linux-kernel - Re: msync(2) bug(?), returns AOP_WRITEPAGE

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Message-Id: <200710272047.l9RKlXAo032686@agora.fsl.cs.sunysb.edu>
Date:	Sat, 27 Oct 2007 16:47:33 -0400
From:	Erez Zadok <ezk@...sunysb.edu>
To:	Hugh Dickins <hugh@...itas.com>
Cc:	Erez Zadok <ezk@...sunysb.edu>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Ryan Finnie <ryan@...nie.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	cjwatson@...ntu.com, linux-mm@...ck.org
Subject: Re: msync(2) bug(?), returns AOP_WRITEPAGE_ACTIVATE to userland 

In message <Pine.LNX.4.64.0710251743190.9834@...nde.wat.veritas.com>, Hugh Dickins writes:
> On Mon, 22 Oct 2007, Erez Zadok wrote:
[...]
> > If you've got suggestions how I can handle unionfs_write more cleanly, or
> > comments on the above possibilities, I'd love to hear them.
> 
> For now I think you should pursue the ~(__GFP_FS|__GFP_IO) idea somehow.
> 
> Hugh

Hugh, thanks for the great explanations and suggestions (in multiple
emails).  I'm going to test all of those soon.

Erez.
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