Fernando Luis Vazquez Cao 0753b0ef3b memcg: do not recalculate section unnecessarily in init_section_page_cgroup ...

In init_section_page_cgroup() the section a given pfn belongs to is
calculated at the top of the function and, despite the fact that the
pfn/section correspondence does not change, it is recalculated further
down the same function.  By computing this just once and reusing that
value we save some bytes in the object file and do not waste CPU cycles.

Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2009-01-08 08:31:04 -08:00

..

allocpercpu.c

mm/allocpercpu.c: make 4 functions static

2008-07-26 12:00:12 -07:00

backing-dev.c

Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-01-06 17:10:04 -08:00

bootmem.c

bootmem: print request details before BUG_ON(them)

2009-01-06 15:59:10 -08:00

bounce.c

bounce: don't rely on a zeroed bio_vec list

2008-12-29 08:29:52 +01:00

dmapool.c

dmapool: enable debugging for CONFIG_SLUB_DEBUG_ON too

2008-04-28 08:58:20 -07:00

fadvise.c

Remove Andrew Morton's old email accounts

2008-10-16 11:21:32 -07:00

failslab.c

SLUB: failslab support

2008-12-29 11:27:46 +02:00

filemap_xip.c

badpage: remove vma from page_remove_rmap

2009-01-06 15:59:07 -08:00

filemap.c

mm: pagecache gfp flags fix

2009-01-06 15:59:09 -08:00

fremap.c

badpage: remove vma from page_remove_rmap

2009-01-06 15:59:07 -08:00

highmem.c

x86, pat: avoid highmem cache attribute aliasing

2008-08-15 17:22:57 +02:00

hugetlb.c

mm: hugetlb: remove redundant `if' operation

2009-01-06 15:59:10 -08:00

internal.h

mm: make get_user_pages() interruptible

2009-01-06 15:59:08 -08:00

Kconfig

Remove obsolete CONFIG_RESOURCES_64BIT

2009-01-06 15:59:14 -08:00

maccess.c

kgdb: fix optional arch functions and probe_kernel_*

2008-04-17 20:05:39 +02:00

madvise.c

madvise: update function comment of madvise_dontneed

2008-07-30 09:41:45 -07:00

Makefile

shmem: unify regular and tiny shmem

2009-01-06 15:59:08 -08:00

memcontrol.c

memcg: simple migration handling

2009-01-08 08:31:04 -08:00

memory_hotplug.c

mm: remove GFP_HIGHUSER_PAGECACHE

2009-01-06 15:59:01 -08:00

memory.c

memcg: fix gfp_mask of callers of charge

2009-01-08 08:31:04 -08:00

mempolicy.c

Merge branch 'master' into next

2008-11-14 11:29:12 +11:00

mempool.c

spelling fixes: mm/

2007-10-20 01:27:18 +02:00

migrate.c

memcg: simple migration handling

2009-01-08 08:31:04 -08:00

mincore.c

mm: remove nopage

2008-04-28 08:58:18 -07:00

mlock.c

mm: make get_user_pages() interruptible

2009-01-06 15:59:08 -08:00

mm_init.c

mm: mminit_loglevel cannot be __meminitdata anymore

2008-08-20 15:40:30 -07:00

mmap.c

mm: check for no mmaps in exit_mmap()

2009-01-06 15:59:10 -08:00

mmu_notifier.c

mmu-notifiers: core

2008-07-28 16:30:21 -07:00

mmzone.c

mm: mark the correct zone as full when scanning zonelists

2008-09-13 14:41:52 -07:00

mprotect.c

mm: cleanup: remove #ifdef CONFIG_MIGRATION

2009-01-06 15:59:00 -08:00

mremap.c

mm: update my address

2009-01-05 17:44:42 -08:00

msync.c

add a vfs_fsync helper

2009-01-05 11:54:28 -05:00

nommu.c

inode->i_op is never NULL

2009-01-05 11:54:28 -05:00

oom_kill.c

oom: print triggering task's cpuset and mems allowed

2009-01-06 15:58:59 -08:00

page_alloc.c

mm: remove CONFIG_OUT_OF_LINE_PFN_TO_PAGE

2009-01-06 15:59:10 -08:00

page_cgroup.c

memcg: do not recalculate section unnecessarily in init_section_page_cgroup

2009-01-08 08:31:04 -08:00

page_io.c

mm: try_to_free_swap replaces remove_exclusive_swap_page

2009-01-06 15:59:03 -08:00

page_isolation.c

memory hotplug: fix page_zone() calculation in test_pages_isolated()

2008-11-06 15:41:19 -08:00

page-writeback.c

mm: add dirty_background_bytes and dirty_bytes sysctls

2009-01-06 15:59:03 -08:00

pagewalk.c

pagemap: pass mm into pagewalkers

2008-06-12 18:05:41 -07:00

pdflush.c

cpumask: convert mm/

2009-01-01 10:12:29 +10:30

prio_tree.c

spelling fixes: mm/

2007-10-20 01:27:18 +02:00

quicklist.c

mm: size of quicklists shouldn't be proportional to the number of CPUs

2008-09-02 19:21:38 -07:00

readahead.c

vmscan: split LRU lists into anon & file sets

2008-10-20 08:50:25 -07:00

rmap.c

badpage: remove vma from page_remove_rmap

2009-01-06 15:59:07 -08:00

shmem_acl.c

[PATCH] sanitize ->permission() prototype

2008-07-26 20:53:14 -04:00

shmem.c

memcg: fix gfp_mask of callers of charge

2009-01-08 08:31:04 -08:00

slab.c

cpumask: convert mm/

2009-01-01 10:12:29 +10:30

slob.c

slob: do not pass the SLAB flags as GFP in kmem_cache_create()

2008-12-15 16:27:06 -08:00

slub.c

trivial: fix an -> a typos in documentation and comments

2009-01-06 11:28:07 +01:00

sparse-vmemmap.c

vmemmap: warn about page_structs with remote distance

2008-11-06 15:41:19 -08:00

sparse.c

meminit section warnings

2008-11-30 10:03:35 -08:00

swap_state.c

mm: remove gfp_mask from add_to_swap

2009-01-06 15:59:04 -08:00

swap.c

mm: try_to_free_swap replaces remove_exclusive_swap_page

2009-01-06 15:59:03 -08:00

swapfile.c

memcg: fix gfp_mask of callers of charge

2009-01-08 08:31:04 -08:00

thrash.c

Bug in mm/thrash.c function grab_swap_token()

2007-05-11 08:29:32 -07:00

truncate.c

mmap: handle mlocked pages during map, remap, unmap

2008-10-20 08:52:31 -07:00

util.c

mm: Make generic weak get_user_pages_fast and EXPORT_GPL it

2008-08-12 17:52:53 +10:00

vmalloc.c

mm: vmalloc make lazy unmapping configurable

2009-01-06 15:59:01 -08:00

vmscan.c

mm: stop kswapd's infinite loop at high order allocation

2009-01-06 15:59:10 -08:00

vmstat.c

cpumask: convert mm/

2009-01-01 10:12:29 +10:30