From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Jon Smirl <jonsmirl@gmail.com>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: tty's use of file_list_lock and file_move
Date: Tue, 11 Jul 2006 00:18:20 +0100 [thread overview]
Message-ID: <1152573500.27368.215.camel@localhost.localdomain> (raw)
In-Reply-To: <9e4733910607101109w46915fbbl19bdd8664e1ca4d@mail.gmail.com>
Ar Llu, 2006-07-10 am 14:09 -0400, ysgrifennodd Jon Smirl:
> > We hold the ->files->file_lock because we have to walk other processes
> > file tables in a safe fashion in SAK. That one is fairly clear.
>
> What if do_SAK did something like this?
>
> copy the tty struct to new_tty
> NULL out the file list in new_tty
> insert new_tty into the array tracking tty minors so that open will
> find the new one
SAK isn't locking against the tty layer ,its locking against the VFS
when it does htis
next prev parent reply other threads:[~2006-07-10 23:00 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-10 15:10 Jon Smirl
2006-07-10 17:33 ` Alan Cox
2006-07-10 17:27 ` Jon Smirl
2006-07-10 18:05 ` Alan Cox
2006-07-10 18:09 ` Jon Smirl
2006-07-10 23:18 ` Alan Cox [this message]
2006-07-10 22:35 ` Jon Smirl
2006-07-10 23:15 ` Alan Cox
2006-07-10 23:04 ` Jon Smirl
2006-07-10 23:49 ` Jon Smirl
2006-07-11 1:29 ` Theodore Tso
2006-07-11 2:16 ` Jon Smirl
2006-07-11 10:12 ` Alan Cox
2006-07-11 12:28 ` Jon Smirl
2006-07-11 13:15 ` Paulo Marques
2006-07-11 13:42 ` Jon Smirl
2006-07-11 3:33 ` Jon Smirl
2006-07-11 19:52 ` Russell King
2006-07-11 19:44 ` Russell King
2006-07-11 22:08 ` Jon Smirl
2006-07-11 22:37 ` Alan Cox
2006-07-11 23:28 ` Paul Fulghum
2006-07-12 0:00 ` Jon Smirl
2006-07-11 23:50 ` Jon Smirl
2006-07-12 3:55 ` Jon Smirl
2006-07-12 11:37 ` Alan Cox
2006-07-10 23:39 ` Theodore Tso
2006-07-11 0:25 ` Jon Smirl
2006-07-12 6:27 ` Pekka Enberg
2006-07-12 11:19 ` Alan Cox
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