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24f287e412
linux/arch
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David S. Miller 24f287e412 [SPARC64]: Implement atomic backoff. 
When the cpu count is high and contention hits an atomic object, the
processors can synchronize such that some cpus continually get knocked
out and cannot complete the atomic update.

So implement an exponential backoff when SMP.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-17 16:24:55 -07:00
..
alpha Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00
arm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup 2007-10-17 09:00:30 -07:00
avr32 Remove dma_cache_(wback|inv|wback_inv) functions 2007-10-17 08:42:57 -07:00
blackfin Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00
cris remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
frv remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
h8300 remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
i386 .gitignore update for x86 arch 2007-10-17 21:19:04 +02:00
ia64 [IA64] fix non-numa build 2007-10-17 14:28:38 -07:00
m32r remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
m68k remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
m68knommu remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
mips [MIPS] IP22: Fix hang due to messing with timer interrupt handler 2007-10-17 18:28:49 +01:00
parisc Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00
powerpc Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-10-17 09:05:55 -07:00
ppc Merge branch 'for-2.6.24' of git://git.secretlab.ca/git/linux-2.6-mpc52xx into merge 2007-10-17 22:31:13 +10:00
s390 remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
sh Remove dma_cache_(wback|inv|wback_inv) functions 2007-10-17 08:42:57 -07:00
sh64 Remove dma_cache_(wback|inv|wback_inv) functions 2007-10-17 08:42:57 -07:00
sparc remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
sparc64 [SPARC64]: Implement atomic backoff. 2007-10-17 16:24:55 -07:00
um remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
v850 remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
x86 Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86 2007-10-17 13:13:16 -07:00
x86_64 x86: configure HPET_EMULATE_RTC automatically 2007-10-17 20:16:35 +02:00
xtensa Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00