From: Zheng Liu <gnehzuil.liu@gmail.com>
To: Theodore Ts'o <tytso@mit.edu>
Cc: Eric Sandeen <sandeen@redhat.com>, Dave Jones <davej@redhat.com>,
Zheng Liu <wenqing.lz@taobao.com>,
"linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>
Subject: Re: [PATCH] ext4: use percpu counter for extent cache count
Date: Mon, 4 Mar 2013 00:39:41 +0800 [thread overview]
Message-ID: <20130303163940.GA30459@gmail.com> (raw)
In-Reply-To: <20130302152644.GA22941@thunk.org>
On Sat, Mar 02, 2013 at 10:26:44AM -0500, Theodore Ts'o wrote:
> On Fri, Mar 01, 2013 at 12:02:34PM -0600, Eric Sandeen wrote:
> >
> > I was mostly keying off what quota felt was best, I guess.
> > I'm not wedded to either approach, it was just a thought.
> > So you can take it or leave it. :)
>
> I'll take it, but for the record, there's a reason why I label patches
> with "I haven't tested this yet" disclaimers.
>
> For future reference, calling percpu_counter_init() and
> percpu_counter_destroy() is not optional --- without them, in your
> original patch, the kernel will crash them the first time an ext4 file
> system mount is attempted.
>
> No worries though, no harm done --- but it's better if people don't
> rely on me to catch bugs before they go into the tree. :-)
Really sorry for the delay reply.
Dave, thank you very much for your test and reporting this regression.
Ted, Eric, thank you very much for fixing it.
I really think I need to be responsible for reviewing and testing this
patch because I screw it up. My apology.
Thanks,
- Zheng
next prev parent reply other threads:[~2013-03-03 16:24 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-26 20:39 [GIT PULL] ext4 updates for 3.9 Theodore Ts'o
2013-02-27 12:47 ` Markus Trippelsdorf
2013-02-27 15:34 ` Theodore Ts'o
2013-02-27 15:44 ` Markus Trippelsdorf
2013-02-27 17:01 ` Markus Trippelsdorf
2013-02-27 17:10 ` gnehzuil.liu
2013-02-27 17:22 ` Markus Trippelsdorf
2013-02-27 17:38 ` gnehzuil.liu
2013-02-27 17:45 ` Markus Trippelsdorf
2013-02-27 17:52 ` Linus Torvalds
2013-02-27 18:49 ` Theodore Ts'o
2013-02-27 18:56 ` Markus Trippelsdorf
2013-02-27 19:19 ` Dave Jones
2013-02-27 19:27 ` Zheng Liu
2013-02-27 19:29 ` Theodore Ts'o
2013-02-27 20:12 ` [GIT PULL URGENT] ext4 regression fix " Linus Torvalds
2013-02-27 20:15 ` Theodore Ts'o
2013-02-27 20:23 ` Linus Torvalds
2013-02-27 20:41 ` Borislav Petkov
2013-03-01 3:30 ` Dave Jones
2013-03-01 4:00 ` Theodore Ts'o
2013-03-01 5:00 ` [PATCH] ext4: optimize ext4_es_shrink() Theodore Ts'o
2013-03-01 16:11 ` Dave Jones
2013-03-01 16:26 ` Theodore Ts'o
2013-03-01 16:40 ` Dave Jones
2013-03-01 16:40 ` Eric Sandeen
2013-03-01 16:42 ` [PATCH] ext4: use percpu counter for extent cache count Eric Sandeen
2013-03-01 18:00 ` Theodore Ts'o
2013-03-01 18:02 ` Eric Sandeen
2013-03-02 15:26 ` Theodore Ts'o
2013-03-03 16:39 ` Zheng Liu [this message]
2013-03-04 16:11 ` Eric Sandeen
2013-03-02 19:54 ` [GIT PULL URGENT] ext4 regression fix for 3.9 Linus Torvalds
2013-03-02 23:15 ` Theodore Ts'o
2013-02-27 20:14 ` Theodore Ts'o
2013-02-27 20:58 ` [GIT PULL] ext4 updates " Dmitry Monakhov
2013-02-27 21:30 ` Theodore Ts'o
2013-03-01 15:41 ` Eric Sandeen
2013-02-28 13:18 ` Dave Chinner
2013-02-27 18:57 ` Dave Jones
2013-02-27 19:04 ` Theodore Ts'o
2013-02-27 19:11 ` Dave Jones
2013-02-27 19:19 ` Theodore Ts'o
2013-02-27 18:59 ` Zheng Liu
2013-02-27 19:06 ` Borislav Petkov
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