Linus Torvalds 370905069c Revert "slub: do not put a slab to cpu partial list when cpu_partial is 0" ... This reverts commit 318df36e57. This commit caused Steven Rostedt's hackbench runs to run out of memory due to a leak. As noted by Joonsoo Kim, it is buggy in the following scenario: "I guess, you may set 0 to all kmem caches's cpu_partial via sysfs, doesn't it? In this case, memory leak is possible in following case. Code flow of possible leak is follwing case. * in __slab_free() 1. (!new.inuse || !prior) && !was_frozen 2. !kmem_cache_debug && !prior 3. new.frozen = 1 4. after cmpxchg_double_slab, run the (!n) case with new.frozen=1 5. with this patch, put_cpu_partial() doesn't do anything, because this cache's cpu_partial is 0 6. return In step 5, leak occur" And Steven does indeed have cpu_partial set to 0 due to RT testing. Joonsoo is cooking up a patch, but everybody agrees that reverting this for now is the right thing to do. Reported-and-bisected-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-08-08 09:06:37 -07:00
..
Kconfig	zswap: add to mm/	2013-07-10 18:11:34 -07:00
Kconfig.debug	…
Makefile	zswap: add to mm/	2013-07-10 18:11:34 -07:00
backing-dev.c	sysfs.h: add __ATTR_RW() macro	2013-07-16 10:57:36 -07:00
balloon_compaction.c	…
bootmem.c	mm: kill free_all_bootmem_node()	2013-07-03 16:07:39 -07:00
bounce.c	Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block	2013-05-08 10:13:35 -07:00
cleancache.c	…
compaction.c	…
debug-pagealloc.c	…
dmapool.c	…
fadvise.c	…
failslab.c	…
filemap.c	mm: remove unused VM_<READfoo> macros and expand other in-place	2013-07-09 10:33:23 -07:00
filemap_xip.c	…
fremap.c	…
frontswap.c	frontswap: fix incorrect zeroing and allocation size for frontswap_map	2013-06-12 16:29:46 -07:00
highmem.c	…
huge_memory.c	thp, mm: avoid PageUnevictable on active/inactive lru lists	2013-07-31 14:41:03 -07:00
hugetlb.c	mm: correctly update zone->managed_pages	2013-07-03 16:07:33 -07:00
hugetlb_cgroup.c	…
hwpoison-inject.c	…
init-mm.c	…
internal.h	mm: remove unused __put_page()	2013-07-09 10:33:22 -07:00
interval_tree.c	…
kmemcheck.c	…
kmemleak-test.c	…
kmemleak.c	…
ksm.c	…
maccess.c	…
madvise.c	…
memblock.c	mm/memblock.c: fix wrong comment in __next_free_mem_range()	2013-07-09 10:33:23 -07:00
memcontrol.c	vmpressure: make sure there are no events queued after memcg is offlined	2013-07-31 14:41:04 -07:00
memory-failure.c	mm/memory-failure.c: fix memory leak in successful soft offlining	2013-07-03 16:07:31 -07:00
memory.c	mm: remove unused VM_<READfoo> macros and expand other in-place	2013-07-09 10:33:23 -07:00
memory_hotplug.c	mm/memory_hotplug.c: fix return value of online_pages()	2013-07-09 10:33:25 -07:00
mempolicy.c	mm: mempolicy: fix mbind_range() && vma_adjust() interaction	2013-07-31 14:41:02 -07:00
mempool.c	…
migrate.c	mm: migration: add migrate_entry_wait_huge()	2013-06-12 16:29:46 -07:00
mincore.c	…
mlock.c	…
mm_init.c	mm: tune vm_committed_as percpu_counter batching size	2013-07-03 16:07:32 -07:00
mmap.c	mm: mempolicy: fix mbind_range() && vma_adjust() interaction	2013-07-31 14:41:02 -07:00
mmu_context.c	mm: remove old aio use_mm() comment	2013-05-07 18:38:27 -07:00
mmu_notifier.c	treewide: relase -> release	2013-06-28 14:34:33 +02:00
mmzone.c	…
mprotect.c	…
mremap.c	mm: mremap: validate input before taking lock	2013-07-09 10:33:20 -07:00
msync.c	…
nobootmem.c	mm: concentrate modification of totalram_pages into the mm core	2013-07-03 16:07:33 -07:00
nommu.c	mm: remove free_area_cache	2013-07-10 18:11:34 -07:00
oom_kill.c	…
page-writeback.c	kernel: delete __cpuinit usage from all core kernel files	2013-07-14 19:36:59 -04:00
page_alloc.c	mm: honor min_free_kbytes set by user	2013-07-09 10:33:25 -07:00
page_cgroup.c	…
page_io.c	mm: remove compressed copy from zram in-memory	2013-07-03 16:07:26 -07:00
page_isolation.c	…
pagewalk.c	mm/pagewalk.c: walk_page_range should avoid VM_PFNMAP areas	2013-05-24 16:22:53 -07:00
percpu-km.c	…
percpu-vm.c	…
percpu.c	…
pgtable-generic.c	mm/THP: add pmd args to pgtable deposit and withdraw APIs	2013-06-20 16:55:07 +10:00
process_vm_access.c	…
quicklist.c	…
readahead.c	mm: change invalidatepage prototype to accept length	2013-05-21 23:17:23 -04:00
rmap.c	mm: remove unused VM_<READfoo> macros and expand other in-place	2013-07-09 10:33:23 -07:00
shmem.c	tmpfs: fix SEEK_DATA/SEEK_HOLE regression	2013-08-04 11:40:17 -07:00
slab.c	kernel: delete __cpuinit usage from all core kernel files	2013-07-14 19:36:59 -04:00
slab.h	mm/slab: Give s_next and s_stop slab-specific names	2013-07-08 11:02:17 +03:00
slab_common.c	Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux	2013-07-14 15:14:29 -07:00
slob.c	Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux	2013-07-14 15:14:29 -07:00
slub.c	Revert "slub: do not put a slab to cpu partial list when cpu_partial is 0"	2013-08-08 09:06:37 -07:00
sparse-vmemmap.c	…
sparse.c	mm/sparse.c: put clear_hwpoisoned_pages within CONFIG_MEMORY_HOTREMOVE	2013-07-09 10:33:22 -07:00
swap.c	thp, mm: avoid PageUnevictable on active/inactive lru lists	2013-07-31 14:41:03 -07:00
swap_state.c	swap: avoid read_swap_cache_async() race to deadlock while waiting on discard I/O completion	2013-06-12 16:29:45 -07:00
swapfile.c	swap: discard while swapping only if SWAP_FLAG_DISCARD_PAGES	2013-07-03 16:07:32 -07:00
truncate.c	mm: teach truncate_inode_pages_range() to handle non page aligned ranges	2013-05-27 23:32:35 -04:00
util.c	mm: remove free_area_cache	2013-07-10 18:11:34 -07:00
vmalloc.c	mm/vmalloc.c: fix an overflow bug in alloc_vmap_area()	2013-07-09 10:33:23 -07:00
vmpressure.c	vmpressure: make sure there are no events queued after memcg is offlined	2013-07-31 14:41:04 -07:00
vmscan.c	mm: vmscan: do not scale writeback pages when deciding whether to set ZONE_WRITEBACK	2013-07-09 10:33:23 -07:00
vmstat.c	kernel: delete __cpuinit usage from all core kernel files	2013-07-14 19:36:59 -04:00
zbud.c	mm: zbud: fix condition check on allocation size	2013-07-31 14:41:03 -07:00
zswap.c	zswap: add to mm/	2013-07-10 18:11:34 -07:00