linux-kernel - [tip:irq/core] genirq: Add IRQF_NO

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Message-ID: <tip-0c4602ff88d6d6ef0ee6d228ee9acaa6448ff6f5@git.kernel.org>
Date:	Sat, 26 Feb 2011 16:22:54 GMT
From:	tip-bot for Thomas Gleixner <tglx@...utronix.de>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	peterz@...radead.org, tglx@...utronix.de
Subject: [tip:irq/core] genirq: Add IRQF_NO_THREAD

Commit-ID:  0c4602ff88d6d6ef0ee6d228ee9acaa6448ff6f5
Gitweb:     http://git.kernel.org/tip/0c4602ff88d6d6ef0ee6d228ee9acaa6448ff6f5
Author:     Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Wed, 23 Feb 2011 23:52:18 +0000
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Fri, 25 Feb 2011 20:24:22 +0100

genirq: Add IRQF_NO_THREAD

Some low level interrupts cannot be threaded even when we force thread
all interrupt handlers. Add a flag to annotate such interrupts. Add
all timer interrupts to this category by default.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: Peter Zijlstra <peterz@...radead.org>
LKML-Reference: <20110223234956.578893460@...utronix.de>
---
 include/linux/interrupt.h |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index e116fef..0fc3eb9 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -58,6 +58,7 @@
  *                irq line disabled until the threaded handler has been run.
  * IRQF_NO_SUSPEND - Do not disable this IRQ during suspend
  * IRQF_FORCE_RESUME - Force enable it on resume even if IRQF_NO_SUSPEND is set
+ * IRQF_NO_THREAD - Interrupt cannot be threaded
  */
 #define IRQF_DISABLED		0x00000020
 #define IRQF_SAMPLE_RANDOM	0x00000040
@@ -70,8 +71,9 @@
 #define IRQF_ONESHOT		0x00002000
 #define IRQF_NO_SUSPEND		0x00004000
 #define IRQF_FORCE_RESUME	0x00008000
+#define IRQF_NO_THREAD		0x00010000
 
-#define IRQF_TIMER		(__IRQF_TIMER | IRQF_NO_SUSPEND)
+#define IRQF_TIMER		(__IRQF_TIMER | IRQF_NO_SUSPEND | IRQF_NO_THREAD)
 
 /*
  * These values can be returned by request_any_context_irq() and
--
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