KAMEZAWA Hiroyuki b24028572f memcg: remove PCG_CACHE page_cgroup flag ... We record 'the page is cache' with the PCG_CACHE bit in page_cgroup. Here, "CACHE" means anonymous user pages (and SwapCache). This doesn't include shmem. Considering callers, at charge/uncharge, the caller should know what the page is and we don't need to record it by using one bit per page. This patch removes PCG_CACHE bit and make callers of mem_cgroup_charge_statistics() to specify what the page is. About page migration: Mapping of the used page is not touched during migra tion (see page_remove_rmap) so we can rely on it and push the correct charge type down to __mem_cgroup_uncharge_common from end_migration for unused page. The force flag was misleading was abused for skipping the needless page_mapped() / PageCgroupMigration() check, as we know the unused page is no longer mapped and cleared the migration flag just a few lines up. But doing the checks is no biggie and it's not worth adding another flag just to skip them. [akpm@linux-foundation.org: checkpatch fixes] [hughd@google.com: fix PageAnon uncharging] Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Michal Hocko <mhocko@suse.cz> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Hugh Dickins <hughd@google.com> Cc: Ying Han <yinghan@google.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-03-21 17:55:01 -07:00
..
backing-dev.c	backing-dev: fix wakeup timer races with bdi_unregister()	2012-02-01 16:52:49 +08:00
bootmem.c	bootmem/sparsemem: remove limit constraint in alloc_bootmem_section	2012-03-21 17:54:58 -07:00
bounce.c	mm: remove the second argument of k[un]map_atomic()	2012-03-20 21:48:27 +08:00
cleancache.c	mm: cleancache core ops functions and config	2011-05-26 10:01:36 -06:00
compaction.c	mm: compaction: make compact_control order signed	2012-03-21 17:54:56 -07:00
debug-pagealloc.c	mm, x86: Remove debug_pagealloc_enabled	2011-12-06 09:24:07 +01:00
dmapool.c	mm: fix implicit stat.h usage in dmapool.c	2011-10-31 09:20:12 -04:00
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	cpuset: mm: reduce large amounts of memory barrier related damage v3	2012-03-21 17:54:59 -07:00
fremap.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
highmem.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
huge_memory.c	thp: optimize away unnecessary page table locking	2012-03-21 17:54:57 -07:00
hugetlb.c	hugepages: fix use after free bug in "quota" handling	2012-03-21 17:54:59 -07:00
hwpoison-inject.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
init-mm.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
internal.h	mm: thp: tail page refcounting fix	2011-11-02 16:06:57 -07:00
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: remove memset by using kzalloc	2011-01-27 18:31:51 +00:00
kmemleak.c	kmemleak: Disable early logging when kmemleak is off by default	2012-01-20 16:57:05 +00:00
ksm.c	ksm: cleanup: introduce find_mergeable_vma()	2012-03-21 17:54:59 -07:00
maccess.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
madvise.c	fs: kill i_alloc_sem	2011-07-20 20:47:46 -04:00
Makefile	Cross Memory Attach	2011-10-31 17:30:44 -07:00
memblock.c	memblock: Fix size aligning of memblock_alloc_base_nid()	2012-03-01 10:53:18 +01:00
memcontrol.c	memcg: remove PCG_CACHE page_cgroup flag	2012-03-21 17:55:01 -07:00
memory_hotplug.c	mm: compaction: introduce sync-light migration for use by compaction	2012-01-12 20:13:09 -08:00
memory-failure.c	thp: allow a hwpoisoned head page to be put back to LRU	2012-03-21 17:54:58 -07:00
memory.c	mm, counters: fold __sync_task_rss_stat() into sync_mm_rss()	2012-03-21 17:54:59 -07:00
mempolicy.c	cpuset: mm: reduce large amounts of memory barrier related damage v3	2012-03-21 17:54:59 -07:00
mempool.c	mempool: fix first round failure behavior	2012-01-10 16:30:45 -08:00
migrate.c	mm: fix move/migrate_pages() race on task struct	2012-03-21 17:54:58 -07:00
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	vm: avoid using find_vma_prev() unnecessarily	2012-03-06 18:23:36 -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	mmap.c: fix comment for __insert_vm_struct()	2012-03-21 17:55:00 -07:00
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: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
mmzone.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
mprotect.c	mm: replace PAGE_MIGRATION with IS_ENABLED(CONFIG_MIGRATION)	2012-03-21 17:54:57 -07:00
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	NOMMU: Don't need to clear vm_mm when deleting a VMA	2012-02-24 08:59:04 -08:00
oom_kill.c	mm, memcg: pass charge order to oom killer	2012-03-21 17:54:59 -07:00
page_alloc.c	page_alloc: remove unused find_zone_movable_pfns_for_nodes() argument	2012-03-21 17:55:00 -07:00
page_cgroup.c	page_cgroup: fix horrid swap accounting regression	2012-03-06 08:18:23 -08:00
page_io.c	block: kill off REQ_UNPLUG	2011-03-10 08:52:27 +01:00
page_isolation.c
page-writeback.c	mm: use global_dirty_limit in throttle_vm_writeout()	2012-03-21 17:54:58 -07:00
pagewalk.c	mm: thp: fix pmd_bad() triggering in code paths holding mmap_sem read mode	2012-03-21 17:54:54 -07:00
percpu-km.c
percpu-vm.c	percpu: use bitmap_clear	2012-01-20 09:23:16 -08:00
percpu.c	Kmemleak patches	2012-01-14 18:11:11 -08:00
pgtable-generic.c
prio_tree.c	sanitize <linux/prefetch.h> usage	2011-05-20 12:50:29 -07:00
process_vm_access.c	Fix race in process_vm_rw_core	2012-02-02 12:55:17 -08:00
quicklist.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
readahead.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
rmap.c	rmap: anon_vma_prepare: Reduce code duplication by calling anon_vma_chain_link	2012-03-21 17:54:57 -07:00
shmem.c	tmpfs: security xattr setting on inode creation	2012-03-21 17:54:58 -07:00
slab.c	cpuset: mm: reduce large amounts of memory barrier related damage v3	2012-03-21 17:54:59 -07:00
slob.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
slub.c	cpuset: mm: reduce large amounts of memory barrier related damage v3	2012-03-21 17:54:59 -07:00
sparse-vmemmap.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
sparse.c	bootmem/sparsemem: remove limit constraint in alloc_bootmem_section	2012-03-21 17:54:58 -07:00
swap_state.c	mm: make swapin readahead skip over holes	2012-03-21 17:54:56 -07:00
swap.c	mm: drain percpu lru add/rotate page-vectors on cpu hot-unplug	2012-03-21 17:54:58 -07:00
swapfile.c	swap: don't do discard if no discard option added	2012-03-21 17:55:00 -07:00
thrash.c	mm/thrash.c: quiet sparse noise	2011-10-31 17:30:50 -07:00
truncate.c	mm: fix comment typo of truncate_inode_pages_range	2012-02-23 11:52:19 +01:00
util.c	procfs: mark thread stack correctly in proc/<pid>/maps	2012-03-21 17:54:58 -07:00
vmalloc.c	mm: remove the second argument of k[un]map_atomic()	2012-03-20 21:48:27 +08:00
vmscan.c	mm: forbid lumpy-reclaim in shrink_active_list()	2012-03-21 17:55:00 -07:00
vmstat.c	mm,x86,um: move CMPXCHG_LOCAL config option	2012-01-12 20:13:03 -08:00