On Wed, Dec 28, 2011 at 10:20 AM, loody <miloody@xxxxxxxxx> wrote: > Dear all: > i remember there is a marco for us to determine whether we are located > in irq context. > I forget what it is. > Would anyone know what it is? > > > -- > Thanks for your help Hi, This is copy/paste from <linux/hardirq.h>: /* * Are we doing bottom half or hardware interrupt processing? * Are we in a softirq context? Interrupt context? * in_softirq - Are we currently processing softirq or have bh disabled? * in_serving_softirq - Are we currently processing softirq? */ #define in_irq() (hardirq_count()) #define in_softirq() (softirq_count()) #define in_interrupt() (irq_count()) #define in_serving_softirq() (softirq_count() & SOFTIRQ_OFFSET) Regards, Bojan _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
