summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2009-07-08tty: maintainers data was edited wrongly by someoneAlan Cox
Move tty entries to tty not trivial. Noted by David Brownell. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08pty: Rework the pty layer to use the normal buffering logicAlan Cox
This fixes the ppp problems and various other issues with call locking caused by one side of a pty called in one locking context trying to match another with differing rules on the other side. We also get a big slack space to work with that means we can bury the flow control deadlock case for any conceivable real world situation. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Powernow-k8: support family 0xf with 2 low p-states [CPUFREQ] fix (utter) cpufreq_add_dev mess [CPUFREQ] Cleanup locking in conservative governor [CPUFREQ] Cleanup locking in ondemand governor [CPUFREQ] Mark policy_rwsem as going static in cpufreq.c wont be exported [CPUFREQ] Eliminate the recent lockdep warnings in cpufreq
2009-07-08Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6: quota: Fix possible deadlock during parallel quotaon and quotaoff
2009-07-08Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM: Clear -EAGAIN in dpm_prepare x86: Fix resume from suspend when CONFIG_CC_STACKPROTECTOR
2009-07-08intel-iommu: Fix intel_iommu_unmap_range() with size 0Sheng Yang
After some API change, intel_iommu_unmap_range() introduced a assumption that parameter size != 0, otherwise the dma_pte_clean_range() would have a overflowed argument. But the user like KVM don't have this assumption before, then some BUG() triggered. Fix it by ignoring size = 0. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08Free struct device in fw_dev_release()Catalin Marinas
The f_dev in _request_firmware() is allocated via the fw_setup_device() and fw_register_device() calls and its class set to firmware_class (the class release function is fw_dev_release). Commit 6acf70f078ca replaced the kfree(dev) in fw_dev_release() with a put_device() call but my understanding is that the release function is called via put_device -> kobject_put -> kref_put -> koject_release etc. and it should call kfree since it's the last to see this device structure alive. Because of that, the _request_firmware() function on its -ENOENT error path only calls device_unregister(f_dev) which would eventually call fw_dev_release() but there is no kfree (the subsequent put_device call would just make the kref negative). Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08Free the memory allocated by memdup_user() in fs/sysfs/bin.cCatalin Marinas
Commit 1c8542c7bb replaced kmalloc() with memdup_user() in the write() function but also dropped the kfree(temp). The memdup_user() function allocates memory which is never freed. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Parag Warudkar <parag.warudkar@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: gpio_mouse - use standard driver registration method Input: mark serio and i8042 as suspended when hibernating too Input: add support for generic GPIO-based matrix keypad Input: arrange keyboards alphabetically Input: gpio-keys - avoid possibility of sleeping in timer function Input: gpio-keys - revert 'change timer to workqueue' Input: dm355evm_keys - fix kconfig symbol names Input: wacom - add DTF720a support and fix rotation on Intuos3 Input: i8042 - more reset quirks for MSI Wind-clone netbooks
2009-07-08Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Don't use alloc_bootmem() in init_IRQ() path powerpc: Fix spin_event_timeout() to be robust over context switches powerpc: Use pr_devel() in do_dcache_icache_coherency() powerpc/cell: Use pr_devel() in axon_msi.c powerpc: Use pr_devel() in arch/powerpc/mm/gup.c powerpc: Cleanup & use pr_devel() in arch/powerpc/mm/slb.c powerpc/perf_counter: Remove duplicated #include powerpc: Use pr_devel() in arch/powerpc/mm/mmu_context_nohash.c powerpc/pseries: Use pr_devel() in xics.c powerpc: Remove unnecessary semicolons powerpc/pseries: Use pr_devel() in pseries LPAR HPTE routines powerpc/44x: Fix build error with -Werror for Warp platform powerpc/4xx: Have Warp take advantage of GPIO LEDs default-state = keep powerpc/44x: Update Warp defconfig
2009-07-08headers: mnt_namespace.h reduxAlexey Dobriyan
Fix various silly problems wrt mnt_namespace.h: - exit_mnt_ns() isn't used, remove it - done that, sched.h and nsproxy.h inclusions aren't needed - mount.h inclusion was need for vfsmount_lock, but no longer - remove mnt_namespace.h inclusion from files which don't use anything from mnt_namespace.h Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08Merge branch 'sh/for-2.6.31' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: serial: sh-sci: fix sci interrupt handler video: hitfb: Move over to dev_pm_ops. video: hitfb: Convert to framebuffer_alloc(). video: sh_mobile_lcdcfb: Convert to framebuffer_alloc(). sh: add r8a66597 usb0 host to the se7724 board usb: allow sh7724 to enable on-chip r8a66597 sh-sci: update receive error handling for muxed irqs sh: define PERF_COUNTER_INDEX_OFFSET.
