From: Joern Engel <joern@logfs.org>
Date: Tue, 13 Apr 2010 15:46:37 +0000 (+0200)
Subject: [LogFS] Prevent memory corruption on large deletes
X-Git-Tag: v2.6.34-rc6~76^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=032d8f7268444a0f5d4ee02d9513d682d5b8edfc;p=pandora-kernel.git

[LogFS] Prevent memory corruption on large deletes

Removing sufficiently large files would create aliases for a large
number of segments.  This in turn results in a large number of journal
entries and an overflow of s_je_array.

Cheap fix is to add a BUG_ON, turning memory corruption into something
annoying, but less dangerous.  Real fix is to count the number of
affected segments and prevent the problem completely.

Signed-off-by: Joern Engel <joern@logfs.org>
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