From: Filipe Manana <fdmanana@suse.com>
Date: Mon, 22 Sep 2014 16:41:04 +0000 (+0100)
Subject: Btrfs: add missing end_page_writeback on submit_extent_page failure
X-Git-Tag: fixes-against-v3.18-rc2~120^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=55e3bd2e0c2e1cfb43429b962e61415e0526bc01;p=pandora-kernel.git

Btrfs: add missing end_page_writeback on submit_extent_page failure

If submit_extent_page() fails in write_one_eb(), we end up with the current
page not marked dirty anymore, unlocked and marked for writeback. But we never
end up calling end_page_writeback() against the page, which will make calls to
filemap_fdatawait_range (e.g. at transaction commit time) hang forever waiting
for the writeback bit to be cleared from the page.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

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