2009-07-08Revert "fb: Initialize fb_info mutexes in framebuffer_alloc()"Linus Torvalds
This reverts commit 4148df9b0f38bdd362dd91d52076926c11cbe5a9. Let's hope that the mm_lock initialization is now correct with all drivers, following Krzysztof's patches. Requested-by: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08matroxfb: fix regression with uninitalized fb_info->mm_lock mutex (second head)Krzysztof Helt
Remove redundant locking by the mm_lock mutex before a second head of matrox framebuffer is registered. This fixes a problem with uninitialized the fb_info->mm_lock mutex introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap locking" Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08matroxfb: fix regression with uninitalized fb_info->mm_lock mutexKrzysztof Helt
Remove redundant call to the matroxfb_update_fix() before matrox frambuffer is registered. This fixes a problem with uninitialized the fb_info->mm_lock mutex introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap locking" Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08w100fb: fix regression with uninitalized fb_info->mm_lock mutexKrzysztof Helt
Remove redundant call to the w100fb_set_par() before w100 frambuffer is registered. This fixes a problem with uninitialized the fb_info->mm_lock mutex introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap locking" Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08atafb: fix regression with uninitalized fb_info->mm_lock mutexKrzysztof Helt
Remove redundant locking of the fb_info->mm_lock mutex before the frambuffer is registered. This fixes a problem with uninitialized the fb_info->mm_lock mutex introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap locking" Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08i810fb: fix regression with uninitalized fb_info->mm_lock mutexKrzysztof Helt
Remove redundant call to the encode_fix() before i810 frambuffer is registered. This fixes a problem with uninitialized the fb_info->mm_lock mutex introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap locking" Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08elfcore.h : Fix UML build breakageParag Warudkar
Commit a65e7bfcd74e4c0939f235d2bf9f48ddb3a57991 broke the UML build with the following error - In file included from fs/proc/kcore.c:17: include/linux/elfcore.h: In function 'elf_core_copy_task_regs': include/linux/elfcore.h:129: error: implicit declaration of function 'task_pt_regs' Fix this by restoring the previous behavior of returning 0 for all arches like UML that don't define task_pt_regs. Signed-off-by: Parag Warudkar <parag.lkml@gmail.com> Acked-by: Amerigo Wang <xiyou.wangcong@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-08PM: Clear -EAGAIN in dpm_prepareSebastian Ott
When the last device in the dpm list is unregistered directly after its prepare() callback returned with -EAGAIN, the return code is passed to the calling function, resulting in a suspend failure. Prevent this by clearing the return code after -EAGAIN. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-07-08x86: Fix resume from suspend when CONFIG_CC_STACKPROTECTORPeter Chubb
Patch 08687aec71bc9134fe336e561f6did877bacf74fc0a (x86: unify power/cpu_(32|64).c) renamed cpu_32.c to cpu.c, but did not update the special compilation flags for the file for the new name. This patch fixes the compilation flags, and therefore fixes resume from suspend on my Acer Aspire One. [rjw: The regression from 2.6.30 fixed by this patch is tracked as http://bugzilla.kernel.org/show_bug.cgi?id=13661] Signed-off-by: Peter Chubb <peterc@nicta.com.au> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-07-07Input: gpio_mouse - use standard driver registration methodSaeed Bishara
This patch is needed when the gpio's became available only at late stages, for example, when using i2c gpio expander. Signed-off-by: Saeed Bishara <saeed@marvell.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-07-07Input: mark serio and i8042 as suspended when hibernating tooThadeu Lima de Souza Cascardo
Serio ports are not being restarted any longer because resume operations after hibernate do nothing, since the device has not been marked as suspended. This happens because suspend is only considering the SUSPEND event but not the FREEZE event. Note that this driver has still to migrate to dev_pm_ops, but this fixes this particular bug now. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-07-08powerpc: Don't use alloc_bootmem() in init_IRQ() pathAnton Vorontsov
