From b37665e0ba1d3f05697bfae249b09a2e9cc95132 Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Fri, 28 Oct 2005 17:46:27 -0700 Subject: [PATCH] ppc32: 85xx PHY Platform Update This patch updates the 85xx platform code to support the new PHY Layer. Signed-off-by: Andy Fleming Signed-off-by: Kumar Gala Signed-off-by: Andrew Morton Signed-off-by: Paul Mackerras --- include/linux/fsl_devices.h | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h index 70f54af87b9f..114d5d59f695 100644 --- a/include/linux/fsl_devices.h +++ b/include/linux/fsl_devices.h @@ -47,16 +47,21 @@ struct gianfar_platform_data { /* device specific information */ u32 device_flags; - u32 phy_reg_addr; /* board specific information */ u32 board_flags; - u32 phy_flags; - u32 phyid; - u32 interruptPHY; + const char *bus_id; u8 mac_addr[6]; }; +struct gianfar_mdio_data { + /* device specific information */ + u32 paddr; + + /* board specific information */ + int irq[32]; +}; + /* Flags related to gianfar device features */ #define FSL_GIANFAR_DEV_HAS_GIGABIT 0x00000001 #define FSL_GIANFAR_DEV_HAS_COALESCE 0x00000002 -- cgit v1.2.3 From 146c98782b57531ce6ba89dfa9d3771c0fd0a94d Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Fri, 28 Oct 2005 17:46:37 -0700 Subject: [PATCH] ppc64 boot: remove include from include/linux/zutil.h zutil.h does not need errno.h Signed-off-by: Olaf Hering Cc: Benjamin Herrenschmidt Cc: Anton Blanchard Signed-off-by: Andrew Morton Signed-off-by: Paul Mackerras --- include/linux/zutil.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/zutil.h b/include/linux/zutil.h index fdfd5ed41ec4..ee0c59cf2136 100644 --- a/include/linux/zutil.h +++ b/include/linux/zutil.h @@ -15,7 +15,6 @@ #include #include -#include #include typedef unsigned char uch; -- cgit v1.2.3 From d052d1beff706920e82c5d55006b08e256b5df09 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 29 Oct 2005 19:07:23 +0100 Subject: Create platform_device.h to contain all the platform device details. Convert everyone who uses platform_bus_type to include linux/platform_device.h. Signed-off-by: Russell King Acked-by: Greg Kroah-Hartman --- include/linux/device.h | 26 -------------------------- include/linux/serial_8250.h | 2 +- 2 files changed, 1 insertion(+), 27 deletions(-) (limited to 'include/linux') diff --git a/include/linux/device.h b/include/linux/device.h index a9e72ac3fb9f..17cbc6db67b4 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -396,32 +396,6 @@ extern struct device * get_device(struct device * dev); extern void put_device(struct device * dev); -/* drivers/base/platform.c */ - -struct platform_device { - const char * name; - u32 id; - struct device dev; - u32 num_resources; - struct resource * resource; -}; - -#define to_platform_device(x) container_of((x), struct platform_device, dev) - -extern int platform_device_register(struct platform_device *); -extern void platform_device_unregister(struct platform_device *); - -extern struct bus_type platform_bus_type; -extern struct device platform_bus; - -extern struct resource *platform_get_resource(struct platform_device *, unsigned int, unsigned int); -extern int platform_get_irq(struct platform_device *, unsigned int); -extern struct resource *platform_get_resource_byname(struct platform_device *, unsigned int, char *); -extern int platform_get_irq_byname(struct platform_device *, char *); -extern int platform_add_devices(struct platform_device **, int); - -extern struct platform_device *platform_device_register_simple(char *, unsigned int, struct resource *, unsigned int); - /* drivers/base/power.c */ extern void device_shutdown(void); diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index 317a979b24de..2b799d40d669 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -12,7 +12,7 @@ #define _LINUX_SERIAL_8250_H #include -#include +#include /* * This is the platform device platform_data structure -- cgit v1.2.3 From bbbf508d6403f9dfeeb040d9cd7366e395632e59 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 29 Oct 2005 22:17:58 +0100 Subject: [DRIVER MODEL] Add missing platform_device.h header. Signed-off-by: Russell King --- include/linux/platform_device.h | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 include/linux/platform_device.h (limited to 'include/linux') diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h new file mode 100644 index 000000000000..a726225e0afe --- /dev/null +++ b/include/linux/platform_device.h @@ -0,0 +1,40 @@ +/* + * platform_device.h - generic, centralized driver model + * + * Copyright (c) 2001-2003 Patrick Mochel + * + * This file is released under the GPLv2 + * + * See Documentation/driver-model/ for more information. + */ + +#ifndef _PLATFORM_DEVICE_H_ +#define _PLATFORM_DEVICE_H_ + +#include + +struct platform_device { + const char * name; + u32 id; + struct device dev; + u32 num_resources; + struct resource * resource; +}; + +#define to_platform_device(x) container_of((x), struct platform_device, dev) + +extern int platform_device_register(struct platform_device *); +extern void platform_device_unregister(struct platform_device *); + +extern struct bus_type platform_bus_type; +extern struct device platform_bus; + +extern struct resource *platform_get_resource(struct platform_device *, unsigned int, unsigned int); +extern int platform_get_irq(struct platform_device *, unsigned int); +extern struct resource *platform_get_resource_byname(struct platform_device *, unsigned int, char *); +extern int platform_get_irq_byname(struct platform_device *, char *); +extern int platform_add_devices(struct platform_device **, int); + +extern struct platform_device *platform_device_register_simple(char *, unsigned int, struct resource *, unsigned int); + +#endif /* _PLATFORM_DEVICE_H_ */ -- cgit v1.2.3 From 0d078f6f96809c95c69b99d6605a502b0ac63d3d Mon Sep 17 00:00:00 2001 From: Brian Gerst Date: Sun, 30 Oct 2005 14:59:20 -0800 Subject: [PATCH] CONFIG_IA32 Add CONFIG_X86_32 for i386. This allows selecting options that only apply to 32-bit systems. (X86 && !X86_64) becomes X86_32 (X86 || X86_64) becomes X86 Signed-off-by: Brian Gerst Cc: Sam Ravnborg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/dmi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/dmi.h b/include/linux/dmi.h index a415f1d93e9a..05f4132622fc 100644 --- a/include/linux/dmi.h +++ b/include/linux/dmi.h @@ -60,7 +60,7 @@ struct dmi_device { void *device_data; /* Type specific data */ }; -#if defined(CONFIG_X86) && !defined(CONFIG_X86_64) +#if defined(CONFIG_X86_32) extern int dmi_check_system(struct dmi_system_id *list); extern char * dmi_get_system_info(int field); -- cgit v1.2.3 From d381d8a9a08cac9824096213069159be17fd2e2f Mon Sep 17 00:00:00 2001 From: James Morris Date: Sun, 30 Oct 2005 14:59:22 -0800 Subject: [PATCH] SELinux: canonicalize getxattr() This patch allows SELinux to canonicalize the value returned from getxattr() via the security_inode_getsecurity() hook, which is called after the fs level getxattr() function. The purpose of this is to allow the in-core security context for an inode to override the on-disk value. This could happen in cases such as upgrading a system to a different labeling form (e.g. standard SELinux to MLS) without needing to do a full relabel of the filesystem. In such cases, we want getxattr() to return the canonical security context that the kernel is using rather than what is stored on disk. The implementation hooks into the inode_getsecurity(), adding another parameter to indicate the result of the preceding fs-level getxattr() call, so that SELinux knows whether to compare a value obtained from disk with the kernel value. We also now allow getxattr() to work for mountpoint labeled filesystems (i.e. mount with option context=foo_t), as we are able to return the kernel value to the user. Signed-off-by: James Morris Signed-off-by: Stephen Smalley Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/security.h | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/security.h b/include/linux/security.h index dac956ed98f0..607ee209ea3b 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -385,6 +385,9 @@ struct swap_info_struct; * NULL to request the size of the buffer required. @size indicates * the size of @buffer in bytes. Note that @name is the remainder * of the attribute name after the security. prefix has been removed. + * @err is the return value from the preceding fs getxattr call, + * and can be used by the security module to determine whether it + * should try and canonicalize the attribute value. * Return number of bytes used/required on success. * @inode_setsecurity: * Set the security label associated with @name for @inode from the @@ -1091,7 +1094,7 @@ struct security_operations { int (*inode_getxattr) (struct dentry *dentry, char *name); int (*inode_listxattr) (struct dentry *dentry); int (*inode_removexattr) (struct dentry *dentry, char *name); - int (*inode_getsecurity)(struct inode *inode, const char *name, void *buffer, size_t size); + int (*inode_getsecurity)(struct inode *inode, const char *name, void *buffer, size_t size, int err); int (*inode_setsecurity)(struct inode *inode, const char *name, const void *value, size_t size, int flags); int (*inode_listsecurity)(struct inode *inode, char *buffer, size_t buffer_size); @@ -1580,11 +1583,11 @@ static inline int security_inode_removexattr (struct dentry *dentry, char *name) return security_ops->inode_removexattr (dentry, name); } -static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size) +static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size, int err) { if (unlikely (IS_PRIVATE (inode))) return 0; - return security_ops->inode_getsecurity(inode, name, buffer, size); + return security_ops->inode_getsecurity(inode, name, buffer, size, err); } static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) @@ -2222,7 +2225,7 @@ static inline int security_inode_removexattr (struct dentry *dentry, char *name) return cap_inode_removexattr(dentry, name); } -static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size) +static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size, int err) { return -EOPNOTSUPP; } -- cgit v1.2.3 From bda98685b855f71f7e2fc5378aa3cdfb24a9db65 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sun, 30 Oct 2005 14:59:44 -0800 Subject: [PATCH] x86: inline spin_unlock if !CONFIG_DEBUG_SPINLOCK and !CONFIG_PREEMPT Signed-off-by: Ingo Molnar Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/spinlock.h | 31 +++++++++++++++++++++++++------ 1 file changed, 25 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index cdc99a27840d..0e9682c9def5 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h @@ -171,23 +171,42 @@ extern int __lockfunc generic__raw_read_trylock(raw_rwlock_t *lock); #define write_lock_irq(lock) _write_lock_irq(lock) #define write_lock_bh(lock) _write_lock_bh(lock) -#define spin_unlock(lock) _spin_unlock(lock) -#define write_unlock(lock) _write_unlock(lock) -#define read_unlock(lock) _read_unlock(lock) +/* + * We inline the unlock functions in the nondebug case: + */ +#if defined(CONFIG_DEBUG_SPINLOCK) || defined(CONFIG_PREEMPT) || !defined(CONFIG_SMP) +# define spin_unlock(lock) _spin_unlock(lock) +# define read_unlock(lock) _read_unlock(lock) +# define write_unlock(lock) _write_unlock(lock) +#else +# define spin_unlock(lock) __raw_spin_unlock(&(lock)->raw_lock) +# define read_unlock(lock) __raw_read_unlock(&(lock)->raw_lock) +# define write_unlock(lock) __raw_write_unlock(&(lock)->raw_lock) +#endif + +#if defined(CONFIG_DEBUG_SPINLOCK) || defined(CONFIG_PREEMPT) || !defined(CONFIG_SMP) +# define spin_unlock_irq(lock) _spin_unlock_irq(lock) +# define read_unlock_irq(lock) _read_unlock_irq(lock) +# define write_unlock_irq(lock) _write_unlock_irq(lock) +#else +# define spin_unlock_irq(lock) \ + do { __raw_spin_unlock(&(lock)->raw_lock); local_irq_enable(); } while (0) +# define read_unlock_irq(lock) \ + do { __raw_read_unlock(&(lock)->raw_lock); local_irq_enable(); } while (0) +# define write_unlock_irq(lock) \ + do { __raw_write_unlock(&(lock)->raw_lock); local_irq_enable(); } while (0) +#endif #define spin_unlock_irqrestore(lock, flags) \ _spin_unlock_irqrestore(lock, flags) -#define spin_unlock_irq(lock) _spin_unlock_irq(lock) #define spin_unlock_bh(lock) _spin_unlock_bh(lock) #define read_unlock_irqrestore(lock, flags) \ _read_unlock_irqrestore(lock, flags) -#define read_unlock_irq(lock) _read_unlock_irq(lock) #define read_unlock_bh(lock) _read_unlock_bh(lock) #define write_unlock_irqrestore(lock, flags) \ _write_unlock_irqrestore(lock, flags) -#define write_unlock_irq(lock) _write_unlock_irq(lock) #define write_unlock_bh(lock) _write_unlock_bh(lock) #define spin_trylock_bh(lock) __cond_lock(_spin_trylock_bh(lock)) -- cgit v1.2.3 From ad74557a49d1dea428fb0ad60e75a5aa37610e1d Mon Sep 17 00:00:00 2001 From: Ashok Raj Date: Sun, 30 Oct 2005 14:59:49 -0800 Subject: [PATCH] introduce get_cpu_sysdev() to retrieve a sysfs entry for a cpu. Some modules creating sysfs entries under /sys/devices/system/cpu/cpuX/ need to know the parent sysfs entry to make devices under them. This will just return the sysfs entry for a given cpu. sysfs entries showing under each cpu sysfs can be easily created if such entries can be created by registering a sysfs driver for cpuclass. The issue is when the entry is created the CPU may not be online, hence we would need to defer the creation until the online notification comes. Current users: cache entries for Intel CPU's and cpufreq subsystem. Signed-off-by: Ashok Raj Signed-off-by: Venkatesh Pallipadi Cc: Dave Jones Cc: Zwane Mwaikambo Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/cpu.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 86980c68234a..1f7b2c097503 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -32,6 +32,7 @@ struct cpu { }; extern int register_cpu(struct cpu *, int, struct node *); +extern struct sys_device *get_cpu_sysdev(int cpu); #ifdef CONFIG_HOTPLUG_CPU extern void unregister_cpu(struct cpu *, struct node *); #endif -- cgit v1.2.3 From 25761b6eb7b33823bcfff6bfe2a015badcd76fb8 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 30 Oct 2005 14:59:56 -0800 Subject: [PATCH] swsusp: move snapshot functionality to separate file The following patch moves the functionality of swsusp related to creating and handling the snapshot of memory to a separate file, snapshot.c This should enable us to untangle the code in the future and eventually to implement some parts of swsusp.c in the user space. The patch does not change the code. Signed-off-by: Rafael J. Wysocki Signed-off-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/suspend.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/suspend.h b/include/linux/suspend.h index ba448c760168..380915e9563d 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -74,4 +74,10 @@ void __restore_processor_state(struct saved_context *ctxt); extern unsigned long get_usable_page(gfp_t gfp_mask); extern void free_eaten_memory(void); +/* + * XXX: We try to keep some more pages free so that I/O operations succeed + * without paging. Might this be more? + */ +#define PAGES_FOR_IO 512 + #endif /* _LINUX_SWSUSP_H */ -- cgit v1.2.3 From 2c1b4a5ca48831595979a850f40ced8e7da026f8 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 30 Oct 2005 14:59:58 -0800 Subject: [PATCH] swsusp: rework memory freeing on resume The following patch makes swsusp use the PG_nosave and PG_nosave_free flags to mark pages that should be freed in case of an error during resume. This allows us to simplify the code and to use swsusp_free() in all of the swsusp's resume error paths, which makes them actually work. Signed-off-by: Rafael J. Wysocki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/suspend.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 380915e9563d..a61c04f804b2 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -71,8 +71,7 @@ void restore_processor_state(void); struct saved_context; void __save_processor_state(struct saved_context *ctxt); void __restore_processor_state(struct saved_context *ctxt); -extern unsigned long get_usable_page(gfp_t gfp_mask); -extern void free_eaten_memory(void); +unsigned long get_safe_page(gfp_t gfp_mask); /* * XXX: We try to keep some more pages free so that I/O operations succeed -- cgit v1.2.3 From eb9289eb20df6b54214c45ac7c6bf5179a149026 Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Sun, 30 Oct 2005 15:00:01 -0800 Subject: [PATCH] introduce .valid callback for pm_ops Add pm_ops.valid callback, so only the available pm states show in /sys/power/state. And this also makes an earlier states error report at enter_state before we do actual suspend/resume. Signed-off-by: Shaohua Li Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/pm.h b/include/linux/pm.h index c61d5de837ef..1514098d156d 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -170,6 +170,7 @@ typedef int __bitwise suspend_disk_method_t; struct pm_ops { suspend_disk_method_t pm_disk_mode; + int (*valid)(suspend_state_t state); int (*prepare)(suspend_state_t state); int (*enter)(suspend_state_t state); int (*finish)(suspend_state_t state); -- cgit v1.2.3 From aaa4059bc2dca7fa816624a28db1958c3a22df9b Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Sun, 30 Oct 2005 15:00:16 -0800 Subject: [PATCH] ext3: Fix unmapped buffers in transaction's lists Fix the problem (BUG 4964) with unmapped buffers in transaction's t_sync_data list. The problem is we need to call filesystem's own invalidatepage() from block_write_full_page(). block_write_full_page() must call filesystem's invalidatepage(). Otherwise following nasty race can happen: proc 1 proc 2 ------ ------ - write some new data to 'offset' => bh gets to the transactions data list - starts truncate => i_size set to new size - mpage_writepages() - ext3_ordered_writepage() to 'offset' - block_write_full_page() - page->index > end_index+1 - block_invalidatepage() - discard_buffer() - clear_buffer_mapped() - commit triggers and finds unmapped buffer - BOOM! Signed-off-by: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/buffer_head.