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| author | Rusty Russell <rusty@rustcorp.com.au> | 2009-09-23 22:26:31 -0600 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2009-09-23 22:26:31 +0930 |
| commit | 3c1b27d5043086a485f8526353ae9fe37bfa1065 (patch) | |
| tree | e3b6eda3c66bcd1fc3af6e7fa6e4e3af77459474 /net | |
| parent | f68d24082e22ccee3077d11aeb6dc5354f0ca7f1 (diff) | |
| download | op-kernel-dev-3c1b27d5043086a485f8526353ae9fe37bfa1065.zip op-kernel-dev-3c1b27d5043086a485f8526353ae9fe37bfa1065.tar.gz | |
virtio: make add_buf return capacity remaining
This API change means that virtio_net can tell how much capacity
remains for buffers. It's necessarily fuzzy, since
VIRTIO_RING_F_INDIRECT_DESC means we can fit any number of descriptors
in one, *if* we can kmalloc.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Dinesh Subhraveti <dineshs@us.ibm.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/9p/trans_virtio.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c index 9bf0b73..53c139d 100644 --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -200,7 +200,7 @@ p9_virtio_request(struct p9_client *client, struct p9_req_t *req) req->status = REQ_STATUS_SENT; - if (chan->vq->vq_ops->add_buf(chan->vq, chan->sg, out, in, req->tc)) { + if (chan->vq->vq_ops->add_buf(chan->vq, chan->sg, out, in, req->tc) < 0) { P9_DPRINTK(P9_DEBUG_TRANS, "9p debug: virtio rpc add_buf returned failure"); return -EIO; |