This patch fixes various badnesses like this for all interrupt controllers: ------------[ cut here ]------------ Badness at c04db9dc [verbose debug info unavailable] NIP: c04db9dc LR: c04db9ac CTR: 00000000 REGS: c053de30 TRAP: 0700 Not tainted (2.6.31-rc1-00432-ge69b2b5-dirty) MSR: 00021000 <ME,CE> CR: 22020084 XER: 00000000 TASK = c0500480[0] 'swapper' THREAD: c053c000 GPR00: 00000001 c053dee0 c0500480 00000000 00000050 00000020 3fffffff 00000000 GPR08: 00000001 c0540000 e0080080 00000000 22000084 64183600 3ff8f800 00000000 GPR16: 841b0240 449a0303 00000000 00000000 00000000 00000000 00000000 c04f5bf4 GPR24: 00000000 00000000 00000000 00000050 00000020 00000000 3fffffff 00000050 NIP [c04db9dc] alloc_arch_preferred_bootmem+0x48/0x74 LR [c04db9ac] alloc_arch_preferred_bootmem+0x18/0x74 Call Trace: [c053dee0] [c000a5a4] __of_address_to_resource+0x44/0xd0 (unreliable) [c053def0] [c04dba58] ___alloc_bootmem_nopanic+0x50/0x108 [c053df20] [c04dbb28] ___alloc_bootmem+0x18/0x50 [c053df30] [c04d5de0] qe_ic_init+0x5c/0x1b0 [c053df70] [c04d77b0] mpc85xx_mds_pic_init+0xb8/0x10c [c053dfb0] [c04cf374] init_IRQ+0x28/0x3c p.s. commit 85355bb272db31a3f2dd99d547eef794805e1319 ("powerpc: Fix mpic alloc warning") missed some alloc_bootmem() instances, this is now fixed. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc: Fix spin_event_timeout() to be robust over context switchesGrant Likely
Current implementation of spin_event_timeout can be interrupted by an IRQ or context switch after testing the condition, but before checking the timeout. This can cause the loop to report a timeout when the condition actually became true in the middle. This patch adds one final check of the condition upon exit of the loop if the last test of the condition was still false. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc: Use pr_devel() in do_dcache_icache_coherency()Michael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 2036 368 8 2412 96c arch/powerpc/mm/pgtable.o size after: text data bss dec hex filename 1677 248 8 1933 78d arch/powerpc/mm/pgtable.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc/cell: Use pr_devel() in axon_msi.cMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 7083 1616 0 8699 21fb arch/powerpc/../axon_msi.o size after: text data bss dec hex filename 5772 1208 0 6980 1b44 arch/powerpc/../axon_msi.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc: Use pr_devel() in arch/powerpc/mm/gup.cMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 3252 384 0 3636 e34 arch/powerpc/mm/gup.o size after: text data bss dec hex filename 2576 96 0 2672 a70 arch/powerpc/mm/gup.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc: Cleanup & use pr_devel() in arch/powerpc/mm/slb.cMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 3261 416 4 3681 e61 arch/powerpc/mm/slb.o size after: text data bss dec hex filename 2861 248 4 3113 c29 arch/powerpc/mm/slb.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc/perf_counter: Remove duplicated #includeHuang Weiyi
Remove duplicated #include('s) in arch/powerpc/kernel/mpc7450-pmu.c arch/powerpc/kernel/ppc970-pmu.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc: Use pr_devel() in arch/powerpc/mm/mmu_context_nohash.cMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 1508 48 28 1584 630 powerpc/mm/mmu_context_nohash.o size after: text data bss dec hex filename 1088 0 28 1116 45c powerpc/mm/mmu_context_nohash.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc/pseries: Use pr_devel() in xics.cMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 7720 5488 296 13504 34c0 platforms/pseries/xics.o size after: text data bss dec hex filename 7535 5456 296 13287 33e7 platforms/pseries/xics.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc: Remove unnecessary semicolonsJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08powerpc/pseries: Use pr_devel() in pseries LPAR HPTE routinesMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. In particular, pSeries_lpar_hpte_insert() goes from 185 instructions to 77 instructions as a result of this patch. Luckily that code isn't called very often ... With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 7284 1552 296 9132 23ac platforms/pseries/lpar.o size after: text data bss dec hex filename 5806 1096 296 7198 1c1e platforms/pseries/lpar.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08Merge commit 'jwb/merge' into mergeBenjamin Herrenschmidt
2009-07-07quota: Fix possible deadlock during parallel quotaon and quotaoffJiaying Zhang
The following test script triggers a deadlock on ext2 filesystem: while true; do quotaon /dev/hda >&/dev/null; usleep $RANDOM; done & while true; do quotaoff /dev/hda >&/dev/null; usleep $RANDOM; done & I found there is a potential deadlock between quotaon and quotaoff (or quotasync). Basically, all of quotactl operations need to be protected by dqonoff_mutex. vfs_quota_off and vfs_quota_sync also call sb->s_op->quota_write that needs to grab the i_mutex of the quota file. But in vfs_quota_on_inode (called from quotaon operation), the current code tries to grab the i_mutex of the quota file first before getting quonoff_mutex. Reverse the order in which we take locks in vfs_quota_on_inode(). Jan Kara: Changed changelog to be more readable, made lockdep happy with I_MUTEX_QUOTA. Signed-off-by: Jiaying Zhang <jiayingz@google.com> Signed-off-by: Jan Kara <jack@suse.cz>
2009-07-07serial: sh-sci: fix sci interrupt handlerSUGIOKA Toshinobu
Fix up the error bit handling on SCI ports. Signed-off-by: SUGIOKA Toshinobu <sugioka@itonet.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-07Merge branch 'master' of ↵Paul Mundt
