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authorSteven Whitehouse <swhiteho@redhat.com>2012-11-13 14:50:35 +0000
committerSteven Whitehouse <swhiteho@redhat.com>2012-11-13 14:50:35 +0000
commitaa8920c96897dd82f0520f9e7db7311b42547ce6 (patch)
tree2f3c7eea4e11fd7c2eb59f7744edee3802fe5c35 /fs/gfs2/rgrp.c
parent4327a9bf71f4b021b675e01f24fefc647cff7513 (diff)
downloadop-kernel-dev-aa8920c96897dd82f0520f9e7db7311b42547ce6.zip
op-kernel-dev-aa8920c96897dd82f0520f9e7db7311b42547ce6.tar.gz
GFS2: Fix one RG corner case
For filesystems with only a single resource group, we need to be careful that the allocation loop will not land up with a NULL resource group. This fixes a bug in a previous patch where the gfs2_rgrpd_get_next() function was being used instead of gfs2_rgrpd_get_first() Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/rgrp.c')
-rw-r--r--fs/gfs2/rgrp.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 99a6197..5625e93 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1776,10 +1776,11 @@ static u32 gfs2_orlov_skip(const struct gfs2_inode *ip)
static bool gfs2_select_rgrp(struct gfs2_rgrpd **pos, const struct gfs2_rgrpd *begin)
{
struct gfs2_rgrpd *rgd = *pos;
+ struct gfs2_sbd *sdp = rgd->rd_sbd;
rgd = gfs2_rgrpd_get_next(rgd);
if (rgd == NULL)
- rgd = gfs2_rgrpd_get_next(NULL);
+ rgd = gfs2_rgrpd_get_first(sdp);
*pos = rgd;
if (rgd != begin) /* If we didn't wrap */
return true;
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