Li Zefan b06c0a0cc5 slub: Fix calculation of cpu slabs ...

commit 8afb1474db upstream.

  /sys/kernel/slab/:t-0000048 # cat cpu_slabs
  231 N0=16 N1=215
  /sys/kernel/slab/:t-0000048 # cat slabs
  145 N0=36 N1=109

See, the number of slabs is smaller than that of cpu slabs.

The bug was introduced by commit 49e2258586
("slub: per cpu cache for partial pages").

We should use page->pages instead of page->pobjects when calculating
the number of cpu partial slabs. This also fixes the mapping of slabs
and nodes.

As there's no variable storing the number of total/active objects in
cpu partial slabs, and we don't have user interfaces requiring those
statistics, I just add WARN_ON for those cases.

Acked-by: Christoph Lameter <cl@linux.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2014-02-13 11:51:09 -08:00

..

backing-dev.c

…

bootmem.c

mm: sparse: fix usemap allocation above node descriptor section

2012-10-02 10:30:36 -07:00

bounce.c

…

cleancache.c

…

compaction.c

mm: compaction: fix echo 1 > compact_memory return error issue

2013-01-17 08:50:43 -08:00

debug-pagealloc.c

…

dmapool.c

mm: dmapool: use provided gfp flags for all dma_alloc_coherent() calls

2012-12-17 10:37:44 -08:00

fadvise.c

mm/fadvise.c: drain all pagevecs if POSIX_FADV_DONTNEED fails to discard all pages

2013-02-28 06:59:01 -08:00

failslab.c

…

filemap_xip.c

…

filemap.c

…

fremap.c

…

highmem.c

…

huge_memory.c

mm/huge_memory.c: fix potential NULL pointer dereference

2013-09-26 17:15:51 -07:00

hugetlb.c

mm: hugetlbfs: fix hugetlbfs optimization

2014-02-06 11:05:46 -08:00

hwpoison-inject.c

…

init-mm.c

…

internal.h

…

Kconfig

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Kconfig.debug

…

kmemcheck.c

…

kmemleak-test.c

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kmemleak.c

…

ksm.c

…

maccess.c

…

madvise.c

…

Makefile

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memblock.c

x86, mm: Trim memory in memblock to be page aligned

2012-10-31 10:02:56 -07:00

memcontrol.c

memcg: fix multiple large threshold notifications

2013-09-26 17:15:50 -07:00

memory_hotplug.c

memory hotplug: fix section info double registration bug

2012-10-02 10:30:06 -07:00

memory-failure.c

mm/memory-failure.c: recheck PageHuge() after hugetlb page migrate successfully

2014-01-29 05:10:42 -08:00

memory.c

vm: add vm_iomap_memory() helper function

2013-04-25 21:19:56 -07:00

mempolicy.c

tmpfs mempolicy: fix /proc/mounts corrupting memory

2013-01-11 09:06:49 -08:00

mempool.c

…

migrate.c

mm: migration: add migrate_entry_wait_huge()

2013-06-20 11:58:46 -07:00

mincore.c

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mlock.c

…

mm_init.c

…

mmap.c

mm: do not grow the stack vma just because of an overrun on preceding vma

2013-10-22 09:02:25 +01:00

mmu_context.c

…

mmu_notifier.c

mm: mmu_notifier: re-fix freed page still mapped in secondary MMU

2013-06-07 12:49:25 -07:00

mmzone.c

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mprotect.c

…

mremap.c

…

msync.c

…

nobootmem.c

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nommu.c

vm: add no-mmu vm_iomap_memory() stub

2013-08-20 08:26:27 -07:00

oom_kill.c

mm, memcg: give exiting processes access to memory reserves

2013-10-05 07:06:54 -07:00

page_alloc.c

mm, show_mem: suppress page counts in non-blockable contexts

2013-10-13 15:42:49 -07:00

page_cgroup.c

…

page_io.c

…

page_isolation.c

…

page-writeback.c

writeback: fix negative bdi max pause

2013-11-04 04:23:42 -08:00

pagewalk.c

mm/pagewalk.c: walk_page_range should avoid VM_PFNMAP areas

2013-06-07 12:49:28 -07:00

percpu-km.c

…

percpu-vm.c

…

percpu.c

…

pgtable-generic.c

…

prio_tree.c

…

process_vm_access.c

Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys

2013-03-14 11:29:51 -07:00

quicklist.c

…

readahead.c

…

rmap.c

mm/hugetlb: check for pte NULL pointer in __page_check_address()

2014-01-08 09:42:12 -08:00

shmem.c

tmpfs: fix use-after-free of mempolicy object

2013-02-28 06:59:01 -08:00

slab.c

slab: fix the DEADLOCK issue on l3 alien lock

2012-10-13 05:38:37 +09:00

slob.c

…

slub.c

slub: Fix calculation of cpu slabs

2014-02-13 11:51:09 -08:00

sparse-vmemmap.c

…

sparse.c

mm/vmemmap: fix wrong use of virt_to_page

2012-12-10 10:59:39 -08:00

swap_state.c

swap: avoid read_swap_cache_async() race to deadlock while waiting on discard I/O completion

2013-06-20 11:58:45 -07:00

swap.c

mm: hugetlbfs: fix hugetlbfs optimization

2014-02-06 11:05:46 -08:00

swapfile.c

…

thrash.c

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truncate.c

mm: fix invalidate_complete_page2() lock ordering

2012-10-13 05:38:51 +09:00

util.c

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vmalloc.c

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vmscan.c

mm: bugfix: set current->reclaim_state to NULL while returning from kswapd()

2012-11-26 11:37:19 -08:00

vmstat.c

…