Christoph Lameter 6d7779538f mm: optimize compound_head() by avoiding a shared page flag ...

The patch adds PageTail(page) and PageHead(page) to check if a page is the
head or the tail of a compound page.  This is done by masking the two bits
describing the state of a compound page and then comparing them.  So one
comparision and a branch instead of two bit checks and two branches.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2007-05-07 12:12:53 -07:00

..

allocpercpu.c

[PATCH] Allow NULL pointers in percpu_free

2006-12-07 08:39:22 -08:00

backing-dev.c

[PATCH] nfs: fix congestion control

2007-03-16 19:25:05 -07:00

bootmem.c

[PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols

2006-12-07 08:39:44 -08:00

bounce.c

block: blk_max_pfn is somtimes wrong

2007-03-27 08:52:47 +02:00

fadvise.c

[PATCH] mm: change uses of f_{dentry,vfsmnt} to use f_path

2006-12-08 08:28:43 -08:00

filemap_xip.c

[PATCH] mm: fix xip issue with /dev/zero

2007-03-29 08:22:26 -07:00

filemap.c

readahead: code cleanup

2007-05-07 12:12:52 -07:00

filemap.h

Remove all inclusions of <linux/config.h>

2006-10-04 03:38:54 -04:00

fremap.c

[PATCH] mm: more rmap debugging

2006-12-22 08:55:49 -08:00

highmem.c

[PATCH] i386: PARAVIRT: add kmap_atomic_pte for mapping highpte pages

2007-05-02 19:27:15 +02:00

hugetlb.c

[PATCH] hugetlb: preserve hugetlb pte dirty state

2007-02-09 09:25:46 -08:00

internal.h

Make page->private usable in compound pages

2007-05-07 12:12:53 -07:00

Kconfig

[PATCH] Set CONFIG_ZONE_DMA for arches with GENERIC_ISA_DMA

2007-02-11 10:51:19 -08:00

madvise.c

[PATCH] holepunch: fix mmap_sem i_mutex deadlock

2007-03-29 08:22:26 -07:00

Makefile

SLUB core

2007-05-07 12:12:53 -07:00

memory_hotplug.c

[PATCH] Fix sparsemem on Cell

2007-01-11 18:18:20 -08:00

memory.c

Add unitialized_var() macro for suppressing gcc warnings

2007-05-07 12:12:52 -07:00

mempolicy.c

[PATCH] Page migration: Fix vma flag checking

2007-03-05 07:57:51 -08:00

mempool.c

[PATCH] Numerous fixes to kernel-doc info in source files.

2007-02-11 10:51:32 -08:00

migrate.c

page migration: fix NR_FILE_PAGES accounting

2007-04-24 08:23:08 -07:00

mincore.c

[PATCH] mincore: vma crossing fix

2007-02-15 09:57:03 -08:00

mlock.c

[PATCH] mlock cleanup

2006-12-07 08:39:22 -08:00

mmap.c

[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction

2007-05-02 19:27:14 +02:00

mmzone.c

[PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols

2006-12-07 08:39:44 -08:00

mprotect.c

[PATCH] paravirt: lazy mmu mode hooks.patch

2006-10-01 00:39:33 -07:00

mremap.c

[PATCH] mm: mremap correct rmap accounting

2007-01-30 08:33:32 -08:00

msync.c

[PATCH] mm: msync() cleanup

2006-09-26 08:48:45 -07:00

nommu.c

[PATCH] nommu: fix bug ip_conntrack does not work on nommu

2007-04-12 15:31:42 -07:00

oom_kill.c

allow oom_adj of saintly processes

2007-05-07 12:12:51 -07:00

page_alloc.c

mm: optimize compound_head() by avoiding a shared page flag

2007-05-07 12:12:53 -07:00

page_io.c

[PATCH] swsusp: use block device offsets to identify swap locations

2006-12-07 08:39:27 -08:00

page-writeback.c

Use ZVC counters to establish exact size of dirtyable pages

2007-05-07 12:12:51 -07:00

pdflush.c

[PATCH] Add include/linux/freezer.h and move definitions from sched.h

2006-12-07 08:39:27 -08:00

prio_tree.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

readahead.c

readahead: code cleanup

2007-05-07 12:12:52 -07:00

rmap.c

[S390] split page_test_and_clear_dirty.

2007-04-27 16:01:46 +02:00

shmem_acl.c

[PATCH] Fix typos in mm/shmem_acl.c

2006-10-11 11:14:23 -07:00

shmem.c

[PATCH] holepunch: fix disconnected pages after second truncate

2007-03-29 08:22:25 -07:00

slab.c

Make page->private usable in compound pages

2007-05-07 12:12:53 -07:00

slob.c

slab: introduce krealloc

2007-05-07 12:12:50 -07:00

slub.c

Make page->private usable in compound pages

2007-05-07 12:12:53 -07:00

sparse.c

[PATCH] numa node ids are int, page_to_nid and zone_to_nid should return int

2006-12-07 08:39:23 -08:00

swap_state.c

[PATCH] lockdep: locking init debugging improvement

2006-07-03 15:27:02 -07:00

swap.c

Make page->private usable in compound pages

2007-05-07 12:12:53 -07:00

swapfile.c

mm: make read_cache_page synchronous

2007-05-07 12:12:51 -07:00

thrash.c

[PATCH] make mm/thrash.c:global_faults static

2006-12-07 08:39:22 -08:00

tiny-shmem.c

[PATCH] mm/{,tiny-}shmem.c cleanups

2007-03-01 14:53:35 -08:00

truncate.c

[PATCH] VM: invalidate_inode_pages2_range() should not exit early

2007-03-01 14:53:39 -08:00

util.c

[PATCH] slab: clean up leak tracking ifdefs a little bit

2006-10-04 07:55:13 -07:00

vmalloc.c

[PATCH] x86-64: Fix vmalloc_32 to really allocate <4GB on 64bit platforms

2007-05-02 19:27:12 +02:00

vmscan.c

[PATCH] throttle_vm_writeout(): don't loop on GFP_NOFS and GFP_NOIO allocations

2007-03-01 14:53:38 -08:00

vmstat.c

[PATCH] optional ZONE_DMA: optional ZONE_DMA in the VM

2007-02-11 10:51:18 -08:00