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index c937d6e65502..1db061bb6b08 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -190,6 +190,7 @@ extern int buffer_heads_over_limit; */ int try_to_release_page(struct page * page, gfp_t gfp_mask); int block_invalidatepage(struct page *page, unsigned long offset); +int do_invalidatepage(struct page *page, unsigned long offset); int block_write_full_page(struct page *page, get_block_t *get_block, struct writeback_control *wbc); int block_read_full_page(struct page*, get_block_t*); -- cgit v1.2.3 From a8db2db1e6a8d323d87a67c5391d48fe2b97faf5 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sun, 30 Oct 2005 15:01:38 -0800 Subject: [PATCH] introduce setup_timer() helper Every user of init_timer() also needs to initialize ->function and ->data fields. This patch adds a simple setup_timer() helper for that. The schedule_timeout() is patched as an example of usage. Signed-off-by: Oleg Nesterov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/timer.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/timer.h b/include/linux/timer.h index 3340f3bd135d..ddd5bbe1fc8e 100644 --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -38,6 +38,15 @@ extern struct timer_base_s __init_timer_base; void fastcall init_timer(struct timer_list * timer); +static inline void setup_timer(struct timer_list * timer, + void (*function)(unsigned long), + unsigned long data) +{ + timer->function = function; + timer->data = data; + init_timer(timer); +} + /*** * timer_pending - is a timer pending? * @timer: the timer in question -- cgit v1.2.3 From 61e1a9ea4b425eb8c3b4965c35fe953bd881728f Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Sun, 30 Oct 2005 15:01:40 -0800 Subject: [PATCH] Add kthread_stop_sem() Enhance the kthread API by adding kthread_stop_sem, for use in stopping threads that spend their idle time waiting on a semaphore. Signed-off-by: Alan Stern Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/kthread.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/linux') diff --git a/include/linux/kthread.h b/include/linux/kthread.h index 3fa786448db3..ebdd41fd1082 100644 --- a/include/linux/kthread.h +++ b/include/linux/kthread.h @@ -69,6 +69,18 @@ void kthread_bind(struct task_struct *k, unsigned int cpu); * was never called. */ int kthread_stop(struct task_struct *k); +/** + * kthread_stop_sem: stop a thread created by kthread_create(). + * @k: thread created by kthread_create(). + * @s: semaphore that @k waits on while idle. + * + * Does essentially the same thing as kthread_stop() above, but wakes + * @k by calling up(@s). + * + * Returns the result of threadfn(), or -EINTR if wake_up_process() + * was never called. */ +int kthread_stop_sem(struct task_struct *k, struct semaphore *s); + /** * kthread_should_stop: should this kthread return now? * -- cgit v1.2.3 From 1bb34a412750291e4e5e9f1d0fe7ae1b7e976098 Mon Sep 17 00:00:00 2001 From: john stultz Date: Sun, 30 Oct 2005 15:01:42 -0800 Subject: [PATCH] NTP shift_right cleanup Create a macro shift_right() that avoids the numerous ugly conditionals in the NTP code that look like: if(a < 0) b = -(-a >> shift); else b = a >> shift; Replacing it with: b = shift_right(a, shift); This should have zero effect on the logic, however it should probably have a bit of testing just to be sure. Also replace open-coded min/max with the macros. Signed-off-by : John Stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/timex.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/timex.h b/include/linux/timex.h index 7e050a2cc35b..04a4a8cb4ed3 100644 --- a/include/linux/timex.h +++ b/include/linux/timex.h @@ -282,6 +282,13 @@ static inline int ntp_synced(void) return !(time_status & STA_UNSYNC); } +/* Required to safely shift negative values */ +#define shift_right(x, s) ({ \ + __typeof__(x) __x = (x); \ + __typeof__(s) __s = (s); \ + __x < 0 ? -(-__x >> __s) : __x >> __s; \ +}) + #ifdef CONFIG_TIME_INTERPOLATION -- cgit v1.2.3 From dfc4f94d2ff95fc92127d3e512c1df7cab274fb8 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Sun, 30 Oct 2005 15:02:03 -0800 Subject: [PATCH] remove timer debug field Remove timer_list.magic and associated debugging code. I originally added this when a spinlock was added to timer_list - this meant that an all-zeroes timer became illegal and init_timer() was required. That spinlock isn't even there any more, although timer.base must now be initialised. I'll keep this debugging code in -mm. Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/timer.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/timer.h b/include/linux/timer.h index ddd5bbe1fc8e..b1dc583bb4d4 100644 --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -12,16 +12,12 @@ struct timer_list { struct list_head entry; unsigned long expires; - unsigned long magic; - void (*function)(unsigned long); unsigned long data; struct timer_base_s *base; }; -#define TIMER_MAGIC 0x4b87ad6e - extern struct timer_base_s __init_timer_base; #define TIMER_INITIALIZER(_function, _expires, _data) { \ @@ -29,7 +25,6 @@ extern struct timer_base_s __init_timer_base; .expires = (_expires), \ .data = (_data), \ .base = &__init_timer_base, \ - .magic = TIMER_MAGIC, \ } #define DEFINE_TIMER(_name, _function, _expires, _data) \ -- cgit v1.2.3 From 2f51201662b28dbf8c15fb7eb972bc51c6cc3fa5 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 30 Oct 2005 15:02:16 -0800 Subject: [PATCH] reduce sizeof(struct file) Now that RCU applied on 'struct file' seems stable, we can place f_rcuhead in a memory location that is not anymore used at call_rcu(&f->f_rcuhead, file_free_rcu) time, to reduce the size of this critical kernel object. The trick I used is to move f_rcuhead and f_list in an union called f_u The callers are changed so that f_rcuhead becomes f_u.fu_rcuhead and f_list becomes f_u.f_list Signed-off-by: Eric Dumazet Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/fs.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fs.h b/include/linux/fs.h index f83d997c5582..6d6226732c93 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -574,7 +574,14 @@ struct file_ra_state { #define RA_FLAG_INCACHE 0x02 /* file is already in cache */ struct file { - struct list_head f_list; + /* + * fu_list becomes invalid after file_free is called and queued via + * fu_rcuhead for RCU freeing + */ + union { + struct list_head fu_list; + struct rcu_head fu_rcuhead; + } f_u; struct dentry *f_dentry; struct vfsmount *f_vfsmnt; struct file_operations *f_op; @@ -598,7 +605,6 @@ struct file { spinlock_t f_ep_lock; #endif /* #ifdef CONFIG_EPOLL */ struct address_space *f_mapping; - struct rcu_head f_rcuhead; }; extern spinlock_t files_lock; #define file_list_lock() spin_lock(&files_lock); -- cgit v1.2.3 From 19a4fcb531659f2f7d18b5d04cee039176e9540d Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sun, 30 Oct 2005 15:02:17 -0800 Subject: [PATCH] kill sigqueue->lock This lock is used in sigqueue_free(), but it is always equal to current->sighand->siglock, so we don't need to keep it in the struct sigqueue. Signed-off-by: Oleg Nesterov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/signal.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/signal.h b/include/linux/signal.h index 7be18b5e2fb4..5dd5f02c5c5f 100644 --- a/include/linux/signal.h +++ b/include/linux/signal.h @@ -25,7 +25,6 @@ struct sigqueue { struct list_head list; - spinlock_t *lock; int flags; siginfo_t info; struct user_struct *user; -- cgit v1.2.3 From dfb7dac3af623a68262536437af008ed6aba4d88 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 30 Oct 2005 15:02:22 -0800 Subject: [PATCH] unify sys_ptrace prototype Make sure we always return, as all syscalls should. Also move the common prototype to Signed-off-by: Christoph Hellwig Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/syscalls.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index a6f03e473737..c7007b1db91d 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -491,6 +491,7 @@ asmlinkage long sys_nfsservctl(int cmd, asmlinkage long sys_syslog(int type, char __user *buf, int len); asmlinkage long sys_uselib(const char __user *library); asmlinkage long sys_ni_syscall(void); +asmlinkage long sys_ptrace(long request, long pid, long addr, long data); asmlinkage long sys_add_key(const char __user *_type, const char __user *_description, -- cgit v1.2.3 From 15d2bace5ec907530a3d0e0cf4bb1bd29f3ad7b7 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Sun, 30 Oct 2005 15:02:24 -0800 Subject: [PATCH] add_timer() of a pending timer is illegal In the recent timer rework we lost the check for an add_timer() of an already-pending timer. That check was useful for networking, so put it back. Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/timer.