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From: Andrew Morton <akpm@osdl.org>
To: Roger Luethi <rl@hellgate.ch>
Cc: zlynx@acm.org, linux-kernel@vger.kernel.org, linville@tuxdriver.com
Subject: Re: 2.6.17-rc1-mm1
Date: Wed, 5 Apr 2006 00:29:09 -0700	[thread overview]
Message-ID: <20060405002909.2ab4482b.akpm@osdl.org> (raw)
In-Reply-To: <20060405070150.GA10351@k3.hellgate.ch>

Roger Luethi <rl@hellgate.ch> wrote:
>
> Any suggestions for an elegant solution?

Move the locking down lower, so it just locks the stuff which needs locking?

It all depends on what the lock's role is, and so often that's a big secret.

If the intention is to prevent concurrent execution of mdio_read()
(reasonable) and we really need that 1 msec delay between writing the
registers and reading back the result then we're somewhat screwed.  Either
use a sleeping lock to protect that hardware state or go back to using
udelay().

  reply	other threads:[~2006-04-05  7:30 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-04  8:45 2.6.17-rc1-mm1 Andrew Morton
2006-04-04 14:31 ` 2.6.17-rc1-mm1 Kumar Gala
2006-04-04 16:02 ` 2.6.17-mm1: drivers/w1/: patch undoes reasonable cleanups Adrian Bunk
2006-04-04 16:35   ` Evgeniy Polyakov
2006-04-04 16:29 ` 2.6.17-rc1-mm1: KEXEC became SMP-only Adrian Bunk
2006-04-04 17:22   ` Zachary Amsden
2006-04-04 17:50     ` Eric W. Biederman
2006-04-06 22:37     ` Adrian Bunk
2006-04-04 17:43   ` Eric W. Biederman
2006-04-04 17:51     ` Zachary Amsden
2006-04-04 18:43       ` Eric W. Biederman
2006-04-04 19:23         ` Zachary Amsden
2006-04-04 19:38           ` Muli Ben-Yehuda
2006-04-04 20:25           ` Andrew Morton
2006-04-04 22:02             ` Zachary Amsden
2006-04-04 22:19               ` Andrew Morton
2006-04-04 22:34                 ` Zachary Amsden
2006-04-04 22:38                   ` Andrew Morton
2006-04-05  0:21                 ` Martin Bligh
2006-04-05  2:45                   ` Eric W. Biederman
2006-04-04 16:29 ` [-mm patch] i386: pre_intr_init_hook optimization Adrian Bunk
2006-04-04 17:16   ` Zachary Amsden
2006-04-04 16:29 ` 2.6.17-rc1-mm1: why did acpi_ns_build_external_path() become global? Adrian Bunk
2006-04-04 16:30 ` [-mm patch] drivers/media/video/bt866.c: small fixes Adrian Bunk
2006-04-04 18:32   ` Martin Samuelsson
2006-04-05  7:42     ` Andrew Morton
2006-04-05  9:02       ` Adrian Bunk
2006-04-05 13:44       ` Martin Samuelsson
2006-04-05  8:32     ` Johannes Stezenbach
2006-04-05 13:54       ` Martin Samuelsson
2006-04-04 16:30 ` [-mm patch] fs/nfsd/nfs4state.c: make a struct static Adrian Bunk
2006-04-04 16:50   ` [NFS] " J. Bruce Fields
2006-04-04 17:29     ` Adrian Bunk
2006-04-04 20:53 ` 2.6.17-rc1-mm1: mlockall() regression on x86_64 Rafael J. Wysocki
2006-04-04 22:24   ` Andrew Morton
2006-04-04 21:53 ` 2.6.17-rc1-mm1 Zan Lynx
2006-04-04 22:09   ` 2.6.17-rc1-mm1 Andrew Morton
2006-04-05  7:01     ` 2.6.17-rc1-mm1 Roger Luethi
2006-04-05  7:29       ` Andrew Morton [this message]
2006-04-05 22:01         ` 2.6.17-rc1-mm1 Roger Luethi
2006-04-04 23:38 ` 2.6.17-rc1-mm1 Luck, Tony
2006-04-05  2:05   ` 2.6.17-rc1-mm1 Zou Nan hai
2006-04-05 16:15     ` 2.6.17-rc1-mm1 Bjorn Helgaas
2006-04-05 21:17       ` 2.6.17-rc1-mm1 Luck, Tony
2006-04-05 21:37         ` 2.6.17-rc1-mm1 Andrew Morton
2006-04-05 21:39         ` 2.6.17-rc1-mm1 Andreas Schwab
2006-04-05 22:01         ` 2.6.17-rc1-mm1 Bjorn Helgaas
2006-04-06  1:49           ` 2.6.17-rc1-mm1 Antonino A. Daplas
2006-04-06 10:21           ` 2.6.17-rc1-mm1 Russell King
2006-04-06 10:34             ` 2.6.17-rc1-mm1 Russell King
2006-04-06 14:55               ` 2.6.17-rc1-mm1 Bjorn Helgaas
2006-04-06 10:16         ` 2.6.17-rc1-mm1 Russell King
2006-04-05  2:27 ` 2.6.17-rc1-mm1, nfsd/reiser4 BUG Zan Lynx
2006-04-07 12:27 ` 2.6.17-rc1-mm1: drivers/acpi/numa.c compile error Adrian Bunk
2006-04-07 20:59   ` Andrew Morton
2006-04-09 15:44     ` Adrian Bunk
2006-04-09 15:57       ` Randy.Dunlap
2006-04-07 20:58 ` 2.6.17-rc1-mm1 - detects buggy TSC on GEODE Jim Cromie
2006-04-08  0:07   ` Andrew Morton
2006-04-08  0:25     ` john stultz
2006-04-08  1:15     ` Jim Cromie
2006-04-13  7:39 ` 2.6.17-rc1-mm1 Heiko Carstens
2006-04-13  8:13   ` 2.6.17-rc1-mm1 Andrew Morton
2006-04-14 16:07     ` 2.6.17-rc1-mm1 Alasdair G Kergon
2006-04-05 22:50 2.6.17-rc1-mm1 Luck, Tony

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