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authorNayeemahmed Badebade <itachi.opsrc@gmail.com>2016-09-19 02:48:19 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-09-20 13:23:40 +0200
commita2921e2fc026718a6b2694c0f61cb0d58f7f4c77 (patch)
tree67b6a8d73fe0d4855298322da7d049255c3262fd /drivers/staging/lustre/lustre
parent024931694730a2ad31bc1e7c58a028abe441180b (diff)
staging: lustre: lustre/ldlm: Fixed sparse warnings
Added __acquires / __releases sparse locking annotations to lock_res_and_lock() and unlock_res_and_lock() functions in l_lock.c, to fix below sparse warnings: l_lock.c:47:22: warning: context imbalance in 'lock_res_and_lock' - wrong count at exit l_lock.c:61:6: warning: context imbalance in 'unlock_res_and_lock' - unexpected unlock Signed-off-by: Nayeemahmed Badebade <itachi.opsrc@gmail.com> Reviewed-by: James Simmons <jsimmons@infradead.org> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/lustre/lustre')
-rw-r--r--drivers/staging/lustre/lustre/ldlm/l_lock.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/staging/lustre/lustre/ldlm/l_lock.c b/drivers/staging/lustre/lustre/ldlm/l_lock.c
index ea8840cb9056..3845f386f1db 100644
--- a/drivers/staging/lustre/lustre/ldlm/l_lock.c
+++ b/drivers/staging/lustre/lustre/ldlm/l_lock.c
@@ -45,6 +45,8 @@
* being an atomic operation.
*/
struct ldlm_resource *lock_res_and_lock(struct ldlm_lock *lock)
+ __acquires(&lock->l_lock)
+ __acquires(&lock->l_resource->lr_lock)
{
spin_lock(&lock->l_lock);
@@ -59,6 +61,8 @@ EXPORT_SYMBOL(lock_res_and_lock);
* Unlock a lock and its resource previously locked with lock_res_and_lock
*/
void unlock_res_and_lock(struct ldlm_lock *lock)
+ __releases(&lock->l_resource->lr_lock)
+ __releases(&lock->l_lock)
{
/* on server-side resource of lock doesn't change */
ldlm_clear_res_locked(lock);