From: Akira Fujita <a-fujita@rs.jp.nec.com>
Date: Sun, 6 Sep 2009 02:11:55 +0000 (-0400)
Subject: ext4: Remove unneeded BUG_ON() in ext4_move_extents()
X-Git-Tag: v2.6.32-rc1~633^2~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=daea696dbac0e33af3cfe304efbfb8d74e0effe6;p=pandora-kernel.git

ext4: Remove unneeded BUG_ON() in ext4_move_extents()

The ext4_move_extents() functions checks with BUG_ON() whether the
exchanged blocks count accords with request blocks count.  But, if the
target range (orig_start + len) includes sparse block(s), 'moved_len'
(exchanged blocks count) does not agree with 'len' (request blocks
count), since sparse block is not counted in 'moved_len'.  This causes
us to hit the BUG_ON(), even though the function succeeded.

Signed-off-by: Akira Fujita <a-fujita@rs.jp.nec.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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