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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-09-01 05:21:59 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-10-06 20:24:51 +0200 |
| commit | 302707fd7cd341a23dbc448a335d432ad0069c20 (patch) | |
| tree | 4c0c8f2d12e9ec61aa0a24b35854e03cca66ab41 /kernel/locking/percpu-rwsem.c | |
| parent | locktorture: Support rtmutex torturing (diff) | |
| download | linux-302707fd7cd341a23dbc448a335d432ad0069c20.tar.xz linux-302707fd7cd341a23dbc448a335d432ad0069c20.zip | |
locking/percpu-rwsem: Export symbols for locktorture
This commit exports percpu_down_read(), percpu_down_write(),
__percpu_init_rwsem(), percpu_up_read(), and percpu_up_write() to allow
locktorture to test them when built as a module.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'kernel/locking/percpu-rwsem.c')
| -rw-r--r-- | kernel/locking/percpu-rwsem.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/locking/percpu-rwsem.c b/kernel/locking/percpu-rwsem.c index f32567254867..e2621fbbcbd1 100644 --- a/kernel/locking/percpu-rwsem.c +++ b/kernel/locking/percpu-rwsem.c @@ -22,6 +22,7 @@ int __percpu_init_rwsem(struct percpu_rw_semaphore *brw, init_waitqueue_head(&brw->write_waitq); return 0; } +EXPORT_SYMBOL_GPL(__percpu_init_rwsem); void percpu_free_rwsem(struct percpu_rw_semaphore *brw) { @@ -87,6 +88,7 @@ void percpu_down_read(struct percpu_rw_semaphore *brw) /* avoid up_read()->rwsem_release() */ __up_read(&brw->rw_sem); } +EXPORT_SYMBOL_GPL(percpu_down_read); int percpu_down_read_trylock(struct percpu_rw_semaphore *brw) { @@ -112,6 +114,7 @@ void percpu_up_read(struct percpu_rw_semaphore *brw) if (atomic_dec_and_test(&brw->slow_read_ctr)) wake_up_all(&brw->write_waitq); } +EXPORT_SYMBOL_GPL(percpu_up_read); static int clear_fast_ctr(struct percpu_rw_semaphore *brw) { @@ -163,6 +166,7 @@ void percpu_down_write(struct percpu_rw_semaphore *brw) /* wait for all readers to complete their percpu_up_read() */ wait_event(brw->write_waitq, !atomic_read(&brw->slow_read_ctr)); } +EXPORT_SYMBOL_GPL(percpu_down_write); void percpu_up_write(struct percpu_rw_semaphore *brw) { @@ -176,3 +180,4 @@ void percpu_up_write(struct percpu_rw_semaphore *brw) /* the last writer unblocks update_fast_ctr() */ atomic_dec(&brw->write_ctr); } +EXPORT_SYMBOL_GPL(percpu_up_write); |