RDS: TCP: connection spamming fixes
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- v1 Latest2 patches 3 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | RDS: TCP: rds_tcp_accept_worker() must exit gracefully when terminating rds-tcpnet/ | +3 | 1 reply | |
| 2/2 | RDS: TCP: Avoid rds connection churn from rogue SYNsnet/ | +6 | 1 reply |
Reviews trailers per patch
All 2 patches have a Reviewed-by or Acked-by.
| Patch | Santosh Shilimkar |
|---|---|
| 1/2 | A-b |
| 2/2 | A-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH net 0/2] RDS: TCP: connection spamming fixes
We have been testing the RDS-TCP code with a connection spammer that sends incoming SYNs to the RDS listen port well after an rds-tcp connection has been established, and found a few race-windows that are fixed by this patch series.
Patch 1 avoids a null pointer deref when an incoming SYN shows up when a netns is being dismantled, or when the rds-tcp module is being unloaded.
Patch 2 addresses the case when a SYN is received after the connection arbitration algorithm has converged: the incoming SYN should not needlessly quiesce the transmit path, and it should not result in needless TCP connection resets due to re-execution of the connection arbitration logic.
Sowmini Varadhan (2):
RDS: TCP: rds_tcp_accept_worker() must exit gracefully when
terminating rds-tcp
RDS: TCP: Avoid rds connection churn from rogue SYNs
net/rds/tcp_listen.c | 13 +++++++++---- 1 files changed, 9 insertions(+), 4 deletions(-)