From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Jason Gunthorpe <jgg@nvidia.com>
Cc: Bartosz Golaszewski <brgl@kernel.org>,
Johan Hovold <johan@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Danilo Krummrich <dakr@kernel.org>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Tzung-Bi Shih <tzungbi@kernel.org>,
Linus Walleij <linusw@kernel.org>,
Jonathan Corbet <corbet@lwn.net>, Shuah Khan <shuah@kernel.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Simona Vetter <simona.vetter@ffwll.ch>,
Dan Williams <dan.j.williams@intel.com>,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Subject: Re: [PATCH 0/3] Revert "revocable: Revocable resource management"
Date: Wed, 28 Jan 2026 17:58:49 +0100 [thread overview]
Message-ID: <aXpAScyRUuI3bH13@shikoro> (raw)
In-Reply-To: <20260128150538.GA1134360@nvidia.com>
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> I would just gently advise again that SRCU is not a pancea and should
> only be used if the read side sections are super performance
> critical. I'm not sure that describes I2C. rwsem is often a simpler
> and better choice.
You might be totally right. But in any case, we need to prepare the
subsystem first. That is where I am now. Next steps come after that.
> > [1] https://lkml.org/lkml/2021/1/20/999
>
> Yeah, this was brought up a couple drafts of possible options were
> exchanged already but nothing was really focused on and polished.
>
> It is a tricky problem to find a storage location for the lock and
> revoke so that the fops shim can access it while not disturbing the
> actual driver.
I can imagine. Thanks for the heads up, nice to see it was not
forgotten!
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next prev parent reply other threads:[~2026-01-28 16:59 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-24 17:05 [PATCH 0/3] Revert "revocable: Revocable resource management" Johan Hovold
2026-01-24 17:05 ` [PATCH 1/3] Revert "selftests: revocable: Add kselftest cases" Johan Hovold
2026-01-24 17:05 ` [PATCH 2/3] Revert "revocable: Add Kunit test cases" Johan Hovold
2026-01-24 17:05 ` [PATCH 3/3] Revert "revocable: Revocable resource management" Johan Hovold
2026-01-24 17:37 ` Johan Hovold
2026-01-24 17:46 ` Danilo Krummrich
2026-01-26 13:20 ` Johan Hovold
2026-01-27 15:57 ` Tzung-Bi Shih
2026-01-24 18:42 ` [PATCH 0/3] " Laurent Pinchart
2026-01-24 19:08 ` Danilo Krummrich
2026-01-25 12:47 ` Greg Kroah-Hartman
2026-01-25 13:22 ` Laurent Pinchart
2026-01-25 14:07 ` Danilo Krummrich
2026-01-29 1:09 ` Laurent Pinchart
2026-01-25 13:24 ` Laurent Pinchart
2026-01-25 17:53 ` Danilo Krummrich
2026-01-26 0:07 ` Jason Gunthorpe
2026-01-26 16:08 ` Danilo Krummrich
2026-01-26 17:07 ` Jason Gunthorpe
2026-01-26 22:36 ` Danilo Krummrich
2026-01-28 23:40 ` Laurent Pinchart
2026-01-26 13:50 ` Johan Hovold
2026-01-27 21:18 ` Bartosz Golaszewski
2026-01-27 23:52 ` Jason Gunthorpe
2026-01-28 9:40 ` Bartosz Golaszewski
2026-01-28 10:01 ` Wolfram Sang
2026-01-28 15:05 ` Jason Gunthorpe
2026-01-28 15:20 ` Bartosz Golaszewski
2026-01-28 16:01 ` Jason Gunthorpe
2026-01-30 11:27 ` Bartosz Golaszewski
2026-01-28 16:58 ` Wolfram Sang [this message]
2026-01-29 1:08 ` Laurent Pinchart
2026-01-29 1:23 ` Jason Gunthorpe
2026-01-29 3:42 ` dan.j.williams
2026-01-29 9:56 ` Danilo Krummrich
2026-01-29 10:43 ` Laurent Pinchart
2026-01-30 0:36 ` dan.j.williams
2026-01-29 10:38 ` Laurent Pinchart
2026-01-29 13:34 ` Jason Gunthorpe
2026-01-29 14:52 ` Laurent Pinchart
2026-01-29 22:29 ` Danilo Krummrich
2026-01-30 9:10 ` Laurent Pinchart
2026-02-03 9:10 ` Maxime Ripard
2026-02-03 13:59 ` Laurent Pinchart
2026-01-28 15:48 ` Johan Hovold
2026-01-29 9:11 ` Bartosz Golaszewski
2026-01-29 10:56 ` Laurent Pinchart
2026-01-29 13:50 ` Bartosz Golaszewski
2026-01-29 14:28 ` Jason Gunthorpe
2026-01-29 14:45 ` Laurent Pinchart
2026-01-29 14:49 ` Laurent Pinchart
2026-01-29 22:00 ` Danilo Krummrich
2026-01-30 11:19 ` Bartosz Golaszewski
2026-01-29 13:27 ` Linus Walleij
2026-02-03 12:15 ` Johan Hovold
2026-02-03 12:26 ` Greg Kroah-Hartman
2026-02-03 12:30 ` [PATCH] driver core: disable revocable code from build Greg Kroah-Hartman
2026-02-03 13:20 ` Danilo Krummrich
2026-02-04 2:14 ` Tzung-Bi Shih
2026-02-04 5:28 ` [PATCH] selftests: Disable " Tzung-Bi Shih
2026-02-04 8:21 ` Greg Kroah-Hartman
2026-02-03 13:57 ` [PATCH 0/3] Revert "revocable: Revocable resource management" Laurent Pinchart
2026-02-03 15:44 ` Greg Kroah-Hartman
2026-02-04 14:36 ` Johan Hovold
2026-01-27 15:57 ` Tzung-Bi Shih
2026-01-28 14:23 ` Johan Hovold
2026-01-28 23:28 ` Laurent Pinchart
2026-01-29 15:01 ` Tzung-Bi Shih
2026-01-30 9:12 ` Laurent Pinchart
2026-01-30 17:41 ` Danilo Krummrich
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