[rds-devel] [PATCH net-next v2 0/2] net/rds: RDS-TCP bug fix collection, subset 1: Work queue scalability

Allison Henderson achender at kernel.org
Mon Nov 17 20:23:36 UTC 2025


From: Allison Henderson <allison.henderson at oracle.com>

Hi all,

This is subset 1 of the RDS-TCP bug fix collection series I posted last
week.  The greater series aims to correct multiple rds-tcp bugs that
can cause dropped or out of sequence messages.  The set was starting to
get a bit large, so I've broken it down into smaller sets to make
reviews more manageable.

In this subset, we focus on work queue scalability.  Messages queues
are refactored to operate in parallel across multiple connections,
which improves response times and avoids timeouts.

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:
rfc->v1
 - Fixed lkp warnings and white space cleanup
 - Split out the workqueue changes as a subset

v1->v2
 [PATCH 1/2] net/rds: Add per cp work queue
   - Checkpatch nits
 [PATCH 2/2] net/rds: Give each connection its own workqueue
   - Checkpatch nits
   - Updated commit message with workqueue overhead accounting

Allison Henderson (2):
  net/rds: Add per cp work queue
  net/rds: Give each connection its own workqueue

 net/rds/connection.c | 16 ++++++++++++++--
 net/rds/ib_recv.c    |  2 +-
 net/rds/ib_send.c    |  2 +-
 net/rds/rds.h        |  1 +
 net/rds/send.c       |  9 +++++----
 net/rds/tcp_recv.c   |  2 +-
 net/rds/tcp_send.c   |  2 +-
 net/rds/threads.c    | 16 ++++++++--------
 8 files changed, 32 insertions(+), 18 deletions(-)

-- 
2.43.0




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