From: Dave Chinner <dchinner@redhat.com>
Date: Fri, 8 Apr 2011 02:45:07 +0000 (+1000)
Subject: xfs: catch bad block numbers freeing extents.
X-Git-Tag: v2.6.39-rc3~1^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=be65b18a10e62321c5ba09a1dc0f70babeb0eba1;p=pandora-kernel.git

xfs: catch bad block numbers freeing extents.

A fuzzed filesystem crashed a kernel when freeing an extent with a
block number beyond the end of the filesystem. Convert all the debug
asserts in xfs_free_extent() to active checks so that we catch bad
extents and return that the filesytsem is corrupted rather than
crashing.

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