From: Dave Chinner <david@fromorbit.com>
Date: Mon, 11 Jan 2010 11:47:45 +0000 (+0000)
Subject: xfs: Reference count per-ag structures
X-Git-Tag: v2.6.34-rc1~278^2~41
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aed3bb90abaf0b42e8c8747e192f7bb97f445279;p=pandora-kernel.git

xfs: Reference count per-ag structures

Reference count the per-ag structures to ensure that we keep get/put
pairs balanced. Assert that the reference counts are zero at unmount
time to catch leaks. In future, reference counts will enable us to
safely remove perag structures by allowing us to detect when they
are no longer in use.

Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
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