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/timer.h b/include/linux/timer.h index b1dc583bb4d4..72f3a7781106 100644 --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -78,8 +78,9 @@ extern unsigned long next_timer_interrupt(void); * Timers with an ->expired field in the past will be executed in the next * timer tick. */ -static inline void add_timer(struct timer_list * timer) +static inline void add_timer(struct timer_list *timer) { + BUG_ON(timer_pending(timer)); __mod_timer(timer, timer->expires); } -- cgit v1.2.3 From 053199edf54f685e7dea765b60d4d5e9070dadec Mon Sep 17 00:00:00 2001 From: Paul Jackson Date: Sun, 30 Oct 2005 15:02:30 -0800 Subject: [PATCH] cpusets: dual semaphore locking overhaul Overhaul cpuset locking. Replace single semaphore with two semaphores. The suggestion to use two locks was made by Roman Zippel. Both locks are global. Code that wants to modify cpusets must first acquire the exclusive manage_sem, which allows them read-only access to cpusets, and holds off other would-be modifiers. Before making actual changes, the second semaphore, callback_sem must be acquired as well. Code that needs only to query cpusets must acquire callback_sem, which is also a global exclusive lock. The earlier problems with double tripping are avoided, because it is allowed for holders of manage_sem to nest the second callback_sem lock, and only callback_sem is needed by code called from within __alloc_pages(), where the double tripping had been possible. This is not quite the same as a normal read/write semaphore, because obtaining read-only access with intent to change must hold off other such attempts, while allowing read-only access w/o such intention. Changing cpusets involves several related checks and changes, which must be done while allowing read-only queries (to avoid the double trip), but while ensuring nothing changes (holding off other would be modifiers.) This overhaul of cpuset locking also makes careful use of task_lock() to guard access to the task->cpuset pointer, closing a couple of race conditions noticed while reading this code (thanks, Roman). I've never seen these races fail in any use or test. See further the comments in the code. Signed-off-by: Paul Jackson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sched.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 1c30bc308ef1..b2d2dc14f0b9 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1211,7 +1211,7 @@ extern void unhash_process(struct task_struct *p); /* * Protects ->fs, ->files, ->mm, ->ptrace, ->group_info, ->comm, keyring * subscriptions and synchronises with wait4(). Also used in procfs. Also - * pins the final release of task.io_context. + * pins the final release of task.io_context. Also protects ->cpuset. * * Nests both inside and outside of read_lock(&tasklist_lock). * It must not be nested with write_lock_irq(&tasklist_lock), -- cgit v1.2.3 From fb5eeeee44edb248b4837416966f19731f497f79 Mon Sep 17 00:00:00 2001 From: Paul Jackson Date: Sun, 30 Oct 2005 15:02:33 -0800 Subject: [PATCH] cpusets: bitmap and mask remap operators In the forthcoming task migration support, a key calculation will be mapping cpu and node numbers from the old set to the new set while preserving cpuset-relative offset. For example, if a task and its pages on nodes 8-11 are being migrated to nodes 24-27, then pages on node 9 (the 2nd node in the old set) should be moved to node 25 (the 2nd node in the new set.) As with other bitmap operations, the proper way to code this is to provide the underlying calculation in lib/bitmap.c, and then to provide the usual cpumask and nodemask wrappers. This patch provides that. These operations are termed 'remap' operations. Both remapping a single bit and a set of bits is supported. Signed-off-by: Paul Jackson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bitmap.h | 6 ++++++ include/linux/cpumask.h | 20 ++++++++++++++++++++ include/linux/nodemask.h | 20 ++++++++++++++++++++ 3 files changed, 46 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 86dd5502b05c..7d8ff97b3e92 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -40,6 +40,8 @@ * bitmap_weight(src, nbits) Hamming Weight: number set bits * bitmap_shift_right(dst, src, n, nbits) *dst = *src >> n * bitmap_shift_left(dst, src, n, nbits) *dst = *src << n + * bitmap_remap(dst, src, old, new, nbits) *dst = map(old, new)(src) + * bitmap_bitremap(oldbit, old, new, nbits) newbit = map(old, new)(oldbit) * bitmap_scnprintf(buf, len, src, nbits) Print bitmap src to buf * bitmap_parse(ubuf, ulen, dst, nbits) Parse bitmap dst from user buf * bitmap_scnlistprintf(buf, len, src, nbits) Print bitmap src as list to buf @@ -104,6 +106,10 @@ extern int bitmap_scnlistprintf(char *buf, unsigned int len, const unsigned long *src, int nbits); extern int bitmap_parselist(const char *buf, unsigned long *maskp, int nmaskbits); +extern void bitmap_remap(unsigned long *dst, const unsigned long *src, + const unsigned long *old, const unsigned long *new, int bits); +extern int bitmap_bitremap(int oldbit, + const unsigned long *old, const unsigned long *new, int bits); extern int bitmap_find_free_region(unsigned long *bitmap, int bits, int order); extern void bitmap_release_region(unsigned long *bitmap, int pos, int order); extern int bitmap_allocate_region(unsigned long *bitmap, int pos, int order); diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 9bdba8169b41..13e9f4a3ab26 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -12,6 +12,8 @@ * see bitmap_scnprintf() and bitmap_parse() in lib/bitmap.c. * For details of cpulist_scnprintf() and cpulist_parse(), see * bitmap_scnlistprintf() and bitmap_parselist(), also in bitmap.c. + * For details of cpu_remap(), see bitmap_bitremap in lib/bitmap.c + * For details of cpus_remap(), see bitmap_remap in lib/bitmap.c. * * The available cpumask operations are: * @@ -50,6 +52,8 @@ * int cpumask_parse(ubuf, ulen, mask) Parse ascii string as cpumask * int cpulist_scnprintf(buf, len, mask) Format cpumask as list for printing * int cpulist_parse(buf, map) Parse ascii string as cpulist + * int cpu_remap(oldbit, old, new) newbit = map(old, new)(oldbit) + * int cpus_remap(dst, src, old, new) *dst = map(old, new)(src) * * for_each_cpu_mask(cpu, mask) for-loop cpu over mask * @@ -294,6 +298,22 @@ static inline int __cpulist_parse(const char *buf, cpumask_t *dstp, int nbits) return bitmap_parselist(buf, dstp->bits, nbits); } +#define cpu_remap(oldbit, old, new) \ + __cpu_remap((oldbit), &(old), &(new), NR_CPUS) +static inline int __cpu_remap(int oldbit, + const cpumask_t *oldp, const cpumask_t *newp, int nbits) +{ + return bitmap_bitremap(oldbit, oldp->bits, newp->bits, nbits); +} + +#define cpus_remap(dst, src, old, new) \ + __cpus_remap(&(dst), &(src), &(old), &(new), NR_CPUS) +static inline void __cpus_remap(cpumask_t *dstp, const cpumask_t *srcp, + const cpumask_t *oldp, const cpumask_t *newp, int nbits) +{ + bitmap_remap(dstp->bits, srcp->bits, oldp->bits, newp->bits, nbits); +} + #if NR_CPUS > 1 #define for_each_cpu_mask(cpu, mask) \ for ((cpu) = first_cpu(mask); \ diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h index e96fe9062500..4726ef7ba8e8 100644 --- a/include/linux/nodemask.h +++ b/include/linux/nodemask.h @@ -12,6 +12,8 @@ * see bitmap_scnprintf() and bitmap_parse() in lib/bitmap.c. * For details of nodelist_scnprintf() and nodelist_parse(), see * bitmap_scnlistprintf() and bitmap_parselist(), also in bitmap.c. + * For details of node_remap(), see bitmap_bitremap in lib/bitmap.c. + * For details of nodes_remap(), see bitmap_remap in lib/bitmap.c. * * The available nodemask operations are: * @@ -52,6 +54,8 @@ * int nodemask_parse(ubuf, ulen, mask) Parse ascii string as nodemask * int nodelist_scnprintf(buf, len, mask) Format nodemask as list for printing * int nodelist_parse(buf, map) Parse ascii string as nodelist + * int node_remap(oldbit, old, new) newbit = map(old, new)(oldbit) + * int nodes_remap(dst, src, old, new) *dst = map(old, new)(dst) * * for_each_node_mask(node, mask) for-loop node over mask * @@ -307,6 +311,22 @@ static inline int __nodelist_parse(const char *buf, nodemask_t *dstp, int nbits) return bitmap_parselist(buf, dstp->bits, nbits); } +#define node_remap(oldbit, old, new) \ + __node_remap((oldbit), &(old), &(new), MAX_NUMNODES) +static inline int __node_remap(int oldbit, + const nodemask_t *oldp, const nodemask_t *newp, int nbits) +{ + return bitmap_bitremap(oldbit, oldp->bits, newp->bits, nbits); +} + +#define nodes_remap(dst, src, old, new) \ + __nodes_remap(&(dst), &(src), &(old), &(new), MAX_NUMNODES) +static inline void __nodes_remap(nodemask_t *dstp, const nodemask_t *srcp, + const nodemask_t *oldp, const nodemask_t *newp, int nbits) +{ + bitmap_remap(dstp->bits, srcp->bits, oldp->bits, newp->bits, nbits); +} + #if MAX_NUMNODES > 1 #define for_each_node_mask(node, mask) \ for ((node) = first_node(mask); \ -- cgit v1.2.3 From 68860ec10bcc07ab4f89f9d940e3b77ae5ca13b3 Mon Sep 17 00:00:00 2001 From: Paul Jackson Date: Sun, 30 Oct 2005 15:02:36 -0800 Subject: [PATCH] cpusets: automatic numa mempolicy rebinding This patch automatically updates a tasks NUMA mempolicy when its cpuset memory placement changes. It does so within the context of the task, without any need to support low level external mempolicy manipulation. If a system is not using cpusets, or if running on a system with just the root (all-encompassing) cpuset, then this remap is a no-op. Only when a task is moved between cpusets, or a cpusets memory placement is changed does the following apply. Otherwise, the main routine below, rebind_policy() is not even called. When mixing cpusets, scheduler affinity, and NUMA mempolicies, the essential role of cpusets is to place jobs (several related tasks) on a set of CPUs and Memory Nodes, the essential role of sched_setaffinity is to manage a jobs processor placement within its allowed cpuset, and the essential