diff options
| author | Ingo Molnar <mingo@kernel.org> | 2013-01-24 12:47:48 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-01-24 12:47:48 +0100 |
| commit | befddb21c845f8fb49e637997891ef97c6a869dc (patch) | |
| tree | 0e7629123184f2dd50291ad6d477b894175f0f26 /include/linux/rwsem.h | |
| parent | e716efde75267eab919cdb2bef5b2cb77f305326 (diff) | |
| parent | 7d1f9aeff1ee4a20b1aeb377dd0f579fe9647619 (diff) | |
Merge tag 'v3.8-rc4' into irq/core
Merge Linux 3.8-rc4 before pulling in new commits - we were on an old v3.7 base.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/rwsem.h')
| -rw-r--r-- | include/linux/rwsem.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 54bd7cd7ecbd..8da67d625e13 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -125,8 +125,17 @@ extern void downgrade_write(struct rw_semaphore *sem); */ extern void down_read_nested(struct rw_semaphore *sem, int subclass); extern void down_write_nested(struct rw_semaphore *sem, int subclass); +extern void _down_write_nest_lock(struct rw_semaphore *sem, struct lockdep_map *nest_lock); + +# define down_write_nest_lock(sem, nest_lock) \ +do { \ + typecheck(struct lockdep_map *, &(nest_lock)->dep_map); \ + _down_write_nest_lock(sem, &(nest_lock)->dep_map); \ +} while (0); + #else # define down_read_nested(sem, subclass) down_read(sem) +# define down_write_nest_lock(sem, nest_lock) down_write(sem) # define down_write_nested(sem, subclass) down_write(sem) #endif |