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Commit 0c4602ff authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

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: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20110223234956.578893460@linutronix.de>
parent 9d591edd

include/linux/interrupt.h

+3 −1
Original line number Original line Diff line number Diff line
@@ -58,6 +58,7 @@ 
 *                irq line disabled until the threaded handler has been run.

 *                irq line disabled until the threaded handler has been run.

 * IRQF_NO_SUSPEND - Do not disable this IRQ during suspend

 * 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_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_DISABLED		0x00000020

#define IRQF_SAMPLE_RANDOM	0x00000040

#define IRQF_SAMPLE_RANDOM	0x00000040
@@ -70,8 +71,9 @@ 
#define IRQF_ONESHOT		0x00002000

#define IRQF_ONESHOT		0x00002000

#define IRQF_NO_SUSPEND		0x00004000

#define IRQF_NO_SUSPEND		0x00004000

#define IRQF_FORCE_RESUME	0x00008000

#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

 * These values can be returned by request_any_context_irq() and