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh/for-2.6.31
2009-07-07video: hitfb: Move over to dev_pm_ops.Paul Mundt
A trivial update to move hitfb over to dev_pm_ops. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-07video: hitfb: Convert to framebuffer_alloc().Paul Mundt
Follows the sh_mobile_lcdcfb change. Also fixes up a memory leak with cmap allocation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-07video: sh_mobile_lcdcfb: Convert to framebuffer_alloc().Paul Mundt
All fb_info structures need to be allocated with framebuffer_alloc() due to special initialization. Switch over to it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-06[CPUFREQ] Powernow-k8: support family 0xf with 2 low p-statesMark Langsdorf
Provide support for family 0xf processors with 2 P-states below the elevator voltage. Remove the checks that prevent this configuration from being supported and increase the transition voltage to prevent errors during the transition. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
2009-07-06[CPUFREQ] fix (utter) cpufreq_add_dev messMathieu Desnoyers
OK, I've tried to clean it up the best I could, but please test this with concurrent cpu hotplug and cpufreq add/remove in loops. I'm sure we will make other interesting findings. This is step one of fixing the overall locking dependency mess in cpufreq. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> CC: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> CC: rjw@sisk.pl CC: mingo@elte.hu CC: Shaohua Li <shaohua.li@intel.com> CC: Pekka Enberg <penberg@cs.helsinki.fi> CC: Dave Young <hidave.darkstar@gmail.com> CC: "Rafael J. Wysocki" <rjw@sisk.pl> CC: Rusty Russell <rusty@rustcorp.com.au> CC: sven.wegener@stealer.net CC: cpufreq@vger.kernel.org CC: Thomas Renninger <trenn@suse.de> Signed-off-by: Dave Jones <davej@redhat.com>
2009-07-06[CPUFREQ] Cleanup locking in conservative governorvenkatesh.pallipadi@intel.com
Redesign the locking inside conservative driver. Make dbs_mutex handle all the global state changes inside the driver and invent a new percpu mutex to serialize percpu timer and frequency limit change. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2009-07-06[CPUFREQ] Cleanup locking in ondemand governorvenkatesh.pallipadi@intel.com
Redesign the locking inside ondemand driver. Make dbs_mutex handle all the global state changes inside the driver and invent a new percpu mutex to serialize percpu timer and frequency limit change. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2009-07-06[CPUFREQ] Mark policy_rwsem as going static in cpufreq.c wont be exportedvenkatesh.pallipadi@intel.com
lock_policy_rwsem_* and unlock_policy_rwsem_* routines in cpufreq.c are currently exported to drivers. Improper use of those locks can result in deadlocks and it is better to keep the locks localized. Two previous in-kernel users of these interfaces (ondemand and conservative), do not use this interfaces any more. Schedule them for removal. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2009-07-06[CPUFREQ] Eliminate the recent lockdep warnings in cpufreqvenkatesh.pallipadi@intel.com
Commit b14893a62c73af0eca414cfed505b8c09efc613c although it was very much needed to properly cleanup ondemand timer, opened-up a can of worms related to locking dependencies in cpufreq. Patch here defines the need for dbs_mutex and cleans up its usage in ondemand governor. This also resolves the lockdep warnings reported here http://lkml.indiana.edu/hypermail/linux/kernel/0906.1/01925.html http://lkml.indiana.edu/hypermail/linux/kernel/0907.0/00820.html and few others.. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
2009-07-06Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: fix usage of bios intcall() x86: Remove unused function lapic_watchdog_ok() x86: Remove unused variable disable_x2apic x86, kvm: Fix section mismatches in kvm.c x86: Add missing annotation to arch/x86/lib/copy_user_64.S::copy_to_user x86: Fix fixmap page order for FIX_TEXT_POKE0,1 amd-iommu: set evt_buf_size correctly amd-iommu: handle alias entries correctly in init code x86: Fix printk call in print_local_apic() x86: Declare check_efer() before it gets used x86: Mark device_nb as static and fix NULL noise x86: Remove double declaration of MSR_P6_EVNTSEL0 and MSR_P6_EVNTSEL1 xen: Use kcalloc() in xen_init_IRQ() x86: Fix fixmap ordering x86: Fix symbol annotation for arch/x86/lib/clear_page_64.S::clear_page_c
2009-07-06Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] amba: fix amba device resources [ARM] pgtable: file pte layout documentation [ARM] pgtable: swp pte layout documentation, definitions, and check [ARM] export __cpu_flush_dcache_page [ARM] 5576/1: Update kb9202_defconfig [ARM] 5581/1: U300 clock updates [ARM] 5579/1: Updated U300 defconfig
2009-07-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6: Revert "ide: improve handling of Power Management requests"
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-15 23:33:56 +0000