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4 Commits
Author SHA1 Message Date
Peter Zijlstra 4fe87745a6 lockstat: hook into spinlock_t, rwlock_t, rwsem and mutex 
Call the new lockstat tracking functions from the various lock primitives.

Signed-off-by: Peter Zijlstra <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Acked-by: Jason Baron <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
 2007-07-19 10:04:49 -07:00
Pavel Emelianov 428e6ce023 Lockdep treats down_write_trylock like regular down_write 
This causes constructions like

down_write(&mm1->mmap_sem);
if (down_write_trylock(&mm2->mmap_sem)) {
       ...
       up_write(&mm2->mmap_sem);
}
up_write(&mm1->mmap_sem);

generate a lockdep warning about circular locking dependence.

Call rwsem_acquire() with trylock set to 1.

Cc: Ingo Molnar <[email protected]>
Cc: Arjan van de Ven <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
 2007-05-08 11:15:09 -07:00
Ingo Molnar 4ea2176dfa [PATCH] lockdep: prove rwsem locking correctness 
Use the lock validator framework to prove rwsem locking correctness.

Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Arjan van de Ven <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
 2006-07-03 15:27:04 -07:00
Ingo Molnar c4e05116a2 [PATCH] lockdep: clean up rwsems 
Clean up rwsems.

Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
 2006-07-03 15:27:01 -07:00