From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [PATCH 04/13] qemu-kvm: Remove eventfd compat header
Date: Sun, 3 Jul 2011 12:54:06 +0300
Message-ID: <20110703095406.GA14862@redhat.com>
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Cc: Jan Kiszka <jan.kiszka@web.de>, Avi Kivity <avi@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>, kvm@vger.kernel.org,
	Alex Williamson <alex.williamson@redhat.com>
To: Bernhard Held <bheld@mgpi.de>
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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
>