16afea0255
This is a resubmission of patches originally created by Ingo Molnar. The link below is the initial (?) posting of the patch. http://marc.theaimsgroup.com/?l=linux-kernel&m=115217423929806&w=2 Remove 'volatile' from spinlock_types as it causes GCC to generate bad code (see link) and locking should be used on kernel data. Signed-off-by: Art Haas <ahaas@airmail.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
21 lines
362 B
C
21 lines
362 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 slock;
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} raw_spinlock_t;
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#define __RAW_SPIN_LOCK_UNLOCKED { 1 }
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typedef struct {
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unsigned int lock;
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} raw_rwlock_t;
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#define __RAW_RW_LOCK_UNLOCKED { RW_LOCK_BIAS }
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#endif
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