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rhashtable: RCU annotations for next pointers

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Properly annotate next pointers as access is RCU protected in
the lookup path.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2014-08-13 16:38:29 +02:00 committed by David S. Miller
parent 0c9ab09223
commit 5300fdcb7b
2 changed files with 3 additions and 3 deletions
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4
include/linux/rhashtable.h
View file

@ -21,7 +21,7 @@
#include <linux/rculist.h>
struct rhash_head {
struct rhash_head *next;
struct rhash_head __rcu *next;
};
#define INIT_HASH_HEAD(ptr) ((ptr)->next = NULL)
@ -97,7 +97,7 @@ u32 rhashtable_obj_hashfn(const struct rhashtable *ht, void *ptr);
void rhashtable_insert(struct rhashtable *ht, struct rhash_head *node, gfp_t);
bool rhashtable_remove(struct rhashtable *ht, struct rhash_head *node, gfp_t);
void rhashtable_remove_pprev(struct rhashtable *ht, struct rhash_head *obj,
struct rhash_head **pprev, gfp_t flags);
struct rhash_head __rcu **pprev, gfp_t flags);
bool rht_grow_above_75(const struct rhashtable *ht, size_t new_size);
bool rht_shrink_below_30(const struct rhashtable *ht, size_t new_size);

2
lib/rhashtable.c
View file

@ -386,7 +386,7 @@ EXPORT_SYMBOL_GPL(rhashtable_insert);
* deletion when combined with walking or lookup.
*/
void rhashtable_remove_pprev(struct rhashtable *ht, struct rhash_head *obj,
struct rhash_head **pprev, gfp_t flags)
struct rhash_head __rcu **pprev, gfp_t flags)
{
struct bucket_table *tbl = rht_dereference(ht->tbl, ht);