Re: [PATCH 04/13] qemu-kvm: Remove eventfd compat header

Michael S. Tsirkin
2011-07-03T09:53:47Z

On Sun, Jul 03, 2011 at 11:46:51AM +0200, Bernhard Held wrote:
> #ifndef _COMPAT_SYS_EVENTFD
> #define _COMPAT_SYS_EVENTFD
>
> #include <unistd.h>
> #include <syscall.h>
>
> /* Flags for signalfd. */
> enum
> {
> EFD_SEMAPHORE = 1,
> #define EFD_SEMAPHORE EFD_SEMAPHORE
> EFD_CLOEXEC = 02000000,
> #define EFD_CLOEXEC EFD_CLOEXEC
> EFD_NONBLOCK = 04000
> #define EFD_NONBLOCK EFD_NONBLOCK
> };
>
> #ifndef __NR_eventfd2
> #if defined(__x86_64__)
> #define __NR_eventfd2 290
> #elif defined(__i386__)
> #define __NR_eventfd2 328
> #else
> #error Cannot detect your architecture!
> #endif
> #endif

Can't we use SYS_eventfd2 instead?

> static inline int eventfd (int count, int flags)
> {
> return syscall(__NR_eventfd2, count, flags);
> }
>
> #endif
>