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Allow rwlocks to re-enable interrupts

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Pass the original flags to rwlock arch-code, so that it can re-enable
interrupts if implemented for that architecture.

Initially, make __raw_read_lock_flags and __raw_write_lock_flags stubs
which just do the same thing as non-flags variants.

Signed-off-by: Petr Tesarik <[email protected]>
Signed-off-by: Robin Holt <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Cc: <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Cc: "Luck, Tony" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Robin Holt 2009-04-02 16:59:46 -07:00 • committed by Linus Torvalds
commit f5f7eac41d
15 changed files with 45 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

2
arch/cris/include/arch-v32/arch/spinlock.h
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@ -121,6 +121,8 @@ static inline int __raw_write_trylock(raw_rwlock_t *rw)
return 1;
}
#define _raw_read_lock_flags(lock, flags) _raw_read_lock(lock)
#define _raw_write_lock_flags(lock, flags) _raw_write_lock(lock)
#define _raw_spin_relax(lock) cpu_relax()
#define _raw_read_relax(lock) cpu_relax()