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From: Frederik Deweerdt <deweerdt@free.fr>
To: David Miller <davem@davemloft.net>
Cc: akpm@osdl.org, linux-kernel@vger.kernel.org,
	acme@ghostprotocols.net, jet@gyve.org
Subject: Re: [patch] Use rwsems instead of custom locking scheme in net/socket.c and net/dccp/ccid.c
Date: Thu, 10 Aug 2006 15:19:16 +0200	[thread overview]
Message-ID: <20060810131916.GA1221@slug> (raw)
In-Reply-To: <20060810.055711.56053014.davem@davemloft.net>

On Thu, Aug 10, 2006 at 05:57:11AM -0700, David Miller wrote:
> From: Frederik Deweerdt <deweerdt@free.fr>
> Date: Thu, 10 Aug 2006 14:13:36 +0200
> 
> > This patch aims at removing two implementations (spotted by Masatake YAMATO) of
> > pseudo-rwlocks using a spinlock_t and an atomic_t. One in net/socket.c
> > and another in net/bluetooth/af_bluetooth.c. I think that both could be
> > converted to rwsems, saving some lines of code.
> 
> The net/socket.c one has been converted to RCU by Stephen
> Hemminger already.
> 
> If the bluetooth case is in an important code path it should
> use RCU as well.
Sorry, I made a mistake there: net/bluetooth/af_bluetooth.c should read
net/dccp/ccid.c. Does your comment regarding af_bluetooth.c applies to
ccid.c as well?
Also, is there a place where I can find Stephen Hemminger's work?
- Note, this is pure curiosity, it can wait a kernel release or two :) -

Thanks,
Frederik

  reply	other threads:[~2006-08-10 13:19 UTC|newest]

