linux-ext4 - Re: [PATCH -V2 2/2] ext4: truncate the file properly if we fail to copy data from userspace

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Message-ID: <20090608202049.GC23723@skywalker>
Date:	Tue, 9 Jun 2009 01:50:49 +0530
From:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	Theodore Tso <tytso@....edu>
Cc:	cmm@...ibm.com, sandeen@...hat.com, linux-ext4@...r.kernel.org,
	Jan Kara <jack@...e.cz>
Subject: Re: [PATCH -V2 2/2] ext4: truncate the file properly if we fail to
	copy data from userspace

On Mon, Jun 08, 2009 at 03:14:20PM -0400, Theodore Tso wrote:
> On Mon, Jun 08, 2009 at 10:13:57PM +0530, Aneesh Kumar K.V wrote:
> > I think i both the case Jan's patch
> > allocate-blocks-correctly-with-subpage-blocksize need an update ? Since you have put
> > the patch before Jan's changes.
> 
> OK, here's how I updated Jan's patch.  I'm going to assume that we'll
> submit the ext4 patch queue immediately as soon as the merge window
> opens, since my impression is Jan is still waiting for some mm
> developers to review his patch set.   
> 
> Annesh, does this look good to you?

I just did a quick look. Should we do a block_unlock_hole_extend after
journal_stop. We do a block_lock_hole_extend before journal_start.

> 
> Jan, if we go down this path, you'll need to update your ext4 patch
> with this updated one, to take into account the changes from Aneesh's
> patch.
> 
> (We could do it the other way, but that means even more patches queued
> up behind Jan's patch series, and I didn't realize originally that
> Aneesh intended for these to be queued after Jan's patches.  So it
> seemed easier to just order Aneesh's patches to avoid block allocation
> leaks first, since they are at least functionally (if not
> syntactically) independent of the subpagesize blocksize patches.)

-aneesh
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