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authorPeter Zijlstra <peterz@infradead.org>2021-10-07 00:40:17 +0200
committerPeter Zijlstra <peterz@infradead.org>2021-10-07 00:40:17 +0200
commitb08cadbd3b8721db738d9a00ef3ce3ed667e6d9c (patch)
tree1b44ef760764ea19f82fd80088135d23ab565d2d /drivers/vhost/net.c
parentdb2b0c5d7b6f19b3c2cab08c531b65342eb5252b (diff)
parentfe255fe6ad97685e5a4be0d871f43288dbc10ad6 (diff)
Merge branch 'objtool/urgent'
Fixup conflicts. # Conflicts: # tools/objtool/check.c
Diffstat (limited to 'drivers/vhost/net.c')
-rw-r--r--drivers/vhost/net.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 3a249ee7e144..28ef323882fb 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -467,7 +467,7 @@ static void vhost_tx_batch(struct vhost_net *net,
.num = nvq->batched_xdp,
.ptr = nvq->xdp,
};
- int err;
+ int i, err;
if (nvq->batched_xdp == 0)
goto signal_used;
@@ -476,6 +476,15 @@ static void vhost_tx_batch(struct vhost_net *net,
err = sock->ops->sendmsg(sock, msghdr, 0);
if (unlikely(err < 0)) {
vq_err(&nvq->vq, "Fail to batch sending packets\n");
+
+ /* free pages owned by XDP; since this is an unlikely error path,
+ * keep it simple and avoid more complex bulk update for the
+ * used pages
+ */
+ for (i = 0; i < nvq->batched_xdp; ++i)
+ put_page(virt_to_head_page(nvq->xdp[i].data));
+ nvq->batched_xdp = 0;
+ nvq->done_idx = 0;
return;
}