Thread overview: 126+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-06 10:08 2.6.18-rc3-mm2 Andrew Morton
2006-08-06 11:09 ` 2.6.18-rc3-mm2 Michal Piotrowski
2006-08-07  9:52   ` 2.6.18-rc3-mm2 Balbir Singh
2006-08-07 12:16     ` 2.6.18-rc3-mm2 Michal Piotrowski
2006-08-07 14:05       ` 2.6.18-rc3-mm2 Balbir Singh
2006-08-06 13:33 ` 2.6.18-rc3-mm2 Mattia Dongili
2006-08-06 14:55   ` 2.6.18-rc3-mm2 [BUG at mm/vmscan.c:383!] Hugh Dickins
2006-08-06 17:02     ` Mattia Dongili
2006-08-06 14:11 ` 2.6.18-rc3-mm2 Reuben Farrelly
     [not found] ` <b637ec0b0608060848k22af58cbo6f13cee19498c2d2@mail.gmail.com>
2006-08-06 19:09   ` 2.6.18-rc3-mm2 Andrew Morton
2006-08-07  2:18     ` 2.6.18-rc3-mm2 Dmitry Torokhov
2006-08-07 18:47       ` 2.6.18-rc3-mm2 Fabio Comolli
2006-08-07 19:00         ` 2.6.18-rc3-mm2 Dmitry Torokhov
2006-08-08 14:41           ` 2.6.18-rc3-mm2 Rafael J. Wysocki
2006-08-08 17:42             ` 2.6.18-rc3-mm2 Dmitry Torokhov
2006-08-08 18:16               ` 2.6.18-rc3-mm2 Fabio Comolli
2006-08-08 18:24                 ` 2.6.18-rc3-mm2 Dmitry Torokhov
2006-08-08 18:36                   ` 2.6.18-rc3-mm2 Fabio Comolli
2006-08-09  3:47                     ` 2.6.18-rc3-mm2 Dmitry Torokhov
2006-08-09  7:11                       ` 2.6.18-rc3-mm2 Rafael J. Wysocki
2006-08-09 19:47                       ` 2.6.18-rc3-mm2 Fabio Comolli
2006-08-09 20:13                         ` 2.6.18-rc3-mm2 Dmitry Torokhov
2006-08-08 20:32               ` 2.6.18-rc3-mm2 Rafael J. Wysocki
2006-08-08 18:14           ` 2.6.18-rc3-mm2 Fabio Comolli
2006-08-06 22:42 ` 2.6.18-rc3-mm2 Rafael J. Wysocki
2006-08-06 22:54   ` 2.6.18-rc3-mm2 Andrew Morton
2006-08-07  9:15     ` 2.6.18-rc3-mm2 Rafael J. Wysocki
2006-08-07 20:34       ` 2.6.18-rc3-mm2 Rafael J. Wysocki
2006-08-07 20:55         ` 2.6.18-rc3-mm2 Andrew Morton
2006-08-08  5:21           ` 2.6.18-rc3-mm2 Jens Axboe
2006-08-07  2:18   ` 2.6.18-rc3-mm2 Dmitry Torokhov
2006-08-07  2:20     ` 2.6.18-rc3-mm2 Dmitry Torokhov
2006-08-07  2:07 ` 2.6.18-rc3-mm2 Grant Coady
2006-08-07  9:28 ` swsusp regression [Was: 2.6.18-rc3-mm2] Jiri Slaby
2006-08-07 16:23   ` Jason Lunz
2006-08-07 20:47     ` Rafael J. Wysocki
2006-08-08  8:41       ` Jens Axboe
2006-08-08  9:49         ` Jiri Slaby
2006-08-08 10:43           ` Jens Axboe
2006-08-08 10:08       ` Jiri Slaby
2006-08-08 10:43         ` Jens Axboe
2006-08-08 10:59           ` Rafael J. Wysocki
2006-08-08 11:04             ` Jens Axboe
2006-08-08 11:07               ` Jens Axboe
2006-08-08 11:16                 ` Rafael J. Wysocki
2006-08-08 11:19                   ` Jens Axboe
2006-08-08 13:50                     ` Rafael J. Wysocki
2006-08-08 14:06                       ` Jens Axboe
2006-08-08 16:41                         ` Jiri Slaby
2006-08-08 17:53                           ` Jens Axboe
2006-08-07 21:09     ` Jiri Slaby
2006-08-07 13:40 ` x86_64 command line truncated Andy Whitcroft
2006-08-07 14:05   ` Andi Kleen
2006-08-07 14:37     ` x86_64 command line truncated II Andi Kleen
2006-08-07 14:42       ` Andy Whitcroft
2006-08-07 14:46         ` Andi Kleen
2006-08-07 15:04           ` Andy Whitcroft
2006-08-07 15:12             ` [PATCH] x86_64 dirty fix to restore dual command line store Andy Whitcroft
2006-08-07 21:47               ` Keith Mannthey
2006-08-07 21:59                 ` Keith Mannthey
2006-08-07 14:38     ` x86_64 command line truncated Andy Whitcroft
2006-08-07 15:15       ` Andrew Morton
2006-08-07 15:58         ` Andi Kleen
