linux-kernel - Re: [PATCH v10 19/21] xip: Add xip_zero_page

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Message-ID: <20140904213641.GB4364@thunk.org>
Date:	Thu, 4 Sep 2014 17:36:41 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Matthew Wilcox <willy@...ux.intel.com>
Cc:	Dave Chinner <david@...morbit.com>,
	Matthew Wilcox <matthew.r.wilcox@...el.com>,
	linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Ross Zwisler <ross.zwisler@...ux.intel.com>
Subject: Re: [PATCH v10 19/21] xip: Add xip_zero_page_range

On Thu, Sep 04, 2014 at 05:08:02PM -0400, Matthew Wilcox wrote:
> 
> ext4 does (or did?) have this bug (expectation?).  I then take advantage
> of the fact that we have to accommodate it, so there are now two places
> that have to accommodate it.  I forget what the path was that has that
> assumption, but xfstests used to display it.
> 
> I'm away this week (... bad timing), but I can certainly fix it elsewhere
> in ext4 next week.

Huh?  Can you say more about what it is or was doing?  And where?

I tried to look for it, and I'm not seeing it, but I'm not entirely
sure from your description whether I'm looking in the right place.

Cheers,

     	       		   	       	       - Ted
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