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| author | Marc Zyngier <marc.zyngier@arm.com> | 2013-02-11 19:03:52 +0000 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2013-02-11 19:03:52 +0000 |
| commit | 9ae9e2535d7dd1c21d6a7db1a7f2fc507a5e4080 (patch) | |
| tree | f059571830a159f05b8cdf4ec354b01ca7d6bc45 /include/linux/rwsem.h | |
| parent | 75431f9d7335daf7fb9e72b3a1539ce610142618 (diff) | |
| parent | 9e02e394c7d7fdc2570a73fb7fc6da3c79f6db2a (diff) | |
Merge branch 'for-arm-soc/arch-timers' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into kvm-arm/timer
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 |