Sha Zhengju 3ea67d06e4 memcg: add per cgroup writeback pages accounting ... Add memcg routines to count writeback pages, later dirty pages will also be accounted. After Kame's commit 89c06bd52f ("memcg: use new logic for page stat accounting"), we can use 'struct page' flag to test page state instead of per page_cgroup flag. But memcg has a feature to move a page from a cgroup to another one and may have race between "move" and "page stat accounting". So in order to avoid the race we have designed a new lock: mem_cgroup_begin_update_page_stat() modify page information -->(a) mem_cgroup_update_page_stat() -->(b) mem_cgroup_end_update_page_stat() It requires both (a) and (b)(writeback pages accounting) to be pretected in mem_cgroup_{begin/end}_update_page_stat(). It's full no-op for !CONFIG_MEMCG, almost no-op if memcg is disabled (but compiled in), rcu read lock in the most cases (no task is moving), and spin_lock_irqsave on top in the slow path. There're two writeback interfaces to modify: test_{clear/set}_page_writeback(). And the lock order is: --> memcg->move_lock --> mapping->tree_lock Signed-off-by: Sha Zhengju <handai.szj@taobao.com> Acked-by: Michal Hocko <mhocko@suse.cz> Reviewed-by: Greg Thelen <gthelen@google.com> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-09-12 15:38:02 -07:00
..
backing-dev.c	mm/backing-dev.c: check user buffer length before copying data to the related user buffer	2013-09-11 15:58:03 -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	mm: cleancache: clean up cleancache_enabled	2013-04-30 17:04:01 -07:00
compaction.c	mm: compaction: do not compact pgdat for order-0	2013-09-11 15:57:55 -07:00
debug-pagealloc.c
dmapool.c
fadvise.c	teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long	2013-03-03 22:46:22 -05:00
failslab.c
filemap_xip.c	lift sb_start_write() out of ->write()	2013-04-09 14:12:56 -04:00
filemap.c	mm: memcg: enable memcg OOM killer only for user faults	2013-09-12 15:38:01 -07:00
fremap.c	mm: save soft-dirty bits on file pages	2013-08-13 17:57:48 -07:00
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	mm/huge_memory.c: fix potential NULL pointer dereference	2013-09-11 15:57:19 -07:00
hugetlb_cgroup.c	cgroup: pass around cgroup_subsys_state instead of cgroup in file methods	2013-08-08 20:11:24 -04:00
hugetlb.c	mm: prepare to remove /proc/sys/vm/hugepages_treat_as_movable	2013-09-11 15:57:49 -07:00
hwpoison-inject.c	mm/hwpoison-inject.c: change permission of corrupt-pfn/unpoison-pfn to 0200	2013-09-11 15:58:11 -07:00
init-mm.c
internal.h	mm: vmscan: fix do_try_to_free_pages() livelock	2013-09-11 15:58:01 -07:00
interval_tree.c
Kconfig	Merge remote-tracking branch 'origin/next' into kvm-ppc-next	2013-08-29 00:41:59 +02:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c	mm: replace strict_strtoul() with kstrtoul()	2013-09-11 15:57:11 -07:00
ksm.c	mm: replace strict_strtoul() with kstrtoul()	2013-09-11 15:57:11 -07:00
maccess.c
madvise.c	mm/madvise.c:madvise_hwpoison(): remove local `ret'	2013-09-11 15:58:13 -07:00
Makefile	zswap: add to mm/	2013-07-10 18:11:34 -07:00
memblock.c	memblock, numa: binary search node id	2013-09-11 15:57:51 -07:00
memcontrol.c	memcg: add per cgroup writeback pages accounting	2013-09-12 15:38:02 -07:00
memory_hotplug.c	mm: memory-hotplug: enable memory hotplug to handle hugepage	2013-09-11 15:57:48 -07:00
memory-failure.c	mm/memory-failure.c: fix bug triggered by unpoisoning empty zero page	2013-09-11 15:58:12 -07:00
memory.c	mm: memcg: do not trap chargers with full callstack on OOM	2013-09-12 15:38:02 -07:00
mempolicy.c	mbind: add BUG_ON(!vma) in new_vma_page()	2013-09-11 15:57:50 -07:00
mempool.c	mm/mempool.c: convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...)	2013-09-11 15:58:14 -07:00
migrate.c	mm: vmscan: fix do_try_to_free_pages() livelock	2013-09-11 15:58:01 -07:00
mincore.c
mlock.c	mm: munlock: manual pte walk in fast path instead of follow_page_mask()	2013-09-11 15:58:01 -07:00
mm_init.c	mm: tune vm_committed_as percpu_counter batching size	2013-07-03 16:07:32 -07:00
mmap.c	mm/mmap: remove unnecessary assignment	2013-09-11 15:58:13 -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.c: call pud_free() after fail calling pmd_alloc()	2013-09-11 15:58:03 -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	mm: memcg: do not trap chargers with full callstack on OOM	2013-09-12 15:38:02 -07:00
page_alloc.c	mm: correct the comment about the value for buddy _mapcount	2013-09-11 15:58:06 -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	mm: memory-hotplug: enable memory hotplug to handle hugepage	2013-09-11 15:57:48 -07:00
page-writeback.c	memcg: add per cgroup writeback pages accounting	2013-09-12 15:38:02 -07:00
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: move pgtable related functions to right place	2013-09-11 15:57:30 -07:00
process_vm_access.c	Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys	2013-03-12 11:05:45 -07:00
quicklist.c
readahead.c	readahead: make context readahead more conservative	2013-09-11 15:57:39 -07:00
rmap.c	memcg: remove MEMCG_NR_FILE_MAPPED	2013-09-12 15:38:02 -07:00
shmem.c	initmpfs: make rootfs use tmpfs when CONFIG_TMPFS enabled	2013-09-11 15:59:37 -07:00
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
slab.c	kernel: delete __cpuinit usage from all core kernel files	2013-07-14 19:36:59 -04:00
slab.h	memcg: check that kmem_cache has memcg_params before accessing it	2013-08-28 19:26:38 -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	mm: replace strict_strtoul() with kstrtoul()	2013-09-11 15:57:11 -07:00
sparse-vmemmap.c	sparse-vmemmap: specify vmemmap population range in bytes	2013-04-29 15:54:35 -07:00
sparse.c	mm/sparse: introduce alloc_usemap_and_memmap	2013-09-11 15:58:01 -07:00
swap_state.c	lib/radix-tree.c: make radix_tree_node_alloc() work correctly within interrupt	2013-09-11 15:59:36 -07:00
swap.c	mm: fix aio performance regression for database caused by THP	2013-09-11 15:57:55 -07:00
swapfile.c	swap: make cluster allocation per-cpu	2013-09-11 15:57:17 -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	swap: clean-up #ifdef in page_mapping()	2013-09-11 15:57:31 -07:00
vmalloc.c	mm/vmalloc: use wrapper function get_vm_area_size to caculate size of vm area	2013-09-11 15:58:02 -07:00
vmpressure.c	Merge branch 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2013-09-03 18:25:03 -07:00
vmscan.c	memcg: trivial cleanups	2013-09-12 15:38:01 -07:00
vmstat.c	mm: vmscan: fix do_try_to_free_pages() livelock	2013-09-11 15:58:01 -07:00
zbud.c	mm/zbud: fix some trivial typos in comments	2013-09-11 15:57:35 -07:00
zswap.c	mm/zswap: use postorder iteration when destroying rbtree	2013-09-11 15:59:21 -07:00