sync_request(mddev, j, &skipped, currspeed < speed_min(mddev)); if (sectors == 0) { - set_bit(MD_RECOVERY_ERR, &mddev->recovery); + set_bit(MD_RECOVERY_INTR, &mddev->recovery); goto out; } @@ -5670,8 +5713,7 @@ void md_do_sync(mddev_t *mddev) last_check = io_sectors; - if (test_bit(MD_RECOVERY_INTR, &mddev->recovery) || - test_bit(MD_RECOVERY_ERR, &mddev->recovery)) + if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) break; repeat: @@ -5725,8 +5767,7 @@ void md_do_sync(mddev_t *mddev) /* tell personality that we are finished */ mddev->pers->sync_request(mddev, max_sectors, &skipped, 1); - if (!test_bit(MD_RECOVERY_ERR, &mddev->recovery) && - !test_bit(MD_RECOVERY_CHECK, &mddev->recovery) && + if (!test_bit(MD_RECOVERY_CHECK, &mddev->recovery) && mddev->curr_resync > 2) { if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) { if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) { @@ -5795,7 +5836,10 @@ static int remove_and_add_spares(mddev_t *mddev) } if (mddev->degraded) { - rdev_for_each(rdev, rtmp, mddev) + rdev_for_each(rdev, rtmp, mddev) { + if (rdev->raid_disk >= 0 && + !test_bit(In_sync, &rdev->flags)) + spares++; if (rdev->raid_disk < 0 && !test_bit(Faulty, &rdev->flags)) { rdev->recovery_offset = 0; @@ -5813,6 +5857,7 @@ static int remove_and_add_spares(mddev_t *mddev) } else break; } + } } return spares; } @@ -5826,7 +5871,7 @@ static int remove_and_add_spares(mddev_t *mddev) * to do that as needed. * When it is determined that resync is needed, we set MD_RECOVERY_RUNNING in * "->recovery" and create a thread at ->sync_thread. - * When the thread finishes it sets MD_RECOVERY_DONE (and might set MD_RECOVERY_ERR) + * When the thread finishes it sets MD_RECOVERY_DONE * and wakeups up this thread which will reap the thread and finish up. * This thread also removes any faulty devices (with nr_pending == 0). * @@ -5901,8 +5946,7 @@ void md_check_recovery(mddev_t *mddev) /* resync has finished, collect result */ md_unregister_thread(mddev->sync_thread); mddev->sync_thread = NULL; - if (!test_bit(MD_RECOVERY_ERR, &mddev->recovery) && - !test_bit(MD_RECOVERY_INTR, &mddev->recovery)) { + if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery)) { /* success...*/ /* activate any spares */ mddev->pers->spare_active(mddev); @@ -5926,7 +5970,6 @@ void md_check_recovery(mddev_t *mddev) * might be left set */ clear_bit(MD_RECOVERY_NEEDED, &mddev->recovery); - clear_bit(MD_RECOVERY_ERR, &mddev->recovery); clear_bit(MD_RECOVERY_INTR, &mddev->recovery); clear_bit(MD_RECOVERY_DONE, &mddev->recovery); diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index 4f4d1f383842..e968116e0de9 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -327,7 +327,8 @@ static int multipath_remove_disk(mddev_t *mddev, int number) if (rdev) { if (test_bit(In_sync, &rdev->flags) || atomic_read(&rdev->nr_pending)) { - printk(KERN_ERR "hot-remove-disk, slot %d is identified" " but is still operational!\n", number); + printk(KERN_ERR "hot-remove-disk, slot %d is identified" + " but is still operational!\n", number); err = -EBUSY; goto abort; } diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index ac409b7d83f5..c610b947218a 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -773,7 +773,7 @@ static int make_request(struct request_queue *q, struct bio * bio) r1bio_t *r1_bio; struct bio *read_bio; int i, targets = 0, disks; - struct bitmap *bitmap = mddev->bitmap; + struct bitmap *bitmap; unsigned long flags; struct bio_list bl; struct page **behind_pages = NULL; @@ -802,6 +802,8 @@ static int make_request(struct request_queue *q, struct bio * bio) wait_barrier(conf); + bitmap = mddev->bitmap; + disk_stat_inc(mddev->gendisk, ios[rw]); disk_stat_add(mddev->gendisk, sectors[rw], bio_sectors(bio)); @@ -1025,7 +1027,7 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev) /* * if recovery is running, make sure it aborts. */ - set_bit(MD_RECOVERY_ERR, &mddev->recovery); + set_bit(MD_RECOVERY_INTR, &mddev->recovery); } else set_bit(Faulty, &rdev->flags); set_bit(MD_CHANGE_DEVS, &mddev->flags); @@ -1146,6 +1148,14 @@ static int raid1_remove_disk(mddev_t *mddev, int number) err = -EBUSY; goto abort; } + /* Only remove non-faulty devices is recovery + * is not possible. + */ + if (!test_bit(Faulty, &rdev->flags) && + mddev->degraded < conf->raid_disks) { + err = -EBUSY; + goto abort; + } p->rdev = NULL; synchronize_rcu(); if (atomic_read(&rdev->nr_pending)) { @@ -1282,6 +1292,7 @@ static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio) rdev_dec_pending(conf->mirrors[i].rdev, mddev); } else { /* fixup the bio for reuse */ + int size; sbio->bi_vcnt = vcnt; sbio->bi_size = r1_bio->sectors << 9; sbio->bi_idx = 0; @@ -1295,10 +1306,20 @@ static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio) sbio->bi_sector = r1_bio->sector + conf->mirrors[i].rdev->data_offset; sbio->bi_bdev = conf->mirrors[i].rdev->bdev; - for (j = 0; j < vcnt ; j++) - memcpy(page_address(sbio->bi_io_vec[j].bv_page), + size = sbio->bi_size; + for (j = 0; j < vcnt ; j++) { + struct bio_vec *bi; + bi = &sbio->bi_io_vec[j]; + bi->bv_offset = 0; + if (size > PAGE_SIZE) + bi->bv_len = PAGE_SIZE; + else + bi->bv_len = size; + size -= PAGE_SIZE; + memcpy(page_address(bi->bv_page), page_address(pbio->bi_io_vec[j].bv_page), PAGE_SIZE); + } } } diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 8536ede1e712..1de17da34a95 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1020,7 +1020,7 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev) /* * if recovery is running, make sure it aborts. */ - set_bit(MD_RECOVERY_ERR, &mddev->recovery); + set_bit(MD_RECOVERY_INTR, &mddev->recovery); } set_bit(Faulty, &rdev->flags); set_bit(MD_CHANGE_DEVS, &mddev->flags); @@ -1171,6 +1171,14 @@ static int raid10_remove_disk(mddev_t *mddev, int number) err = -EBUSY; goto abort; } + /* Only remove faulty devices in recovery + * is not possible. + */ + if (!test_bit(Faulty, &rdev->flags) && + enough(conf)) { + err = -EBUSY; + goto abort; + } p->rdev = NULL; synchronize_rcu(); if (atomic_read(&rdev->nr_pending)) { @@ -1237,6 +1245,7 @@ static void end_sync_write(struct bio *bio, int error) if (!uptodate) md_error(mddev, conf->mirrors[d].rdev); + update_head_pos(i, r10_bio); while (atomic_dec_and_test(&r10_bio->remaining)) { @@ -1844,7 +1853,8 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i if (rb2) atomic_dec(&rb2->remaining); r10_bio = rb2; - if (!test_and_set_bit(MD_RECOVERY_ERR, &mddev->recovery)) + if (!test_and_set_bit(MD_RECOVERY_INTR, + &mddev->recovery)) printk(KERN_INFO "raid10: %s: insufficient working devices for recovery.\n", mdname(mddev)); break; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 93fde48c0f42..425958a76b84 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -94,6 +94,8 @@ #define __inline__ #endif +#define printk_rl(args...) ((void) (printk_ratelimit() && printk(args))) + #if !RAID6_USE_EMPTY_ZERO_PAGE /* In .bss so it's zeroed */ const char raid6_empty_zero_page[PAGE_SIZE] __attribute__((aligned(256))); @@ -1143,10 +1145,12 @@ static void raid5_end_read_request(struct bio * bi, int error) set_bit(R5_UPTODATE, &sh->dev[i].flags); if (test_bit(R5_ReadError, &sh->dev[i].flags)) { rdev = conf->disks[i].rdev; - printk(KERN_INFO "raid5:%s: read error corrected (%lu sectors at %llu on %s)\n", - mdname(conf->mddev), STRIPE_SECTORS, - (unsigned long long)(sh->sector + rdev->data_offset), - bdevname(rdev->bdev, b)); + printk_rl(KERN_INFO "raid5:%s: read error corrected" + " (%lu sectors at %llu on %s)\n", + mdname(conf->mddev), STRIPE_SECTORS, + (unsigned long long)(sh->sector + + rdev->data_offset), + bdevname(rdev->bdev, b)); clear_bit(R5_ReadError, &sh->dev[i].flags); clear_bit(R5_ReWrite, &sh->dev[i].flags); } @@ -1160,16 +1164,22 @@ static void raid5_end_read_request(struct bio * bi, int error) clear_bit(R5_UPTODATE, &sh->dev[i].flags); atomic_inc(&rdev->read_errors); if (conf->mddev->degraded) - printk(KERN_WARNING "raid5:%s: read error not correctable (sector %llu on %s).\n", - mdname(conf->mddev), - (unsigned long long)(sh->sector + rdev->data_offset), - bdn); + printk_rl(KERN_WARNING + "raid5:%s: read error not correctable " + "(sector %llu on %s).\n", + mdname(conf->mddev), + (unsigned long long)(sh->sector + + rdev->data_offset), + bdn); else if (test_bit(R5_ReWrite, &sh->dev[i].flags)) /* Oh, no!!! */ - printk(KERN_WARNING "raid5:%s: read error NOT corrected!! (sector %llu on %s).