From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Jason Gunthorpe <jgg@nvidia.com>
Cc: linux-rdma@vger.kernel.org, Leon Romanovsky <leonro@nvidia.com>,
Petr Pavlu <petr.pavlu@suse.com>,
"Paul E. McKenney" <paulmck@kernel.org>
Subject: Re: [Q] RCU usage in infiniband
Date: Wed, 8 Jul 2026 15:34:10 +0200 [thread overview]
Message-ID: <20260708133410.VZR0-V_p@linutronix.de> (raw)
In-Reply-To: <20260708132849.GC674038@nvidia.com>
On 2026-07-08 10:28:49 [-0300], Jason Gunthorpe wrote:
> > Where? Within the module core or somewhere within infiniband?
>
> Eg the uverbs path has a srcu synchronize IIRC before allowing the FDs
> to close which holds the module as well. But it probably isn't wise to
> rely on this
But this is srcu. So this takes long enough so that we have a RCU grace
period, too? But there is also RCU_LAZY which could stretch this a bit
;)
> Jason
Sebastian
next prev parent reply other threads:[~2026-07-08 13:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-08 9:23 [Q] RCU usage in infiniband Sebastian Andrzej Siewior
2026-07-08 13:17 ` Jason Gunthorpe
2026-07-08 13:21 ` Sebastian Andrzej Siewior
2026-07-08 13:28 ` Jason Gunthorpe
2026-07-08 13:34 ` Sebastian Andrzej Siewior [this message]
2026-07-08 13:58 ` Paul E. McKenney
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