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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-10-30 09:58:18 +0300 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-30 09:58:18 +0300 |
| commit | f0612bbc41f65f5a684f69d714a1a17a6f0f40c5 (patch) | |
| tree | 8c070070bb355843cfa4635643e9da7c2c4cd44a /include/linux/rwsem-spinlock.h | |
| parent | b0c4e148bd591629749d02a8fbc8d81c26d548cf (diff) | |
| parent | 81cfb8864c73230eb1c37753aba517db15cf4d8f (diff) | |
| download | linux-f0612bbc41f65f5a684f69d714a1a17a6f0f40c5.tar.xz | |
Merge branch 'upstream'
Diffstat (limited to 'include/linux/rwsem-spinlock.h')
| -rw-r--r-- | include/linux/rwsem-spinlock.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/rwsem-spinlock.h b/include/linux/rwsem-spinlock.h index b52a2af25f1f..f30f805080ae 100644 --- a/include/linux/rwsem-spinlock.h +++ b/include/linux/rwsem-spinlock.h @@ -61,5 +61,10 @@ extern void FASTCALL(__up_read(struct rw_semaphore *sem)); extern void FASTCALL(__up_write(struct rw_semaphore *sem)); extern void FASTCALL(__downgrade_write(struct rw_semaphore *sem)); +static inline int rwsem_is_locked(struct rw_semaphore *sem) +{ + return (sem->activity != 0); +} + #endif /* __KERNEL__ */ #endif /* _LINUX_RWSEM_SPINLOCK_H */ |