[PATCH net-next v5 0/2] net/rds: RDS-TCP reconnect and fanout improvements

[Allison Henderson <achender@kernel.org>]

Hi all,

This is subset 4 of the larger RDS-TCP patch series I posted last
Oct.  The greater series aims to correct multiple rds-tcp issues that
can cause dropped or out of sequence messages.  I've broken it down into
smaller sets to make reviews more manageable.

In this set, we address some reconnect issues occurring during connection
teardowns, and also move connection fanout operations to a background
worker.

The entire set can be viewed in the rfc here:
https://lore.kernel.org/netdev/20251022191715.157755-1-achender@kernel.org/

Questions, comments, flames appreciated!

Thanks,
Allison

Change Log
v2:
   [PATCH net-next v2 1/4] net/rds: Refactor __rds_conn_create for
   blocking transport cleanup
      - NEW

   [PATCH net-next v2 2/4] net/rds: Delegate fan-out to a background
    worker
      - Added syzbot report link
v3:
  [PATCH net-next v3 1/4] net/rds: Fix NULL pointer dereference in
  rds_tcp_accept_one
    - NEW
    - Fixes syzbot bug
      https://syzkaller.appspot.com/bug?extid=96046021045ffe6d7709

  [PATCH net-next v3 2/4] net/rds: Refactor __rds_conn_create for
  blocking transport cleanup
    - Moved syzbot report link from "Delegate fan-out to a background
      worker" to this patch
    - this patch fixes syzbot bug flaged in next patch
      https://ci.syzbot.org/series/1a5ef180-c02c-401d-9df7-670b18570a55

   [PATCH net-next v3 3/4] net/rds: Delegate fan-out to a background
    worker
     - Moved syzbot report link to previous patch

   [PATCH net-next v3 4/4] net/rds: Use proper peer port number even
   when not connected
     - Fixed ai comment complaint

   [PATCH net-next v2 4/4] net/rds: rds_sendmsg should not discard
   payload_len
     - Removed
     - Deferred to net instead of net-next

v4:
  [PATCH net-next v4 2/4] net/rds: Refactor __rds_conn_create for
  blocking transport cleanup
    - Removed Reported-by: tag

  [PATCH net-next v4 3/4] net/rds: Delegate fan-out to a background
  worker
    - Expanded commit header to clarify ordered queue mechanics and
      cancel_work_sync() usage

v5:
  [PATCH net-next v4 1/4] net/rds: Fix NULL pointer dereference in
  rds_tcp_accept_one
   - Removed
   - Deferred to net instead of net-next

  [PATCH net v5 1/2] net/rds: Refactor __rds_conn_create for blocking
  transport cleanup
   - Clarified commit header and commets per ai review

  [PATCH net-next v4 4/4] net/rds: Use proper peer port number even
  when not connected
   - Removed
   - Superceeded by
        "net/rds: fix recursive lock in rds_tcp_conn_slots_available"

Allison Henderson (1):
  net/rds: Refactor __rds_conn_create for blocking transport cleanup

Gerd Rausch (1):
  net/rds: Delegate fan-out to a background worker

 net/rds/connection.c  | 32 ++++++++++++++-----------
 net/rds/tcp.c         |  3 +++
 net/rds/tcp.h         |  7 ++----
 net/rds/tcp_connect.c |  2 ++
 net/rds/tcp_listen.c  | 54 +++++++++++++++++++++++++++++++------------
 5 files changed, 64 insertions(+), 34 deletions(-)

-- 
2.43.0