Hi Linus,
Was going to delay this one for the potential batch next week, but turns
out it's more convenient for the networking side to get this into -rc2
as it'll conflict with a patch going into net-next also adding a socket
bit. Jakub has signed off on the net change.
Currently the zero-copy has automatic fallback to normal transmit, and
it was decided that it'd be cleaner to return an error instead if the
socket type doesn't support it. It does work with UDP and TCP, it's more
of a future proofing kind of thing (eg for samba).
Please pull!
The following changes since commit 996d3efeb091c503afd3ee6b5e20eabf446fd955:
io-wq: Fix memory leak in worker creation (2022-10-20 05:48:59 -0700)
are available in the Git repository at:
git://git.kernel.dk/linux.git tags/io_uring-6.1-2022-10-22
for you to fetch changes up to cc767e7c6913f770741d9fad1efa4957c2623744:
io_uring/net: fail zc sendmsg when unsupported by socket (2022-10-22 08:43:03 -0600)
----------------------------------------------------------------
io_uring-6.1-2022-10-22
----------------------------------------------------------------
Pavel Begunkov (3):
net: flag sockets supporting msghdr originated zerocopy
io_uring/net: fail zc send when unsupported by socket
io_uring/net: fail zc sendmsg when unsupported by socket
include/linux/net.h | 1 +
io_uring/net.c | 4 ++++
net/ipv4/tcp.c | 1 +
net/ipv4/udp.c | 1 +
4 files changed, 7 insertions(+)
--
Jens Axboe
