From: Andi Kleen <andi@firstfloor.org>
To: Nick Piggin <npiggin@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>,
Al Viro <viro@ZenIV.linux.org.uk>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
Frank Mayhar <fmayhar@google.com>,
John Stultz <johnstul@us.ibm.com>,
Andi Kleen <ak@linux.intel.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Greg Kroah-Hartman <gregkh@suse.de>
Subject: Re: [patch 1/4] fs: cleanup files_lock
Date: Fri, 04 Jun 2010 16:39:20 +0200 [thread overview]
Message-ID: <87mxvax3on.fsf@basil.nowhere.org> (raw)
In-Reply-To: <20100604142052.GD26335@laptop> (Nick Piggin's message of "Sat\, 5 Jun 2010 00\:20\:52 +1000")
Nick Piggin <npiggin@suse.de> writes:
>
> Again, this would be nice, but I didn't see an easy way to do it.
> Even if refcounting obsoleted may_remount_ro, we still have
> mark_files_ro. It's no more complex to rip this all out after my
> patch. I don't see the problem in doing this patch. It has good
> numbers.
Yes agreed. The global lock is currently really painful on workloads
that do a lot of opens and anything to make this better would be good asap.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2010-06-04 14:39 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-04 6:43 [patch 0/4] Initial vfs scalability patches again Nick Piggin
2010-06-04 6:43 ` [patch 1/4] fs: cleanup files_lock Nick Piggin
2010-06-04 8:38 ` Christoph Hellwig
2010-06-04 14:20 ` Nick Piggin
2010-06-04 14:39 ` Andi Kleen [this message]
2010-06-04 15:10 ` Christoph Hellwig
2010-06-04 18:39 ` [PATCH, RFC] tty: stop abusing file->f_u.fu_list Christoph Hellwig
2010-06-04 19:35 ` Al Viro
2010-06-05 11:39 ` Nick Piggin
2010-06-08 5:22 ` Nick Piggin
2010-06-04 6:43 ` [patch 2/4] lglock: introduce special lglock and brlock spin locks Nick Piggin
2010-06-04 7:56 ` Eric Dumazet
2010-06-04 14:13 ` Nick Piggin
2010-06-04 14:24 ` Eric Dumazet
2010-06-04 15:03 ` Paul E. McKenney
2010-06-04 15:12 ` Nick Piggin
2010-06-04 6:43 ` [patch 3/4] fs: scale files_lock Nick Piggin
2010-06-04 6:43 ` [patch 4/4] fs: brlock vfsmount_lock Nick Piggin
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