From: Greg KH <greg@kroah.com>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Jerome Marchand <jmarchan@redhat.com>,
Eric Dumazet <eric.dumazet@gmail.com>,
Vivek Goyal <vgoyal@redhat.com>, Jens Axboe <jaxboe@fusionio.com>,
Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/2 v2] kref: add kref_test_and_get
Date: Wed, 5 Jan 2011 07:57:34 -0800 [thread overview]
Message-ID: <20110105155734.GC2072@kroah.com> (raw)
In-Reply-To: <AANLkTinnVv5wE0U=RrSKR40-u88VC8_XMctx=X0O3Tg7@mail.gmail.com>
On Wed, Jan 05, 2011 at 05:43:22PM +0200, Alexey Dobriyan wrote:
> On Wed, Jan 5, 2011 at 5:02 PM, Jerome Marchand <jmarchan@redhat.com> wrote:
> > Add kref_test_and_get() function, which atomically add a reference only if
> > refcount is not zero. This prevent to add a reference to an object that is
> > already being removed.
>
> Is kref supposed to be used only for "toy" structures where you aren't
> expected to do get possibly dead object?
Of course not, have you read the kref documentation?
{sigh}
Why do we even write these things if no one reads them...
greg k-h
next prev parent reply other threads:[~2011-01-05 16:00 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-06 9:44 [PATCH 1/2] Don't merge different partition's IOs Yasuaki Ishimatsu
2010-12-06 16:08 ` Linus Torvalds
2010-12-07 7:18 ` Satoru Takeuchi
2010-12-07 18:39 ` Vivek Goyal
2010-12-08 7:33 ` Jens Axboe
2010-12-08 7:59 ` Satoru Takeuchi
2010-12-08 8:06 ` Jens Axboe
2010-12-08 8:11 ` Satoru Takeuchi
2010-12-08 14:46 ` Jens Axboe
2010-12-08 15:51 ` Vivek Goyal
2010-12-08 15:58 ` Vivek Goyal
2010-12-10 11:22 ` Jerome Marchand
2010-12-10 16:12 ` Jerome Marchand
2010-12-10 16:55 ` Vivek Goyal
2010-12-14 20:25 ` Jens Axboe
2010-12-17 13:42 ` [PATCH] block: fix accounting bug on cross partition merges Jerome Marchand
2010-12-17 19:06 ` Jens Axboe
2010-12-17 22:32 ` Vivek Goyal
2010-12-23 15:10 ` Jerome Marchand
2010-12-23 15:39 ` Vivek Goyal
2010-12-23 17:04 ` Jerome Marchand
2010-12-24 19:29 ` Vivek Goyal
2011-01-04 15:52 ` [PATCH 1/2] kref: add kref_test_and_get Jerome Marchand
2011-01-04 15:55 ` [PATCH 2/2] block: fix accounting bug on cross partition merges Jerome Marchand
2011-01-04 21:00 ` Greg KH
2011-01-05 13:51 ` Jerome Marchand
2011-01-05 16:00 ` Greg KH
2011-01-05 16:19 ` Jerome Marchand
2011-01-05 16:27 ` Greg KH
2011-01-05 13:55 ` Jens Axboe
2011-01-05 15:58 ` Greg KH
2011-01-05 18:46 ` Jens Axboe
2011-01-05 20:08 ` Greg KH
2011-01-05 21:38 ` Jens Axboe
2011-01-05 22:16 ` Greg KH
2011-01-06 9:46 ` Jens Axboe
2011-01-05 14:00 ` Jens Axboe
2011-01-05 14:09 ` Jerome Marchand
2011-01-05 14:17 ` Jens Axboe
2011-01-04 16:05 ` [PATCH 1/2] kref: add kref_test_and_get Eric Dumazet
2011-01-05 15:02 ` [PATCH 1/2 v2] " Jerome Marchand
2011-01-05 15:43 ` Alexey Dobriyan
2011-01-05 15:57 ` Greg KH [this message]
2011-01-05 15:56 ` Greg KH
2011-01-04 20:57 ` [PATCH 1/2] " Greg KH
2011-01-05 13:35 ` Jerome Marchand
2011-01-05 15:55 ` Greg KH
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