d59b93da5e
Add an owner field to the arch_rwlock_t to be able to pass the timeslice of a virtual CPU with diagnose 0x9c to the lock owner in case the rwlock is write-locked. The undirected yield in case the rwlock is acquired writable but the lock is read-locked is removed. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
22 lines
414 B
C
22 lines
414 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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unsigned int lock;
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} __attribute__ ((aligned (4))) arch_spinlock_t;
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#define __ARCH_SPIN_LOCK_UNLOCKED { .lock = 0, }
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typedef struct {
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unsigned int lock;
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unsigned int owner;
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} arch_rwlock_t;
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#define __ARCH_RW_LOCK_UNLOCKED { 0 }
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#endif
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