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| author | Jason Wang <jasowang@redhat.com> | 2013-06-08 14:17:41 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-06-12 00:44:35 -0700 |
| commit | 19a6afb23e5d323e1245baa4e62755492b2f1200 (patch) | |
| tree | 72bb164119ff36690a2d2d34449e00ff81def5ad /drivers/net/tun.c | |
| parent | 7cdbac71f911494aa7d0343be23c092ca84a5ed4 (diff) | |
| download | kernel-common-19a6afb23e5d323e1245baa4e62755492b2f1200.tar.gz kernel-common-19a6afb23e5d323e1245baa4e62755492b2f1200.tar.bz2 kernel-common-19a6afb23e5d323e1245baa4e62755492b2f1200.zip | |
tuntap: set SOCK_ZEROCOPY flag during open
Commit 54f968d6efdbf7dec36faa44fc11f01b0e4d1990
(tuntap: move socket to tun_file) forgets to set SOCK_ZEROCOPY flag, which will
prevent vhost_net from doing zercopy w/ tap. This patch fixes this by setting
it during file open.
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index b1cbfbcff789..bfa9bb48e42d 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -2159,6 +2159,8 @@ static int tun_chr_open(struct inode *inode, struct file * file) set_bit(SOCK_EXTERNALLY_ALLOCATED, &tfile->socket.flags); INIT_LIST_HEAD(&tfile->next); + sock_set_flag(&tfile->sk, SOCK_ZEROCOPY); + return 0; } |