3 files changed, 16 insertions, 30 deletions

diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index a9aa2edd756..178b3391184 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -116,7 +116,7 @@ static void init_vfs(struct super_block *sb, unsigned noatime)
 
 static int init_names(struct gfs2_sbd *sdp, int silent)
 {
-	struct gfs2_sb *sb = NULL;
+	struct page *page;
 	char *proto, *table;
 	int error = 0;
 
@@ -126,37 +126,23 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
 	/*  Try to autodetect  */
 
 	if (!proto[0] || !table[0]) {
-		struct buffer_head *bh;
-		bh = sb_getblk(sdp->sd_vfs,
-			       GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift);
-		lock_buffer(bh);
-		clear_buffer_uptodate(bh);
-		clear_buffer_dirty(bh);
-		unlock_buffer(bh);
-		ll_rw_block(READ, 1, &bh);
-		wait_on_buffer(bh);
-
-		if (!buffer_uptodate(bh)) {
-			brelse(bh);
-			return -EIO;
-		}
-
-		sb = kmalloc(sizeof(struct gfs2_sb), GFP_KERNEL);
-		if (!sb) {
-			brelse(bh);
-			return -ENOMEM;
-		}
-		gfs2_sb_in(sb, bh->b_data);
-		brelse(bh);
-
-		error = gfs2_check_sb(sdp, sb, silent);
+		struct gfs2_sb *sb;
+		page = gfs2_read_super(sdp->sd_vfs, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift);
+		if (!page)
+			return -ENOBUFS;
+		sb = kmap(page);
+		gfs2_sb_in(&sdp->sd_sb, sb);
+		kunmap(page);
+		__free_page(page);
+
+		error = gfs2_check_sb(sdp, &sdp->sd_sb, silent);
 		if (error)
 			goto out;
 
 		if (!proto[0])
-			proto = sb->sb_lockproto;
+			proto = sdp->sd_sb.sb_lockproto;
 		if (!table[0])
-			table = sb->sb_locktable;
+			table = sdp->sd_sb.sb_locktable;
 	}
 
 	if (!table[0])
@@ -166,7 +152,6 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
 	snprintf(sdp->sd_table_name, GFS2_FSNAME_LEN, "%s", table);
 
 out:
-	kfree(sb);
 	return error;
 }
 
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index f6ce5e4eaf7..6a78b1b32e2 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -180,7 +180,7 @@ static int end_bio_io_page(struct bio *bio, unsigned int bytes_done, int error)
 	return 0;
 }
 
-static struct page *gfs2_read_super(struct super_block *sb, sector_t sector)
+struct page *gfs2_read_super(struct super_block *sb, sector_t sector)
 {
 	struct page *page;
 	struct bio *bio;
@@ -205,7 +205,7 @@ static struct page *gfs2_read_super(struct super_block *sb, sector_t sector)
 
 	bio->bi_end_io = end_bio_io_page;
 	bio->bi_private = page;
-	submit_bio(READ_SYNC, bio);
+	submit_bio(READ_SYNC | (1 << BIO_RW_META), bio);
 	wait_on_page_locked(page);
 	bio_put(bio);
 	if (!PageUptodate(page)) {
diff --git a/fs/gfs2/super.h b/fs/gfs2/super.h
index 5fa5119cfba..5bb443ae0f5 100644
--- a/fs/gfs2/super.h
+++ b/fs/gfs2/super.h
@@ -16,6 +16,7 @@ void gfs2_tune_init(struct gfs2_tune *gt);
 
 int gfs2_check_sb(struct gfs2_sbd *sdp, struct gfs2_sb *sb, int silent);
 int gfs2_read_sb(struct gfs2_sbd *sdp, struct gfs2_glock *gl, int silent);
+struct page *gfs2_read_super(struct super_block *sb, sector_t sector);
 
 static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
 {