diff options
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-09-30 23:27:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-01 00:39:22 -0700 |
| commit | 3c1fcfe229e99752c74efb945a4a3f560be04204 (patch) | |
| tree | 44085d9b599e06a92426141811a6f712beac17aa /include/asm-s390/spinlock_types.h | |
| parent | cdc39363d33506b0e067d41fc91f89d186bdf7f7 (diff) | |
| download | linux-3c1fcfe229e99752c74efb945a4a3f560be04204.tar.gz | |
[PATCH] Directed yield: direct yield of spinlocks for s390.
Use the new diagnose 0x9c in the spinlock implementation for s390. It
yields the remaining timeslice of the virtual cpu that tries to acquire a
lock to the virtual cpu that is the current holder of the lock.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-s390/spinlock_types.h')
| -rw-r--r-- | include/asm-s390/spinlock_types.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/asm-s390/spinlock_types.h b/include/asm-s390/spinlock_types.h index f79a2216204f52..b7ac13f7aa373e 100644 --- a/include/asm-s390/spinlock_types.h +++ b/include/asm-s390/spinlock_types.h @@ -6,16 +6,16 @@ #endif typedef struct { - volatile unsigned int lock; + volatile unsigned int owner_cpu; + volatile unsigned int owner_pc; } __attribute__ ((aligned (4))) raw_spinlock_t; #define __RAW_SPIN_LOCK_UNLOCKED { 0 } typedef struct { volatile unsigned int lock; - volatile unsigned int owner_pc; } raw_rwlock_t; -#define __RAW_RW_LOCK_UNLOCKED { 0, 0 } +#define __RAW_RW_LOCK_UNLOCKED { 0 } #endif |