Christian Ehrhardt 96567161de [PATCH] s390: Increase spinlock retry code performance ... Currently the code tries up to spin_retry times to grab a lock using the cs instruction. The cs instruction has exclusive access to a memory region and therefore invalidates the appropiate cache line of all other cpus. If there is contention on a lock this leads to cache line trashing. This can be avoided if we first check wether a cs instruction is likely to succeed before the instruction gets actually executed. Signed-off-by: Christian Ehrhardt <ehrhardt@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-03-09 19:47:38 -08:00
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appldata	[PATCH] s390: cleanup Kconfig	2006-01-06 08:33:53 -08:00
boot	[PATCH] use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh	2005-06-23 09:45:07 -07:00
crypto	[PATCH] s390: sha256 crypto code fix	2006-01-14 18:27:08 -08:00
kernel	[PATCH] flags parameter for linkat	2006-02-24 14:31:39 -08:00
lib	[PATCH] s390: Increase spinlock retry code performance	2006-03-09 19:47:38 -08:00
math-emu	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
mm	[PATCH] cmm NULL noise removal, __user annotations	2006-02-07 20:58:15 -05:00
oprofile	[PATCH] s390: add oprofile callgraph support	2006-01-06 08:33:50 -08:00
defconfig	[PATCH] s390: update default configuration	2006-02-11 21:41:12 -08:00
Kconfig	[PATCH] Introduce CONFIG_DEFAULT_MIGRATION_COST	2006-02-17 13:59:26 -08:00
Kconfig.debug	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
Makefile	[PATCH] s390: cleanup Kconfig	2006-01-06 08:33:53 -08:00