search for: 4f4a842

...to <mjrosato at linux.vnet.ibm.com> Acked-by: Michael S. Tsirkin <mst at redhat.com> > --- > drivers/net/tun.c | 24 ++++++++++++++++++------ > 1 file changed, 18 insertions(+), 6 deletions(-) > > diff --git a/drivers/net/tun.c b/drivers/net/tun.c > index 9574900..4f4a842 100644 > --- a/drivers/net/tun.c > +++ b/drivers/net/tun.c > @@ -1952,8 +1952,11 @@ static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile, > > tun_debug(KERN_INFO, tun, "tun_do_read\n"); > > - if (!iov_iter_count(to)) > + if (!iov_iter_cou...

...ssed cases. Signed-off-by: Wei Xu <wexu at redhat.com> Reported-by: Matthew Rosato <mjrosato at linux.vnet.ibm.com> --- drivers/net/tun.c | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 9574900..4f4a842 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1952,8 +1952,11 @@ static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile, tun_debug(KERN_INFO, tun, "tun_do_read\n"); - if (!iov_iter_count(to)) + if (!iov_iter_count(to)) { + if (skb) + kfree_skb(skb)...

From: Wei Xu <wexu at redhat.com> Matthew found a roughly 40% tcp throughput regression with commit c67df11f(vhost_net: try batch dequing from skb array) as discussed in the following thread: https://www.mail-archive.com/netdev at vger.kernel.org/msg187936.html v4: - fix zero iov iterator count in tap/tap_do_read()(Jason) - don't put tun in case of EBADFD(Jason) - Replace

From: Wei Xu <wexu at redhat.com> Matthew found a roughly 40% tcp throughput regression with commit c67df11f(vhost_net: try batch dequing from skb array) as discussed in the following thread: https://www.mail-archive.com/netdev at vger.kernel.org/msg187936.html v4: - fix zero iov iterator count in tap/tap_do_read()(Jason) - don't put tun in case of EBADFD(Jason) - Replace