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Date: Thu, 16 Nov 2017 12:29:56 +0100
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Ben Hutchings <ben.hutchings@codethink.co.uk>,
        Jan Kara <jack@suse.cz>, Theodore Ts'o <tytso@mit.edu>
Cc: "HUANG Weller (CM/ESW12-CN)" <Weller.Huang@cn.bosch.com>,
        stable <stable@vger.kernel.org>
Subject: Re: Security fixes for 4.4
Message-ID: <20171116112956.GA23318@kroah.com>
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On Wed, Nov 15, 2017 at 09:10:46PM +0000, Ben Hutchings wrote:
> Please apply the attached backported patches to 4.4-stable.  The
> upstream commits are:
> 
> 06bd3c36a733 ext4: fix data exposure after a crash

This patch did not apply, and when I worked at it by hand to apply, it
then broke the build with:
	fs/ext4/inode.c: In function ‘ext4_map_blocks’:
fs/ext4/inode.c:669:17: error: ‘EXT4_GET_BLOCKS_ZERO’ undeclared (first use in this function); did you mean ‘EXT4_GET_BLOCKS_PRE_IO’?
       !(flags & EXT4_GET_BLOCKS_ZERO) &&
                 ^~~~~~~~~~~~~~~~~~~~

As Ted didn't provide this on the list of ext4 patches to backport to
4.4 in the past, I'm a bit hesitant to take this now.  Are you sure it
is needed?

thanks,

greg k-h