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gfs2: Convert to properly refcounting bdi 

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 <swhiteho@redhat.com>
CC: Bob Peterson <rpeterso@redhat.com>
CC: cluster-devel@redhat.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jan Kara 2017-04-12 12:24:42 +02:00 committed by Jens Axboe
parent 7fbbe972c3
commit 95fe66de9f
1 changed files with 3 additions and 6 deletions
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9
fs/gfs2/ops_fstype.c
View File

@ -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;
}