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| author |   Paul Mackerras <paulus@samba.org> | 2005-10-31 13:37:12 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-10-31 13:37:12 +1100 |
| commit | 23fd07750a789a66fe88cf173d52a18f1a387da4 (patch) | |
| tree | 06fdd6df35fdb835abdaa9b754d62f6b84b97250 /include/asm-ia64/rwsem.h | |
| parent | ppc: remove duplicate export of cur_cpu_spec (diff) | |
| parent | Merge master.kernel.org:/home/rmk/linux-2.6-serial (diff) | |
| download | linux-dev-23fd07750a789a66fe88cf173d52a18f1a387da4.tar.xz linux-dev-23fd07750a789a66fe88cf173d52a18f1a387da4.zip | |
Merge ../linux-2.6 by hand
Diffstat (limited to 'include/asm-ia64/rwsem.h')
| -rw-r--r-- | include/asm-ia64/rwsem.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-ia64/rwsem.h b/include/asm-ia64/rwsem.h index e18b5ab0cb75..1327c91ea39c 100644 --- a/include/asm-ia64/rwsem.h +++ b/include/asm-ia64/rwsem.h @@ -186,4 +186,9 @@ __downgrade_write (struct rw_semaphore *sem) #define rwsem_atomic_add(delta, sem) atomic64_add(delta, (atomic64_t *)(&(sem)->count)) #define rwsem_atomic_update(delta, sem) atomic64_add_return(delta, (atomic64_t *)(&(sem)->count)) +static inline int rwsem_is_locked(struct rw_semaphore *sem) +{ + return (sem->count != 0); +} + #endif /* _ASM_IA64_RWSEM_H */ |