From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Tue, 12 Nov 2013 23:07:01 +0000 (-0800)
Subject: ocfs2: use find_last_bit()
X-Git-Tag: firefly_0821_release~176^2~4993^2~254
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=518df6bdf38559247ee90b9e59a40fae779d57d0;p=firefly-linux-kernel-4.4.55.git

ocfs2: use find_last_bit()

We already have find_last_bit().  So just use it as described in the
comment.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 292a13b05b6e..73920ffda05b 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -946,23 +946,9 @@ out:
 	return changed;
 }
 
-/* This could be faster if we just implmented a find_last_bit, but I
- * don't think the circumstances warrant it. */
-static int o2hb_highest_node(unsigned long *nodes,
-			     int numbits)
+static int o2hb_highest_node(unsigned long *nodes, int numbits)
 {
-	int highest, node;
-
-	highest = numbits;
-	node = -1;
-	while ((node = find_next_bit(nodes, numbits, node + 1)) != -1) {
-		if (node >= numbits)
-			break;
-
-		highest = node;
-	}
-
-	return highest;
+	return find_last_bit(nodes, numbits);
 }
 
 static int o2hb_do_disk_heartbeat(struct o2hb_region *reg)