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linux/mm
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Hugh Dickins b9980cdcf2 mm: fix UP THP spin_is_locked BUGs 
Fix CONFIG_TRANSPARENT_HUGEPAGE=y CONFIG_SMP=n CONFIG_DEBUG_VM=y
CONFIG_DEBUG_SPINLOCK=n kernel: spin_is_locked() is then always false,
and so triggers some BUGs in Transparent HugePage codepaths.

asm-generic/bug.h mentions this problem, and provides a WARN_ON_SMP(x);
but being too lazy to add VM_BUG_ON_SMP, BUG_ON_SMP, WARN_ON_SMP_ONCE,
VM_WARN_ON_SMP_ONCE, just test NR_CPUS != 1 in the existing VM_BUG_ONs.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-08 19:03:51 -08:00
..
backing-dev.c freezer: implement and use kthread_freezable_should_stop() 2011-11-21 12:32:23 -08:00
bootmem.c mm: bootmem: try harder to free pages in bulk 2012-01-10 16:30:45 -08:00
bounce.c
cleancache.c
compaction.c mm: compaction: check for overlapping nodes during isolation for migration 2012-02-08 19:03:51 -08:00
debug-pagealloc.c mm, x86: Remove debug_pagealloc_enabled 2011-12-06 09:24:07 +01:00
dmapool.c
fadvise.c fadvise: only initiate writeback for specified range with FADV_DONTNEED 2012-01-10 16:30:43 -08:00
failslab.c switch debugfs to umode_t 2012-01-03 22:54:56 -05:00
filemap_xip.c mm/filemap_xip.c: fix race condition in xip_file_fault() 2012-02-03 16:16:41 -08:00
filemap.c readahead: fix pipeline break caused by block plug 2012-02-03 16:16:41 -08:00
fremap.c
highmem.c
huge_memory.c mm: fix UP THP spin_is_locked BUGs 2012-02-08 19:03:51 -08:00
hugetlb.c mm/hugetlb.c: undo change to page mapcount in fault handler 2012-01-23 08:38:48 -08:00
hwpoison-inject.c
init-mm.c
internal.h
Kconfig Merge branch 'master' into x86/memblock 2011-11-28 09:46:22 -08:00
Kconfig.debug mm: more intensive memory corruption debugging 2012-01-10 16:30:42 -08:00
kmemcheck.c
kmemleak-test.c
kmemleak.c kmemleak: Disable early logging when kmemleak is off by default 2012-01-20 16:57:05 +00:00
ksm.c memcg: clear pc->mem_cgroup if necessary. 2012-01-12 20:13:07 -08:00
maccess.c
madvise.c
Makefile
memblock.c memblock: Fix alloc failure due to dumb underflow protection in memblock_find_in_range_node() 2012-01-16 08:38:06 +01:00
memcontrol.c mm/memcontrol.c: fix warning with CONFIG_NUMA=n 2012-02-03 16:16:40 -08:00
memory_hotplug.c mm: compaction: introduce sync-light migration for use by compaction 2012-01-12 20:13:09 -08:00
memory-failure.c mm: compaction: introduce sync-light migration for use by compaction 2012-01-12 20:13:09 -08:00
memory.c mm: fix rss count leakage during migration 2012-01-23 08:38:49 -08:00
mempolicy.c mm: compaction: introduce sync-light migration for use by compaction 2012-01-12 20:13:09 -08:00
mempool.c mempool: fix first round failure behavior 2012-01-10 16:30:45 -08:00
migrate.c mm: postpone migrated page mapping reset 2012-02-03 16:16:40 -08:00
mincore.c
mlock.c
mm_init.c
mmap.c mm: simplify find_vma_prev() 2012-01-10 16:30:44 -08:00
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c mremap: enforce rmap src/dst vma ordering in case of vma_merge() succeeding in copy_vma() 2012-01-10 16:30:44 -08:00
msync.c
nobootmem.c Merge branch 'master' into x86/memblock 2011-11-28 09:46:22 -08:00
nommu.c
oom_kill.c mm: unify remaining mem_cont, mem, etc. variable names to memcg 2012-01-12 20:13:06 -08:00
page_alloc.c mm: __count_immobile_pages(): make sure the node is online 2012-01-23 08:38:47 -08:00
page_cgroup.c page_cgroup: drop multi CONFIG_MEMORY_HOTPLUG 2012-01-12 20:13:08 -08:00
page_io.c
page_isolation.c
page-writeback.c Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux 2012-01-10 16:59:59 -08:00
pagewalk.c
percpu-km.c
percpu-vm.c percpu: fix chunk range calculation 2011-11-22 08:09:46 -08:00
percpu.c Kmemleak patches 2012-01-14 18:11:11 -08:00
pgtable-generic.c
prio_tree.c
process_vm_access.c Fix race in process_vm_rw_core 2012-02-02 12:55:17 -08:00
quicklist.c
readahead.c
rmap.c mm: unify remaining mem_cont, mem, etc. variable names to memcg 2012-01-12 20:13:06 -08:00
shmem.c SHM_UNLOCK: fix Unevictable pages stranded after swap 2012-01-23 08:38:48 -08:00
slab.c Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux 2012-01-11 18:52:23 -08:00
slob.c
slub.c mm,x86,um: move CMPXCHG_DOUBLE config option 2012-01-12 20:13:03 -08:00
sparse-vmemmap.c
sparse.c
swap_state.c memcg: clear pc->mem_cgroup if necessary. 2012-01-12 20:13:07 -08:00
swap.c mm: fix UP THP spin_is_locked BUGs 2012-02-08 19:03:51 -08:00
swapfile.c mm: unify remaining mem_cont, mem, etc. variable names to memcg 2012-01-12 20:13:06 -08:00
thrash.c
truncate.c
util.c
vmalloc.c mm/vmalloc.c: eliminate extra loop in pcpu_get_vm_areas error path 2012-01-12 20:13:10 -08:00
vmscan.c SHM_UNLOCK: fix Unevictable pages stranded after swap 2012-01-23 08:38:48 -08:00
vmstat.c mm,x86,um: move CMPXCHG_LOCAL config option 2012-01-12 20:13:03 -08:00