linux-kernel - Re: [PATCH] Revert lazy irq disable for simple irqs

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Date:	Thu, 13 Dec 2007 11:22:59 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Russell King <rmk+lkml@....linux.org.uk>,
	Thomas Gleixner <tglx@...utronix.de>,
	Remy Bohmer <linux@...mer.net>,
	Daniel Walker <dwalker@...sta.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] Revert lazy irq disable for simple irqs


* Steven Rostedt <rostedt@...dmis.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@...hat.com>

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

	Ingo
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