linux-kernel - Re: [patch 2/7] procfs: Convert /proc/pid/fdinfo/ handling routines to seq-file

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Message-ID: <20120726104929.GC26471@moon>
Date:	Thu, 26 Jul 2012 14:49:29 +0400
From:	Cyrill Gorcunov <gorcunov@...nvz.org>
To:	Pavel Emelyanov <xemul@...allels.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	James Bottomley <jbottomley@...allels.com>,
	Matthew Helsley <matt.helsley@...il.com>
Subject: Re: [patch 2/7] procfs: Convert /proc/pid/fdinfo/ handling routines
 to seq-file

On Thu, Jul 26, 2012 at 02:43:02PM +0400, Pavel Emelyanov wrote:
> On 07/25/2012 01:47 PM, Cyrill Gorcunov wrote:
> > This patch converts /proc/pid/fdinfo/ handling routines to seq-file which
> > is needed to extend seq operations and plug in auxiliary fdinfo provides
> > from subsystems like eventfd/eventpoll/fsnotify.
> > 
> > Note the proc_fd_link no longer call for proc_fd_info, simply because
> > proc_fd_info is converted to seq_fdinfo_open (which is seq-file open()
> > prototype), moreover in further patches I need to provide two seq_fdinfo_open
> > variants -- one with CONFIG_CHECKPOINT_RESTORE and one without this
> > symbol. All in one -- this will look more messy then.
> 
> This is something I'm really not happy with :( After the set applied we will
> have one former proc_fd_info being splitted into 3 (three!) functions doing
> the same (with flavors).
> 
> For me it's better to fix this, otherwise conversion to seq-file looks OK.

OK, thanks for review! I'll try to fix it up.

	Cyrill
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