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Date: Thu, 3 Jan 2013 11:50:09 +0000
From: Steven Whitehouse <swhiteho@...hat.com>
To: cluster-devel@...hat.com, linux-kernel@...r.kernel.org
Cc: Bob Peterson <rpeterso@...hat.com>,
Steven Whitehouse <swhiteho@...hat.com>
Subject: [PATCH 3/4] GFS2: Stop looking for free blocks at end of rgrp
From: Bob Peterson <rpeterso@...hat.com>
This patch adds a return code check after calling function
gfs2_rbm_from_block while determining the free extent size.
That way, when the end of an rgrp is reached, it won't try
to process unaligned blocks after the end.
Signed-off-by: Bob Peterson <rpeterso@...hat.com>
Signed-off-by: Steven Whitehouse <swhiteho@...hat.com>
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 738b388..712dd4f 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -350,10 +350,14 @@ static u32 gfs2_free_extlen(const struct gfs2_rbm *rrbm, u32 len)
BUG_ON(len < chunk_size);
len -= chunk_size;
block = gfs2_rbm_to_block(&rbm);
- gfs2_rbm_from_block(&rbm, block + chunk_size);
- n_unaligned = 3;
- if (ptr)
+ if (gfs2_rbm_from_block(&rbm, block + chunk_size)) {
+ n_unaligned = 0;
break;
+ }
+ if (ptr) {
+ n_unaligned = 3;
+ break;
+ }
n_unaligned = len & 3;
}
--
1.7.4
--
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