FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2025-01-17 23:15:52 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

9p/trans_virtio: don't bother with p9_tag_lookup()

Browse Source 
Just store the pointer to req instead of that to req->tc as opaque
data.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2015-07-12 21:06:44 -04:00
parent 527e9316f8
commit 474fe9f7f5
1 changed files with 4 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
net/9p/trans_virtio.c
View File

@ -143,7 +143,6 @@ static void p9_virtio_close(struct p9_client *client)
static void req_done(struct virtqueue *vq)
{
struct virtio_chan *chan = vq->vdev->priv;
struct p9_fcall *rc;
unsigned int len;
struct p9_req_t *req;
unsigned long flags;
@ -152,8 +151,8 @@ static void req_done(struct virtqueue *vq)
while (1) {
spin_lock_irqsave(&chan->lock, flags);
rc = virtqueue_get_buf(chan->vq, &len);
if (rc == NULL) {
req = virtqueue_get_buf(chan->vq, &len);
if (req == NULL) {
spin_unlock_irqrestore(&chan->lock, flags);
break;
}
@ -161,9 +160,6 @@ static void req_done(struct virtqueue *vq)
spin_unlock_irqrestore(&chan->lock, flags);
/* Wakeup if anyone waiting for VirtIO ring space. */
wake_up(chan->vc_wq);
p9_debug(P9_DEBUG_TRANS, ": rc %p\n", rc);
p9_debug(P9_DEBUG_TRANS, ": lookup tag %d\n", rc->tag);
req = p9_tag_lookup(chan->client, rc->tag);
p9_client_cb(chan->client, req, REQ_STATUS_RCVD);
}
}
@ -284,7 +280,7 @@ req_retry:
if (in)
sgs[out_sgs + in_sgs++] = chan->sg + out;
err = virtqueue_add_sgs(chan->vq, sgs, out_sgs, in_sgs, req->tc,
err = virtqueue_add_sgs(chan->vq, sgs, out_sgs, in_sgs, req,
GFP_ATOMIC);
if (err < 0) {
if (err == -ENOSPC) {
@ -469,7 +465,7 @@ req_retry_pinned:
}
BUG_ON(out_sgs + in_sgs > ARRAY_SIZE(sgs));
err = virtqueue_add_sgs(chan->vq, sgs, out_sgs, in_sgs, req->tc,
err = virtqueue_add_sgs(chan->vq, sgs, out_sgs, in_sgs, req,
GFP_ATOMIC);
if (err < 0) {
if (err == -ENOSPC) {