linux/arch
Akinobu Mita ef1d7151d2 cpu hotplug: intel_cacheinfo: fix cpu hotplug error handling
- Fix resource leakage in error case within detect_cache_attributes()

- Don't register hotcpu notifier when cache_add_dev() returns error

- Introduce cache_dev_map cpumask to track whether cache interface for
  CPU is successfully added by cache_add_dev() or not.

  cache_add_dev() may fail with out of memory error. In order to
  avoid cache_remove_dev() with that uninitialized cache interface when
  CPU_DEAD event is delivered we need to have the cache_dev_map cpumask.

  (We cannot change cache_add_dev() from CPU_ONLINE event handler
  to CPU_UP_PREPARE event handler. Because cache_add_dev() needs
  to do cpuid and store the results with its CPU online.)

[nix.or.die@googlemail.com: fix a section mismatch warning]
Cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Andi Kleen <ak@suse.de>
Cc: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Gabriel Craciunescu <nix.or.die@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 14:37:21 -07:00
..
alpha Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00
arm PM: Rework struct platform_suspend_ops 2007-10-18 14:37:18 -07:00
avr32 Remove dma_cache_(wback|inv|wback_inv) functions 2007-10-17 08:42:57 -07:00
blackfin PM: Rework struct platform_suspend_ops 2007-10-18 14:37:18 -07:00
cris remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
frv remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
h8300 remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
i386 .gitignore update for x86 arch 2007-10-17 21:19:04 +02:00
ia64 Fix discrepancy between VDSO based gettimeofday() and sys_gettimeofday(). 2007-10-18 14:37:20 -07:00
m32r remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
m68k remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
m68knommu remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
mips [MIPS] IP22: Fix hang due to messing with timer interrupt handler 2007-10-17 18:28:49 +01:00
parisc Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00
powerpc serial: turn serial console suspend a boot rather than compile time option 2007-10-18 14:37:19 -07:00
ppc Merge branch 'for-2.6.24' of git://git.secretlab.ca/git/linux-2.6-mpc52xx into merge 2007-10-17 22:31:13 +10:00
s390 remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
sh PM: Rename struct pm_ops and related things 2007-10-18 14:37:18 -07:00
sh64 Remove dma_cache_(wback|inv|wback_inv) functions 2007-10-17 08:42:57 -07:00
sparc remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
sparc64 Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block 2007-10-17 09:08:13 -07:00
um remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
v850 remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
x86 cpu hotplug: intel_cacheinfo: fix cpu hotplug error handling 2007-10-18 14:37:21 -07:00
x86_64 Hibernation: Arbitrary boot kernel support on x86_64 2007-10-18 14:37:19 -07:00
xtensa Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00