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
..
delay.c	[PATCH] s390: fix __delay implementation	2006-02-14 16:09:35 -08:00
Makefile
spinlock.c	[PATCH] s390: Increase spinlock retry code performance	2006-03-09 19:47:38 -08:00
string.c
uaccess64.S	[PATCH] s390: fix strnlen_user return value	2006-03-08 14:14:01 -08:00
uaccess.S	[PATCH] s390: fix strnlen_user return value	2006-03-08 14:14:01 -08:00