diff options
| author |   Kirill Tkhai <ktkhai@virtuozzo.com> | 2017-09-29 19:06:38 +0300 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-10-10 11:50:16 +0200 |
| commit | 76f8507f7a6442215df19de74f07eabca2462f1e (patch) | |
| tree | 89d418742e8c8c6480ca3a478b77f53338bc2672 /include/linux/rwsem.h | |
| parent | locking/arch, x86: Add __down_read_killable() (diff) | |
| download | linux-dev-76f8507f7a6442215df19de74f07eabca2462f1e.tar.xz linux-dev-76f8507f7a6442215df19de74f07eabca2462f1e.zip | |
locking/rwsem: Add down_read_killable()
Similar to down_read() and down_write_killable(),
add killable version of down_read(), based on
__down_read_killable() function, added in previous
patches.
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: arnd@arndb.de
Cc: avagin@virtuozzo.com
Cc: davem@davemloft.net
Cc: fenghua.yu@intel.com
Cc: gorcunov@virtuozzo.com
Cc: heiko.carstens@de.ibm.com
Cc: hpa@zytor.com
Cc: ink@jurassic.park.msu.ru
Cc: mattst88@gmail.com
Cc: rientjes@google.com
Cc: rth@twiddle.net
Cc: schwidefsky@de.ibm.com
Cc: tony.luck@intel.com
Cc: viro@zeniv.linux.org.uk
Link: http://lkml.kernel.org/r/150670119884.23930.2585570605960763239.stgit@localhost.localdomain
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/rwsem.h')
| -rw-r--r-- | include/linux/rwsem.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 0ad7318ff299..6ac8ee5f15dd 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -111,6 +111,7 @@ static inline int rwsem_is_contended(struct rw_semaphore *sem) * lock for reading */ extern void down_read(struct rw_semaphore *sem); +extern int __must_check down_read_killable(struct rw_semaphore *sem); /* * trylock for reading -- returns 1 if successful, 0 if contention |