\n", - mdname(conf->mddev), - (unsigned long long)(sh->sector + rdev->data_offset), - bdn); + printk_rl(KERN_WARNING + "raid5:%s: read error NOT corrected!! " + "(sector %llu on %s).\n", + mdname(conf->mddev), + (unsigned long long)(sh->sector + + rdev->data_offset), + bdn); else if (atomic_read(&rdev->read_errors) > conf->max_nr_stripes) printk(KERN_WARNING @@ -1258,7 +1268,7 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev) /* * if recovery was running, make sure it aborts. */ - set_bit(MD_RECOVERY_ERR, &mddev->recovery); + set_bit(MD_RECOVERY_INTR, &mddev->recovery); } set_bit(Faulty, &rdev->flags); printk (KERN_ALERT @@ -4564,6 +4574,14 @@ static int raid5_remove_disk(mddev_t *mddev, int number) err = -EBUSY; goto abort; } + /* Only remove non-faulty devices if recovery + * isn't possible. + */ + if (!test_bit(Faulty, &rdev->flags) && + mddev->degraded <= conf->max_degraded) { + err = -EBUSY; + goto abort; + } p->rdev = NULL; synchronize_rcu(); if (atomic_read(&rdev->nr_pending)) { diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index b31faeccb9cd..867f6fd5c2c0 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -1278,7 +1278,7 @@ static irqreturn_t twa_interrupt(int irq, void *dev_instance) error = 0; /* Check for command packet errors */ if (full_command_packet->command.newcommand.status != 0) { - if (tw_dev->srb[request_id] != 0) { + if (tw_dev->srb[request_id] != NULL) { error = twa_fill_sense(tw_dev, request_id, 1, 1); } else { /* Skip ioctl error prints */ @@ -1290,7 +1290,7 @@ static irqreturn_t twa_interrupt(int irq, void *dev_instance) /* Check for correct state */ if (tw_dev->state[request_id] != TW_S_POSTED) { - if (tw_dev->srb[request_id] != 0) { + if (tw_dev->srb[request_id] != NULL) { TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1a, "Received a request id that wasn't posted"); TW_CLEAR_ALL_INTERRUPTS(tw_dev); goto twa_interrupt_bail; @@ -1298,7 +1298,7 @@ static irqreturn_t twa_interrupt(int irq, void *dev_instance) } /* Check for internal command completion */ - if (tw_dev->srb[request_id] == 0) { + if (tw_dev->srb[request_id] == NULL) { if (request_id != tw_dev->chrdev_request_id) { if (twa_aen_complete(tw_dev, request_id)) TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1b, "Error completing AEN during attention interrupt"); diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c index 1dca1775f4b1..0899cb61e3dd 100644 --- a/drivers/scsi/aha152x.c +++ b/drivers/scsi/aha152x.c @@ -3582,7 +3582,7 @@ static int checksetup(struct aha152x_setup *setup) if (i == ARRAY_SIZE(ports)) return 0; - if ( request_region(setup->io_port, IO_RANGE, "aha152x")==0 ) { + if (!request_region(setup->io_port, IO_RANGE, "aha152x")) { printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup->io_port); return 0; } @@ -3842,7 +3842,7 @@ static int __init aha152x_init(void) if ((setup_count == 1) && (setup[0].io_port == ports[i])) continue; - if ( request_region(ports[i], IO_RANGE, "aha152x")==0 ) { + if (!request_region(ports[i], IO_RANGE, "aha152x")) { printk(KERN_ERR "aha152x: io port 0x%x busy.\n", ports[i]); continue; } diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c index db6de5e6afb3..7d311541c76c 100644 --- a/drivers/scsi/atp870u.c +++ b/drivers/scsi/atp870u.c @@ -747,7 +747,7 @@ static void send_s870(struct atp_unit *dev,unsigned char c) dev->quhd[c] = 0; } workreq = dev->quereq[c][dev->quhd[c]]; - if (dev->id[c][scmd_id(workreq)].curr_req == 0) { + if (dev->id[c][scmd_id(workreq)].curr_req == NULL) { dev->id[c][scmd_id(workreq)].curr_req = workreq; dev->last_cmd[c] = scmd_id(workreq); goto cmd_subp; diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c index aaa48e0c8ed0..da876d3924be 100644 --- a/drivers/scsi/hptiop.c +++ b/drivers/scsi/hptiop.c @@ -444,7 +444,7 @@ static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index) if (!(pci_resource_flags(pcidev, index) & IORESOURCE_MEM)) { printk(KERN_ERR "scsi%d: pci resource invalid\n", hba->host->host_no); - return 0; + return NULL; } mem_base_phy = pci_resource_start(pcidev, index); @@ -454,7 +454,7 @@ static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index) if (!mem_base_virt) { printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n", hba->host->host_no); - return 0; + return NULL; } return mem_base_virt; } @@ -476,11 +476,11 @@ static void hptiop_unmap_pci_bar_itl(struct hptiop_hba *hba) static int hptiop_map_pci_bar_mv(struct hptiop_hba *hba) { hba->u.mv.regs = hptiop_map_pci_bar(hba, 0); - if (hba->u.mv.regs == 0) + if (hba->u.mv.regs == NULL) return -1; hba->u.mv.mu = hptiop_map_pci_bar(hba, 2); - if (hba->u.mv.mu == 0) { + if (hba->u.mv.mu == NULL) { iounmap(hba->u.mv.regs); return -1; } @@ -1210,8 +1210,8 @@ static void hptiop_remove(struct pci_dev *pcidev) static struct hptiop_adapter_ops hptiop_itl_ops = { .iop_wait_ready = iop_wait_ready_itl, - .internal_memalloc = 0, - .internal_memfree = 0, + .internal_memalloc = NULL, + .internal_memfree = NULL, .map_pci_bar = hptiop_map_pci_bar_itl, .unmap_pci_bar = hptiop_unmap_pci_bar_itl, .enable_intr = hptiop_enable_intr_itl, diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index 51e2f299dbbb..3754ab87f89a 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -2811,7 +2811,7 @@ qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) /* Check for room in outstanding command list. */ for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS && - ha->outstanding_cmds[cnt] != 0; cnt++); + ha->outstanding_cmds[cnt] != NULL; cnt++); if (cnt >= MAX_OUTSTANDING_COMMANDS) { status = 1; diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c index 53fa19cf2f06..788c3559522d 100644 --- a/drivers/serial/8250_pci.c +++ b/drivers/serial/8250_pci.c @@ -2602,7 +2602,12 @@ static struct pci_device_id serial_pci_tbl[] = { { PCI_VENDOR_ID_INTASHIELD, PCI_DEVICE_ID_INTASHIELD_IS200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, /* 135a.0811 */ pbn_b2_2_115200 }, - + /* + * IntaShield IS-400 + */ + { PCI_VENDOR_ID_INTASHIELD, PCI_DEVICE_ID_INTASHIELD_IS400, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, /* 135a.0dc0 */ + pbn_b2_4_115200 }, /* * Perle PCI-RAS cards */ diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index eab032733790..53b03c629aff 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -2054,6 +2054,8 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *port) int uart_resume_port(struct uart_driver *drv, struct uart_port *port) { struct uart_state *state = drv->state + port->line; + struct device *tty_dev; + struct uart_match match = {port, drv}; mutex_lock(&state->mutex); @@ -2063,7 +2065,8 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port) return 0; } - if (!port->suspended) { + tty_dev = device_find_child(port->dev, &match, serial_match_port); + if (!port->suspended && device_may_wakeup(tty_dev)) { disable_irq_wake(port->irq); mutex_unlock(&state->mutex); return 0; diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index b3518ca9f04e..41620c0fb046 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -68,6 +68,7 @@ static unsigned long minors[N_SPI_MINORS / BITS_PER_LONG]; struct spidev_data { struct device dev; + spinlock_t spi_lock; struct spi_device *spi; struct list_head device_entry; @@ -85,12 +86,75 @@ MODULE_PARM_DESC(bufsiz, "data bytes in biggest supported SPI message"); /*-------------------------------------------------------------------------*/ +/* + * We can't use the standard synchronous wrappers for file I/O; we + * need to protect against async removal of the underlying spi_device. + */ +static void spidev_complete(void *arg) +{ + complete(arg); +} + +static ssize_t +spidev_sync(struct spidev_data *spidev, struct spi_message *message) +{ + DECLARE_COMPLETION_ONSTACK(done); + int status; + + message->complete = spidev_complete; + message->context = &done; + + spin_lock_irq(&spidev->spi_lock); + if (spidev->spi == NULL) + status = -ESHUTDOWN; + else + status = spi_async(spidev->spi, message); + spin_unlock_irq(&spidev->spi_lock); + + if (status == 0) { + wait_for_completion(&done); + status = message->status; + if (status == 0) + status = message->actual_length; + } + return status; +} + +static inline ssize_t +spidev_sync_write(struct spidev_data *spidev, size_t len) +{ + struct spi_transfer t = { + .tx_buf = spidev->buffer, + .len = len, + }; + struct spi_message m; + + spi_message_init(&m); + spi_message_add_tail(&t, &m); + return spidev_sync(spidev, &m); +} + +static