From: sashiko-bot@kernel.org
To: "Allison Henderson" <achender@kernel.org>
Cc: linux-rdma@vger.kernel.org
Subject: Re: [PATCH net-next v7 04/12] net/rds: make rds_destroy_pending() report a connection's own destroy
Date: Mon, 28 Sep 2026 06:15:00 +0000 [thread overview]
Message-ID: <20260928061500.7F6C41F00893@smtp.kernel.org> (raw)
In-Reply-To: <20260927061448.167862-5-achender@kernel.org>
> rds_conn_destroy() cancels the path works and then destroys the
> per-path workqueue. However, nothing currently stops the
> work-requeueing sites from queueing new work on the connection while
> that happens. The existing code would suggest that this protection
> is supposed to come from rds_destroy_pending(), since all of those
> sites - apart from the workers' own self-requeues, which the sync
> cancel in the destroy path already rejects, and the destroy == true
> rds_conn_path_drop() that the destroy itself, and IB device removal,
> issue and then flush - guard the queueing with
> rds_destroy_pending() under rcu_read_lock() (the last stragglers were
> converted by the previous patch), and rds_conn_destroy() already issues a
> synchronize_rcu() after unhashing the connection. But the predicate
> only tests for the two global teardown cases (netns destruction via
> check_net(), module unload via ->t_unloading). Because the conn
> itself lacks any indication that a destroy is in progress, the
> [ ... ]
>
> Fixes: c809195f5523 ("rds: clean up loopback rds_connections on netns deletion")
> Suggested-by: Sharath Srinivasan <sharath.srinivasan@oracle.com>
> Assisted-by: Claude-Code:claude-fable-5
> Signed-off-by: Allison Henderson <achender@kernel.org>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260927061448.167862-1-achender@kernel.org?part=4
next prev parent reply other threads:[~2026-09-28 6:15 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-27 6:14 [PATCH net-next v7 00/12] net/rds: make connection lifetime reference-counted Allison Henderson
2026-09-27 6:14 ` [PATCH net-next v7 01/12] net/rds: ib: don't enable interrupts in rds_ib_conn_free() Allison Henderson
2026-09-28 6:14 ` sashiko-bot
2026-09-27 6:14 ` [PATCH net-next v7 02/12] net/rds: undo conn_alloc() the same way on every __rds_conn_create() exit Allison Henderson
2026-09-28 6:15 ` sashiko-bot
2026-09-27 6:14 ` [PATCH net-next v7 03/12] net/rds: guard every work-requeueing site with rds_destroy_pending() Allison Henderson
2026-09-28 6:15 ` sashiko-bot
2026-10-01 6:16 ` netdev-bot+sashiko
2026-09-27 6:14 ` [PATCH net-next v7 04/12] net/rds: make rds_destroy_pending() report a connection's own destroy Allison Henderson
2026-09-28 6:15 ` sashiko-bot [this message]
2026-10-01 6:16 ` netdev-bot+sashiko
2026-09-27 6:14 ` [PATCH net-next v7 05/12] net/rds: split connection destroy into quiesce and kref-governed free Allison Henderson
2026-09-28 6:15 ` sashiko-bot
2026-10-01 6:16 ` netdev-bot+sashiko
2026-09-27 6:14 ` [PATCH net-next v7 06/12] net/rds: wait for connections to be freed on transport unload Allison Henderson
2026-09-28 6:15 ` sashiko-bot
2026-10-01 6:16 ` netdev-bot+sashiko
2026-09-27 6:14 ` [PATCH net-next v7 07/12] net/rds: unlink transport nodes before a possibly deferred connection free Allison Henderson
2026-09-28 6:15 ` sashiko-bot
2026-10-01 6:16 ` netdev-bot+sashiko
2026-09-27 6:14 ` [PATCH net-next v7 08/12] net/rds: hold a connection reference from struct rds_incoming Allison Henderson
2026-09-28 6:15 ` sashiko-bot
2026-10-01 6:16 ` netdev-bot+sashiko
2026-09-27 6:14 ` [PATCH net-next v7 09/12] net/rds: take cp_lock to purge cp_send_queue in the quiesce Allison Henderson
2026-09-28 6:15 ` sashiko-bot
2026-10-01 6:16 ` netdev-bot+sashiko
2026-09-27 6:14 ` [PATCH net-next v7 10/12] net/rds: hold connection references in lookup, sockets and c_passive Allison Henderson
2026-09-28 6:15 ` sashiko-bot
2026-10-01 6:16 ` netdev-bot+sashiko
2026-09-27 6:14 ` [PATCH net-next v7 11/12] net/rds: pin the connection across RDMA-CM event handling Allison Henderson
2026-09-28 6:15 ` sashiko-bot
2026-10-01 6:16 ` netdev-bot+sashiko
2026-09-27 6:14 ` [PATCH net-next v7 12/12] net/rds: drop rds_conn_count in favor of t_conn_count Allison Henderson
2026-09-28 6:15 ` sashiko-bot
2026-10-01 6:16 ` netdev-bot+sashiko
2026-10-02 19:37 ` [PATCH net-next v7 00/12] net/rds: make connection lifetime reference-counted Jakub Kicinski
2026-10-02 21:26 ` Allison Henderson
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