linux-kernel - Re: [PATCH] sysfs: Cache the last sysfs_dirent to improve readdir scalability v2

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Message-ID: <20100102055947.GA3428@kroah.com>
Date:	Fri, 1 Jan 2010 21:59:47 -0800
From:	Greg KH <greg@...ah.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Borislav Petkov <petkovbb@...glemail.com>,
	David Airlie <airlied@...ux.ie>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Al Viro <viro@...IV.linux.org.uk>
Subject: Re: [PATCH] sysfs: Cache the last sysfs_dirent to improve readdir
	scalability v2

On Fri, Jan 01, 2010 at 03:10:49PM -0800, Linus Torvalds wrote:
> 
> So I guess that's an "Ack", although I'd prefer it to get some more 
> testing and perhaps go through Greg's tree as sysfs patches usually go.
> 
> And by "testing" I mean both the "yes, this second version also breaks the 
> lockdep chain and avoids the warning", but also some kind of actual 
> testing of /sysfs itself. If there is any.

I'll queue this up in my tree on Monday to get it some testing.

thanks,

greg k-h
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