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Johannes Weiner 7a0524cfc8 mm: memcg: remove unneeded checks from newpage_charge() 
All callsites pass in freshly allocated pages and a valid mm.  As a
result, all checks pertaining to the page's mapcount, page->mapping or the
fallback to init_mm are unneeded.

Signed-off-by: Johannes Weiner <jweiner@redhat.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-12 20:13:06 -08:00
..
backing-dev.c
freezer: implement and use kthread_freezable_should_stop()
2011-11-21 12:32:23 -08:00
bootmem.c
mm: bootmem: try harder to free pages in bulk
2012-01-10 16:30:45 -08:00
bounce.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
cleancache.c
mm: cleancache core ops functions and config
2011-05-26 10:01:36 -06:00
compaction.c
mm: compaction: push isolate search base of compact control one pfn ahead
2012-01-10 16:30:44 -08:00
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: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
filemap.c
memcg: add mem_cgroup_replace_page_cache() to fix LRU issue
2012-01-12 20:13:04 -08:00
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
memcg: make mem_cgroup_split_huge_fixup() more efficient
2012-01-12 20:13:05 -08:00
hugetlb.c
mm/hugetlb.c: avoid bogus counter of surplus huge page
2012-01-10 16:30:45 -08:00
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
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
ksm.c
oom: fix race while temporarily setting current's oom_score_adj
2011-10-31 17:30:45 -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: Reimplement memblock allocation using reverse free area iterator
2011-12-08 10:22:09 -08:00
memcontrol.c
mm: memcg: remove unneeded checks from newpage_charge()
2012-01-12 20:13:06 -08:00
memory_hotplug.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
memory-failure.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
memory.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
mempolicy.c
mm/mempolicy.c: mpol_equal(): use bool
2012-01-10 16:30:45 -08:00
mempool.c
mempool: fix first round failure behavior
2012-01-10 16:30:45 -08:00
migrate.c
mm/migrate.c: remove the unused macro lru_to_page
2012-01-10 16:30:46 -08:00
mincore.c
mm: clarify the radix_tree exceptional cases
2011-08-03 14:25:24 -10:00
mlock.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
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: simplify find_vma_prev()
2012-01-10 16:30:44 -08:00
mmu_context.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
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
thp: mprotect: transparent huge page support
2011-01-13 17:32:44 -08:00
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
sanitize vfs_fsync calling conventions
2010-05-21 18:31:21 -04:00
nobootmem.c
Merge branch 'master' into x86/memblock
2011-11-28 09:46:22 -08:00
nommu.c
xen: map foreign pages for shared rings by updating the PTEs directly
2011-11-16 12:13:08 -05:00
oom_kill.c
mm: unify remaining mem_cont, mem, etc. variable names to memcg
2012-01-12 20:13:06 -08:00
page_alloc.c
mm: collect LRU list heads into struct lruvec
2012-01-12 20:13:05 -08:00
page_cgroup.c
mm: page_cgroup: check page_cgroup arrays in lookup_page_cgroup() only when necessary
2012-01-12 20:13:06 -08:00
page_io.c
block: kill off REQ_UNPLUG
2011-03-10 08:52:27 +01:00
page_isolation.c
mm: page_isolation: codeclean fix comment and rm unneeded val init
2010-10-26 16:52:11 -07:00
page-writeback.c
Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux
2012-01-10 16:59:59 -08:00
pagewalk.c
pagewalk: fix code comment for THP
2011-07-25 20:57:09 -07:00
percpu-km.c
percpu: clear memory allocated with the km allocator
2010-10-02 10:28:42 +03:00
percpu-vm.c
percpu: fix chunk range calculation
2011-11-22 08:09:46 -08:00
percpu.c
percpu: fix per_cpu_ptr_to_phys() handling of non-page-aligned addresses
2011-12-15 11:41:40 -08:00
pgtable-generic.c
mm/pgtable-generic.c: fix CONFIG_SWAP=n build
2011-01-26 10:49:58 +10:00
prio_tree.c
sanitize <linux/prefetch.h> usage
2011-05-20 12:50:29 -07:00
process_vm_access.c
Cross Memory Attach
2011-10-31 17:30:44 -07:00
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
mm: unify remaining mem_cont, mem, etc. variable names to memcg
2012-01-12 20:13:06 -08:00
shmem.c
vfs: switch ->show_options() to struct dentry *
2012-01-06 23:19:54 -05:00
slab.c
Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
2012-01-11 18:52:23 -08:00
slob.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
slub.c
mm,x86,um: move CMPXCHG_DOUBLE config option
2012-01-12 20:13:03 -08:00
sparse-vmemmap.c
mm: delete various needless include <linux/module.h>
2011-10-31 09:20:11 -04:00
sparse.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
swap_state.c
fs: move code out of buffer.c
2012-01-03 22:54:07 -05:00
swap.c
mm: make per-memcg LRU lists exclusive
2012-01-12 20:13:05 -08:00
swapfile.c
mm: unify remaining mem_cont, mem, etc. variable names to memcg
2012-01-12 20:13:06 -08:00
thrash.c
mm/thrash.c: quiet sparse noise
2011-10-31 17:30:50 -07:00
truncate.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
util.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
vmalloc.c
mm/vmalloc.c: change void* into explict vm_struct*
2012-01-10 16:30:46 -08:00
vmscan.c
mm: unify remaining mem_cont, mem, etc. variable names to memcg
2012-01-12 20:13:06 -08:00
vmstat.c
mm,x86,um: move CMPXCHG_LOCAL config option
2012-01-12 20:13:03 -08:00