inline ssize_t +spidev_sync_read(struct spidev_data *spidev, size_t len) +{ + struct spi_transfer t = { + .rx_buf = spidev->buffer, + .len = len, + }; + struct spi_message m; + + spi_message_init(&m); + spi_message_add_tail(&t, &m); + return spidev_sync(spidev, &m); +} + +/*-------------------------------------------------------------------------*/ + /* Read-only message with current device setup */ static ssize_t spidev_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos) { struct spidev_data *spidev; - struct spi_device *spi; ssize_t status = 0; /* chipselect only toggles at start or end of operation */ @@ -98,10 +162,9 @@ spidev_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos) return -EMSGSIZE; spidev = filp->private_data; - spi = spidev->spi; mutex_lock(&spidev->buf_lock); - status = spi_read(spi, spidev->buffer, count); + status = spidev_sync_read(spidev, count); if (status == 0) { unsigned long missing; @@ -122,7 +185,6 @@ spidev_write(struct file *filp, const char __user *buf, size_t count, loff_t *f_pos) { struct spidev_data *spidev; - struct spi_device *spi; ssize_t status = 0; unsigned long missing; @@ -131,12 +193,11 @@ spidev_write(struct file *filp, const char __user *buf, return -EMSGSIZE; spidev = filp->private_data; - spi = spidev->spi; mutex_lock(&spidev->buf_lock); missing = copy_from_user(spidev->buffer, buf, count); if (missing == 0) { - status = spi_write(spi, spidev->buffer, count); + status = spidev_sync_write(spidev, count); if (status == 0) status = count; } else @@ -153,7 +214,6 @@ static int spidev_message(struct spidev_data *spidev, struct spi_transfer *k_xfers; struct spi_transfer *k_tmp; struct spi_ioc_transfer *u_tmp; - struct spi_device *spi = spidev->spi; unsigned n, total; u8 *buf; int status = -EFAULT; @@ -215,7 +275,7 @@ static int spidev_message(struct spidev_data *spidev, spi_message_add_tail(k_tmp, &msg); } - status = spi_sync(spi, &msg); + status = spidev_sync(spidev, &msg); if (status < 0) goto done; @@ -269,8 +329,16 @@ spidev_ioctl(struct inode *inode, struct file *filp, if (err) return -EFAULT; + /* guard against device removal before, or while, + * we issue this ioctl. + */ spidev = filp->private_data; - spi = spidev->spi; + spin_lock_irq(&spidev->spi_lock); + spi = spi_dev_get(spidev->spi); + spin_unlock_irq(&spidev->spi_lock); + + if (spi == NULL) + return -ESHUTDOWN; switch (cmd) { /* read requests */ @@ -356,8 +424,10 @@ spidev_ioctl(struct inode *inode, struct file *filp, default: /* segmented and/or full-duplex I/O request */ if (_IOC_NR(cmd) != _IOC_NR(SPI_IOC_MESSAGE(0)) - || _IOC_DIR(cmd) != _IOC_WRITE) - return -ENOTTY; + || _IOC_DIR(cmd) != _IOC_WRITE) { + retval = -ENOTTY; + break; + } tmp = _IOC_SIZE(cmd); if ((tmp % sizeof(struct spi_ioc_transfer)) != 0) { @@ -385,6 +455,7 @@ spidev_ioctl(struct inode *inode, struct file *filp, kfree(ioc); break; } + spi_dev_put(spi); return retval; } @@ -488,6 +559,7 @@ static int spidev_probe(struct spi_device *spi) /* Initialize the driver data */ spidev->spi = spi; + spin_lock_init(&spidev->spi_lock); mutex_init(&spidev->buf_lock); INIT_LIST_HEAD(&spidev->device_entry); @@ -526,13 +598,17 @@ static int spidev_remove(struct spi_device *spi) { struct spidev_data *spidev = dev_get_drvdata(&spi->dev); - mutex_lock(&device_list_lock); + /* make sure ops on existing fds can abort cleanly */ + spin_lock_irq(&spidev->spi_lock); + spidev->spi = NULL; + spin_unlock_irq(&spidev->spi_lock); + /* prevent new opens */ + mutex_lock(&device_list_lock); list_del(&spidev->device_entry); dev_set_drvdata(&spi->dev, NULL); clear_bit(MINOR(spidev->dev.devt), minors); device_unregister(&spidev->dev); - mutex_unlock(&device_list_lock); return 0; diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c index e4bcf5376a99..bd4ac0bafecb 100644 --- a/drivers/video/aty/atyfb_base.c +++ b/drivers/video/aty/atyfb_base.c @@ -3356,7 +3356,7 @@ static int __devinit atyfb_setup_generic(struct pci_dev *pdev, struct fb_info *i info->fix.mmio_start = raddr; par->ati_regbase = ioremap(info->fix.mmio_start, 0x1000); - if (par->ati_regbase == 0) + if (par->ati_regbase == NULL) return -ENOMEM; info->fix.mmio_start += par->aux_start ? 0x400 : 0xc00; diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c index 72cd0d2f14ec..400e9264e456 100644 --- a/drivers/video/aty/radeon_base.c +++ b/drivers/video/aty/radeon_base.c @@ -2277,8 +2277,8 @@ static int __devinit radeonfb_pci_register (struct pci_dev *pdev, do { rinfo->fb_base = ioremap (rinfo->fb_base_phys, rinfo->mapped_vram); - } while ( rinfo->fb_base == 0 && - ((rinfo->mapped_vram /=2) >= MIN_MAPPED_VRAM) ); + } while (rinfo->fb_base == NULL && + ((rinfo->mapped_vram /= 2) >= MIN_MAPPED_VRAM)); if (rinfo->fb_base == NULL) { printk (KERN_ERR "radeonfb (%s): cannot map FB\n", diff --git a/drivers/video/matrox/matroxfb_base.h b/drivers/video/matrox/matroxfb_base.h index f3107ad7e545..95883236c0cd 100644 --- a/drivers/video/matrox/matroxfb_base.h +++ b/drivers/video/matrox/matroxfb_base.h @@ -200,7 +200,7 @@ static inline int mga_ioremap(unsigned long phys, unsigned long size, int flags, virt->vaddr = ioremap_nocache(phys, size); else virt->vaddr = ioremap(phys, size); - return (virt->vaddr == 0); /* 0, !0... 0, error_code in future */ + return (virt->vaddr == NULL); /* 0, !0... 0, error_code in future */ } static inline void mga_iounmap(vaddr_t va) { diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index 3ee314beacc1..274bc93ab7d8 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -1351,7 +1351,6 @@ static struct pxafb_info * __init pxafb_init_fbinfo(struct device *dev) struct pxafb_info *fbi; void *addr; struct pxafb_mach_info *inf = dev->platform_data; - struct pxafb_mode_info *mode = inf->modes; /* Alloc the pxafb_info and pseudo_palette in one step */ fbi = kmalloc(sizeof(struct pxafb_info) + sizeof(u32) * 16, GFP_KERNEL); diff --git a/drivers/video/s3c2410fb.c b/drivers/video/s3c2410fb.c index 13b38cbbe4cf..f0598961c6b0 100644 --- a/drivers/video/s3c2410fb.c +++ b/drivers/video/s3c2410fb.c @@ -1,75 +1,15 @@ -/* - * linux/drivers/video/s3c2410fb.c - * Copyright (c) Arnaud Patard, Ben Dooks +/* linux/drivers/video/s3c2410fb.c + * Copyright (c) 2004,2005 Arnaud Patard + * Copyright (c) 2004-2008 Ben Dooks + * + * S3C2410 LCD Framebuffer Driver * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive for * more details. * - * S3C2410 LCD Controller Frame Buffer Driver - * based on skeletonfb.c, sa1100fb.c and others - * - * ChangeLog - * 2005-04-07: Arnaud Patard <arnaud.patard@rtp-net.org> - * - u32 state -> pm_message_t state - * - S3C2410_{VA,SZ}_LCD -> S3C24XX - * - * 2005-03-15: Arnaud Patard <arnaud.patard@rtp-net.org> - * - Removed the ioctl - * - use readl/writel instead of __raw_writel/__raw_readl - * - * 2004-12-04: Arnaud Patard <arnaud.patard@rtp-net.org> - * - Added the possibility to set on or off the - * debugging messages - * - Replaced 0 and 1 by on or off when reading the - * /sys files - * - * 2005-03-23: Ben Dooks <ben-linux@fluff.org> - * - added non 16bpp modes - * - updated platform information for range of x/y/bpp - * - add code to ensure palette is written correctly - * - add pixel clock divisor control - * - * 2004-11-11: Arnaud Patard <arnaud.patard@rtp-net.org> - * - Removed the use of currcon as it no more exists - * - Added LCD power sysfs interface - * - * 2004-11-03: Ben Dooks <ben-linux@fluff.org> - * - minor cleanups - * - add suspend/resume support - * - s3c2410fb_setcolreg() not valid in >8bpp modes - * - removed last CONFIG_FB_S3C2410_FIXED - * - ensure lcd controller stopped before cleanup - * - added sysfs interface for backlight power - * - added mask for gpio configuration - * - ensured IRQs disabled during GPIO configuration - * - disable TPAL before enabling video - * - * 2004-09-20: Arnaud Patard <arnaud.patard@rtp-net.org> - * - Suppress command line options - * - * 2004-09-15: Arnaud Patard <arnaud.patard@rtp-net.org> - * - code cleanup - * - * 2004-09-07: Arnaud Patard <arnaud.patard@rtp-net.org> - * - Renamed from h1940fb.c to s3c2410fb.c - * - Add support for different devices - * - Backlight support - * - * 2004-09-05: Herbert Pötzl <herbert@13thfloor.at> - * - added clock (de-)allocation code - * - added fixem fbmem option - * - * 2004-07-27: Arnaud Patard <arnaud.patard@rtp-net.org> - * - code cleanup - * - added a forgotten return in h1940fb_init - * - * 2004-07-19: Herbert