tree 141a17cbea94c7c9c038187cc7081e1c688eac55
parent 7e2455c1a123ceadbb35150a610d61e8443fd340
author Jörn Engel <joern@logfs.org> 1272178482 +0200
committer Jens Axboe <jens.axboe@oracle.com> 1272178482 +0200

Catch filesystems lacking s_bdi

noop_backing_dev_info is used only as a flag to mark filesystems that
don't have any backing store, like tmpfs, procfs, spufs, etc.

Signed-off-by: Joern Engel <joern@logfs.org>

Changed the BUG_ON() to a WARN_ON(). Note that adding dirty inodes
to the noop_backing_dev_info is not legal and will not result in
them being flushed, but we already catch this condition in
__mark_inode_dirty() when checking for a registered bdi.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>