Re: [RFC PATCH 15/35] subarch support for controlling interrupt delivery

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, May 09, 2006 at 07:49:42AM -0700, Martin J. Bligh wrote:
> >+#define __cli()							 \
> >+do {									\
> >+	struct vcpu_info *_vcpu;					\
> >+	preempt_disable();						\
> >+	_vcpu = &HYPERVISOR_shared_info->vcpu_info[__vcpu_id];		\
> >+	_vcpu->evtchn_upcall_mask = 1;					\
> >+	preempt_enable_no_resched();					\
> >+	barrier();							\
> >+} while (0)
> 
> Should be a real function

Yes, except it's not trivially done because if __cli was an inline
function, you need to have everything that is used in the declaration
defined when the function is declared as opposed to when the #define
gets used.  I'll give it another try, but it very quickly becomes
#include hell.

Anybody want to comment on the performance impact of making
local_irq_* non-inline functions?

    christian

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux