From 3b7a3a05e8b006a73c406230b3d2d3da920779d9 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 16 Jun 2015 18:06:40 -0400
Subject: [PATCH] ufs: free excessive blocks upon ->write_begin() failure/short
 copy

Broken in "[PATCH] ufs: truncate should allocate block for last byte";
all way back in 2006.  ufs_setattr() hadn't been the only user of
vmtruncate() and eliminating ->truncate() method required corrections
in a bunch of places.  Eventually those places had migrated into
->write_begin() failure exit and ->write_end() after short copy...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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