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author | Len Brown <len.brown@intel.com> | 2005-12-06 23:31:30 +0100 |
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committer | Len Brown <len.brown@intel.com> | 2005-12-06 23:31:30 +0100 |
commit | 3d5271f9883cba7b54762bc4fe027d4172f06db7 (patch) | |
tree | ab8a881a14478598a0c8bda0d26c62cdccfffd6d /include/asm-sh/rwsem.h | |
parent | [ACPI] 8250_acpi.c buildfix (diff) | |
parent | Auto-update from upstream (diff) | |
download | linux-3d5271f9883cba7b54762bc4fe027d4172f06db7.tar.xz linux-3d5271f9883cba7b54762bc4fe027d4172f06db7.zip |
Pull release into acpica branch
Diffstat (limited to 'include/asm-sh/rwsem.h')
-rw-r--r-- | include/asm-sh/rwsem.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-sh/rwsem.h b/include/asm-sh/rwsem.h index 1be4337f5259..0262d3d1e5e0 100644 --- a/include/asm-sh/rwsem.h +++ b/include/asm-sh/rwsem.h @@ -166,5 +166,10 @@ static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem) return atomic_add_return(delta, (atomic_t *)(&sem->count)); } +static inline int rwsem_is_locked(struct rw_semaphore *sem) +{ + return (sem->count != 0); +} + #endif /* __KERNEL__ */ #endif /* _ASM_SH_RWSEM_H */ |