Heiko Carstens 8497695243 s390/spinlock: avoid yield to non existent cpu ... arch_spin_lock_wait_flags() checks if a spinlock is not held before trying a compare and swap instruction. If the lock is unlocked it tries the compare and swap instruction, however if a different cpu grabbed the lock in the meantime the instruction will fail as expected. Subsequently the arch_spin_lock_wait_flags() incorrectly tries to figure out if the cpu that holds the lock is running. However it is using the wrong cpu number for this (-1) and then will also yield the current cpu to the wrong cpu. Fix this by adding a missing continue statement. Fixes: 470ada6b1a ("s390/spinlock: refactor arch_spin_lock_wait[_flags]") Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2016-04-15 18:01:48 +02:00
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delay.c	s390/udelay: make udelay have busy loop semantics	2015-10-14 14:32:13 +02:00
find.c	s390/bitops: remove 31 bit related comments	2015-10-14 14:32:15 +02:00
Makefile	s390/xor: optimized xor routing using the XC instruction	2016-02-23 08:56:17 +01:00
mem.S	s390: remove "64" suffix from mem64.S and swsusp_asm64.S	2015-03-25 11:49:51 +01:00
probes.c	s390/uprobes: fix kprobes dependency	2014-10-17 14:45:51 +02:00
spinlock.c	s390/spinlock: avoid yield to non existent cpu	2016-04-15 18:01:48 +02:00
string.c	s390/string: provide asm lib functions for memcpy and memcmp	2012-09-26 15:44:50 +02:00
uaccess.c	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-09-03 15:46:07 -07:00
xor.c	s390/xor: optimized xor routing using the XC instruction	2016-02-23 08:56:17 +01:00