linux-kernel - Re: [RFC PATCH 4/6] networking: rework socket to fd mapping using alloc-file

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Date:	Thu, 03 Dec 2009 18:24:30 -0500
From:	Eric Paris <eparis@...hat.com>
To:	David Miller <davem@...emloft.net>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, viro@...iv.linux.org.uk, jmorris@...ei.org,
	npiggin@...e.de, zohar@...ibm.com, jack@...e.cz,
	jmalicki@...acarta.com, dsmith@...hat.com, serue@...ibm.com,
	hch@....de, john@...nmccutchan.com, rlove@...ve.org,
	ebiederm@...ssion.com, heiko.carstens@...ibm.com,
	penguin-kernel@...ove.SAKURA.ne.jp, mszeredi@...e.cz,
	jens.axboe@...cle.com, akpm@...ux-foundation.org, matthew@....cx,
	hugh.dickins@...cali.co.uk, kamezawa.hiroyu@...fujitsu.com,
	nishimura@....nes.nec.co.jp, arnd@...db.de, eric.dumazet@...il.com
Subject: Re: [RFC PATCH 4/6] networking: rework socket to fd mapping using
 alloc-file

On Thu, 2009-12-03 at 14:00 -0800, David Miller wrote:
> From: Eric Paris <eparis@...hat.com>
> Date: Thu, 03 Dec 2009 14:59:17 -0500
> 
> > Currently the networking code does interesting things allocating its struct
> > file and file descriptors.  This patch attempts to unify all of that and
> > simplify the error paths.  It is also a part of my patch series trying to get
> > rid of init-file and get-empty_filp and friends.
> > 
> > Signed-off-by: Eric Paris <eparis@...hat.com>
> 
> I'm fine with this:
> 
> Acked-by: David S. Miller <davem@...emloft.net>

It's actually busted, I forgot to actually pass back the new file in
sock_alloc_fd().  But I've got a fixed version and will resend the
series once I see other comments....

inc diff below in case anyone is trying to test this series.

diff --git a/net/socket.c b/net/socket.c
index 41ac0b1..6620421 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -390,6 +390,7 @@ static int sock_alloc_fd(struct file **filep, struct
socket *sock, int flags)
                goto out_err;
        }
 
+       *filep = file;
        sock->file = file;
        SOCK_INODE(sock)->i_fop = &socket_file_ops;
        file->f_flags = O_RDWR | (flags & O_NONBLOCK);



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