role of NUMA mempolicy (mbind, set_mempolicy) is to manage a jobs memory placement within its allowed cpuset. However, CPU affinity and NUMA memory placement are managed within the kernel using absolute system wide numbering, not cpuset relative numbering. This is ok until a job is migrated to a different cpuset, or what's the same, a jobs cpuset is moved to different CPUs and Memory Nodes. Then the CPU affinity and NUMA memory placement of the tasks in the job need to be updated, to preserve their cpuset-relative position. This can be done for CPU affinity using sched_setaffinity() from user code, as one task can modify anothers CPU affinity. This cannot be done from an external task for NUMA memory placement, as that can only be modified in the context of the task using it. However, it easy enough to remap a tasks NUMA mempolicy automatically when a task is migrated, using the existing cpuset mechanism to trigger a refresh of a tasks memory placement after its cpuset has changed. All that is needed is the old and new nodemask, and notice to the task that it needs to rebind its mempolicy. The tasks mems_allowed has the old mask, the tasks cpuset has the new mask, and the existing cpuset_update_current_mems_allowed() mechanism provides the notice. The bitmap/cpumask/nodemask remap operators provide the cpuset relative calculations. This patch leaves open a couple of issues: 1) Updating vma and shmfs/tmpfs/hugetlbfs memory policies: These mempolicies may reference nodes outside of those allowed to the current task by its cpuset. Tasks are migrated as part of jobs, which reside on what might be several cpusets in a subtree. When such a job is migrated, all NUMA memory policy references to nodes within that cpuset subtree should be translated, and references to any nodes outside that subtree should be left untouched. A future patch will provide the cpuset mechanism needed to mark such subtrees. With that patch, we will be able to correctly migrate these other memory policies across a job migration. 2) Updating cpuset, affinity and memory policies in user space: This is harder. Any placement state stored in user space using system-wide numbering will be invalidated across a migration. More work will be required to provide user code with a migration-safe means to manage its cpuset relative placement, while preserving the current API's that pass system wide numbers, not cpuset relative numbers across the kernel-user boundary. Signed-off-by: Paul Jackson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mempolicy.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h index 7af8cb836e78..8b67cf837ca9 100644 --- a/include/linux/mempolicy.h +++ b/include/linux/mempolicy.h @@ -154,6 +154,7 @@ struct mempolicy *get_vma_policy(struct task_struct *task, extern void numa_default_policy(void); extern void numa_policy_init(void); +extern void numa_policy_rebind(const nodemask_t *old, const nodemask_t *new); extern struct mempolicy default_policy; #else @@ -226,6 +227,11 @@ static inline void numa_default_policy(void) { } +static inline void numa_policy_rebind(const nodemask_t *old, + const nodemask_t *new) +{ +} + #endif /* CONFIG_NUMA */ #endif /* __KERNEL__ */ -- cgit v1.2.3 From 29db9190634067c5a328ee5fcc2890251b836b4b Mon Sep 17 00:00:00 2001 From: David Howells Date: Sun, 30 Oct 2005 15:02:44 -0800 Subject: [PATCH] Keys: Add LSM hooks for key management [try #3] The attached patch adds LSM hooks for key management facilities. The notable changes are: (1) The key struct now supports a security pointer for the use of security modules. This will permit key labelling and restrictions on which programs may access a key. (2) Security modules get a chance to note (or abort) the allocation of a key. (3) The key permission checking can now be enhanced by the security modules; the permissions check consults LSM if all other checks bear out. (4) The key permissions checking functions now return an error code rather than a boolean value. (5) An extra permission has been added to govern the modification of attributes (UID, GID, permissions). Note that there isn't an LSM hook specifically for each keyctl() operation, but rather the permissions hook allows control of individual operations based on the permission request bits. Key management access control through LSM is enabled by automatically if both CONFIG_KEYS and CONFIG_SECURITY are enabled. This should be applied on top of the patch ensubjected: [PATCH] Keys: Possessor permissions should be additive Signed-Off-By: David Howells Signed-off-by: Chris Wright Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/key-ui.h | 3 +- include/linux/key.h | 13 ++++++--- include/linux/security.h | 73 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 84 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/key-ui.h b/include/linux/key-ui.h index 7a2e332067c3..e8b8a7a5c496 100644 --- a/include/linux/key-ui.h +++ b/include/linux/key-ui.h @@ -24,7 +24,8 @@ extern spinlock_t key_serial_lock; #define KEY_WRITE 0x04 /* require permission to update / modify */ #define KEY_SEARCH 0x08 /* require permission to search (keyring) or find (key) */ #define KEY_LINK 0x10 /* require permission to link */ -#define KEY_ALL 0x1f /* all the above permissions */ +#define KEY_SETATTR 0x20 /* require permission to change attributes */ +#define KEY_ALL 0x3f /* all the above permissions */ /* * the keyring payload contains a list of the keys to which the keyring is diff --git a/include/linux/key.h b/include/linux/key.h index f1efa016dbf3..53513a3be53b 100644 --- a/include/linux/key.h +++ b/include/linux/key.h @@ -40,28 +40,32 @@ struct key; #define KEY_POS_WRITE 0x04000000 /* possessor can update key payload / add link to keyring */ #define KEY_POS_SEARCH 0x08000000 /* possessor can find a key in search / search a keyring */ #define KEY_POS_LINK 0x10000000 /* possessor can create a link to a key/keyring */ -#define KEY_POS_ALL 0x1f000000 +#define KEY_POS_SETATTR 0x20000000 /* possessor can set key attributes */ +#define KEY_POS_ALL 0x3f000000 #define KEY_USR_VIEW 0x00010000 /* user permissions... */ #define KEY_USR_READ 0x00020000 #define KEY_USR_WRITE 0x00040000 #define KEY_USR_SEARCH 0x00080000 #define KEY_USR_LINK 0x00100000 -#define KEY_USR_ALL 0x001f0000 +#define KEY_USR_SETATTR 0x00200000 +#define KEY_USR_ALL 0x003f0000 #define KEY_GRP_VIEW 0x00000100 /* group permissions... */ #define KEY_GRP_READ 0x00000200 #define KEY_GRP_WRITE 0x00000400 #define KEY_GRP_SEARCH 0x00000800 #define KEY_GRP_LINK 0x00001000 -#define KEY_GRP_ALL 0x00001f00 +#define KEY_GRP_SETATTR 0x00002000 +#define KEY_GRP_ALL 0x00003f00 #define KEY_OTH_VIEW 0x00000001 /* third party permissions... */ #define KEY_OTH_READ 0x00000002 #define KEY_OTH_WRITE 0x00000004 #define KEY_OTH_SEARCH 0x00000008 #define KEY_OTH_LINK 0x00000010 -#define KEY_OTH_ALL 0x0000001f +#define KEY_OTH_SETATTR 0x00000020 +#define KEY_OTH_ALL 0x0000003f struct seq_file; struct user_struct; @@ -119,6 +123,7 @@ struct key { struct key_type *type; /* type of key */ struct rw_semaphore sem; /* change vs change sem */ struct key_user *user; /* owner of this key */ + void *security; /* security data for this key */ time_t expiry; /* time at which key expires (or 0) */ uid_t uid; gid_t gid; diff --git a/include/linux/security.h b/include/linux/security.h index 607ee209ea3b..f7e0ae018712 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -30,6 +30,7 @@ #include #include #include +#include struct ctl_table; @@ -788,6 +789,27 @@ struct swap_info_struct; * @sk_free_security: * Deallocate security structure. * + * Security hooks affecting all Key Management operations + * + * @key_alloc: + * Permit allocation of a key and assign security data. Note that key does + * not have a serial number assigned at this point. + * @key points to the key. + * Return 0 if permission is granted, -ve error otherwise. + * @key_free: + * Notification of destruction; free security data. + * @key points to the key. + * No return value. + * @key_permission: + * See whether a specific operational right is granted to a process on a + * key. + * @key_ref refers to the key (key pointer + possession attribute bit). + * @context points to the process to provide the context against which to + * evaluate the security data on the key. + * @perm describes the combination of permissions required of this key. + * Return 1 if permission granted, 0 if permission denied and -ve it the + * normal permissions model should be effected. + * * Security hooks affecting all System V IPC operations. * * @ipc_permission: @@ -1216,6 +1238,17 @@ struct security_operations { int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority); void (*sk_free_security) (struct sock *sk); #endif /* CONFIG_SECURITY_NETWORK */ + + /* key management security hooks */ +#ifdef CONFIG_KEYS + int (*key_alloc)(struct key *key); + void (*key_free)(struct key *key); + int (*key_permission)(key_ref_t key_ref, + struct task_struct *context, + key_perm_t perm); + +#endif /* CONFIG_KEYS */ + }; /* global variables */ @@ -2764,5 +2797,45 @@ static inline void security_sk_free(struct sock *sk) } #endif /* CONFIG_SECURITY_NETWORK */ +#ifdef CONFIG_KEYS +#ifdef CONFIG_SECURITY +static inline int security_key_alloc(struct key *key) +{ + return security_ops->key_alloc(key); +} + +static inline void security_key_free(struct key *key) +{ + security_ops->key_free(key); +} + +static inline int security_key_permission(key_ref_t key_ref, + struct task_struct *context, + key_perm_t perm) +{ + return security_ops->key_permission(key_ref, context, perm); +} + +#else + +static inline int security_key_alloc(struct key *key) +{ + return 0; +} + +static inline void security_key_free(struct key *key) +{ +} + +static inline int security_key_permission(key_ref_t key_ref, + struct task_struct *context, + key_perm_t perm) +{ + return 0; +} + +#endif +#endif /* CONFIG_KEYS */ + #endif /* ! __LINUX_SECURITY_H */ -- cgit v1.2.3 From 6ea05db06f32adac65b4c4e95ef998839149de12 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Sun, 30 Oct 2005 15:02:52 -0800 Subject: [PATCH] fuse: remove unused define Setting ctime is implicit in all setattr cases, so the FATTR_CTIME definition is unnecessary. It is used by neither the kernel nor by userspace. Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/fuse.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/fuse.h b/include/linux/fuse.h index acbeb96a3353..f98854c2abd7 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -61,7 +61,6 @@ struct fuse_kstatfs { #define FATTR_SIZE (1 << 3) #define FATTR_ATIME (1 << 4) #define FATTR_MTIME (1 << 5) -#define FATTR_CTIME (1 << 6) /** * Flags returned by the OPEN request -- cgit v1.2.3 From 52303e8b5f8aa234865d40d76ea16b0ff4b27022 Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Sun, 30 Oct 2005 15:03:03 -0800 Subject: [PATCH] modules: fix sparse warning for every MODULE_PARM sparse complains about every MODULE_PARM used in a module: warning: symbol '__parm_foo' was not declared. Should it be static? The fix is to split declaration and initialization. While MODULE_PARM is obsolete, it's not something sparse should report. Signed-off-by: Pavel Roskin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/module.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/module.h b/include/linux/module.h index f05372b7fe77..84d75f3a8aca 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -554,7 +554,9 @@ static inline void MODULE_PARM_(void) { } #ifdef MODULE /* DEPRECATED: Do not use. */ #define MODULE_PARM(var,type) \ -struct obsolete_modparm __parm_##var __attribute__((section("__obsparm"))) = \ +extern struct obsolete_modparm __parm_##var \ +__attribute__((section("__obsparm"))); \ +struct obsolete_modparm __parm_##var = \ { __stringify(var), type, &MODULE_PARM_ }; \ __MODULE_PARM_TYPE(var, type); #else -- cgit v1.2.3 From c0398ee6c2fe3c1743ecc74a6378b67ba0880a4f Mon Sep 17 00:00:00 2001 From: Nikita Danilov Date: Sun, 30 Oct 2005 15:03:10 -0800 Subject: [PATCH] include/linux/kernel.h:BUILD_BUG_ON(): fix a comment Fix comment describing BUILD_BUG_ON: BUG_ON is not an assertion (unfortunately). Signed-off-by: Nikita Danilov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/kernel.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 4367ce4db52a..f1925ccc9fe1 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -307,7 +307,7 @@ struct sysinfo { char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ }; -/* Force a compilation error if condition is false */ +/* Force a compilation error if condition is true */ #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) #ifdef CONFIG_SYSCTL -- cgit v1.2.3 From a241ec65aeac3d69a08a7b153cccbdb7ea35063f Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Sun, 30 Oct 2005 15:03:12 -0800 Subject: [PATCH] RCU torture-testing kernel module This patch is a rewrite of the one submitted on October 1st, using modules (http://marc.theaimsgroup.com/?l=linux-kernel&m=112819093522998&w=2). This rewrite adds a tristate CONFIG_RCU_TORTURE_TEST, which enables an intense torture test of the RCU infratructure. This is needed due to the continued changes to the RCU infrastructure to accommodate dynamic ticks, CPU hotplug, realtime, and so on. Most of the code is in a separate file that is compiled only if the CONFIG variable is set. Documentation on how to run the test and interpret the output is also included. This code has been tested on i386 and ppc64, and an earlier version of the code has received extensive testing on a number of architectures as part of the PREEMPT_RT patchset. Signed-off-by: "Paul E. McKenney" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/rcupdate.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 70191a5a148f..cce25591eec2 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -275,6 +275,7 @@ static inline int rcu_pending(int cpu) extern void rcu_init(void); extern void rcu_check_callbacks(int cpu, int user); extern void rcu_restart_cpu(int cpu); +extern long rcu_batches_completed(void); /* Exported interfaces */ extern void FASTCALL(call_rcu(struct rcu_head *head, -- cgit v1.2.3 From 4098f9918e068e51fed1727f6ba80efcec372378 Mon Sep 17 00:00:00 2001 From: Paul Jackson Date: Sun, 30 Oct 2005 15:03:21 -0800 Subject: [PATCH] sched: hardcode non-smp set_cpus_allowed Simplify the UP (1 CPU) implementatin of set_cpus_allowed. The one CPU is hardcoded to be cpu 0 - so just test for that bit, and avoid having to pick up the cpu_online_map. Also, unexport cpu_online_map: it was only needed for set_cpus_allowed(). Signed-off-by: Paul Jackson Acked-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sched.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index b2d2dc14f0b9..41285a0e7258 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -940,7 +940,7 @@ extern int set_cpus_allowed(task_t *p, cpumask_t new_mask); #else static inline int set_cpus_allowed(task_t *p, cpumask_t new_mask) { - if (!cpus_intersects(new_mask, cpu_online_map)) + if (!cpu_isset(0, new_mask)) return -EINVAL; return 0; } -- cgit v1.2.3 From 621d31219d9a788bda924a0613048053f3f5f211 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sun, 30 Oct 2005 15:03:45 -0800 Subject: [PATCH] cleanup the usage of SEND_SIG_xxx constants This patch simplifies some checks for magic siginfo values. It should not change the behaviour in any way. Signed-off-by: Oleg Nesterov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sched.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 41285a0e7258..03b68a7b4b82 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1084,6 +1084,11 @@ extern int do_sigaltstack(const stack_t __user *, stack_t __user *, unsigned lon #define SEND_SIG_PRIV ((struct siginfo *) 1) #define SEND_SIG_FORCED ((struct siginfo *) 2) +static inline int is_si_special(const struct siginfo *info) +{ + return info <= SEND_SIG_FORCED; +} + /* True if we are on the alternate signal stack. */ static inline int on_sig_stack(unsigned long sp) -- cgit v1.2.3 From 4e57b6817880946a3a78d5d8cad1ace363f7e449 Mon Sep 17 00:00:00 2001 From: Tim Schmielau Date: Sun, 30 Oct 2005 15:03:48 -0800 Subject: [PATCH] fix missing includes I recently picked up my older work to remove unnecessary #includes of sched.h, starting from a patch by Dave Jones to not include sched.h from module.h. This reduces the number of indirect includes of sched.h by ~300. Another ~400 pointless direct includes can be removed after this disentangling (patch to follow later). However, quite a few indirect includes need to be fixed up for this. In order to feed the patches through -mm with as little disturbance as possible, I've split out the fixes I accumulated up to now (complete for i386 and x86_64, more archs to follow later) and post them before the real patch. This way this large part of the patch is kept simple with only adding #includes, and all hunks are independent of each other. So if any hunk rejects or gets in the way of other patches, just drop it. My scripts will pick it up again in the next round. Signed-off-by: Tim Schmielau Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/cpufreq.h | 1 + include/linux/gameport.h | 1 + include/linux/i2c.h | 1 + include/linux/i2o.h | 8 ++++++-- include/linux/kobj_map.h | 2 ++ include/linux/mtd/map.h | 3 +++ include/linux/serial.h | 1 + include/linux/textsearch.h | 1 + 8 files changed, 16 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index ff7f80f48df1..d068176b7ad7 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -23,6 +23,7 @@ #include #include #include +#include #define CPUFREQ_NAME_LEN 16 diff --git a/include/linux/gameport.h b/include/linux/gameport.h index cd623eccdbea..2401dea2b867 100644 --- a/include/linux/gameport.h +++ b/include/linux/gameport.h @@ -12,6 +12,7 @@ #include #include #include +#include struct gameport { diff --git a/include/linux/i2c.h b/include/linux/i2c.h index f88577ca3b3a..5e19a7ba69b2 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -31,6 +31,7 @@ #include #include #include /* for struct device */ +#include /* for completion */ #include /* --- For i2c-isa ---------------------------------------------------- */ diff --git a/include/linux/i2o.h b/include/linux/i2o.h index 92300325dbcd..d79c8a4bc4f8 100644 --- a/include/linux/i2o.h +++ b/include/linux/i2o.h @@ -25,10 +25,14 @@ /* How many different OSM's are we allowing */ #define I2O_MAX_DRIVERS 8 -#include -#include /* Needed for MUTEX init macros */ #include #include +#include +#include +#include /* work_struct */ + +#include +#include /* Needed for MUTEX init macros */ /* message queue empty */ #define I2O_QUEUE_EMPTY 0xffffffff diff --git a/include/linux/kobj_map.h b/include/linux/kobj_map.h index b6cc10bf8dfc..cbe7d8008042 100644 --- a/include/linux/kobj_map.h +++ b/include/linux/kobj_map.h @@ -1,5 +1,7 @@ #ifdef __KERNEL__ +#include + typedef struct kobject *kobj_probe_t(dev_t, int *, void *); struct kobj_map; diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h index 142963f01d29..fc28841f3409 100644 --- a/include/linux/mtd/map.h +++ b/include/linux/mtd/map.h @@ -8,7 +8,10 @@ #include #include #include +#include + #include + #include #include #include diff --git a/include/linux/serial.h b/include/linux/serial.h index 12cd9cf65e8f..33fc8cb8ddfb 100644 --- a/include/linux/serial.h +++ b/include/linux/serial.h @@ -11,6 +11,7 @@ #define _LINUX_SERIAL_H #ifdef __KERNEL__ +#include #include /* diff --git a/include/linux/textsearch.h b/include/linux/textsearch.h index fc5bb4e91a58..7dac8f04d28e 100644 --- a/include/linux/textsearch.h +++ b/include/linux/textsearch.h @@ -8,6 +8,7 @@ #include #include #include +#include struct ts_config; -- cgit v1.2.3 From 451cbaa1c328082832a8fbcc427cd4416c602c5a Mon Sep 17 00:00:00 2001 From: OGAWA Hirofumi Date: Sun, 30 Oct 2005 15:03:49 -0800 Subject: [PATCH] fat: cleanup and optimization of checksum Signed-off-by: OGAWA Hirofumi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/msdos_fs.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux') diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h index 9a3d27257984..941da5c016a0 100644 --- a/include/linux/msdos_fs.h +++ b/include/linux/msdos_fs.h @@ -282,6 +282,17 @@ static inline u8 fat_attr(struct inode *inode) MSDOS_I(inode)->i_attrs; } +static inline unsigned char fat_checksum(const __u8 *name) +{ + unsigned char s = name[0]; + s = (s<<7) + (s>>1) + name[1]; s = (s<<7) + (s>>1) + name[2]; + s = (s<<7) + (s>>1) + name[3]; s = (s<<7) + (s>>1) + name[4]; + s = (s<<7) + (s>>1) + name[5]; s = (s<<7) + (s>>1) + name[6]; + s = (s<<7) + (s>>1) + name[7]; s = (s<<7) + (s>>1) + name[8]; + s = (s<<7) + (s>>1) + name[9]; s = (s<<7) + (s>>1) + name[10]; + return s; +} + static inline sector_t fat_clus_to_blknr(struct msdos_sb_info *sbi, int clus) { return ((sector_t)clus - FAT_START_ENT) * sbi->sec_per_clus -- cgit v1.2.3 From 913ade51eca369553a8ffbdaf1f426fade84f6ae Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 31 Oct 2005 13:53:26 +0000 Subject: [SERIAL] Fix port numbering The PORT_* macros must be uniquely numbered. This fixes the definitions. Signed-off-by: Russell King --- include/linux/serial_core.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 2b0401b93f2b..9d2579230689 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -39,8 +39,7 @@ #define PORT_RSA 13 #define PORT_NS16550A 14 #define PORT_XSCALE 15 -#define PORT_IP3106 16 -#define PORT_MAX_8250 16 /* max port ID */ +#define PORT_MAX_8250 15 /* max port ID */ /* * ARM specific type numbers. These are not currently guaranteed @@ -118,7 +117,9 @@ #define PORT_M32R_SIO 68 /*Digi jsm */ -#define PORT_JSM 65 +#define PORT_JSM 69 + +#define PORT_IP3106 70 #ifdef __KERNEL__ -- cgit v1.2.3 From 6b7d31fcdda5938e5d3f1f8b0922cc25aa200dfc Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Wed, 26 Oct 2005 09:34:24 +0200 Subject: [NETFILTER]: Add "revision" support to arp_tables and ip6_tables Like ip_tables already has it for some time, this adds support for having multiple revisions for each match/target. We steal one byte from the name in order to accomodate a 8 bit version number. Signed-off-by: Harald Welte Signed-off-by: Arnaldo Carvalho de Melo --- include/linux/netfilter_arp/arp_tables.h | 20 +++++++++++++++++--- include/linux/netfilter_ipv6/ip6_tables.h | 27 ++++++++++++++++++++++----- 2 files changed, 39 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netfilter_arp/arp_tables.h b/include/linux/netfilter_arp/arp_tables.h index d759a637bded..e98a870a20be 100644 --- a/include/linux/netfilter_arp/arp_tables.h +++ b/include/linux/netfilter_arp/arp_tables.h @@ -68,7 +68,8 @@ struct arpt_entry_target u_int16_t target_size; /* Used by userspace */ - char name[ARPT_FUNCTION_MAXNAMELEN]; + char name[ARPT_FUNCTION_MAXNAMELEN-1]; + u_int8_t revision; } user; struct { u_int16_t target_size; @@ -148,7 +149,9 @@ struct arpt_entry #define ARPT_SO_GET_INFO (ARPT_BASE_CTL) #define ARPT_SO_GET_ENTRIES (ARPT_BASE_CTL + 1) -#define ARPT_SO_GET_MAX ARPT_SO_GET_ENTRIES +/* #define ARPT_SO_GET_REVISION_MATCH (ARPT_BASE_CTL + 2)*/ +#define ARPT_SO_GET_REVISION_TARGET (ARPT_BASE_CTL + 3) +#define ARPT_SO_GET_MAX ARPT_SO_GET_REVISION_TARGET /* CONTINUE verdict for targets */ #define ARPT_CONTINUE 0xFFFFFFFF @@ -236,6 +239,15 @@ struct arpt_get_entries struct arpt_entry entrytable[0]; }; +/* The argument to ARPT_SO_GET_REVISION_*. Returns highest revision + * kernel supports, if >= revision. */ +struct arpt_get_revision +{ + char name[ARPT_FUNCTION_MAXNAMELEN-1]; + + u_int8_t revision; +}; + /* Standard return verdict, or do jump. */ #define ARPT_STANDARD_TARGET "" /* Error verdict. */ @@ -274,7 +286,9 @@ struct arpt_target { struct list_head list; - const char name[ARPT_FUNCTION_MAXNAMELEN]; + const char name[ARPT_FUNCTION_MAXNAMELEN-1]; + + u_int8_t revision; /* Returns verdict. */ unsigned int (*target)(struct sk_buff **pskb, diff --git a/include/linux/netfilter_ipv6/ip6_tables.h b/include/linux/netfilter_ipv6/ip6_tables.h index 59f70b34e029..2efc046d9e94 100644 --- a/include/linux/netfilter_ipv6/ip6_tables.h +++ b/include/linux/netfilter_ipv6/ip6_tables.h @@ -57,7 +57,8 @@ struct ip6t_entry_match u_int16_t match_size; /* Used by userspace */ - char name[IP6T_FUNCTION_MAXNAMELEN]; + char name[IP6T_FUNCTION_MAXNAMELEN-1]; + u_int8_t revision; } user; struct { u_int16_t match_size; @@ -80,7 +81,8 @@ struct ip6t_entry_target u_int16_t target_size; /* Used by userspace */ - char name[IP6T_FUNCTION_MAXNAMELEN]; + char name[IP6T_FUNCTION_MAXNAMELEN-1]; + u_int8_t revision; } user; struct { u_int16_t target_size; @@ -161,7 +163,9 @@ struct ip6t_entry #define IP6T_SO_GET_INFO (IP6T_BASE_CTL) #define IP6T_SO_GET_ENTRIES (IP6T_BASE_CTL + 1) -#define IP6T_SO_GET_MAX IP6T_SO_GET_ENTRIES +#define IP6T_SO_GET_REVISION_MATCH (IP6T_BASE_CTL + 2) +#define IP6T_SO_GET_REVISION_TARGET (IP6T_BASE_CTL + 3) +#define IP6T_SO_GET_MAX IP6T_SO_GET_REVISION_TARGET /* CONTINUE verdict for targets */ #define IP6T_CONTINUE 0xFFFFFFFF @@ -291,6 +295,15 @@ struct ip6t_get_entries struct ip6t_entry entrytable[0]; }; +/* The argument to IP6T_SO_GET_REVISION_*. Returns highest revision + * kernel supports, if >= revision. */ +struct ip6t_get_revision +{ + char name[IP6T_FUNCTION_MAXNAMELEN-1]; + + u_int8_t revision; +}; + /* Standard return verdict, or do jump. */ #define IP6T_STANDARD_TARGET "" /* Error verdict. */ @@ -352,7 +365,9 @@ struct ip6t_match { struct list_head list; - const char name[IP6T_FUNCTION_MAXNAMELEN]; + const char name[IP6T_FUNCTION_MAXNAMELEN-1]; + + u_int8_t revision; /* Return true or false: return FALSE and set *hotdrop = 1 to force immediate packet drop. */ @@ -387,7 +402,9 @@ struct ip6t_target { struct list_head list; - const char name[IP6T_FUNCTION_MAXNAMELEN]; + const char name[IP6T_FUNCTION_MAXNAMELEN-1]; + + u_int8_t revision; /* Returns verdict. Argument order changed since 2.6.9, as this must now handle non-linear skbs, using skb_copy_bits and -- cgit v1.2.3 From a362357b6cd62643d4dda3b152639303d78473da Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 1 Nov 2005 09:26:16 +0100 Subject: [BLOCK] Unify the seperate read/write io stat fields into arrays Instead of having ->read_sectors and ->write_sectors, combine the two into ->sectors[2] and similar for the other fields. This saves a branch several places in the io path, since we don't have to care for what the actual io direction is. On my x86-64 box, that's 200 bytes less text in just the core (not counting the various drivers). Signed-off-by: Jens Axboe --- include/linux/genhd.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/genhd.h b/include/linux/genhd.h index eabdb5cce357..8eeaa53a68c9 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -78,7 +78,7 @@ struct hd_struct { sector_t start_sect; sector_t nr_sects; struct kobject kobj; - unsigned reads, read_sectors, writes, write_sectors; + unsigned ios[2], sectors[2]; int policy, partno; }; @@ -89,10 +89,10 @@ struct hd_struct { #define GENHD_FL_SUPPRESS_PARTITION_INFO 32 struct disk_stats { - unsigned read_sectors, write_sectors; - unsigned reads, writes; - unsigned read_merges, write_merges; - unsigned read_ticks, write_ticks; + unsigned sectors[2]; + unsigned ios[2]; + unsigned merges[2]; + unsigned ticks[2]; unsigned io_ticks; unsigned time_in_queue; }; -- cgit v1.2.3 From 2407534f8be8015d585104bcc4374870b6b70fe7 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 1 Nov 2005 16:52:11 -0800 Subject: [ETHERNET]: Optimize is_broadcast_ether_addr Optimize the match for broadcast address by using bit operations instead of comparison. This saves a number of conditional branches, and generates smaller code. Signed-off-by: Stephen Hemminger Signed-off-by: Arnaldo Carvalho de Melo --- include/linux/etherdevice.