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e79bee24fd
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Shaohua Li e79bee24fd atomic: implement generic atomic_dec_if_positive() 
The x86 implementation of atomic_dec_if_positive is quite generic, so make
it available to all architectures.

This is needed for "swap: add a simple detector for inappropriate swapin
readahead".

[akpm@linux-foundation.org: do the "#define foo foo" trick in the conventional manner]
Signed-off-by: Shaohua Li <shli@fusionio.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Rik van Riel <riel@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michal Simek <monstr@monstr.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-09 16:22:46 +09:00
..
alpha mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00
arm mm: replace vma prio_tree with an interval tree 2012-10-09 16:22:39 +09:00
arm64 Kconfig: clean up the "#if defined(arch)" list for exception-trace sysctl entry 2012-10-09 16:22:14 +09:00
avr32 cross-arch: don't corrupt personality flags upon exec() 2012-10-06 03:04:47 +09:00
blackfin Kconfig: clean up the long arch list for the UID16 config option 2012-10-09 16:22:13 +09:00
c6x Merge branch 'uapi-prep' of git://git.infradead.org/users/dhowells/linux-headers 2012-10-07 07:55:10 +09:00
cris Kconfig: clean up the long arch list for the UID16 config option 2012-10-09 16:22:13 +09:00
frv Kconfig: clean up the long arch list for the DEBUG_BUGVERBOSE config option 2012-10-09 16:22:14 +09:00
h8300 Kconfig: clean up the long arch list for the UID16 config option 2012-10-09 16:22:13 +09:00
hexagon Merge branch 'uapi-prep' of git://git.infradead.org/users/dhowells/linux-headers 2012-10-07 07:55:10 +09:00
ia64 mm: hugetlb: add arch hook for clearing page flags before entering pool 2012-10-09 16:22:24 +09:00
m32r Kconfig: clean up the long arch list for the DEBUG_BUGVERBOSE config option 2012-10-09 16:22:14 +09:00
m68k Kconfig: clean up the long arch list for the DEBUG_BUGVERBOSE config option 2012-10-09 16:22:14 +09:00
microblaze atomic: implement generic atomic_dec_if_positive() 2012-10-09 16:22:46 +09:00
mips mm: hugetlb: add arch hook for clearing page flags before entering pool 2012-10-09 16:22:24 +09:00
mn10300 cross-arch: don't corrupt personality flags upon exec() 2012-10-06 03:04:47 +09:00
openrisc Merge branch 'uapi-prep' of git://git.infradead.org/users/dhowells/linux-headers 2012-10-07 07:55:10 +09:00
parisc mm: replace vma prio_tree with an interval tree 2012-10-09 16:22:39 +09:00
powerpc atomic: implement generic atomic_dec_if_positive() 2012-10-09 16:22:46 +09:00
s390 thp, s390: architecture backend for thp on s390 2012-10-09 16:22:31 +09:00
score Merge branch 'uapi-prep' of git://git.infradead.org/users/dhowells/linux-headers 2012-10-07 07:55:10 +09:00
sh mm: hugetlb: add arch hook for clearing page flags before entering pool 2012-10-09 16:22:24 +09:00
sparc mm: hugetlb: add arch hook for clearing page flags before entering pool 2012-10-09 16:22:24 +09:00
tile mm: hugetlb: add arch hook for clearing page flags before entering pool 2012-10-09 16:22:24 +09:00
um Kconfig: clean up the long arch list for the UID16 config option 2012-10-09 16:22:13 +09:00
unicore32 mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00
x86 atomic: implement generic atomic_dec_if_positive() 2012-10-09 16:22:46 +09:00
xtensa cross-arch: don't corrupt personality flags upon exec() 2012-10-06 03:04:47 +09:00
.gitignore
Kconfig thp, x86: introduce HAVE_ARCH_TRANSPARENT_HUGEPAGE 2012-10-09 16:22:29 +09:00