From: Nicholas Mc Guire <der.herr@hofr.at>
To: linux-rt-users@vger.kernel.org
Cc: LKML <linux-kernel@vger.kernel.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>,
Peter Zijlstra <peterz@infradead.org>,
Carsten Emde <C.Emde@osadl.org>,
Thomas Gleixner <tglx@linutronix.de>,
Andreas Platschek <platschek@ict.tuwien.ac.at>
Subject: [PATCH RT 0/5] preempt_disable/enable -> migrate_disable/enable pushdown proposals
Date: Mon, 10 Feb 2014 16:36:53 +0100 [thread overview]
Message-ID: <20140210153653.GA20017@opentech.at> (raw)
a small series of preempt_disable/enable -> migrate_disable/enable pushdown
proposals
In mainline a number of preempt_disable/enable are actually topology control
and not actual concurrency control - these cases can be pushed down to a
preemptible migrate_disable/enable.
This little series contains a few pushdowns from preempt_disable to
migrate_disable where code pattern scans using cocci scripts suggested this
to be possible. The cases detected were then reviewed and tested with the
migrate_disable/enable respectively with the preempt_disable/enable
completely removed in one case.
Testing was done but is of very limited use for locking/migration related
issues, so a review of the code analysis/rational is requested along with
additional testing.
thx!
hofrat
reply other threads:[~2014-02-10 15:36 UTC|newest]
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