Pötzl <herbert@13thfloor.at> - * - code cleanup and extended debugging - * - * 2004-07-15: Arnaud Patard <arnaud.patard@rtp-net.org> - * - First version - */ + * Driver based on skeletonfb.c, sa1100fb.c and others. +*/ #include <linux/module.h> #include <linux/kernel.h> @@ -580,6 +520,27 @@ static int s3c2410fb_setcolreg(unsigned regno, return 0; } +/* s3c2410fb_lcd_enable + * + * shutdown the lcd controller + */ +static void s3c2410fb_lcd_enable(struct s3c2410fb_info *fbi, int enable) +{ + unsigned long flags; + + local_irq_save(flags); + + if (enable) + fbi->regs.lcdcon1 |= S3C2410_LCDCON1_ENVID; + else + fbi->regs.lcdcon1 &= ~S3C2410_LCDCON1_ENVID; + + writel(fbi->regs.lcdcon1, fbi->io + S3C2410_LCDCON1); + + local_irq_restore(flags); +} + + /* * s3c2410fb_blank * @blank_mode: the blank mode we want. @@ -589,9 +550,6 @@ static int s3c2410fb_setcolreg(unsigned regno, * blanking succeeded, != 0 if un-/blanking failed due to e.g. a * video mode which doesn't support it. Implements VESA suspend * and powerdown modes on hardware that supports disabling hsync/vsync: - * blank_mode == 2: suspend vsync - * blank_mode == 3: suspend hsync - * blank_mode == 4: powerdown * * Returns negative errno on error, or zero on success. * @@ -605,6 +563,12 @@ static int s3c2410fb_blank(int blank_mode, struct fb_info *info) tpal_reg += is_s3c2412(fbi) ? S3C2412_TPAL : S3C2410_TPAL; + if (blank_mode == FB_BLANK_POWERDOWN) { + s3c2410fb_lcd_enable(fbi, 0); + } else { + s3c2410fb_lcd_enable(fbi, 1); + } + if (blank_mode == FB_BLANK_UNBLANK) writel(0x0, tpal_reg); else { @@ -948,7 +912,10 @@ static int __init s3c24xxfb_probe(struct platform_device *pdev, } /* create device files */ - device_create_file(&pdev->dev, &dev_attr_debug); + ret = device_create_file(&pdev->dev, &dev_attr_debug); + if (ret) { + printk(KERN_ERR "failed to add debug attribute\n"); + } printk(KERN_INFO "fb%d: %s frame buffer device\n", fbinfo->node, fbinfo->fix.id); @@ -983,21 +950,6 @@ static int __init s3c2412fb_probe(struct platform_device *pdev) return s3c24xxfb_probe(pdev, DRV_S3C2412); } -/* s3c2410fb_stop_lcd - * - * shutdown the lcd controller - */ -static void s3c2410fb_stop_lcd(struct s3c2410fb_info *fbi) -{ - unsigned long flags; - - local_irq_save(flags); - - fbi->regs.lcdcon1 &= ~S3C2410_LCDCON1_ENVID; - writel(fbi->regs.lcdcon1, fbi->io + S3C2410_LCDCON1); - - local_irq_restore(flags); -} /* * Cleanup @@ -1010,7 +962,7 @@ static int s3c2410fb_remove(struct platform_device *pdev) unregister_framebuffer(fbinfo); - s3c2410fb_stop_lcd(info); + s3c2410fb_lcd_enable(info, 0); msleep(1); s3c2410fb_unmap_video_memory(fbinfo); @@ -1043,7 +995,7 @@ static int s3c2410fb_suspend(struct platform_device *dev, pm_message_t state) struct fb_info *fbinfo = platform_get_drvdata(dev); struct s3c2410fb_info *info = fbinfo->par; - s3c2410fb_stop_lcd(info); + s3c2410fb_lcd_enable(info, 0); /* sleep before disabling the clock, we need to ensure * the LCD DMA engine is not going to get back on the bus @@ -1118,3 +1070,5 @@ MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>, " "Ben Dooks <ben-linux@fluff.org>"); MODULE_DESCRIPTION("Framebuffer driver for the s3c2410"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:s3c2410-lcd"); +MODULE_ALIAS("platform:s3c2412-lcd"); diff --git a/drivers/video/s3c2410fb.h b/drivers/video/s3c2410fb.h index dbb73b95e2ef..9a6ba3e9d1b8 100644 --- a/drivers/video/s3c2410fb.h +++ b/drivers/video/s3c2410fb.h @@ -1,26 +1,14 @@ /* * linux/drivers/video/s3c2410fb.h - * Copyright (c) Arnaud Patard + * Copyright (c) 2004 Arnaud Patard + * + * S3C2410 LCD Framebuffer Driver * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive for * more details. * - * S3C2410 LCD Controller Frame Buffer Driver - * based on skeletonfb.c, sa1100fb.h - * - * ChangeLog - * - * 2004-12-04: Arnaud Patard <arnaud.patard@rtp-net.org> - * - Moved dprintk to s3c2410fb.c - * - * 2004-09-07: Arnaud Patard <arnaud.patard@rtp-net.org> - * - Renamed from h1940fb.h to s3c2410fb.h - * - Changed h1940 to s3c2410 - * - * 2004-07-15: Arnaud Patard <arnaud.patard@rtp-net.org> - * - First version - */ +*/ #ifndef __S3C2410FB_H #define __S3C2410FB_H diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c index 73803624c131..b9343844cd1f 100644 --- a/drivers/video/sis/sis_main.c +++ b/drivers/video/sis/sis_main.c @@ -5787,7 +5787,7 @@ sisfb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } else { struct sis_video_info *countvideo = card_list; ivideo->cardnumber = 1; - while((countvideo = countvideo->next) != 0) + while((countvideo = countvideo->next) != NULL) ivideo->cardnumber++; } diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c index 742b5c656d66..15d4a768b1f6 100644 --- a/drivers/video/sm501fb.c +++ b/drivers/video/sm501fb.c @@ -663,14 +663,14 @@ static void sm501fb_panel_power(struct sm501fb_info *fbi, int to) sm501fb_sync_regs(fbi); mdelay(10); - if (pd->flags & SM501FB_FLAG_PANEL_USE_VBIASEN) { + if (!(pd->flags & SM501FB_FLAG_PANEL_NO_VBIASEN)) { control |= SM501_DC_PANEL_CONTROL_BIAS; /* VBIASEN */ writel(control, ctrl_reg); sm501fb_sync_regs(fbi); mdelay(10); } - if (pd->flags & SM501FB_FLAG_PANEL_USE_FPEN) { + if (!(pd->flags & SM501FB_FLAG_PANEL_NO_FPEN)) { control |= SM501_DC_PANEL_CONTROL_FPEN; writel(control, ctrl_reg); sm501fb_sync_regs(fbi); @@ -678,14 +678,14 @@ static void sm501fb_panel_power(struct sm501fb_info *fbi, int to) } } else if (!to && (control & SM501_DC_PANEL_CONTROL_VDD) != 0) { /* disable panel power */ - if (pd->flags & SM501FB_FLAG_PANEL_USE_FPEN) { + if (!(pd->flags & SM501FB_FLAG_PANEL_NO_FPEN)) { control &= ~SM501_DC_PANEL_CONTROL_FPEN; writel(control, ctrl_reg); sm501fb_sync_regs(fbi); mdelay(10); } - if (pd->flags & SM501FB_FLAG_PANEL_USE_VBIASEN) { + if (!(pd->flags & SM501FB_FLAG_PANEL_NO_VBIASEN)) { control &= ~SM501_DC_PANEL_CONTROL_BIAS; writel(control, ctrl_reg); sm501fb_sync_regs(fbi); diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c index cd62d75b2cc0..e2832bc7869a 100644 --- a/fs/ecryptfs/crypto.c +++ b/fs/ecryptfs/crypto.c @@ -1906,9 +1906,9 @@ int ecryptfs_get_tfm_and_mutex_for_cipher_name(struct crypto_blkcipher **tfm, goto out; } } - mutex_unlock(&key_tfm_list_mutex); (*tfm) = key_tfm->key_tfm; (*tfm_mutex) = &key_tfm->key_tfm_mutex; out: + mutex_unlock(&key_tfm_list_mutex); return rc; } diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index fb77e0962132..43e99513334a 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -488,7 +488,12 @@ static struct fuse_conn *new_conn(struct super_block *sb) err = bdi_init(&fc->bdi); if (err) goto error_kfree; - err = bdi_register_dev(&fc->bdi, fc->dev); + if (sb->s_bdev) { + err = bdi_register(&fc->bdi, NULL, "%u:%u-fuseblk", + MAJOR(fc->dev), MINOR(fc->dev)); + } else { + err = bdi_register_dev(&fc->bdi, fc->dev); + } if (err) goto error_bdi_destroy; /* diff --git a/fs/ntfs/upcase.c b/fs/ntfs/upcase.c index 9101807dc81a..e2f72ca98037 100644 --- a/fs/ntfs/upcase.c +++ b/fs/ntfs/upcase.c @@ -77,11 +77,10 @@ ntfschar *generate_default_upcase(void) uc[i] = cpu_to_le16(i); for (r = 0; uc_run_table[r][0]; r++) for (i = uc_run_table[r][0]; i < uc_run_table[r][1]; i++) - uc[i] = cpu_to_le16(le16_to_cpu(uc[i]) + - uc_run_table[r][2]); + le16_add_cpu(&uc[i], uc_run_table[r][2]); for (r = 0; uc_dup_table[r][0]; r++) for (i = uc_dup_table[r][0]; i < uc_dup_table[r][1]; i += 2) - uc[i + 1] = cpu_to_le16(le16_to_cpu(uc[i + 1]) - 1); + le16_add_cpu(&uc[i + 1], -1); for (r = 0; uc_word_table[r][0]; r++) uc[uc_word_table[r][0]] = cpu_to_le16(uc_word_table[r][1]); return uc; diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 6f4e8dc97da1..b08d10017911 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -425,7 +425,8 @@ struct inode *proc_get_inode(struct super_block *sb, unsigned int ino, } } unlock_new_inode(inode); - } + } else + module_put(de->owner); return inode; out_ino: diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index 74a323d2b850..32dc14cd8900 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -139,7 +139,7 @@ static int meminfo_read_proc(char *page, char **start, off_t off, #define K(x) ((x) << (PAGE_SHIFT - 10)) si_meminfo(&i); si_swapinfo(&i); - committed = atomic_read(&vm_committed_space); + committed = atomic_long_read(&vm_committed_space); allowed = ((totalram_pages - hugetlb_total_pages()) * sysctl_overcommit_ratio / 100) + total_swap_pages; diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c index 5105015a75ad..98e0e86093b4 100644 --- a/fs/xfs/linux-2.6/xfs_buf.c +++ b/fs/xfs/linux-2.6/xfs_buf.c @@ -387,6 +387,8 @@ _xfs_buf_lookup_pages( if (unlikely(page == NULL)) { if (flags & XBF_READ_AHEAD) { bp->b_page_count = i; + for (i = 0; i < bp->b_page_count; i++) + unlock_page(bp->b_pages[i]); return -ENOMEM; } @@ -416,17 +418,24 @@ _xfs_buf_lookup_pages( ASSERT(!PagePrivate(page)); if (!PageUptodate(page)) { page_count--; - if (blocksize < PAGE_CACHE_SIZE && !PagePrivate(page)) { + if (blocksize >= PAGE_CACHE_SIZE) { + if (flags & XBF_READ) + bp->b_flags |= _XBF_PAGE_LOCKED; + } else if (!PagePrivate(page)) { if (test_page_region(page, offset, nbytes)) page_count++; } } - unlock_page(page); bp->b_pages[i] = page; offset = 0; } + if (!