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From: Ingo Molnar <mingo@elte.hu>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Russell King <rmk+lkml@arm.linux.org.uk>,
	Thomas Gleixner <tglx@linutronix.de>,
	Remy Bohmer <linux@bohmer.net>,
	Daniel Walker <dwalker@mvista.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] Revert lazy irq disable for simple irqs
Date: Thu, 13 Dec 2007 11:22:59 +0100	[thread overview]
Message-ID: <20071213102259.GQ8977@elte.hu> (raw)
In-Reply-To: <Pine.LNX.4.58.0712121516400.22305@gandalf.stny.rr.com>


* Steven Rostedt <rostedt@goodmis.org> wrote:

> [This patch *is* for mainline Linux]
> 
> In commit 76d2160147f43f982dfe881404cfde9fd0a9da21 lazy irq disabling 
> was implemented, and the simple irq handler had a masking set to it.
> 
> Remy Bohmer discovered that some devices in the ARM architecture would 
> trigger the mask, but never unmask it. His patch to do the unmasking 
> was questioned by Russell King about masking simple irqs to begin 
> with. Looking further, it was discovered that the problems Remy was 
> seeing was due to improper use of the simple handler by devices, and 
> he later submitted patches to fix those. But the issue that was 
> uncovered was that the simple handler should never mask.
> 
> This patch reverts the masking in the simple handler.
> 
> Signed-off-by: Steven Rostedt <srostedt@redhat.com>

thanks, applied. This is for v2.6.24 too, right?

	Ingo

  reply	other threads:[~2007-12-13 10:23 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-12 20:20 Steven Rostedt
2007-12-13 10:22 ` Ingo Molnar [this message]
2007-12-13 13:00   ` Steven Rostedt
2007-12-13 10:26 ` Russell King
2007-12-13 11:01 ` Remy Bohmer

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