3c1fcfe229
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>
22 lines
436 B
C
22 lines
436 B
C
#ifndef __ASM_SPINLOCK_TYPES_H
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#define __ASM_SPINLOCK_TYPES_H
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#ifndef __LINUX_SPINLOCK_TYPES_H
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# error "please don't include this file directly"
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#endif
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typedef struct {
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volatile unsigned int owner_cpu;
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volatile unsigned int owner_pc;
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} __attribute__ ((aligned (4))) raw_spinlock_t;
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#define __RAW_SPIN_LOCK_UNLOCKED { 0 }
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typedef struct {
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volatile unsigned int lock;
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} raw_rwlock_t;
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#define __RAW_RW_LOCK_UNLOCKED { 0 }
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#endif
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