(bp->b_flags & _XBF_PAGE_LOCKED)) { + for (i = 0; i < bp->b_page_count; i++) + unlock_page(bp->b_pages[i]); + } + if (page_count == bp->b_page_count) bp->b_flags |= XBF_DONE; @@ -746,6 +755,7 @@ xfs_buf_associate_memory( bp->b_count_desired = len; bp->b_buffer_length = buflen; bp->b_flags |= XBF_MAPPED; + bp->b_flags &= ~_XBF_PAGE_LOCKED; return 0; } @@ -1093,8 +1103,10 @@ _xfs_buf_ioend( xfs_buf_t *bp, int schedule) { - if (atomic_dec_and_test(&bp->b_io_remaining) == 1) + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { + bp->b_flags &= ~_XBF_PAGE_LOCKED; xfs_buf_ioend(bp, schedule); + } } STATIC void @@ -1125,6 +1137,9 @@ xfs_buf_bio_end_io( if (--bvec >= bio->bi_io_vec) prefetchw(&bvec->bv_page->flags); + + if (bp->b_flags & _XBF_PAGE_LOCKED) + unlock_page(page); } while (bvec >= bio->bi_io_vec); _xfs_buf_ioend(bp, 1); @@ -1163,7 +1178,8 @@ _xfs_buf_ioapply( * filesystem block size is not smaller than the page size. */ if ((bp->b_buffer_length < PAGE_CACHE_SIZE) && - (bp->b_flags & XBF_READ) && + ((bp->b_flags & (XBF_READ|_XBF_PAGE_LOCKED)) == + (XBF_READ|_XBF_PAGE_LOCKED)) && (blocksize >= PAGE_CACHE_SIZE)) { bio = bio_alloc(GFP_NOIO, 1); diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h index 841d7883528d..f948ec7ba9a4 100644 --- a/fs/xfs/linux-2.6/xfs_buf.h +++ b/fs/xfs/linux-2.6/xfs_buf.h @@ -66,6 +66,25 @@ typedef enum { _XBF_PAGES = (1 << 18), /* backed by refcounted pages */ _XBF_RUN_QUEUES = (1 << 19),/* run block device task queue */ _XBF_DELWRI_Q = (1 << 21), /* buffer on delwri queue */ + + /* + * Special flag for supporting metadata blocks smaller than a FSB. + * + * In this case we can have multiple xfs_buf_t on a single page and + * need to lock out concurrent xfs_buf_t readers as they only + * serialise access to the buffer. + * + * If the FSB size >= PAGE_CACHE_SIZE case, we have no serialisation + * between reads of the page. Hence we can have one thread read the + * page and modify it, but then race with another thread that thinks + * the page is not up-to-date and hence reads it again. + * + * The result is that the first modifcation to the page is lost. + * This sort of AGF/AGI reading race can happen when unlinking inodes + * that require truncation and results in the AGI unlinked list + * modifications being lost. + */ + _XBF_PAGE_LOCKED = (1 << 22), } xfs_buf_flags_t; typedef enum { diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c index 65e78c13d4ae..5f60363b9343 100644 --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c @@ -184,19 +184,24 @@ xfs_file_release( return -xfs_release(XFS_I(inode)); } +/* + * We ignore the datasync flag here because a datasync is effectively + * identical to an fsync. That is, datasync implies that we need to write + * only the metadata needed to be able to access the data that is written + * if we crash after the call completes. Hence if we are writing beyond + * EOF we have to log the inode size change as well, which makes it a + * full fsync. If we don't write beyond EOF, the inode core will be + * clean in memory and so we don't need to log the inode, just like + * fsync. + */ STATIC int xfs_file_fsync( struct file *filp, struct dentry *dentry, int datasync) { - int flags = FSYNC_WAIT; - - if (datasync) - flags |= FSYNC_DATA; xfs_iflags_clear(XFS_I(dentry->d_inode), XFS_ITRUNCATED); - return -xfs_fsync(XFS_I(dentry->d_inode), flags, - (xfs_off_t)0, (xfs_off_t)-1); + return -xfs_fsync(XFS_I(dentry->d_inode)); } /* diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h index 9d73cb5c0fc7..25eb2a9e8d9b 100644 --- a/fs/xfs/linux-2.6/xfs_vnode.h +++ b/fs/xfs/linux-2.6/xfs_vnode.h @@ -230,14 +230,6 @@ static inline void vn_atime_to_time_t(bhv_vnode_t *vp, time_t *tt) #define ATTR_NOSIZETOK 0x400 /* Don't get the SIZE token */ /* - * Flags to vop_fsync/reclaim. - */ -#define FSYNC_NOWAIT 0 /* asynchronous flush */ -#define FSYNC_WAIT 0x1 /* synchronous fsync or forced reclaim */ -#define FSYNC_INVAL 0x2 /* flush and invalidate cached data */ -#define FSYNC_DATA 0x4 /* synchronous fsync of data only */ - -/* * Tracking vnode activity. */ #if defined(XFS_INODE_TRACE) diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index cf0bb9c1d621..e569bf5d6cf0 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -2974,6 +2974,7 @@ xfs_iflush_cluster( xfs_mount_t *mp = ip->i_mount; xfs_perag_t *pag = xfs_get_perag(mp, ip->i_ino); unsigned long first_index, mask; + unsigned long inodes_per_cluster; int ilist_size; xfs_inode_t **ilist; xfs_inode_t *iq; @@ -2985,8 +2986,9 @@ xfs_iflush_cluster( ASSERT(pag->pagi_inodeok); ASSERT(pag->pag_ici_init); - ilist_size = XFS_INODE_CLUSTER_SIZE(mp) * sizeof(xfs_inode_t *); - ilist = kmem_alloc(ilist_size, KM_MAYFAIL); + inodes_per_cluster = XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog; + ilist_size = inodes_per_cluster * sizeof(xfs_inode_t *); + ilist = kmem_alloc(ilist_size, KM_MAYFAIL|KM_NOFS); if (!ilist) return 0; @@ -2995,8 +2997,7 @@ xfs_iflush_cluster( read_lock(&pag->pag_ici_lock); /* really need a gang lookup range call here */ nr_found = radix_tree_gang_lookup(&pag->pag_ici_root, (void**)ilist, - first_index, - XFS_INODE_CLUSTER_SIZE(mp)); + first_index, inodes_per_cluster); if (nr_found == 0) goto out_free; diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index 70702a60b4bb..e475e3717eb3 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -856,18 +856,14 @@ xfs_readlink( /* * xfs_fsync * - * This is called to sync the inode and its data out to disk. - * We need to hold the I/O lock while flushing the data, and - * the inode lock while flushing the inode. The inode lock CANNOT - * be held while flushing the data, so acquire after we're done - * with that. + * This is called to sync the inode and its data out to disk. We need to hold + * the I/O lock while flushing the data, and the inode lock while flushing the + * inode. The inode lock CANNOT be held while flushing the data, so acquire + * after we're done with that. */ int xfs_fsync( - xfs_inode_t *ip, - int flag, - xfs_off_t start, - xfs_off_t stop) + xfs_inode_t *ip) { xfs_trans_t *tp; int error; @@ -875,103 +871,79 @@ xfs_fsync( xfs_itrace_entry(ip); - ASSERT(start >= 0 && stop >= -1); - if (XFS_FORCED_SHUTDOWN(ip->i_mount)) return XFS_ERROR(EIO); - if (flag & FSYNC_DATA) - filemap_fdatawait(vn_to_inode(XFS_ITOV(ip))->i_mapping); + /* capture size updates in I/O completion before writing the inode. */ + error = filemap_fdatawait(vn_to_inode(XFS_ITOV(ip))->i_mapping); + if (error) + return XFS_ERROR(error); /* - * We always need to make sure that the required inode state - * is safe on disk. The vnode might be clean but because - * of committed transactions that haven't hit the disk yet. - * Likewise, there could be unflushed non-transactional - * changes to the inode core that have to go to disk. + * We always need to make sure that the required inode state is safe on + * disk. The vnode might be clean but we still might need to force the + * log because of committed transactions that haven't hit the disk yet. + * Likewise, there could be unflushed non-transactional changes to the + * inode core that have to go to disk and this requires us to issue + * a synchronous transaction to capture these changes correctly. * - * The following code depends on one assumption: that - * any transaction that changes an inode logs the core - * because it has to change some field in the inode core - * (typically nextents or nblocks). That assumption - * implies that any transactions against an inode will - * catch any non-transactional updates. If inode-altering - * transactions exist that violate this assumption, the - * code breaks. Right now, it figures that if the involved - * update_* field is clear and the inode is unpinned, the - * inode is clean. Either it's been flushed or it's been - * committed and the commit has hit the disk unpinning the inode. - * (Note that xfs_inode_item_format() called at commit clears - * the update_* fields.) + * This code relies on the assumption that if the update_* fields + * of the inode are clear and the inode is unpinned then it is clean + * and no action is required. */ xfs_ilock(ip, XFS_ILOCK_SHARED); - /* If we are flushing data then we care about update_size - * being set, otherwise we care about update_core - */ - if ((flag & FSYNC_DATA) ? - (ip->i_update_size == 0) : - (ip->i_update_core == 0)) { + if (!