2006-08-07 15:49 ` [-mm patch] make arch/i386/kernel/acpi/boot.c:acpi_force static Adrian Bunk
2006-08-07 16:07   ` Andi Kleen
2006-08-07 15:49 ` [-mm patch] make arch/i386/kernel/apic.c:enable_local_apic static Adrian Bunk
2006-08-07 15:49 ` [-mm patch] net/: make code static Adrian Bunk
2006-08-08  4:51   ` David Miller
2006-08-07 15:50 ` [-mm patch] drivers/crypto/geode-aes.c: cleanups Adrian Bunk
2006-08-07 19:38 ` resume from S3 regression [Was: 2.6.18-rc3-mm2] Mattia Dongili
2006-08-07 20:02   ` Andrew Morton
2006-08-07 20:57     ` Mattia Dongili
2006-08-07 22:09       ` Mattia Dongili
2006-08-07 21:04 ` [RFC: -mm patch] bcm43xx_main.c: remove 3 functions Adrian Bunk
2006-08-08 18:32   ` Michael Buesch
2006-08-08 19:42     ` Adrian Bunk
2006-08-09  4:47       ` Michael Buesch
2006-08-08 22:14     ` Jeff Garzik
2006-08-08 14:39 ` 2.6.18-rc3-mm2: reiserfs problem? Rafael J. Wysocki
2006-08-08 15:12   ` Andrew Morton
     [not found]   ` <20060804192540.17098.39244.stgit@warthog.cambridge.redhat.com>
2006-08-08 17:23     ` [PATCH] ReiserFS: Make sure all dentries refs are released before calling kill_block_super() David Howells
2006-08-08 23:16       ` Rafael J. Wysocki
2006-08-09 10:14         ` David Howells
2006-08-09 10:23           ` Rafael J. Wysocki
2006-08-09 11:00         ` David Howells
2006-08-09 13:43     ` [PATCH] ReiserFS: Make sure all dentries refs are released before calling kill_block_super() [try #2] David Howells
2006-08-09 21:56       ` Rafael J. Wysocki
2006-08-10 10:16         ` David Howells
2006-08-09 19:06 ` 2.6.18-rc3-mm2 - ext3 locking issue? Valdis.Kletnieks
2006-08-09 20:01   ` Andrew Morton
2006-08-09 20:43     ` Valdis.Kletnieks
2006-08-10  3:32       ` Valdis.Kletnieks
2006-08-10 11:40         ` Jiri Slaby
2006-08-10 15:27           ` Andrew Morton
2006-08-10 17:33             ` Mattia Dongili
2006-08-10 17:43               ` Jiri Slaby
2006-08-10 17:44               ` Valdis.Kletnieks
2006-08-11  6:17                 ` Andrew Morton
2006-08-11  6:55                   ` Valdis.Kletnieks
2006-08-11 22:39           ` Laurent Riffard
2006-08-15 23:38   ` Valdis.Kletnieks
2006-08-10  9:04 ` 2.6.18-rc3-mm2 - OOM storm Laurent Riffard
2006-08-10  9:19   ` Andrew Morton
2006-08-10 23:20     ` Laurent Riffard
2006-08-11 12:31       ` Laurent Riffard
2006-08-11 21:50         ` Mike Galbraith
2006-08-11  8:33     ` Mike Galbraith
2006-08-11  6:55       ` Andrew Morton
2006-08-11  9:37         ` Mike Galbraith
2006-08-12 15:07     ` [patch] " Mike Galbraith
2006-08-12 21:26       ` Laurent Riffard
2006-08-10 12:13 ` [patch] Use rwsems instead of custom locking scheme in net/socket.c and net/dccp/ccid.c Frederik Deweerdt
2006-08-10 12:57   ` David Miller
2006-08-10 13:19     ` Frederik Deweerdt [this message]
2006-08-10 13:43 ` 2.6.18-rc3-mm2 [oops: shrink_dcache_for_umount_subtree ?] Reuben Farrelly
2006-08-10 15:38   ` Andrew Morton
2006-08-10 17:38 ` 2.6.18-rc3-mm2 - IPV6_MULTIPLE_TABLES borked Valdis.Kletnieks
2006-08-10 20:02   ` Patrick McHardy
2006-08-10 21:44     ` Valdis.Kletnieks
2006-08-11  2:15 ` 2.6.18-rc3-mm2 - BUG in rt6_lookup() from ipv6_del_addr() Valdis.Kletnieks
2006-08-11  4:20   ` David Miller
2006-08-11 18:11 ` 2.6.18-rc3-mm2 Mark Haverkamp
2006-08-11 18:36   ` 2.6.18-rc3-mm2 Andrew Morton
2006-08-11 20:31     ` 2.6.18-rc3-mm2 Mark Haverkamp
2006-08-11 22:58       ` 2.6.18-rc3-mm2 Andrew Morton
2006-08-23 17:02         ` 2.6.18-rc3-mm2 Mark Haverkamp

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