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

..

acpi

remove "struct subsystem" as it is no longer needed

2007-05-02 18:57:59 -07:00

asm-alpha

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-arm

Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

2007-05-06 13:20:10 -07:00

asm-arm26

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

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

asm-avr32

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-cris

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

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

asm-frv

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-generic

[PATCH] i386: Clean up ELF note generation

2007-05-02 19:27:17 +02:00

asm-h8300

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-i386

i386: use page allocator to allocate thread_info structure

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

asm-ia64

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-m32r

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-m68k

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-m68knommu

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-mips

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-parisc

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-powerpc

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-ppc

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

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

asm-s390

Introduce CONFIG_HAS_DMA

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

asm-sh

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-sh64

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-sparc

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

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

asm-sparc64

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-um

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

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

asm-v850

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

asm-x86_64

Revert "[PATCH] x86: __pa and __pa_symbol address space separation"

2007-05-07 08:44:24 -07:00

asm-xtensa

Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

2007-05-05 14:55:20 -07:00

crypto

[CRYPTO] cryptd: Add software async crypto daemon

2007-05-02 14:38:32 +10:00

keys

[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both

2007-04-26 15:48:28 -07:00

linux

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

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

math-emu

…

media

i2c: Cleanup the includes of <linux/i2c.h>

2007-05-01 23:26:29 +02:00

mtd

UBI: Unsorted Block Images

2007-04-27 14:23:33 +03:00

net

[MAC80211]: Add mac80211 wireless stack.

2007-05-05 11:45:53 -07:00

pcmcia

add new_id to PCMCIA drivers

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

rdma

PCI: Cleanup the includes of <linux/pci.h>

2007-05-02 19:02:35 -07:00

rxrpc

[AF_RXRPC]: Delete the old RxRPC code.

2007-04-26 15:55:48 -07:00

scsi

[SCSI] modalias for scsi devices

2007-04-17 18:15:04 -04:00

sound

…

video

…

Kbuild

…