From: Christoph Hellwig <hch@infradead.org>
To: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: Nick Piggin <npiggin@suse.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-fsdevel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [patch 1/2] fs: mnt_want_write speedup
Date: Thu, 2 Apr 2009 16:31:53 -0400 [thread overview]
Message-ID: <20090402203152.GA16600@infradead.org> (raw)
In-Reply-To: <1238697440.8846.46.camel@nimitz>
On Thu, Apr 02, 2009 at 11:37:20AM -0700, Dave Hansen wrote:
> > > Page faults themselves? Which path was that from?
> >
> > Yes. file_update_time.
>
> We should be able to use your mnt_clone_write() optimization separate
> from the mnt_want_write() speedup here, right?
Does file_update_time even need a separate mnt_want_write? It should
always be after a mnt_want_write which we need for the actual data
write.
next prev parent reply other threads:[~2009-04-02 20:32 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-10 14:37 [patch 1/2] fs: mnt_want_write speedup Nick Piggin
2009-03-10 14:38 ` [patch 2/2] fs: introduce mnt_clone_write Nick Piggin
2009-03-10 14:55 ` Matthew Wilcox
2009-03-10 15:08 ` Nick Piggin
2009-03-10 14:48 ` [patch 1/2] fs: mnt_want_write speedup Matthew Wilcox
2009-03-10 15:03 ` Nick Piggin
2009-03-10 15:31 ` Nick Piggin
2009-03-11 22:11 ` Dave Hansen
2009-03-12 4:13 ` Nick Piggin
2009-03-18 19:13 ` Dave Hansen
2009-04-02 18:22 ` Nick Piggin
2009-04-02 18:37 ` Dave Hansen
2009-04-02 20:31 ` Christoph Hellwig [this message]
2009-04-03 1:29 ` Nick Piggin
2009-04-02 18:43 ` Al Viro
2009-04-02 18:48 ` Al Viro
2009-04-02 19:08 ` Dave Hansen
2009-04-03 10:31 ` Al Viro
2009-04-03 1:31 ` Nick Piggin
2009-04-02 18:08 ` Andrew Morton
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