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rhashtable: Annotate RCU locking of walkers 

Fixes the following sparse warnings:

lib/rhashtable.c:767:5: warning: context imbalance in 'rhashtable_walk_start' - wrong count at exit
lib/rhashtable.c:849:6: warning: context imbalance in 'rhashtable_walk_stop' - unexpected unlock

Fixes: f2dba9c6ff ("rhashtable: Introduce rhashtable_walk_*")
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2015-03-16 10:42:27 +01:00 committed by David S. Miller
parent 04f49faf70
commit db4374f48a
1 changed files with 2 additions and 0 deletions
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lib/rhashtable.c
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@ -760,6 +760,7 @@ EXPORT_SYMBOL_GPL(rhashtable_walk_exit);
* by calling rhashtable_walk_next.
*/
int rhashtable_walk_start(struct rhashtable_iter *iter)
__acquires(RCU)
{
struct rhashtable *ht = iter->ht;
@ -847,6 +848,7 @@ EXPORT_SYMBOL_GPL(rhashtable_walk_next);
* Finish a hash table walk.
*/
void rhashtable_walk_stop(struct rhashtable_iter *iter)
__releases(RCU)
{
struct rhashtable *ht;
struct bucket_table *tbl = iter->walker->tbl;