From: J. Bruce Fields <bfields@redhat.com>
Date: Wed, 29 Jun 2011 12:23:50 +0000 (-0400)
Subject: nfsd4: fix file leak on open_downgrade
X-Git-Tag: v3.1-rc1~239^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f197c27196a5e7631b89e2e92daa096fcf7c302c;p=pandora-kernel.git

nfsd4: fix file leak on open_downgrade

Stateid's hold a read reference for a read open, a write reference for a
write open, and an additional one of each for each read+write open.  The
latter wasn't getting put on a downgrade, so something like:

	open RW
	open R
	downgrade to R

was resulting in a file leak.

Also fix an imbalance in an error path.

Regression from 7d94784293096c0a46897acdb83be5abd9278ece "nfsd4: fix
downgrade/lock logic".

Cc: stable@kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---

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