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authorJens Axboe <jens.axboe@oracle.com>2009-09-16 17:02:33 +0400
committerJens Axboe <jens.axboe@oracle.com>2009-09-16 17:18:51 +0400
commit32a88aa1b6dfb901cec64e1898cac78d0f25028a (patch)
tree51aa6f56ccfca53f495d015645373317bdee3647 /fs/super.c
parentc4a77a6c7dcff04a2abc7fe4b6b2ae605be41c5b (diff)
downloadlinux-32a88aa1b6dfb901cec64e1898cac78d0f25028a.tar.xz
fs: Assign bdi in super_block
We do this automatically in get_sb_bdev() from the set_bdev_super() callback. Filesystems that have their own private backing_dev_info must assign that in ->fill_super(). Note that ->s_bdi assignment is required for proper writeback! Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/super.c')
-rw-r--r--fs/super.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/super.c b/fs/super.c
index 9cda337ddae2..b03fea8fbfb6 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -707,6 +707,12 @@ static int set_bdev_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;
return 0;
}