From: Arjan van de Ven <arjan@infradead.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>,
"Kok, Auke" <auke-jan.h.kok@intel.com>,
"Frank Ch. Eigler" <fche@redhat.com>,
Jeff Garzik <jeff@garzik.org>,
"Wu, Fengguang" <fengguang.wu@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
Christoph Hellwig <hch@infradead.org>,
Al Viro <viro@ZenIV.linux.org.uk>,
Frederic Weisbecker <fweisbec@gmail.com>
Subject: Re: [PATCH] vfs: Add a trace point in the mark_inode_dirty function
Date: Fri, 20 Nov 2009 06:45:11 -0800 [thread overview]
Message-ID: <20091120064511.268cc8fd@infradead.org> (raw)
In-Reply-To: <20091120104335.GB29143@infradead.org>
On Fri, 20 Nov 2009 05:43:35 -0500
Christoph Hellwig <hch@infradead.org> wrote:
>
> Which btw brings up another good argument - to make the tracing really
> useful we need to have conventions. While the inode number seems to
> be a realtively easy one printing the device is more difficult. XFS
> just prints the raw major/minor to stay simple, ext4 has a
> complicated ad-hoc cache of device names, and this one just prints
> the superblock id string.
I was just trying to stay compatible with blockdump, and it even makes
sense ;)
>
> Of course for a user the name is a lot more meaninful, but also
> relatively expensive to generate. Then again I'm not even sure how
> the last pathname component only here is all that useful - it can't
> be used to easily find the file.
in my case it's not about finding the file, but finding the place in
the application that is doing the writing. The last pathname component
is more than enough for this....
>
--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
next prev parent reply other threads:[~2009-11-20 14:45 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-26 5:53 [PATCH] vfs: Add a trace point in the mark_inode_dirty function Arjan van de Ven
2009-10-26 6:03 ` Andrew Morton
2009-10-26 6:55 ` Arjan van de Ven
2009-10-27 16:01 ` Jason Baron
2009-11-11 2:01 ` Wu Fengguang
2009-11-11 6:34 ` Arjan van de Ven
2009-11-11 6:40 ` Wu Fengguang
2009-11-11 7:42 ` Jeff Garzik
2009-11-11 7:45 ` Ingo Molnar
2009-11-11 7:56 ` Jeff Garzik
2009-11-11 11:15 ` Ingo Molnar
2009-11-11 17:27 ` Kok, Auke
2009-11-11 18:29 ` Theodore Tso
2009-11-11 18:56 ` Ingo Molnar
2009-11-12 2:15 ` Arjan van de Ven
2009-11-11 16:19 ` Arjan van de Ven
2009-11-11 23:10 ` Frank Ch. Eigler
2009-11-11 23:37 ` Kok, Auke
2009-11-12 7:22 ` Ingo Molnar
2009-11-20 10:43 ` Christoph Hellwig
2009-11-20 10:51 ` Ingo Molnar
2009-11-20 14:45 ` Arjan van de Ven [this message]
2009-11-20 16:05 ` Jamie Lokier
2009-11-20 16:45 ` Arjan van de Ven
2009-11-11 2:33 ` Li Zefan
2009-11-15 19:00 ` Arjan van de Ven
2009-11-16 0:56 ` Li Zefan
-- strict thread matches above, loose matches on Subject: below --
2010-11-26 20:56 Arjan van de Ven
2010-11-28 17:52 ` Christoph Hellwig
2010-11-28 18:43 ` Arjan van de Ven
2010-11-29 1:41 ` KOSAKI Motohiro
2010-11-29 4:54 ` Arjan van de Ven
2010-11-29 5:15 ` KOSAKI Motohiro
2010-11-29 14:21 ` Steven Rostedt
2010-11-29 14:41 ` Mathieu Desnoyers
2010-11-29 16:31 ` Steven Rostedt
2010-11-30 0:37 ` KOSAKI Motohiro
2010-11-29 3:53 ` Nick Piggin
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