From: Mike Christie <michael.christie@oracle.com>
To: martin.petersen@oracle.com, linux-scsi@vger.kernel.org,
target-devel@vger.kernel.org, mst@redhat.com,
jasowang@redhat.com, pbonzini@redhat.com, stefanha@redhat.com,
virtualization@lists.linux-foundation.org
Subject: [PATCH 11/16] vhost scsi: remove extra flushes
Date: Wed, 07 Oct 2020 20:54:56 +0000 [thread overview]
Message-ID: <1602104101-5592-12-git-send-email-michael.christie@oracle.com> (raw)
In-Reply-To: <1602104101-5592-1-git-send-email-michael.christie@oracle.com>
The vhost work flush function was flushing the entire work queue, so
there is no need for the double vhost_work_dev_flush calls in
vhost_scsi_flush.
And we do not need to call vhost_poll_flush for each poller because
that call also ends up flushing the same work queue thread the
vhost_work_dev_flush call flushed.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
---
drivers/vhost/scsi.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index f543fa0..b348e9c 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -1443,11 +1443,6 @@ static void vhost_scsi_handle_kick(struct vhost_work *work)
vhost_scsi_handle_vq(vs, vq);
}
-static void vhost_scsi_flush_vq(struct vhost_scsi *vs, int index)
-{
- vhost_poll_flush(&vs->vqs[index].vq.poll);
-}
-
/* Callers must hold dev mutex */
static void vhost_scsi_flush(struct vhost_scsi *vs)
{
@@ -1466,9 +1461,6 @@ static void vhost_scsi_flush(struct vhost_scsi *vs)
kref_put(&old_inflight[i]->kref, vhost_scsi_done_inflight);
/* Flush both the vhost poll and vhost work */
- for (i = 0; i < VHOST_SCSI_MAX_VQ; i++)
- vhost_scsi_flush_vq(vs, i);
- vhost_work_dev_flush(&vs->dev);
vhost_work_dev_flush(&vs->dev);
/* Wait for all reqs issued before the flush to be finished */
--
1.8.3.1
next prev parent reply other threads:[~2020-10-07 20:54 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-07 20:54 [PATCH 00/16 V2] vhost: fix scsi cmd handling and IOPs Mike Christie
2020-10-07 20:54 ` [PATCH 01/16] vhost scsi: add lun parser helper Mike Christie
2020-10-07 20:54 ` [PATCH 02/16] vhost: remove work arg from vhost_work_flush Mike Christie
2020-10-07 20:54 ` [PATCH 03/16] vhost net: use goto error handling in open Mike Christie
2020-10-07 20:54 ` [PATCH 04/16] vhost: prep vhost_dev_init users to handle failures Mike Christie
2020-10-08 0:58 ` kernel test robot
2020-10-09 11:41 ` Dan Carpenter
2020-10-23 15:56 ` Michael S. Tsirkin
2020-10-23 16:21 ` Mike Christie
2020-10-07 20:54 ` [PATCH 05/16] vhost: move vq iovec allocation to dev init time Mike Christie
2020-10-07 20:54 ` [PATCH 06/16] vhost: support delayed vq creation Mike Christie
2020-10-07 20:54 ` [PATCH 07/16] vhost scsi: support delayed IO " Mike Christie
2020-10-07 20:54 ` [PATCH 08/16] vhost scsi: alloc cmds per vq instead of session Mike Christie
2020-10-07 20:54 ` [PATCH 09/16] vhost scsi: fix cmd completion race Mike Christie
2020-10-07 20:54 ` [PATCH 10/16] vhost scsi: Add support for LUN resets Mike Christie
2020-10-07 20:54 ` Mike Christie [this message]
2020-10-07 20:54 ` [PATCH 12/16] vhost: support multiple worker threads Mike Christie
2020-10-08 17:56 ` Mike Christie
2020-10-08 20:26 ` Michael S. Tsirkin
2020-10-07 20:54 ` [PATCH 13/16] vhost poll: fix coding style Mike Christie
2020-10-07 20:54 ` [PATCH 14/16] vhost: poll support support multiple workers Mike Christie
2020-10-08 0:46 ` kernel test robot
2020-10-23 15:43 ` Michael S. Tsirkin
2020-10-07 20:55 ` [PATCH 15/16] vhost scsi: make completion per vq Mike Christie
2020-10-07 20:55 ` [PATCH 16/16] vhost scsi: multiple worker support Mike Christie
2020-10-23 15:46 ` [PATCH 00/16 V2] vhost: fix scsi cmd handling and IOPs Michael S. Tsirkin
2020-10-23 16:22 ` Mike Christie
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