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authorLen Brown <len.brown@intel.com>2005-12-06 23:31:30 +0100
committerLen Brown <len.brown@intel.com>2005-12-06 23:31:30 +0100
commit3d5271f9883cba7b54762bc4fe027d4172f06db7 (patch)
treeab8a881a14478598a0c8bda0d26c62cdccfffd6d /include/asm-sh/rwsem.h
parent[ACPI] 8250_acpi.c buildfix (diff)
parentAuto-update from upstream (diff)
downloadlinux-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.h5
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 */