Jason Wang f5a4941aa6 vhost_net: flush batched heads before trying to busy polling ... After commit e2b3b35eb9 ("vhost_net: batch used ring update in rx"), we tend to batch updating used heads. But it doesn't flush batched heads before trying to do busy polling, this will cause vhost to wait for guest TX which waits for the used RX. Fixing by flush batched heads before busy loop. 1 byte TCP_RR performance recovers from 13107.83 to 50402.65. Fixes: e2b3b35eb9 ("vhost_net: batch used ring update in rx") Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-05-30 13:29:03 -04:00
..
Kconfig	tap: tap as an independent module	2017-02-11 20:59:41 -05:00
Kconfig.vringh	vhost: split out vringh Kconfig	2016-08-02 16:54:28 +03:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
net.c	vhost_net: flush batched heads before trying to busy polling	2018-05-30 13:29:03 -04:00
scsi.c	vhost: remove unused lock check flag in vhost_dev_cleanup()	2018-02-01 16:26:44 +02:00
test.c	vhost: remove unused lock check flag in vhost_dev_cleanup()	2018-02-01 16:26:44 +02:00
test.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
vhost.c	vhost: synchronize IOTLB message with dev cleanup	2018-05-24 22:09:51 -04:00
vhost.h	vhost: return bool from *_access_ok() functions	2018-04-11 10:54:06 -04:00
vringh.c	vringh: kill off ACCESS_ONCE()	2016-12-16 00:13:36 +02:00
vsock.c	fw_cfg, vhost: features fixes	2018-04-06 19:21:41 -07:00