From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Nicholas Mc Guire <der.herr@hofr.at>
Cc: linux-rt-users@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Andreas Platschek <platschek@ict.tuwien.ac.at>
Subject: Re: [PATCH] migrate_disable pushd down in rt_read_trylock
Date: Fri, 29 Nov 2013 16:14:01 +0100 [thread overview]
Message-ID: <20131129151401.GD31099@linutronix.de> (raw)
In-Reply-To: <20131123005158.GA16338@opentech.at>
* Nicholas Mc Guire | 2013-11-23 01:51:58 [+0100]:
>>From 5c9a0c1510ec29c1e148f66f3c111f52f7565df1 Mon Sep 17 00:00:00 2001
>From: Nicholas Mc Guire <der.herr@hofr.at>
>Date: Fri, 22 Nov 2013 02:41:48 -0500
>Subject: [PATCH] migrate_disable pushd down in rt_read_trylock
>
> No need to migrate_disable before requesting the lock and no need to
> speculatively disable/enable on every recursive call. migration_disable
> can be done at the latest point in the code before returning an acquired
> ``lock.
>
> patch is on top of 3.12-rt2
>
> No change of functionality
Applied without this line.
>Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Sebastian
next prev parent reply other threads:[~2013-11-29 15:14 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-23 0:51 [PATCH] migrate_disable pushd down in rt_read_trylock Nicholas Mc Guire
2013-11-29 15:14 ` Sebastian Andrzej Siewior [this message]
2013-11-29 15:44 ` Sebastian Andrzej Siewior
2013-11-30 2:30 ` Nicholas Mc Guire
2013-11-30 6:47 ` Nicholas Mc Guire
2013-12-15 13:16 ` Sebastian Andrzej Siewior
2013-12-15 14:15 ` Nicholas Mc Guire
2013-12-15 15:06 ` Sebastian Andrzej Siewior
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