From: Leon Romanovsky <leon@kernel.org>
To: Bob Pearson <rpearsonhpe@gmail.com>
Cc: jgg@nvidia.com, zyjzyj2000@gmail.com, linux-rdma@vger.kernel.org,
jhack@hpe.com
Subject: Re: [PATCH for-next 2/2] RDMA/rxe: Enable rcu locking of indexed objects
Date: Wed, 19 Jul 2023 10:49:04 +0300 [thread overview]
Message-ID: <20230719074904.GH8808@unreal> (raw)
In-Reply-To: <20230718175943.16734-3-rpearsonhpe@gmail.com>
On Tue, Jul 18, 2023 at 12:59:44PM -0500, Bob Pearson wrote:
> Make rcu_read locking of critical sections with the indexed
> verbs objects be protected from early freeing of those objects.
> The AH, QP, MR and MW objects are looked up from their indices
> contained in received packets or WQEs during I/O processing.
> Make these objects be freed using kfree_rcu to avoid races.
Sorry, how use of RCU avoid races?
Thanks
next prev parent reply other threads:[~2023-07-19 7:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-18 17:59 [PATCH for-next 0/2] Enable rcu locking of verbs objects Bob Pearson
2023-07-18 17:59 ` [PATCH for-next 1/2] RDMA/core: Support drivers use of rcu locking Bob Pearson
2023-08-09 19:10 ` Jason Gunthorpe
2023-07-18 17:59 ` [PATCH for-next 2/2] RDMA/rxe: Enable rcu locking of indexed objects Bob Pearson
2023-07-19 5:38 ` Zhu Yanjun
2023-07-19 14:34 ` Bob Pearson
2023-07-19 7:49 ` Leon Romanovsky [this message]
2023-07-19 16:43 ` Bob Pearson
2023-07-23 15:00 ` Leon Romanovsky
2023-08-09 19:17 ` Jason Gunthorpe
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