tree b14d75074692ddb213e22e098a64087950f4cf78
parent 3c4d716538f3eefb1c1f10961a047a6456a2b590
author Christoph Hellwig <hch@lst.de> 1276013691 +0200
committer Jens Axboe <jaxboe@fusionio.com> 1276253887 +0200

writeback: enforce s_umount locking in writeback_inodes_sb

Make sure that not only sync_filesystem but all callers of writeback_inodes_sb
have the superblock protected against remount.  As-is this disables all
functionality for these callers, but the next patch relies on this locking to
fix writeback_inodes_sb for sync_filesystem.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>