On 26/12/14 13:00, Peter Maydell wrote:
On 26 December 2014 at 08:05, Tiejun Chen <tiejun.c...@intel.com> wrote:
We should avoid to set irqfd{} unconditionally.

Signed-off-by: Tiejun Chen <tiejun.c...@intel.com>

Is there a hot path that we use this on such that the difference
in code order matters at all?

thanks
-- PMM


IMHO the patch does not change anything even on hot-hot path.
the declaration 'struct kvm_irqfd irqfd = {};' will
result in memset inside.

Thus in order to achieve declared goal author should
declare
   struct kvm_irqfd irqfd;
and perform
   memset(&irqfd, 0, sizeof(irqfd));
later after the check.

Regards,
        Den

Reply via email to