Jason Wang e3b56cdd43 vhost: try avoiding avail index access when getting descriptor ... If last avail idx is not equal to cached avail idx, we're sure there's still available buffers in the virtqueue so there's no need to re-read avail idx. So let's skip this to avoid unnecessary userspace memory access and memory barrier. Pktgen test show about 3% improvement on rx pps. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		2017-02-27 20:37:27 +02:00
..
Kconfig	vhost: split out vringh Kconfig	2016-08-02 16:54:28 +03:00
Kconfig.vringh	vhost: split out vringh Kconfig	2016-08-02 16:54:28 +03:00
Makefile	VSOCK: Add Makefile and Kconfig	2016-08-02 02:57:30 +03:00
net.c	locking/core: Remove cpu_relax_lowlatency() users	2016-11-16 10:15:10 +01:00
scsi.c	vhost/scsi: silence uninitialized variable warning	2017-01-19 23:46:30 +02:00
test.c	Merge 4.8-rc5 into char-misc-next	2016-09-05 08:04:07 +02:00
test.h	vhost test module	2010-12-09 16:00:21 +02:00
vhost.c	vhost: try avoiding avail index access when getting descriptor	2017-02-27 20:37:27 +02:00
vhost.h	vhost: cache used event for better performance	2016-12-16 00:12:50 +02:00
vringh.c	vringh: kill off ACCESS_ONCE()	2016-12-16 00:13:36 +02:00
vsock.c	vhost/vsock: handle vhost_vq_init_access() error	2017-01-25 00:33:10 +02:00