Paul Jackson 505970b96e [PATCH] cpuset oom lock fix ... The problem, reported in: http://bugzilla.kernel.org/show_bug.cgi?id=5859 and by various other email messages and lkml posts is that the cpuset hook in the oom (out of memory) code can try to take a cpuset semaphore while holding the tasklist_lock (a spinlock). One must not sleep while holding a spinlock. The fix seems easy enough - move the cpuset semaphore region outside the tasklist_lock region. This required a few lines of mechanism to implement. The oom code where the locking needs to be changed does not have access to the cpuset locks, which are internal to kernel/cpuset.c only. So I provided a couple more cpuset interface routines, available to the rest of the kernel, which simple take and drop the lock needed here (cpusets callback_sem). Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-01-14 18:27:10 -08:00
..
bootmem.c	[PATCH] FRV: Clean up bootmem allocator's page freeing algorithm	2006-01-06 08:33:26 -08:00
fadvise.c	[PATCH] fadvise: return ESPIPE on FIFO/pipe	2006-01-08 20:14:00 -08:00
filemap_xip.c	[PATCH] replace inode_update_time with file_update_time	2006-01-10 08:01:30 -08:00
filemap.c	[PATCH] move capable() to capability.h	2006-01-11 18:42:13 -08:00
filemap.h
fremap.c
highmem.c
hugetlb.c	[PATCH] mm: make hugepages obey cpusets.	2006-01-08 20:12:43 -08:00
internal.h	[PATCH] FRV: Clean up bootmem allocator's page freeing algorithm	2006-01-06 08:33:26 -08:00
Kconfig	[PATCH] Swap Migration V5: Add CONFIG_MIGRATION for page migration support	2006-01-08 20:12:41 -08:00
madvise.c	[PATCH] madvise(MADV_REMOVE): remove pages from tmpfs shm backing store	2006-01-06 08:33:22 -08:00
Makefile	[PATCH] slob: introduce the SLOB allocator	2006-01-08 20:13:41 -08:00
memory_hotplug.c	[PATCH] memhotplug: __add_section remove unused pgdat definition	2006-01-06 08:33:21 -08:00
memory.c	[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem	2006-01-09 15:59:24 -08:00
mempolicy.c	[PATCH] Add tmpfs options for memory placement policies	2006-01-14 18:27:07 -08:00
mempool.c
mincore.c
mlock.c	[PATCH] move capable() to capability.h	2006-01-11 18:42:13 -08:00
mmap.c	[PATCH] move capable() to capability.h	2006-01-11 18:42:13 -08:00
mprotect.c
mremap.c	[PATCH] move capable() to capability.h	2006-01-11 18:42:13 -08:00
msync.c	[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem	2006-01-09 15:59:24 -08:00
nommu.c	[PATCH] NOMMU: Make SYSV IPC SHM use ramfs facilities on NOMMU	2006-01-06 08:33:32 -08:00
oom_kill.c	[PATCH] cpuset oom lock fix	2006-01-14 18:27:10 -08:00
page_alloc.c	[PATCH] memmap_init_zone(): remove uneccesary page++	2006-01-12 09:08:49 -08:00
page_io.c
page-writeback.c	identify multipage ->writepages() calls	2006-01-06 14:58:38 -05:00
pdflush.c	[PATCH] Swap Migration V5: PF_SWAPWRITE to allow writing to swap	2006-01-08 20:12:41 -08:00
prio_tree.c
readahead.c
rmap.c	[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem	2006-01-09 15:59:24 -08:00
shmem.c	[PATCH] Add tmpfs options for memory placement policies	2006-01-14 18:27:07 -08:00
slab.c	[PATCH] fix/simplify mutex debugging code	2006-01-11 08:14:16 -08:00
slob.c	[PATCH] slob: introduce the SLOB allocator	2006-01-08 20:13:41 -08:00
sparse.c	[PATCH] Change maxaligned_in_smp alignemnt macros to internodealigned_in_smp macros	2006-01-08 20:13:38 -08:00
swap_state.c	[PATCH] SwapMig: add_to_swap() avoid atomic allocations	2006-01-08 20:12:42 -08:00
swap.c	[XFS] Export pagevec_lookup for use on the XFS page writeout path,	2006-01-11 20:47:41 +11:00
swapfile.c	[PATCH] move capable() to capability.h	2006-01-11 18:42:13 -08:00
thrash.c
tiny-shmem.c	[PATCH] do_truncate() call fix in tiny-shmem.c	2006-01-12 09:08:49 -08:00
truncate.c	[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem	2006-01-09 15:59:24 -08:00
util.c	[PATCH] slob: introduce mm/util.c for shared functions	2006-01-08 20:13:41 -08:00
vmalloc.c
vmscan.c	[PATCH] SwapMig: Switch error handling in migrate_pages to use -Exx	2006-01-08 20:12:42 -08:00