Thread (56 messages) 56 messages, 3 authors, 2017-04-12
STALE3355d
Revisions (3)
  1. rfc [diff vs current]
  2. v2 current
  3. v3 [diff vs current]

[PATCH 18/25] gfs2: Convert to properly refcounting bdi

From: Jan Kara <jack@suse.cz>
Date: 2017-03-29 10:56:32
Also in: linux-fsdevel
Subsystem: filesystems (vfs and infrastructure), gfs2 file system, the rest · Maintainers: Alexander Viro, Christian Brauner, Andreas Gruenbacher, Linus Torvalds

Similarly to set_bdev_super() GFS2 just used block device reference to
bdi. Convert it to properly getting bdi reference. The reference will
get automatically dropped on superblock destruction.

CC: Steven Whitehouse <redacted>
CC: Bob Peterson <redacted>
CC: cluster-devel@redhat.com
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/gfs2/ops_fstype.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index b108e7ba81af..e6b6f97d0fc1 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -23,6 +23,7 @@
 #include <linux/quotaops.h>
 #include <linux/lockdep.h>
 #include <linux/module.h>
+#include <linux/backing-dev.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -1222,12 +1223,8 @@ static int set_gfs2_super(struct super_block *s, void *data)
 {
 	s->s_bdev = data;
 	s->s_dev = s->s_bdev->bd_dev;
-
-	/*
-	 * We set the bdi here to the queue backing, file systems can
-	 * overwrite this in ->fill_super()
-	 */
-	s->s_bdi = bdev_get_queue(s->s_bdev)->backing_dev_info;
+	s->s_bdi = bdi_get(s->s_bdev->bd_bdi);
+	s->s_iflags |= SB_I_DYNBDI;
 	return 0;
 }
 
-- 
2.10.2
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