From: Bob Peterson <rpete...@redhat.com>
This patch fixes an infinite loop in gfs2_rbm_find that was introduced
by the previous patch. The problem occurred when the length was less
than 3 but the rbm block was byte-aligned, causing it to improperly
return a extent length of zero, which caused it to spin.
Signed-off-by: Bob Peterson <rpete...@redhat.com>
Signed-off-by: Steven Whitehouse <swhit...@redhat.com>
Tested-by: Bob Peterson <rpete...@redhat.com>
Tested-by: Barry Marson <bmar...@redhat.com>
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index b933cdc..3cc402c 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -329,6 +329,7 @@ static u32 gfs2_free_extlen(const struct gfs2_rbm *rrbm,
u32 len)
gfs2_unaligned_extlen(&rbm, 4 - n_unaligned, &len))
goto out;
+ n_unaligned = len & 3;
/* Start is now byte aligned */
while (len > 3) {
start = rbm.bi->bi_bh->b_data;
--
1.7.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
