On Wed, Jun 29, 2011 at 03:02:46PM +0200, Alexander Graf wrote: > > On 28.06.2011, at 17:35, Michael S. Tsirkin wrote: > > > Support build on RHEL 5.X where we have syscall for eventfd but not > > userspace wrapper. > > > > (cherry-picked from commit 9e3269181e9bc56feb43bcd4e8ce0b82cd543e65 > > in qemu-kvm.git). > > > > Signed-off-by: Michael S. Tsirkin <m...@redhat.com> > > --- > > compat/sys/eventfd.h | 13 +++++++++++++ > > configure | 4 +++ > > 2 files changed, 16 insertions(+), 0 deletions(-) > > create mode 100644 compat/sys/eventfd.h > > > > diff --git a/compat/sys/eventfd.h b/compat/sys/eventfd.h > > new file mode 100644 > > index 0000000..f55d96a > > --- /dev/null > > +++ b/compat/sys/eventfd.h > > @@ -0,0 +1,13 @@ > > +#ifndef _COMPAT_SYS_EVENTFD > > +#define _COMPAT_SYS_EVENTFD > > + > > +#include <unistd.h> > > +#include <syscall.h> > > + > > + > > +static inline int eventfd (int count, int flags) > > coding style seems wrong.
What exactly? Two empty lines? > However, I'm not sure I like the idea of adding this code in qemu. Wouldn't > the RHEL5 libc be a better place for such a wrapper? > > > Alex My guess (I don't speak for red hat here) is that's unlikely to be patched anytime soon. It helps me when I need to use such a box, and the cost seems negligeable. What's the drawback? -- MST