From: Amir Goldstein <amir73il@gmail.com>
Date: Mon, 21 Mar 2011 02:59:02 +0000 (-0400)
Subject: ext4: handle errors in ext4_clear_blocks()
X-Git-Tag: v2.6.39-rc1~73^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d67d1218344009970ba0deb7eb15a3984518ddd0;p=pandora-kernel.git

ext4: handle errors in ext4_clear_blocks()

Checking return code from ext4_journal_get_write_access() is important
with snapshots, because this function invokes COW, so may return new
errors, such as ENOSPC.

ext4_clear_blocks() now returns < 0 for fatal errors, in which case,
ext4_free_data() is aborted.

Signed-off-by: Amir Goldstein <amir73il@users.sf.net>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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