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[PATCH] Fix sparse annotation of spin unlock macros in one case

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SMP systems without premption and spinlock debugging enabled use unlock
macros that don't tell sparse that the lock is being released.  Add sparse
annotations in this case.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Pavel Roskin 2007-02-10 01:46:37 -08:00 committed by Linus Torvalds
parent aa0f030374
commit c75fb88dbc
1 changed files with 24 additions and 9 deletions
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33
include/linux/spinlock.h
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@ -228,15 +228,30 @@ do { \
# define read_unlock_irq(lock) _read_unlock_irq(lock) # define read_unlock_irq(lock) _read_unlock_irq(lock)
# define write_unlock_irq(lock) _write_unlock_irq(lock) # define write_unlock_irq(lock) _write_unlock_irq(lock)
#else #else
# define spin_unlock(lock) __raw_spin_unlock(&(lock)->raw_lock) # define spin_unlock(lock) \
# define read_unlock(lock) __raw_read_unlock(&(lock)->raw_lock) do {__raw_spin_unlock(&(lock)->raw_lock); __release(lock); } while (0)
# define write_unlock(lock) __raw_write_unlock(&(lock)->raw_lock) # define read_unlock(lock) \
# define spin_unlock_irq(lock) \ do {__raw_read_unlock(&(lock)->raw_lock); __release(lock); } while (0)
do { __raw_spin_unlock(&(lock)->raw_lock); local_irq_enable(); } while (0) # define write_unlock(lock) \
# define read_unlock_irq(lock) \ do {__raw_write_unlock(&(lock)->raw_lock); __release(lock); } while (0)
do { __raw_read_unlock(&(lock)->raw_lock); local_irq_enable(); } while (0) # define spin_unlock_irq(lock) \
# define write_unlock_irq(lock) \ do { \
do { __raw_write_unlock(&(lock)->raw_lock); local_irq_enable(); } while (0) __raw_spin_unlock(&(lock)->raw_lock); \
__release(lock); \
local_irq_enable(); \
} while (0)
# define read_unlock_irq(lock) \
do { \
__raw_read_unlock(&(lock)->raw_lock); \
__release(lock); \
local_irq_enable(); \
} while (0)
# define write_unlock_irq(lock) \
do { \
__raw_write_unlock(&(lock)->raw_lock); \
__release(lock); \
local_irq_enable(); \
} while (0)
#endif #endif
#define spin_unlock_irqrestore(lock, flags) \ #define spin_unlock_irqrestore(lock, flags) \