From: Josef Bacik <jbacik@fusionio.com>
Date: Sat, 20 Apr 2013 03:45:33 +0000 (-0400)
Subject: Btrfs: deal with bad mappings in btrfs_map_block
X-Git-Tag: v3.10-rc1~31^2~35
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9bb91873e32af6305a1c5239024674e4a5a97e92;p=pandora-kernel.git

Btrfs: deal with bad mappings in btrfs_map_block

Martin Steigerwald reported a BUG_ON() in btrfs_map_block where we didn't find
a chunk for a particular block we were trying to map.  This happened because the
block was bogus.  We shouldn't be BUG_ON()'ing in this case, just print a
message and return an error.  This came from reada_add_block and it appears to
deal with an error fine so we should be good there.  Thanks,

Reported-by: Martin Steigerwald <Martin@lichtvoll.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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