(ip->i_update_size || ip->i_update_core)) { /* - * Timestamps/size haven't changed since last inode - * flush or inode transaction commit. That means - * either nothing got written or a transaction - * committed which caught the updates. If the - * latter happened and the transaction hasn't - * hit the disk yet, the inode will be still - * be pinned. If it is, force the log. + * Timestamps/size haven't changed since last inode flush or + * inode transaction commit. That means either nothing got + * written or a transaction committed which caught the updates. + * If the latter happened and the transaction hasn't hit the + * disk yet, the inode will be still be pinned. If it is, + * force the log. */ xfs_iunlock(ip, XFS_ILOCK_SHARED); if (xfs_ipincount(ip)) { - _xfs_log_force(ip->i_mount, (xfs_lsn_t)0, - XFS_LOG_FORCE | - ((flag & FSYNC_WAIT) - ? XFS_LOG_SYNC : 0), + error = _xfs_log_force(ip->i_mount, (xfs_lsn_t)0, + XFS_LOG_FORCE | XFS_LOG_SYNC, &log_flushed); } else { /* - * If the inode is not pinned and nothing - * has changed we don't need to flush the - * cache. + * If the inode is not pinned and nothing has changed + * we don't need to flush the cache. */ changed = 0; } - error = 0; } else { /* - * Kick off a transaction to log the inode - * core to get the updates. Make it - * sync if FSYNC_WAIT is passed in (which - * is done by everybody but specfs). The - * sync transaction will also force the log. + * Kick off a transaction to log the inode core to get the + * updates. The sync transaction will also force the log. */ xfs_iunlock(ip, XFS_ILOCK_SHARED); tp = xfs_trans_alloc(ip->i_mount, XFS_TRANS_FSYNC_TS); - if ((error = xfs_trans_reserve(tp, 0, - XFS_FSYNC_TS_LOG_RES(ip->i_mount), - 0, 0, 0))) { + error = xfs_trans_reserve(tp, 0, + XFS_FSYNC_TS_LOG_RES(ip->i_mount), 0, 0, 0); + if (error) { xfs_trans_cancel(tp, 0); return error; } xfs_ilock(ip, XFS_ILOCK_EXCL); /* - * Note - it's possible that we might have pushed - * ourselves out of the way during trans_reserve - * which would flush the inode. But there's no - * guarantee that the inode buffer has actually - * gone out yet (it's delwri). Plus the buffer - * could be pinned anyway if it's part of an - * inode in another recent transaction. So we - * play it safe and fire off the transaction anyway. + * Note - it's possible that we might have pushed ourselves out + * of the way during trans_reserve which would flush the inode. + * But there's no guarantee that the inode buffer has actually + * gone out yet (it's delwri). Plus the buffer could be pinned + * anyway if it's part of an inode in another recent + * transaction. So we play it safe and fire off the + * transaction anyway. */ xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); xfs_trans_ihold(tp, ip); xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); - if (flag & FSYNC_WAIT) - xfs_trans_set_sync(tp); + xfs_trans_set_sync(tp); error = _xfs_trans_commit(tp, 0, &log_flushed); xfs_iunlock(ip, XFS_ILOCK_EXCL); diff --git a/fs/xfs/xfs_vnodeops.h b/fs/xfs/xfs_vnodeops.h index 8abe8f186e20..57335ba4ce53 100644 --- a/fs/xfs/xfs_vnodeops.h +++ b/fs/xfs/xfs_vnodeops.h @@ -18,8 +18,7 @@ int xfs_open(struct xfs_inode *ip); int xfs_setattr(struct xfs_inode *ip, struct bhv_vattr *vap, int flags, struct cred *credp); int xfs_readlink(struct xfs_inode *ip, char *link); -int xfs_fsync(struct xfs_inode *ip, int flag, xfs_off_t start, - xfs_off_t stop); +int xfs_fsync(struct xfs_inode *ip); int xfs_release(struct xfs_inode *ip); int xfs_inactive(struct xfs_inode *ip); int xfs_lookup(struct xfs_inode *dp, struct xfs_name *name, diff --git a/include/asm-arm/arch-omap/board-palmte.h b/include/asm-arm/arch-omap/board-palmte.h index cd22035a7160..6fac2c8935be 100644 --- a/include/asm-arm/arch-omap/board-palmte.h +++ b/include/asm-arm/arch-omap/board-palmte.h @@ -14,8 +14,6 @@ #ifndef __OMAP_BOARD_PALMTE_H #define __OMAP_BOARD_PALMTE_H -#include <asm/arch/gpio.h> - #define PALMTE_USBDETECT_GPIO 0 #define PALMTE_USB_OR_DC_GPIO 1 #define PALMTE_TSC_GPIO 4 diff --git a/include/asm-arm/arch-omap/clock.h b/include/asm-arm/arch-omap/clock.h index 57523bdb642b..12a5e4de9518 100644 --- a/include/asm-arm/arch-omap/clock.h +++ b/include/asm-arm/arch-omap/clock.h @@ -73,6 +73,8 @@ struct clk { #endif }; +struct cpufreq_frequency_table; + struct clk_functions { int (*clk_enable)(struct clk *clk); void (*clk_disable)(struct clk *clk); @@ -83,6 +85,9 @@ struct clk_functions { void (*clk_allow_idle)(struct clk *clk); void (*clk_deny_idle)(struct clk *clk); void (*clk_disable_unused)(struct clk *clk); +#ifdef CONFIG_CPU_FREQ + void (*clk_init_cpufreq_table)(struct cpufreq_frequency_table **); +#endif }; extern unsigned int mpurate; diff --git a/include/asm-arm/arch-omap/entry-macro.S b/include/asm-arm/arch-omap/entry-macro.S index 74cd57221c8e..369093a45fcf 100644 --- a/include/asm-arm/arch-omap/entry-macro.S +++ b/include/asm-arm/arch-omap/entry-macro.S @@ -8,6 +8,7 @@ * warranty of any kind, whether express or implied. */ #include <asm/hardware.h> +#include <asm/arch/io.h> #include <asm/arch/irqs.h> #if defined(CONFIG_ARCH_OMAP1) diff --git a/include/asm-arm/arch-omap/gpio.h b/include/asm-arm/arch-omap/gpio.h index 86621a04cd8f..5ee6a49864c3 100644 --- a/include/asm-arm/arch-omap/gpio.h +++ b/include/asm-arm/arch-omap/gpio.h @@ -26,7 +26,6 @@ #ifndef __ASM_ARCH_OMAP_GPIO_H #define __ASM_ARCH_OMAP_GPIO_H -#include <asm/hardware.h> #include <asm/arch/irqs.h> #include <asm/io.h> diff --git a/include/asm-arm/arch-omap/hardware.h b/include/asm-arm/arch-omap/hardware.h index da572092e255..91d85b3417b7 100644 --- a/include/asm-arm/arch-omap/hardware.h +++ b/include/asm-arm/arch-omap/hardware.h @@ -41,7 +41,6 @@ #include <asm/types.h> #include <asm/arch/cpu.h> #endif -#include <asm/arch/io.h> #include <asm/arch/serial.h> /* diff --git a/include/asm-arm/arch-sa1100/collie.h b/include/asm-arm/arch-sa1100/collie.h index 14a344aa3cc7..762eba535813 100644 --- a/include/asm-arm/arch-sa1100/collie.h +++ b/include/asm-arm/arch-sa1100/collie.h @@ -34,9 +34,12 @@ #define COLLIE_GPIO_ON_KEY GPIO_GPIO (0) #define COLLIE_GPIO_AC_IN GPIO_GPIO (1) +#define COLLIE_GPIO_SDIO_INT GPIO_GPIO (11) #define COLLIE_GPIO_CF_IRQ GPIO_GPIO (14) #define COLLIE_GPIO_nREMOCON_INT GPIO_GPIO (15) #define COLLIE_GPIO_UCB1x00_RESET GPIO_GPIO (16) +#define COLLIE_GPIO_nMIC_ON GPIO_GPIO (17) +#define COLLIE_GPIO_nREMOCON_ON GPIO_GPIO (18) #define COLLIE_GPIO_CO GPIO_GPIO (20) #define COLLIE_GPIO_MCP_CLK GPIO_GPIO (21) #define COLLIE_GPIO_CF_CD GPIO_GPIO (22) @@ -49,6 +52,7 @@ #define COLLIE_IRQ_GPIO_ON_KEY IRQ_GPIO0 #define COLLIE_IRQ_GPIO_AC_IN IRQ_GPIO1 +#define COLLIE_IRQ_GPIO_SDIO_IRQ IRQ_GPIO11 #define COLLIE_IRQ_GPIO_CF_IRQ IRQ_GPIO14 #define COLLIE_IRQ_GPIO_nREMOCON_INT IRQ_GPIO15 #define COLLIE_IRQ_GPIO_CO IRQ_GPIO20 diff --git a/include/asm-arm/page.h b/include/asm-arm/page.h index 5c22b0112106..8e05bdb5f12f 100644 --- a/include/asm-arm/page.h +++ b/include/asm-arm/page.h @@ -179,10 +179,10 @@ typedef unsigned long pgprot_t; #endif /* STRICT_MM_TYPECHECKS */ -typedef struct page *pgtable_t; - #endif /* CONFIG_MMU */ +typedef struct page *pgtable_t; + #include <asm/memory.h> #endif /* !