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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2007-07-19 01:48:58 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 10:04:49 -0700
commit4fe87745a6722d42ff27a60768c77958fa1fc498 (patch)
treeadb116303fda951e0f7fc997db5de683e1bd8527 /kernel/rwsem.c
parentc46261de0d98372112d8edf16f74ce418a268d46 (diff)
downloadop-kernel-dev-4fe87745a6722d42ff27a60768c77958fa1fc498.zip
op-kernel-dev-4fe87745a6722d42ff27a60768c77958fa1fc498.tar.gz
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 <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/rwsem.c')
-rw-r--r--kernel/rwsem.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/rwsem.c b/kernel/rwsem.c
index 9a87886..1ec620c0 100644
--- a/kernel/rwsem.c
+++ b/kernel/rwsem.c
@@ -20,7 +20,7 @@ void down_read(struct rw_semaphore *sem)
might_sleep();
rwsem_acquire_read(&sem->dep_map, 0, 0, _RET_IP_);
- __down_read(sem);
+ LOCK_CONTENDED(sem, __down_read_trylock, __down_read);
}
EXPORT_SYMBOL(down_read);
@@ -47,7 +47,7 @@ void down_write(struct rw_semaphore *sem)
might_sleep();
rwsem_acquire(&sem->dep_map, 0, 0, _RET_IP_);
- __down_write(sem);
+ LOCK_CONTENDED(sem, __down_write_trylock, __down_write);
}
EXPORT_SYMBOL(down_write);
@@ -111,7 +111,7 @@ void down_read_nested(struct rw_semaphore *sem, int subclass)
might_sleep();
rwsem_acquire_read(&sem->dep_map, subclass, 0, _RET_IP_);
- __down_read(sem);
+ LOCK_CONTENDED(sem, __down_read_trylock, __down_read);
}
EXPORT_SYMBOL(down_read_nested);
@@ -130,7 +130,7 @@ void down_write_nested(struct rw_semaphore *sem, int subclass)
might_sleep();
rwsem_acquire(&sem->dep_map, subclass, 0, _RET_IP_);
- __down_write_nested(sem, subclass);
+ LOCK_CONTENDED(sem, __down_write_trylock, __down_write);
}
EXPORT_SYMBOL(down_write_nested);
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