[PATCH mptcp-net v4 0/5] mptcp: fix stall because of data_ready

[Gang Yan <gang.yan@linux.dev>]

From: Gang Yan <yangang@kylinos.cn>

Changelog:
  v4:
    - Pass 'delta' to 'move_skbs_to_msk' to fix the potential problems,
      and add a helper named 'move_skbs_from_backlog' to achieve this.
    - Add a test case in mptcp_join.sh which can reproduce such stall
      prolems.
    - Fix a dead_lock problems which is imported in the 1d77124a6322
      ('mptcp: fix the stall problems with data_ready.').
  v3:
    - Replace backlog list with backlog_queue(rb-tree) to solve the
      stall problems.
    Link: https://patchwork.kernel.org/project/mptcp/cover/cover.1773735950.git.yangang@kylinos.cn/
  v2:
    Link: https://patchwork.kernel.org/project/mptcp/patch/20260209084717.506379-1-gang.yan@linux.dev/
  v1:
    Link: https://patchwork.kernel.org/project/mptcp/cover/cover.1770273341.git.yangang@kylinos.cn/

Gang Yan (5):
  mptcp: replace backlog_list with backlog_queue
  mptcp: fix the stall problems using backlog_queue
  mptcp: fix the stall problems with data_ready
  mptcp: fix the dead_loack in mptcp_data_ready
  selftests: mptcp: test transmission with small rcvbuf

 net/mptcp/protocol.c                          | 112 +++++++++++++++---
 net/mptcp/protocol.h                          |   2 +-
 .../testing/selftests/net/mptcp/mptcp_join.sh |  20 ++++
 3 files changed, 117 insertions(+), 17 deletions(-)

-- 
2.43.0