From: Jörn Engel <joern@logfs.org>
Date: Sun, 25 Apr 2010 06:54:42 +0000 (+0200)
Subject: Catch filesystems lacking s_bdi
X-Git-Tag: v2.6.34-rc6~15^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5129a469a91a91427334c40e29e64c6d0ab68caf;p=pandora-kernel.git

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>
---

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