[GFS2] Revert part of earlier log.c changes

This is patch 2 of 5 for bug #248176.

The list_move code previously concocted in log.c for bug #238162
(see https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=238162#c23)
never runs as bh can now never be NULL at this point.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 2 insertions, 11 deletions

diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index f49a12e24086..f7c0608332fb 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -83,11 +83,6 @@ static void gfs2_ail1_start_one(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
 
                         gfs2_assert(sdp, bd->bd_ail == ai);
 
-                        if (!bh){
-                                list_move(&bd->bd_ail_st_list, &ai->ai_ail2_list);
-                                continue;
-                        }
-
                         if (!buffer_busy(bh)) {
                                 if (!buffer_uptodate(bh)) {
                                         gfs2_log_unlock(sdp);
@@ -130,11 +125,6 @@ static int gfs2_ail1_empty_one(struct gfs2_sbd *sdp, struct gfs2_ail *ai, int fl
                                          bd_ail_st_list) {
                 bh = bd->bd_bh;
 
-                if (!bh){
-                        list_move(&bd->bd_ail_st_list, &ai->ai_ail2_list);
-                        continue;
-                }
-
                 gfs2_assert(sdp, bd->bd_ail == ai);
 
                 if (buffer_busy(bh)) {
@@ -155,13 +145,14 @@ static int gfs2_ail1_empty_one(struct gfs2_sbd *sdp, struct gfs2_ail *ai, int fl
 
 static void gfs2_ail1_start(struct gfs2_sbd *sdp, int flags)
 {
-        struct list_head *head = &sdp->sd_ail1_list;
+        struct list_head *head;
         u64 sync_gen;
         struct list_head *first;
         struct gfs2_ail *first_ai, *ai, *tmp;
         int done = 0;
 
         gfs2_log_lock(sdp);
+        head = &sdp->sd_ail1_list;
         if (list_empty(head)) {
                 gfs2_log_unlock(sdp);
                 return;