GFS2: Fix infinite loop in rbm_find
authorBob Peterson <rpeterso@redhat.com>
Wed, 12 Sep 2012 13:40:31 +0000 (09:40 -0400)
committerSteven Whitehouse <swhiteho@redhat.com>
Mon, 24 Sep 2012 09:47:27 +0000 (10:47 +0100)
commit3701530aed9711fcfe9b29d3de0f7a27c8dbc8ae
treec6b5a2228e2f2b205b62ddf50cb38e781d2fd82e
parentff7f4cb461163967a9dbb8c569e2447b7520654f
GFS2: Fix infinite loop in rbm_find

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 <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Tested-by: Bob Peterson <rpeterso@redhat.com>
Tested-by: Barry Marson <bmarson@redhat.com>
fs/gfs2/rgrp.c