Li Zefan b135379356 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: Kamal Mostafa <kamal@canonical.com>

2014-02-07 13:22:06 -08:00

..

backing-dev.c

Revert "bdi: add a user-tunable cpu_list for the bdi flusher threads"

2012-12-17 11:29:09 -08:00

balloon_compaction.c

mm: introduce a common interface for balloon pages mobility

2012-12-11 17:22:26 -08:00

bootmem.c

mm: bootmem: fix free_all_bootmem_core() with odd bitmap alignment

2013-01-11 14:54:55 -08:00

bounce.c

block: Add bio_for_each_segment_all()

2013-08-29 16:31:39 -07:00

cleancache.c

->encode_fh() API change

2012-05-29 23:28:33 -04:00

compaction.c

mm/compaction: respect ignore_skip_hint in update_pageblock_skip

2014-01-09 14:09:41 -08:00

debug-pagealloc.c

mm, x86: Remove debug_pagealloc_enabled

2011-12-06 09:24:07 +01:00

dmapool.c

dmapool: make DMAPOOL_DEBUG detect corruption of free marker

2012-12-11 17:22:24 -08:00

fadvise.c

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

2013-02-28 05:38:32 -08:00

failslab.c

switch debugfs to umode_t

2012-01-03 22:54:56 -05:00

filemap_xip.c

mm: move all mmu notifier invocations to be done outside the PT lock

2012-10-09 16:22:58 +09:00

filemap.c

readahead: fault retry breaks mmap file read random detection

2012-10-09 16:22:47 +09:00

fremap.c

remap_file_pages: correctly handle the case of a NULL vm_ops pointer

2012-10-19 13:37:57 -07:00

frontswap.c

frontswap: support exclusive gets if tmem backend is capable

2012-09-21 10:38:12 -04:00

highmem.c

Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2012-12-20 08:37:05 -08:00

huge_memory.c

mm: numa: defer TLB flush for THP migration as long as possible

2014-01-09 14:09:40 -08:00

hugetlb_cgroup.c

mm/hugetlb: create hugetlb cgroup file in hugetlb_init

2012-12-18 15:02:15 -08:00

hugetlb.c

Fix TLB gather virtual address range invalidation corner cases

2013-08-29 12:11:17 -07:00

hwpoison-inject.c

memcg: rename config variables

2012-07-31 18:42:43 -07:00

init-mm.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

internal.h

mm: compaction: partially revert capture of suitable high-order page

2013-01-11 14:54:56 -08:00

interval_tree.c

mm: add CONFIG_DEBUG_VM_RB build option

2012-10-09 16:22:42 +09:00

Kconfig

memory-hotplug: document and enable CONFIG_MOVABLE_NODE

2012-12-18 15:02:12 -08:00

Kconfig.debug

mm: more intensive memory corruption debugging

2012-01-10 16:30:42 -08:00

kmemcheck.c

kmemcheck: Fix build errors due to missing slab.h

2010-03-30 22:02:32 +09:00

kmemleak-test.c

kmemleak: remove memset by using kzalloc

2011-01-27 18:31:51 +00:00

kmemleak.c

mm/kmemleak.c: remove obsolete simple_strtoul

2012-12-18 15:02:15 -08:00

ksm.c

ksm: make rmap walks more scalable

2012-12-20 07:06:56 -08:00

maccess.c

mm: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

madvise.c

mm: prepare VM_DONTDUMP for using in drivers

2012-10-09 16:22:18 +09:00

Makefile

mm: introduce a common interface for balloon pages mobility

2012-12-11 17:22:26 -08:00

memblock.c

mm: memblock: fix wrong memmove size in memblock_merge_regions()

2013-01-11 14:54:54 -08:00

memcontrol.c

mm: memcg: fix race condition between memcg teardown and swapin

2014-01-07 14:58:27 -08:00

memory_hotplug.c

mm/memory_hotplug.c: improve comments

2012-12-18 15:02:15 -08:00

memory-failure.c

Merge tag 'balancenuma-v11' of git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma

2012-12-16 15:18:08 -08:00

memory.c

mm: numa: Sanitize task_numa_fault() callsites

2013-11-07 17:40:30 -08:00

mempolicy.c

mm: mempolicy: fix mbind_range() && vma_adjust() interaction

2013-08-21 10:58:03 -07:00

mempool.c

mempool: add @gfp_mask to mempool_create_node()

2012-06-25 11:53:47 +02:00

migrate.c

mm: numa: defer TLB flush for THP migration as long as possible

2014-01-09 14:09:40 -08:00

mincore.c

mm: thp: fix pmd_bad() triggering in code paths holding mmap_sem read mode

2012-03-21 17:54:54 -07:00

mlock.c

mm: don't overwrite mm->def_flags in do_mlockall()

