linux-kernel - [PATCH 0/2] irq_work: A couple fixes

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Message-Id: <1351611301-3520-1-git-send-email-fweisbec@gmail.com>
Date:	Tue, 30 Oct 2012 16:34:59 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [PATCH 0/2] irq_work: A couple fixes

Hi,

The first patch is extracted from my printk patches, with changelog
reworked. The second patch is an addition.

And I still wonder if cpu_relax() is enough to prevent the compiler
from correctly reloading work->flags in irq_work_sync() loop.
Do we need ACCESS_ONCE()?

Thanks.

Frederic Weisbecker (2):
  irq_work: Fix racy check on work pending flag
  irq_work: Fix racy IRQ_WORK_BUSY flag setting

 kernel/irq_work.c |   29 ++++++++++++++++++++++-------
 1 files changed, 22 insertions(+), 7 deletions(-)

-- 
1.7.5.4

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