From: Thomas Graf <tgraf@suug.ch>
Date: Mon, 16 Mar 2015 09:42:27 +0000 (+0100)
Subject: rhashtable: Annotate RCU locking of walkers
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=db4374f48a6c31c02f6ad1d19b257c186b443c0c;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

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: f2dba9c6ff0d ("rhashtable: Introduce rhashtable_walk_*")
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index c523d3a563aa..eae26a67bd18 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -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;