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-rw-r--r--fs/gfs2/glock.c28
1 files changed, 17 insertions, 11 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index a2d45db32cd5..20a13716a672 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -1420,26 +1420,32 @@ static struct shrinker glock_shrinker = {
* @sdp: the filesystem
* @bucket: the bucket
*
+ * Note that the function can be called multiple times on the same
+ * object. So the user must ensure that the function can cope with
+ * that.
*/
static void glock_hash_walk(glock_examiner examiner, const struct gfs2_sbd *sdp)
{
struct gfs2_glock *gl;
- struct rhash_head *pos;
- const struct bucket_table *tbl;
- int i;
+ struct rhashtable_iter iter;
- rcu_read_lock();
- tbl = rht_dereference_rcu(gl_hash_table.tbl, &gl_hash_table);
- for (i = 0; i < tbl->size; i++) {
- rht_for_each_entry_rcu(gl, pos, tbl, i, gl_node) {
+ rhashtable_walk_enter(&gl_hash_table, &iter);
+
+ do {
+ gl = ERR_PTR(rhashtable_walk_start(&iter));
+ if (gl)
+ continue;
+
+ while ((gl = rhashtable_walk_next(&iter)) && !IS_ERR(gl))
if ((gl->gl_name.ln_sbd == sdp) &&
lockref_get_not_dead(&gl->gl_lockref))
examiner(gl);
- }
- }
- rcu_read_unlock();
- cond_resched();
+
+ rhashtable_walk_stop(&iter);
+ } while (cond_resched(), gl == ERR_PTR(-EAGAIN));
+
+ rhashtable_walk_exit(&iter);
}
/**