> -----Original Message----- > From: David Miller [mailto:davem@xxxxxxxxxxxxx] > Sent: Monday, April 27, 2015 7:57 PM > To: KY Srinivasan > Cc: netdev@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; > devel@xxxxxxxxxxxxxxxxxxxxxx; olaf@xxxxxxxxx; apw@xxxxxxxxxxxxx; > jasowang@xxxxxxxxxx > Subject: Re: [PATCH net 1/1] hv_netvsc: Fix a bug in netvsc_start_xmit() > > From: "K. Y. Srinivasan" <kys@xxxxxxxxxxxxx> > Date: Mon, 27 Apr 2015 18:14:50 -0700 > > > Commit commit b08cc79155fc26d0d112b1470d1ece5034651a4b eliminated > memory > > allocation in the packet send path. This commit introduced a bug since it > > did not account for the case if the skb was cloned. Fix this bug by > > using the pre-reserved head room only if the skb is not cloned. > > > > Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx> > > We have generic infrastructure to do this, please try instead: > > err = skb_cow_head(skb, pkt_sz); > > this will take care of everything for you and you can get rid > of all of this dynamic memory allocation etc. in this code > path. Thanks David; I will resubmit this patch. Regards, K. Y _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