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index cc84934f9059..17460c85df7b 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -71,8 +71,7 @@ static inline int is_multicast_ether_addr(const u8 *addr) static inline int is_broadcast_ether_addr(const u8 *addr) { - return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) && - (addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff)); + return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff; } /** -- cgit v1.2.3 From c2da8acaf488b8651edfb04ebf3ab089f3a7830f Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 1 Nov 2005 17:05:09 -0800 Subject: [ETHERNET]: Add ether stuff to docbook Fix up etherdevice docbook comments and make them (and other networking stuff) get dragged into the kernel-api. Delete the old 8390 stuff, it really isn't interesting anymore. Signed-off-by: Stephen Hemminger Signed-off-by: Arnaldo Carvalho de Melo --- include/linux/etherdevice.h | 24 +++++++++++++++--------- 1 file changed, 15 insertions(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index 17460c85df7b..5f49a30eb6f2 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -48,8 +48,10 @@ static inline void eth_copy_and_sum (struct sk_buff *dest, } /** - * is_zero_ether_addr - Determine if give Ethernet address is all - * zeros. + * is_zero_ether_addr - Determine if give Ethernet address is all zeros. + * @addr: Pointer to a six-byte array containing the Ethernet address + * + * Return true if the address is all zeroes. */ static inline int is_zero_ether_addr(const u8 *addr) { @@ -57,9 +59,7 @@ static inline int is_zero_ether_addr(const u8 *addr) } /** - * is_multicast_ether_addr - Determine if the given Ethernet address is a - * multicast address. - * + * is_multicast_ether_addr - Determine if the Ethernet address is a multicast. * @addr: Pointer to a six-byte array containing the Ethernet address * * Return true if the address is a multicast address. @@ -69,6 +69,12 @@ static inline int is_multicast_ether_addr(const u8 *addr) return ((addr[0] != 0xff) && (0x01 & addr[0])); } +/** + * is_broadcast_ether_addr - Determine if the Ethernet address is broadcast + * @addr: Pointer to a six-byte array containing the Ethernet address + * + * Return true if the address is the broadcast address. + */ static inline int is_broadcast_ether_addr(const u8 *addr) { return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff; @@ -107,14 +113,14 @@ static inline void random_ether_addr(u8 *addr) /** * compare_ether_addr - Compare two Ethernet addresses * @addr1: Pointer to a six-byte array containing the Ethernet address - * @addr2 Pointer other six-byte array containing the Ethernet address + * @addr2: Pointer other six-byte array containing the Ethernet address * * Compare two ethernet addresses, returns 0 if equal */ -static inline unsigned compare_ether_addr(const u8 *_a, const u8 *_b) +static inline unsigned compare_ether_addr(const u8 *addr1, const u8 *addr2) { - const u16 *a = (const u16 *) _a; - const u16 *b = (const u16 *) _b; + const u16 *a = (const u16 *) addr1; + const u16 *b = (const u16 *) addr2; BUILD_BUG_ON(ETH_ALEN != 6); return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) != 0; -- cgit v1.2.3 From 436d7d3060fdeca91d0dd67a9ae21d4915f1410f Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Thu, 3 Nov 2005 13:50:05 +1100 Subject: [XFS] Update XFS quota header license to match the SGI boilerplate. Signed-off-by: Nathan Scott --- include/linux/dqblk_xfs.h | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dqblk_xfs.h b/include/linux/dqblk_xfs.h index cb31719ee192..c90997d9cc1e 100644 --- a/include/linux/dqblk_xfs.h +++ b/include/linux/dqblk_xfs.h @@ -1,22 +1,18 @@ /* * Copyright (c) 1995-2001,2004 Silicon Graphics, Inc. All Rights Reserved. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2.1 of the GNU Lesser General Public License + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation. * * 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. + * GNU Lesser 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 - * - * Contact information: Silicon Graphics, Inc., 1500 Crittenden Lane, - * Mountain View, CA 94043, USA, or: http://www.sgi.com + * You should have received a copy of the GNU Lesset General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef _LINUX_DQBLK_XFS_H #define _LINUX_DQBLK_XFS_H -- cgit v1.2.3 From a2f8e178ad3e576d107f5d9d47c056dd57221857 Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Thu, 3 Nov 2005 13:51:23 +1100 Subject: [XFS] Add the project quota type into the XFS quota header. Signed-off-by: Nathan Scott --- include/linux/dqblk_xfs.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/dqblk_xfs.h b/include/linux/dqblk_xfs.h index c90997d9cc1e..6ad85bbd0d17 100644 --- a/include/linux/dqblk_xfs.h +++ b/include/linux/dqblk_xfs.h @@ -28,7 +28,8 @@ #define XQM_USRQUOTA 0 /* system call user quota type */ #define XQM_GRPQUOTA 1 /* system call group quota type */ -#define XQM_MAXQUOTAS 2 +#define XQM_PRJQUOTA 2 /* system call project quota type */ +#define XQM_MAXQUOTAS 3 #define Q_XQUOTAON XQM_CMD(1) /* enable accounting/enforcement */ #define Q_XQUOTAOFF XQM_CMD(2) /* disable accounting/enforcement */ -- cgit v1.2.3 From de69e5f44ecbf1d9faca4f473f4210473d26cd41 Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Thu, 3 Nov 2005 13:53:34 +1100 Subject: [XFS] Add a mechanism for XFS to use the generic quota sync method. This is now used to issue a delayed allocation flush before reporting quota, which allows the used space quota report to match reality. Signed-off-by: Nathan Scott --- include/linux/dqblk_xfs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/dqblk_xfs.h b/include/linux/dqblk_xfs.h index 6ad85bbd0d17..2fda1b2aabd9 100644 --- a/include/linux/dqblk_xfs.h +++ b/include/linux/dqblk_xfs.h @@ -37,6 +37,7 @@ #define Q_XSETQLIM XQM_CMD(4) /* set disk limits */ #define Q_XGETQSTAT XQM_CMD(5) /* get quota subsystem status */ #define Q_XQUOTARM XQM_CMD(6) /* free disk space used by dquots */ +#define Q_XQUOTASYNC XQM_CMD(7) /* delalloc flush, updates dquots */ /* * fs_disk_quota structure: -- cgit v1.2.3 From d530838bfa507d67b40d13b00d9cbd7a46a47e78 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 4 Nov 2005 15:33:38 -0500 Subject: NFSv4: Fix problem with OPEN_DOWNGRADE RFC 3530 states that for OPEN_DOWNGRADE "The share_access and share_deny bits specified must be exactly equal to the union of the share_access and share_deny bits specified for some subset of the OPENs in effect for current openowner on the current file. Setattr is currently violating the NFSv4 rules for OPEN_DOWNGRADE in that it may cause a downgrade from OPEN4_SHARE_ACCESS_BOTH to OPEN4_SHARE_ACCESS_WRITE despite the fact that there exists no open file with O_WRONLY access mode. Fix the problem by replacing nfs4_find_state() with a modified version of nfs_find_open_context(). Signed-off-by: Trond Myklebust --- include/linux/nfs_fs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 325fe7ae49bb..12787a9b0259 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -316,7 +316,7 @@ extern struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, st extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx); extern void put_nfs_open_context(struct nfs_open_context *ctx); extern void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx); -extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, int mode); +extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode); extern void nfs_file_clear_open_context(struct file *filp); /* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */ -- cgit v1.2.3 From 7015faa7df829876a0f931cd18aa6d7c24a1b581 Mon Sep 17 00:00:00 2001 From: "Calin A. Culianu" Date: Fri, 4 Nov 2005 20:38:04 -0500 Subject: [PATCH] nvidiafb: Geforce 7800 series support added This adds support for the Nvidia Geforce 7800 series of cards to the nvidiafb framebuffer driver. All it does is add the PCI device id for the 7800, 7800 GTX, 7800 GO, and 7800 GTX GO cards to the module device table for the nvidiafb.ko driver, so that nvidiafb.ko will actually work on these cards. I also added the relevant PCI device ids to linux/pci_ids.h I tested it on my 7800 GTX here and it works like a charm. I now can get framebuffer support on this card! Woo hoo!! Nothing like 200x75 text mode to make your eyes BLEED. ;) Signed-off-by: Linus Torvalds --- include/linux/pci_ids.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 56192005fa4d..88de3f8ce1a2 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -990,6 +990,10 @@ #define PCI_DEVICE_ID_NVIDIA_CK8_AUDIO 0x008a #define PCI_DEVICE_ID_NVIDIA_NVENET_5 0x008c #define PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA 0x008e +#define PCI_DEVICE_ID_NVIDIA_GEFORCE_7800_GT 0x0090 +#define PCI_DEVICE_ID_NVIDIA_GEFORCE_7800_GTX 0x0091 +#define PCI_DEVICE_ID_NVIDIA_GEFORCE_GO_7800 0x0098 +#define PCI_DEVICE_ID_NVIDIA_GEFORCE_GO_7800_GTX 0x0099 #define PCI_DEVICE_ID_NVIDIA_ITNT2 0x00A0 #define PCI_DEVICE_ID_GEFORCE_6800A 0x00c1 #define PCI_DEVICE_ID_GEFORCE_6800A_LE 0x00c2 -- cgit v1.2.3