2013-02-12 14:34:00 -08:00

mm_init.c

mm: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

mmap.c

mm: ensure get_unmapped_area() returns higher address than mmap_min_addr

2013-12-06 14:28:07 -08:00

mmu_context.c

mm, counters: remove task argument to sync_mm_rss() and __sync_task_rss_stat()

2012-03-21 17:54:59 -07:00

mmu_notifier.c

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

2013-05-31 11:07:00 -07:00

mmzone.c

memcg: fix hotplugged memory zone oops

2012-11-16 14:33:04 -08:00

mprotect.c

mm: fix TLB flush race between migration, and change_protection_range

2014-01-09 14:09:39 -08:00

mremap.c

mm/rmap: rename anon_vma_unlock() => anon_vma_unlock_write()

2013-05-31 11:07:03 -07:00

msync.c

sanitize vfs_fsync calling conventions

2010-05-21 18:31:21 -04:00

nobootmem.c

mm: introduce new field "managed_pages" to struct zone

2012-12-12 17:38:34 -08:00

nommu.c

mm: prevent mmap_cache race in find_vma()

2013-04-12 09:52:05 -07:00

oom_kill.c

mm, oom: remove redundant sleep in pagefault oom handler

2012-12-12 17:38:34 -08:00

page_alloc.c

mm/memory-hotplug: fix lowmem count overflow when offline pages

2013-07-16 10:35:42 -07:00

page_cgroup.c

memcontrol: use N_MEMORY instead N_HIGH_MEMORY

2012-12-12 17:38:32 -08:00

page_io.c

mm: swap: mark swap pages writeback before queueing for direct IO

2013-05-07 20:08:22 -07:00

page_isolation.c

mm: fix zone_watermark_ok_safe() accounting of isolated pages

2013-01-04 16:11:46 -08:00

page-writeback.c

writeback: fix negative bdi max pause

2013-10-31 09:20:13 -07:00

pagewalk.c

mm/pagewalk.c: walk_page_range should avoid VM_PFNMAP areas

2013-05-31 11:07:08 -07:00

percpu-km.c

percpu: clear memory allocated with the km allocator

2010-10-02 10:28:42 +03:00

percpu-vm.c

mm: fix kernel-doc warnings

2012-06-20 14:39:36 -07:00

percpu.c

mm, percpu: Make sure percpu_alloc early parameter has an argument

2012-12-02 06:23:04 -08:00

pgtable-generic.c

mm: fix TLB flush race between migration, and change_protection_range

2014-01-09 14:09:39 -08:00

process_vm_access.c

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

2013-03-14 11:26:36 -07:00

quicklist.c

mm: delete various needless include <linux/module.h>

2011-10-31 09:20:11 -04:00

readahead.c

switch simple cases of fget_light to fdget

2012-09-26 22:20:08 -04:00

rmap.c

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

2013-12-20 10:06:38 -08:00

shmem.c

tmpfs: fix use-after-free of mempolicy object

2013-02-28 05:38:32 -08:00

slab_common.c

slab: propagate tunable values

2012-12-18 15:02:14 -08:00

slab.c

memcg: add comments clarifying aspects of cache attribute propagation

2012-12-18 15:02:15 -08:00

slab.h

memcg: check that kmem_cache has memcg_params before accessing it

2013-09-05 12:45:38 -07:00

slob.c

sl[au]b: always get the cache from its page in kmem_cache_free()

2012-12-18 15:02:14 -08:00

slub.c

slub: Fix calculation of cpu slabs

2014-02-07 13:22:06 -08:00

sparse-vmemmap.c

mm: delete various needless include <linux/module.h>

2011-10-31 09:20:11 -04:00

sparse.c

memory-hotplug, mm/sparse.c: clear the memory to store struct page

2012-12-11 17:22:23 -08:00

swap_state.c

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

2013-06-14 09:41:42 -07:00

swap.c

mm: fix aio performance regression for database caused by THP

2013-09-20 12:56:30 -07:00

swapfile.c

mm, oom: fix race when specifying a thread as the oom origin

2012-12-11 17:22:27 -08:00

truncate.c

mm: drop vmtruncate

2012-12-20 18:46:29 -05:00

util.c

Merge branch 'master' into for-next

2012-10-28 19:29:19 +01:00

vmalloc.c

mm: use IS_ENABLED(CONFIG_NUMA) instead of NUMA_BUILD

2012-12-11 17:22:22 -08:00

vmscan.c

mm: avoid reinserting isolated balloon pages into LRU lists

2013-10-10 08:24:05 -07:00

vmstat.c

mm: numa: return the number of base pages altered by protection changes

2013-12-06 14:28:07 -08:00