tree e0d0762e047d1fae5d7b6ead1214545bcb205f4e
parent 9e9ad5f408889db6038a59b38ede29ff1ba9ef2f
author Jan Kara <jack@suse.cz> 1341326727 +0200
committer Al Viro <viro@zeniv.linux.org.uk> 1342987098 +0400

vfs: Move noop_backing_dev_info check from sync into writeback

In principle, a filesystem may want to have ->sync_fs() called during sync(1)
although it does not have a bdi (i.e. s_bdi is set to noop_backing_dev_info).
Only writeback code really needs bdi set to something reasonable. So move the
checks where they are more logical.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>