__ASSEMBLY__ */ diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h index 6335de9a2bb3..514af792a598 100644 --- a/include/asm-arm/system.h +++ b/include/asm-arm/system.h @@ -48,20 +48,6 @@ #define CPUID_TCM 2 #define CPUID_TLBTYPE 3 -#ifdef CONFIG_CPU_CP15 -#define read_cpuid(reg) \ - ({ \ - unsigned int __val; \ - asm("mrc p15, 0, %0, c0, c0, " __stringify(reg) \ - : "=r" (__val) \ - : \ - : "cc"); \ - __val; \ - }) -#else -#define read_cpuid(reg) (processor_id) -#endif - /* * This is used to ensure the compiler did actually allocate the register we * asked it for some inline assembly sequences. Apparently we can't trust @@ -78,6 +64,21 @@ #include <linux/stringify.h> #include <linux/irqflags.h> +#ifdef CONFIG_CPU_CP15 +#define read_cpuid(reg) \ + ({ \ + unsigned int __val; \ + asm("mrc p15, 0, %0, c0, c0, " __stringify(reg) \ + : "=r" (__val) \ + : \ + : "cc"); \ + __val; \ + }) +#else +extern unsigned int processor_id; +#define read_cpuid(reg) (processor_id) +#endif + /* * The CPU ID never changes at run time, so we might as well tell the * compiler that it's constant. Use this function to read the CPU ID diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index ecf675a59d21..6be061d09da9 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -1,8 +1,12 @@ #ifndef _ASM_GENERIC_GPIO_H #define _ASM_GENERIC_GPIO_H +#include <linux/types.h> + #ifdef CONFIG_HAVE_GPIO_LIB +#include <linux/compiler.h> + /* Platforms may implement their GPIO interface with library code, * at a small performance cost for non-inlined operations and some * extra memory (for code and for per-GPIO table entries). @@ -74,7 +78,7 @@ struct gpio_chip { extern const char *gpiochip_is_requested(struct gpio_chip *chip, unsigned offset); -extern int __init __must_check gpiochip_reserve(int start, int ngpio); +extern int __must_check gpiochip_reserve(int start, int ngpio); /* add/remove chips */ extern int gpiochip_add(struct gpio_chip *chip); diff --git a/include/asm-mips/gic.h b/include/asm-mips/gic.h index 01b2f92dc33d..3a492f225f00 100644 --- a/include/asm-mips/gic.h +++ b/include/asm-mips/gic.h @@ -330,7 +330,7 @@ #define GIC_SH_RMASK_OFS 0x0300 #define GIC_CLR_INTR_MASK(intr, val) \ - GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_RMASK_OFS + 4 + (((((intr) / 32) ^ 1) - 1) * 4)), ((val) << ((intr) % 32)) + GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_RMASK_OFS + 4 + (((((intr) / 32) ^ 1) - 1) * 4)), ((val) << ((intr) % 32))) /* Register Map for Local Section */ #define GIC_VPE_CTL_OFS 0x0000 diff --git a/include/asm-mips/mach-au1x00/au1000.h b/include/asm-mips/mach-au1x00/au1000.h index 363a14ee0ae5..1b5064dac007 100644 --- a/include/asm-mips/mach-au1x00/au1000.h +++ b/include/asm-mips/mach-au1x00/au1000.h @@ -1036,7 +1036,7 @@ enum soc_au1200_ints { #define USBD_INTSTAT 0xB020001C # define USBDEV_INT_SOF (1 << 12) # define USBDEV_INT_HF_BIT 6 -# define USBDEV_INT_HF_MASK 0x3f << USBDEV_INT_HF_BIT) +# define USBDEV_INT_HF_MASK (0x3f << USBDEV_INT_HF_BIT) # define USBDEV_INT_CMPLT_BIT 0 # define USBDEV_INT_CMPLT_MASK (0x3f << USBDEV_INT_CMPLT_BIT) #define USBD_CONFIG 0xB0200020 diff --git a/include/asm-powerpc/mpic.h b/include/asm-powerpc/mpic.h index 943c5a3fac8a..a4d0f876b427 100644 --- a/include/asm-powerpc/mpic.h +++ b/include/asm-powerpc/mpic.h @@ -428,12 +428,11 @@ extern void mpic_init(struct mpic *mpic); */ -/* Change/Read the priority of an interrupt. Default is 8 for irqs and +/* Change the priority of an interrupt. Default is 8 for irqs and * 10 for IPIs. You can call this on both IPIs and IRQ numbers, but the * IPI number is then the offset'ed (linux irq number mapped to the IPI) */ extern void mpic_irq_set_priority(unsigned int irq, unsigned int pri); -extern unsigned int mpic_irq_get_priority(unsigned int irq); /* Setup a non-boot CPU */ extern void mpic_setup_this_cpu(void); diff --git a/include/linux/gpio.h b/include/linux/gpio.h index 4987a84078ef..98be6c5762b9 100644 --- a/include/linux/gpio.h +++ b/include/linux/gpio.h @@ -8,6 +8,9 @@ #else +#include <linux/types.h> +#include <linux/errno.h> + /* * Some platforms don't support the GPIO programming interface. * diff --git a/include/linux/mman.h b/include/linux/mman.h index 87920a0852a3..dab8892e6ff1 100644 --- a/include/linux/mman.h +++ b/include/linux/mman.h @@ -17,14 +17,14 @@ extern int sysctl_overcommit_memory; extern int sysctl_overcommit_ratio; -extern atomic_t vm_committed_space; +extern atomic_long_t vm_committed_space; #ifdef CONFIG_SMP extern void vm_acct_memory(long pages); #else static inline void vm_acct_memory(long pages) { - atomic_add(pages, &vm_committed_space); + atomic_long_add(pages, &vm_committed_space); } #endif diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index c463cd8a15a4..443bc7cd8c62 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -703,7 +703,7 @@ extern struct pglist_data *next_online_pgdat(struct pglist_data *pgdat); extern struct zone *next_zone(struct zone *zone); /** - * for_each_pgdat - helper macro to iterate over all nodes + * for_each_online_pgdat - helper macro to iterate over all online nodes * @pgdat - pointer to a pg_data_t variable */ #define for_each_online_pgdat(pgdat) \ diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index cf6dbd759395..9b940e644179 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1761,6 +1761,7 @@ #define PCI_VENDOR_ID_INTASHIELD 0x135a #define PCI_DEVICE_ID_INTASHIELD_IS200 0x0d80 +#define PCI_DEVICE_ID_INTASHIELD_IS400 0x0dc0 #define PCI_VENDOR_ID_QUATECH 0x135C #define PCI_DEVICE_ID_QUATECH_QSC100 0x0010 @@ -2383,6 +2384,9 @@ #define PCI_DEVICE_ID_INTEL_ICH10_4 0x3a30 #define PCI_DEVICE_ID_INTEL_ICH10_5 0x3a60 #define PCI_DEVICE_ID_INTEL_IOAT_SNB 0x402f +#define PCI_DEVICE_ID_INTEL_5400_ERR 0x4030 +#define PCI_DEVICE_ID_INTEL_5400_FBD0 0x4035 +#define PCI_DEVICE_ID_INTEL_5400_FBD1 0x4036 #define PCI_DEVICE_ID_INTEL_IOAT_SCNB 0x65ff #define PCI_DEVICE_ID_INTEL_TOLAPAI_0 0x5031 #define PCI_DEVICE_ID_INTEL_TOLAPAI_1 0x5032 diff --git a/include/linux/raid/bitmap.h b/include/linux/raid/bitmap.h index 47fbcba11850..78bfdea24a8e 100644 --- a/include/linux/raid/bitmap.h +++ b/include/linux/raid/bitmap.h @@ -262,7 +262,6 @@ int bitmap_create(mddev_t *mddev); void bitmap_flush(mddev_t *mddev); void bitmap_destroy(mddev_t *mddev); -char *file_path(struct file *file, char *buf, int count); void bitmap_print_sb(struct bitmap *bitmap); void bitmap_update_sb(struct bitmap *bitmap); diff --git a/include/linux/raid/md.h b/include/linux/raid/md.h index 81a1a02d4566..b7386ae9d288 100644 --- a/include/linux/raid/md.h +++ b/include/linux/raid/md.h @@ -72,6 +72,8 @@ */ #define MD_PATCHLEVEL_VERSION 3 +extern int mdp_major; + extern int register_md_personality (struct mdk_personality *p); extern int unregister_md_personality (struct mdk_personality *p); extern mdk_thread_t * md_register_thread (void (*run) (mddev_t *mddev), diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h index 812ffa590cff..3dea9f545c8f 100644 --- a/include/linux/raid/md_k.h +++ b/include/linux/raid/md_k.h @@ -180,13 +180,15 @@ struct mddev_s int sync_speed_min; int sync_speed_max; + /* resync even though the same disks are shared among md-devices */ + int parallel_resync; + int ok_start_degraded; /* recovery/resync flags * NEEDED: we might need to start a resync/recover * RUNNING: a thread is running, or about to be started * SYNC: actually doing a resync, not a recovery - * ERR: and IO error was detected - abort the resync/recovery - * INTR: someone requested a (clean) early abort. + * INTR: resync needs to be aborted for some reason * DONE: thread is done and is waiting to be reaped * REQUEST: user-space has requested a sync (used with SYNC) * CHECK: user-space request for for check-only, no repair @@ -196,7 +198,6 @@ struct mddev_s */ #define MD_RECOVERY_RUNNING 0 #define MD_RECOVERY_SYNC 1 -#define MD_RECOVERY_ERR 2 #define MD_RECOVERY_INTR 3 #define MD_RECOVERY_DONE 4 #define MD_RECOVERY_NEEDED 5 diff --git a/include/linux/sm501.h b/include/linux/sm501.h index bca134544700..95c1c39ba445 100644 --- a/include/linux/sm501.h +++ b/include/linux/sm501.h @@ -71,8 +71,8 @@ extern unsigned long sm501_gpio_get(struct device *dev, #define SM501FB_FLAG_DISABLE_AT_EXIT (1<<1) #define SM501FB_FLAG_USE_HWCURSOR (1<<2) #define SM501FB_FLAG_USE_HWACCEL (1<<3) -#define SM501FB_FLAG_PANEL_USE_FPEN (1<<4) -#define SM501FB_FLAG_PANEL_USE_VBIASEN (1<<5) +#define SM501FB_FLAG_PANEL_NO_FPEN (1<<4) +#define SM501FB_FLAG_PANEL_NO_VBIASEN (1<<5) struct sm501_platdata_fbsub { struct fb_videomode *def_mode; diff --git a/include/linux/types.h b/include/linux/types.h index 9dc2346627b4..d4a9ce6e2760 100644 --- a/include/linux/types.h +++ b/include/linux/types.h @@ -197,8 +197,6 @@ typedef u64 resource_size_t; typedef u32 resource_size_t; #endif -#endif /* __KERNEL__ */ - struct ustat { __kernel_daddr_t f_tfree; __kernel_ino_t f_tinode; @@ -206,4 +204,6 @@ struct ustat { char f_fpack[6]; }; +#endif /* __KERNEL__ */ + #endif /* _LINUX_TYPES_H */ diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c index 7473b0c59d4d..693d24694a6c 100644 --- a/init/do_mounts_md.c +++ b/init/do_mounts_md.c @@ -24,7 +24,6 @@ static struct { static int md_setup_ents __initdata; -extern int mdp_major; /* * Parse the command-line parameters given our kernel, but do not * actually try to invoke the MD device now; that is handled by diff --git a/kernel/cgroup.c b/kernel/cgroup.c index fbc6fc8949b4..15ac0e1e4f4d 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -2903,7 +2903,7 @@ int cgroup_clone(struct task_struct *tsk, struct cgroup_subsys *subsys) cg = tsk->cgroups; parent = task_cgroup(tsk, subsys->subsys_id); - snprintf(nodename, MAX_CGROUP_TYPE_NAMELEN, "node_%d", tsk->pid); + snprintf(nodename, MAX_CGROUP_TYPE_NAMELEN, "%d", tsk->pid); /* Pin the hierarchy */ atomic_inc(&parent->root->sb->s_active); diff --git a/kernel/exit.c b/kernel/exit.c index 1510f78a0ffa..8f6185e69b69 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -126,6 +126,12 @@ static void __exit_signal(struct task_struct *tsk) __unhash_process(tsk); + /* + * Do this under ->siglock, we can race with another thread + * doing sigqueue_free() if we have SIGQUEUE_PREALLOC signals. + */ + flush_sigqueue(&tsk->pending); + tsk->signal = NULL; tsk->sighand = NULL; spin_unlock(&sighand->siglock); @@ -133,7 +139,6 @@ static void __exit_signal(struct task_struct *tsk) __cleanup_sighand(sighand); clear_tsk_thread_flag(tsk,TIF_SIGPENDING); - flush_sigqueue(&tsk->pending); if (sig) { flush_sigqueue(&sig->shared_pending); taskstats_tgid_free(sig); diff --git a/kernel/module.c b/kernel/module.c index f5e9491ef7ac..5f80478b746d 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1337,7 +1337,19 @@ out_unreg: kobject_put(&mod->mkobj.kobj); return err; } -#endif + +static void mod_sysfs_fini(struct module *mod) +{ + kobject_put(&mod->mkobj.kobj); +} + +#else /* CONFIG_SYSFS */ + +static void mod_sysfs_fini(struct module *mod) +{ +} + +#endif /* CONFIG_SYSFS */ static void mod_kobject_remove(struct module *mod) { @@ -1345,7 +1357,7 @@ static void mod_kobject_remove(struct module *mod) module_param_sysfs_remove(mod); kobject_put(mod->mkobj.drivers_dir); kobject_put(mod->holders_dir); - kobject_put(&mod->mkobj.kobj); + mod_sysfs_fini(mod); } /* @@ -1780,7 +1792,7 @@ static struct module *load_module(void __user *umod, /* Sanity checks against insmoding binaries or wrong arch, weird elf version */ - if (memcmp(hdr->e_ident, ELFMAG, 4) != 0 + if (memcmp(hdr->e_ident, ELFMAG, SELFMAG) != 0 || hdr->e_type != ET_REL || !elf_check_arch(hdr) || hdr->e_shentsize != sizeof(*sechdrs)) { diff --git a/kernel/signal.c b/kernel/signal.c index 72bb4f51f963..12ffea7c201d 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -1242,7 +1242,8 @@ void sigqueue_free(struct sigqueue *q) /* * If the signal is still pending remove it from the * pending queue. We must hold ->siglock while testing - * q->list to serialize with collect_signal(). + * q->list to serialize with collect_signal() or with + * __exit_signal()->flush_sigqueue(). */ spin_lock_irqsave(lock, flags); if (!list_empty(&q->list)) diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c index 0101aeef7ed7..b7350bbfb076 100644 --- a/kernel/stop_machine.c +++ b/kernel/stop_machine.c @@ -62,8 +62,7 @@ static int stopmachine(void *cpu) * help our sisters onto their CPUs. */ if (!prepared && !irqs_disabled) yield(); - else - cpu_relax(); + cpu_relax(); } /* Ack: we are exiting. */ @@ -106,8 +105,10 @@ static int stop_machine(void) } /* Wait for them all to come to life. */ - while (atomic_read(&stopmachine_thread_ack) != stopmachine_num_threads) + while (atomic_read(&stopmachine_thread_ack) != stopmachine_num_threads) { yield(); + cpu_relax(); + } /* If some failed, kill them all. */ if (ret < 0) { diff --git a/kernel/sys.c b/kernel/sys.c index 895d2d4c9493..14e97282eb6c 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -1652,7 +1652,7 @@ asmlinkage long sys_umask(int mask) asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5) { - long uninitialized_var(error); + long error = 0; if (security_task_prctl(option, arg2, arg3, arg4, arg5, &error)) return error; @@ -1701,9 +1701,7 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, error = PR_TIMING_STATISTICAL; break; case PR_SET_TIMING: - if (arg2 == PR_TIMING_STATISTICAL) - error = 0; - else + if (arg2 != PR_TIMING_STATISTICAL) error = -EINVAL; break; diff --git a/mm/memory.c b/mm/memory.c index fb5608a120ed..19e0ae9beecb 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2295,8 +2295,6 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma, vmf.flags = flags; vmf.page = NULL; - BUG_ON(vma->vm_flags & VM_PFNMAP); - ret = vma->vm_ops->fault(vma, &vmf); if (unlikely(ret & (VM_FAULT_ERROR | VM_FAULT_NOPAGE))) return ret; diff --git a/mm/mmap.c b/mm/mmap.c index fac66337da2a..669499e7c2f5 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -80,7 +80,7 @@ EXPORT_SYMBOL(vm_get_page_prot); int sysctl_overcommit_memory = OVERCOMMIT_GUESS; /* heuristic overcommit */ int sysctl_overcommit_ratio = 50; /* default is 50% */ int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT; -atomic_t vm_committed_space = ATOMIC_INIT(0); +atomic_long_t vm_committed_space = ATOMIC_LONG_INIT(0); /* * Check that a process has enough memory to allocate a new virtual @@ -177,7 +177,7 @@ int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin) * cast `allowed' as a signed long because vm_committed_space * sometimes has a negative value */ - if (atomic_read(&vm_committed_space) < (long)allowed) + if (atomic_long_read(&vm_committed_space) < (long)allowed) return 0; error: vm_unacct_memory(pages); diff --git a/mm/nommu.c b/mm/nommu.c index ef8c62cec697..dca93fcb8b7a 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -39,7 +39,7 @@ struct page *mem_map; unsigned long max_mapnr; unsigned long num_physpages; unsigned long askedalloc, realalloc; -atomic_t vm_committed_space = ATOMIC_INIT(0); +atomic_long_t vm_committed_space = ATOMIC_LONG_INIT(0); int sysctl_overcommit_memory = OVERCOMMIT_GUESS; /* heuristic overcommit */ int sysctl_overcommit_ratio = 50; /* default is 50% */ int sysctl_max_map_count = DEFAULT_MAX_MAP_COUNT; @@ -1410,7 +1410,7 @@ int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin) * cast `allowed' as a signed long because vm_committed_space * sometimes has a negative value */ - if (atomic_read(&vm_committed_space) < (long)allowed) + if (atomic_long_read(&vm_committed_space) < (long)allowed) return 0; error: vm_unacct_memory(pages); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 63835579323a..8e83f02cd2d3 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1396,6 +1396,9 @@ get_page_from_freelist(gfp_t gfp_mask, nodemask_t *nodemask, unsigned int order, (void)first_zones_zonelist(zonelist, high_zoneidx, nodemask, &preferred_zone); + if (!preferred_zone) + return NULL; + classzone_idx = zone_idx(preferred_zone); zonelist_scan: @@ -2804,7 +2807,7 @@ int zone_wait_table_init(struct zone *zone, unsigned long zone_size_pages) alloc_size = zone->wait_table_hash_nr_entries * sizeof(wait_queue_head_t); - if (system_state == SYSTEM_BOOTING) { + if (!slab_is_available()) { zone->wait_table = (wait_queue_head_t *) alloc_bootmem_node(pgdat, alloc_size); } else { @@ -3378,7 +3381,8 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat, * is used by this zone for memmap. This affects the watermark * and per-cpu initialisations */ - memmap_pages = (size * sizeof(struct page)) >> PAGE_SHIFT; + memmap_pages = + PAGE_ALIGN(size * sizeof(struct page)) >> PAGE_SHIFT; if (realsize >= memmap_pages) { realsize -= memmap_pages; printk(KERN_DEBUG diff --git a/mm/swap.c b/mm/swap.c index 91e194445a5e..45c9f25a8a3b 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -503,7 +503,7 @@ void vm_acct_memory(long pages) local = &__get_cpu_var(committed_space); *local += pages; if (*local > ACCT_THRESHOLD || *local < -ACCT_THRESHOLD) { - atomic_add(*local, &vm_committed_space); + atomic_long_add(*local, &vm_committed_space); *local = 0; } preempt_enable(); @@ -520,7 +520,7 @@ static int cpu_swap_callback(struct notifier_block *nfb, committed = &per_cpu(committed_space, (long)hcpu); if (action == CPU_DEAD || action == CPU_DEAD_FROZEN) { - atomic_add(*committed, &vm_committed_space); + atomic_long_add(*committed, &vm_committed_space); *committed = 0; drain_cpu_pagevecs((long)hcpu); } |