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Subject[tip:irq/core] genirq: Add IRQF_NO_THREAD
Commit-ID:  0c4602ff88d6d6ef0ee6d228ee9acaa6448ff6f5
Gitweb: http://git.kernel.org/tip/0c4602ff88d6d6ef0ee6d228ee9acaa6448ff6f5
Author: Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Wed, 23 Feb 2011 23:52:18 +0000
Committer: Thomas Gleixner <tglx@linutronix.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@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20110223234956.578893460@linutronix.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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