On 6/21/24 21:31, Mina Almasry wrote:
On Mon, Jun 17, 2024 at 9:36 AM Pavel Begunkov wrote:
On 6/13/24 02:35, Mina Almasry wrote:
The pages awaiting freeing are stored in the newly added
sk->sk_user_frags, and each page passed to userspace is get_page()'d.
This reference is dropped once the
On Mon, Jun 17, 2024 at 9:36 AM Pavel Begunkov wrote:
>
> On 6/13/24 02:35, Mina Almasry wrote:
> >
> > The pages awaiting freeing are stored in the newly added
> > sk->sk_user_frags, and each page passed to userspace is get_page()'d.
> > This reference is dropped once the userspace indicates that
On 6/13/24 02:35, Mina Almasry wrote:
In tcp_recvmsg_locked(), detect if the skb being received by the user
is a devmem skb. In this case - if the user provided the MSG_SOCK_DEVMEM
flag - pass it to tcp_recvmsg_devmem() for custom handling.
tcp_recvmsg_devmem() copies any data in the skb header
In tcp_recvmsg_locked(), detect if the skb being received by the user
is a devmem skb. In this case - if the user provided the MSG_SOCK_DEVMEM
flag - pass it to tcp_recvmsg_devmem() for custom handling.
tcp_recvmsg_devmem() copies any data in the skb header to the linear
buffer, and returns a cmsg
