linux-kernel - Re: [PATCH 1/8] mm: drop actor argument of do_generic_file

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Date:	Wed, 17 Jul 2013 02:13:27 +0300 (EEST)
From:	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To:	Matthew Wilcox <willy@...ux.intel.com>,
	Andreas Dilger <andreas.dilger@...el.com>,
	Peng Tao <tao.peng@....com>,
	Oleg Drokin <oleg.drokin@...el.com>
Cc:	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Hugh Dickins <hughd@...gle.com>,
	Wu Fengguang <fengguang.wu@...el.com>, Jan Kara <jack@...e.cz>,
	Mel Gorman <mgorman@...e.de>, linux-mm@...ck.org,
	Andi Kleen <ak@...ux.intel.com>,
	"Kirill A. Shutemov" <kirill@...temov.name>,
	Hillf Danton <dhillf@...il.com>, Dave Hansen <dave@...1.net>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/8] mm: drop actor argument of do_generic_file_read()

Matthew Wilcox wrote:
> On Mon, Jul 15, 2013 at 01:47:47PM +0300, Kirill A. Shutemov wrote:
> > From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
> > 
> > There's only one caller of do_generic_file_read() and the only actor is
> > file_read_actor(). No reason to have a callback parameter.
> > 
> > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
> > Acked-by: Dave Hansen <dave.hansen@...ux.intel.com>
> 
> Would it make sense to do the same thing to do_shmem_file_read()?
> 
> From: Matthew Wilcox <willy@...ux.intel.com>
> 
> There's only one caller of do_shmem_file_read() and the only actor is
> file_read_actor(). No reason to have a callback parameter.
> 
> Signed-off-by: Matthew Wilcox <willy@...ux.intel.com>

Looks good to me:

Reviewed-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

v3.11-rc1 brings one more user for read_actor_t -- lustre. But it seemes
it's artifact of ages when f_op had ->sendfile and it's not in use
anymore.

-- 
 Kirill A. Shutemov
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