[GFS2] Initialize extent_list earlier
Here is a patch for the latest upstream GFS2 code:
The journal extent map needs to be initialized sooner than it
currently is. Otherwise failed mount attempts (e.g. not enough
journals, etc.) may panic trying to access the uninitialized list.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 5537798..43d511b 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -329,7 +329,6 @@
struct buffer_head bh;
int rc = 0;
- INIT_LIST_HEAD(&jd->extent_list);
prev_db = 0;
for (lb = 0; lb < ip->i_di.di_size >> sdp->sd_sb.sb_bsize_shift; lb++) {
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 5d0017d..ef0562c 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -387,6 +387,7 @@
if (!jd)
break;
+ INIT_LIST_HEAD(&jd->extent_list);
jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1, NULL);
if (!jd->jd_inode || IS_ERR(jd->jd_inode)) {
if (!jd->jd_inode)