From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Serge E. Hallyn" <serge.hallyn-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
Subject: Re: [PATCH 4/7] vfs: Add ->statfs callback for pipefs
Date: Thu, 21 Jul 2011 10:59:25 -0500
Message-ID: <20110721155925.GC19012@mail.hallyn.com>
References: <4E204466.8010204@parallels.com> <4E2044D6.3060205@parallels.com>
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To: Pavel Emelyanov <xemul-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
Cc: Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>, Cyrill Gorcunov <gorcunov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Linux Containers <containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org>, Nathan Lynch <ntl-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>, Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Serge Hallyn <serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>, Daniel Lezcano <dlezcano-NmTC/0ZBporQT0dZR+AlfA@public.gmane.org>
List-Id: containers.vger.kernel.org

Quoting Pavel Emelyanov (xemul-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org):
> This is done to make it possible to distinguish pipes from fifos
> when opening one via /proc/<pid>/fd/ link.
> 
> Signed-off-by: Pavel Emelyanov <xemul-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>

Acked-by: Serge Hallyn <serge.hallyn-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>

> 
> ---
>  fs/pipe.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/fs/pipe.c b/fs/pipe.c
> index da42f7d..5de15de 100644
> --- a/fs/pipe.c
> +++ b/fs/pipe.c
> @@ -1254,6 +1254,7 @@ out:
>  
>  static const struct super_operations pipefs_ops = {
>  	.destroy_inode = free_inode_nonrcu,
> +	.statfs = simple_statfs,
>  };
>  
>  /*
> -- 
> 1.5.5.6
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