From: Suleiman Souhlal <ssouhlal@FreeBSD.org>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: linux-kernel@vger.kernel.org, vserver@list.linux-vserver.org,
Herbert Poetzl <herbert@13thfloor.at>,
"Serge E. Hallyn" <serue@us.ibm.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Dave Hansen <haveblue@us.ibm.com>,
Arjan van de Ven <arjan@infradead.org>,
Hubertus Franke <frankeh@watson.ibm.com>,
Cedric Le Goater <clg@fr.ibm.com>,
Kyle Moffett <mrmacman_g4@mac.com>
Subject: Re: [PATCH 5/5] file: Modify struct fown_struct to contain a tref
Date: Sun, 29 Jan 2006 00:43:55 -0800 [thread overview]
Message-ID: <43DC804B.4060900@FreeBSD.org> (raw)
In-Reply-To: <m14q3na3ma.fsf_-_@ebiederm.dsl.xmission.com>
Eric W. Biederman wrote:
> @@ -317,7 +326,9 @@ static long do_fcntl(int fd, unsigned in
> * current syscall conventions, the only way
> * to fix this will be in libc.
> */
> - err = filp->f_owner.pid;
> + err = 0;
> + if (filp->f_owner.tref->task)
> + err = filp->f_owner.pid;
Probably not very important, but why don't you use
filp->f_owner.tref->task->pid? This way you could completely get rid of
the pid field in fown_struct.
> --- a/net/socket.c
> +++ b/net/socket.c
> @@ -855,7 +855,10 @@ static long sock_ioctl(struct file *file
> break;
> case FIOGETOWN:
> case SIOCGPGRP:
> - err = put_user(sock->file->f_owner.pid, (int __user *)argp);
> + pid = 0;
> + if (sock->file->f_owner.tref->task)
> + pid = sock->file->f_owner.pid;
> + err = put_user(pid, (int __user *)argp);
Same here.
-- Suleiman
next prev parent reply other threads:[~2006-01-29 8:44 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-29 7:19 [RFC][PATCH 0/5] Task references Eric W. Biederman
2006-01-29 7:22 ` [PATCH 1/5] pid: Implement task references Eric W. Biederman
2006-01-29 7:24 ` [PATCH 2/5] pid: Add macros for interating through tasks by type Eric W. Biederman
2006-01-29 7:28 ` [PATCH 3/5] pid: Implement kill_tref Eric W. Biederman
2006-01-29 7:33 ` [PATCH 4/5] vt: Update spawnpid to use a task_ref Eric W. Biederman
2006-01-29 7:35 ` [PATCH 5/5] file: Modify struct fown_struct to contain a tref Eric W. Biederman
2006-01-29 8:43 ` Suleiman Souhlal [this message]
2006-01-29 9:18 ` Eric W. Biederman
2006-01-30 10:51 ` [PATCH 4/5] vt: Update spawnpid to use a task_ref Pavel Machek
2006-01-30 20:39 ` Eric W. Biederman
2006-01-30 21:05 ` Pavel Machek
2006-01-30 21:15 ` Eric W. Biederman
2006-01-29 8:46 ` [PATCH 1/5] pid: Implement task references Suleiman Souhlal
2006-01-29 19:05 ` Greg KH
2006-01-29 21:58 ` Eric W. Biederman
2006-01-30 4:51 ` Greg KH
2006-01-30 5:19 ` Eric Dumazet
2006-01-30 5:35 ` Kyle Moffett
2006-01-30 5:46 ` Eric Dumazet
2006-01-30 6:46 ` Kyle Moffett
2006-01-30 18:43 ` Greg KH
2006-01-30 19:58 ` Eric Dumazet
2006-01-30 20:45 ` Eric W. Biederman
2006-01-30 21:32 ` Eric Dumazet
2006-01-30 21:51 ` Eric W. Biederman
2006-01-30 20:13 ` Eric W. Biederman
2006-01-31 6:58 ` Greg KH
2006-01-31 16:04 ` Eric W. Biederman
2006-01-29 8:05 ` [RFC][PATCH 0/5] Task references Kyle Moffett
2006-02-06 8:09 ` Eric W. Biederman
2006-02-06 14:36 ` Serge E. Hallyn
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