linux-kernel - Re: AIM7 40% regression with 2.6.26-rc1

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Date:	Wed, 7 May 2008 14:59:49 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>,
	Ingo Molnar <mingo@...e.hu>, Matthew Wilcox <matthew@....cx>,
	LKML <linux-kernel@...r.kernel.org>,
	Alexander Viro <viro@....linux.org.uk>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: AIM7 40% regression with 2.6.26-rc1

On Wed, 07 May 2008 13:00:14 +0200
Andi Kleen <andi@...stfloor.org> wrote:

> "Zhang, Yanmin" <yanmin_zhang@...ux.intel.com> writes:
> > 3) Caller of lcok_kernel are sys_fcntl/vfs_ioctl/tty_release/chrdev_open.
> 
> I have an older patchkit that introduced unlocked_fnctl for some cases. It was 
> briefly in mm but then dropped. Sounds like it is worth resurrecting?
> 
> tty_* is being taken care of by Alan.

The tty open/close paths are probably a few months away from dropping the
BKL.

Alan
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