Messages in this thread Patch in this message | | | Date | Wed, 23 Feb 2011 23:52:18 -0000 | From | Thomas Gleixner <> | Subject | [patch 3/5] genirq: Add IRQF_NO_THREAD |
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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> --- include/linux/interrupt.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6-tip/include/linux/interrupt.h =================================================================== --- linux-2.6-tip.orig/include/linux/interrupt.h +++ linux-2.6-tip/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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