Subject: + ocfs2-use-find_last_bit.patch added to -mm tree
To: akinobu.mita@xxxxxxxxx,jlbec@xxxxxxxxxxxx,mfasheh@xxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Fri, 20 Sep 2013 13:50:16 -0700
The patch titled
Subject: ocfs2: use find_last_bit()
has been added to the -mm tree. Its filename is
ocfs2-use-find_last_bit.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ocfs2-use-find_last_bit.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ocfs2-use-find_last_bit.patch
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------------------------------------------------------
From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Subject: 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@xxxxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Signed-off-by: Joel Becker <jlbec@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/cluster/heartbeat.c | 18 ++----------------
1 file changed, 2 insertions(+), 16 deletions(-)
diff -puN fs/ocfs2/cluster/heartbeat.c~ocfs2-use-find_last_bit fs/ocfs2/cluster/heartbeat.c
--- a/fs/ocfs2/cluster/heartbeat.c~ocfs2-use-find_last_bit
+++ a/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)
_
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
ocfs2-use-bitmap_weight.patch
ocfs2-use-find_last_bit.patch
linux-next.patch
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