From: Venkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com>
Date: Mon, 14 Mar 2011 21:22:41 +0000 (-0700)
Subject: [net/9p] Don't re-pin pages on retrying virtqueue_add_buf().
X-Git-Tag: v3.12-rc1~6838^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=316ad5501c2098cb2a2a25ed77a0421f1671411c;p=kernel%2Fkernel-generic.git

[net/9p] Don't re-pin pages on retrying virtqueue_add_buf().

Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
---

diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index cb98af9..c6e1ae2 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -262,7 +262,6 @@ p9_virtio_request(struct p9_client *client, struct p9_req_t *req)
 
 	P9_DPRINTK(P9_DEBUG_TRANS, "9p debug: virtio request\n");
 
-req_retry:
 	req->status = REQ_STATUS_SENT;
 
 	if (req->tc->pbuf_size && (req->tc->pubuf && P9_IS_USER_CONTEXT)) {
@@ -295,6 +294,7 @@ req_retry:
 		}
 	}
 
+req_retry_pinned:
 	spin_lock_irqsave(&chan->lock, flags);
 
 	/* Handle out VirtIO ring buffers */
@@ -355,7 +355,7 @@ req_retry:
 				return err;
 
 			P9_DPRINTK(P9_DEBUG_TRANS, "9p:Retry virtio request\n");
-			goto req_retry;
+			goto req_retry_pinned;
 		} else {
 			spin_unlock_irqrestore(&chan->lock, flags);
 			P9_DPRINTK(P9_DEBUG_TRANS,