Merge tag 'gfs2-4.11.addendum' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2...
[sfrench/cifs-2.6.git] / fs / gfs2 / glock.c
index d004debe2856d89d44957b1b05ceed0f11a586ce..ec0848fcca02d8960ba671b9b0be5a56ed3fd7ed 100644 (file)
@@ -21,7 +21,7 @@
 #include <linux/list.h>
 #include <linux/wait.h>
 #include <linux/module.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/seq_file.h>
 #include <linux/debugfs.h>
 #include <linux/kthread.h>
@@ -697,7 +697,7 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
        gl->gl_target = LM_ST_UNLOCKED;
        gl->gl_demote_state = LM_ST_EXCLUSIVE;
        gl->gl_ops = glops;
-       gl->gl_dstamp = ktime_set(0, 0);
+       gl->gl_dstamp = 0;
        preempt_disable();
        /* We use the global stats to estimate the initial per-glock stats */
        gl->gl_stats = this_cpu_ptr(sdp->sd_lkstats)->lkstats[glops->go_type];
@@ -1425,26 +1425,32 @@ 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);
 }
 
 /**