[GIT PULL] Enable IORING_CQE_F_SOCK_NONEMPTY for accept requests

[Jens Axboe <axboe@kernel.dk>]

Hi Linus,

This one was deferred, as it both depended on the net branch and the
io_uring changes for 6.10. Sending it now as both have landed.

This adds support for IORING_CQE_F_SOCK_NONEMPTY for io_uring accept
requests. This is very similar to previous work that enabled the same
hint for doing receives on sockets. By far the majority of the work here
is refactoring to enable the networking side to pass back whether or not
the socket had more pending requests after accepting the current one,
the last patch just wires it up for io_uring.

Not only does this enable applications to know whether there are more
connections to accept right now, it also enables smarter logic for
io_uring multishot accept on whether to retry immediately or wait for a
poll trigger.

Please pull!


The following changes since commit cddd2dc6390b90e62cec2768424d1d90f6d04161:

  Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue (2024-05-10 19:33:52 -0700)

are available in the Git repository at:

  git://git.kernel.dk/linux.git tags/net-accept-more-20240515

for you to fetch changes up to ac287da2e0ea5be2523222981efec86f0ca977cd:

  io_uring/net: wire up IORING_CQE_F_SOCK_NONEMPTY for accept (2024-05-13 18:19:23 -0600)

----------------------------------------------------------------
net-accept-more-20240515

----------------------------------------------------------------
Jens Axboe (6):
      Merge branch 'for-6.10/io_uring' into net-accept-more
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next into net-accept-more
      net: change proto and proto_ops accept type
      net: have do_accept() take a struct proto_accept_arg argument
      net: pass back whether socket was empty post accept
      io_uring/net: wire up IORING_CQE_F_SOCK_NONEMPTY for accept

 crypto/af_alg.c                    | 11 ++++++-----
 crypto/algif_hash.c                | 10 +++++-----
 drivers/xen/pvcalls-back.c         |  6 +++++-
 fs/ocfs2/cluster/tcp.c             |  5 ++++-
 include/crypto/if_alg.h            |  3 ++-
 include/linux/net.h                |  4 +++-
 include/linux/socket.h             |  3 ++-
 include/net/inet_common.h          |  4 ++--
 include/net/inet_connection_sock.h |  2 +-
 include/net/sock.h                 | 13 ++++++++++---
 io_uring/net.c                     | 26 ++++++++++++++++++++------
 net/atm/svc.c                      |  8 ++++----
 net/ax25/af_ax25.c                 |  6 +++---
 net/bluetooth/iso.c                |  4 ++--
 net/bluetooth/l2cap_sock.c         |  4 ++--
 net/bluetooth/rfcomm/sock.c        |  6 +++---
 net/bluetooth/sco.c                |  4 ++--
 net/core/sock.c                    |  4 ++--
 net/ipv4/af_inet.c                 | 10 +++++-----
 net/ipv4/inet_connection_sock.c    |  7 ++++---
 net/iucv/af_iucv.c                 |  4 ++--
 net/llc/af_llc.c                   |  7 +++----
 net/mptcp/protocol.c               | 11 +++++------
 net/netrom/af_netrom.c             |  6 +++---
 net/nfc/llcp_sock.c                |  4 ++--
 net/phonet/pep.c                   | 12 ++++++------
 net/phonet/socket.c                |  7 +++----
 net/rds/tcp_listen.c               |  6 +++++-
 net/rose/af_rose.c                 |  6 +++---
 net/sctp/socket.c                  |  8 ++++----
 net/smc/af_smc.c                   |  6 +++---
 net/socket.c                       | 15 ++++++++++-----
 net/tipc/socket.c                  | 13 +++++--------
 net/unix/af_unix.c                 | 21 ++++++++++-----------
 net/vmw_vsock/af_vsock.c           |  6 +++---
 net/x25/af_x25.c                   |  4 ++--
 36 files changed, 156 insertions(+), 120 deletions(-)

-- 
Jens Axboe