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References: <20240102155949.73434-1-brgl@bgdev.pl> <20240102155949.73434-3-brgl@bgdev.pl>
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From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 2 Jan 2024 23:12:47 +0100
Message-ID: <CACRpkdZ6ZUp79OqtWKSR9teqRcrpX6DwmsDmRsh2yxFaX5mTZQ@mail.gmail.com>
Subject: Re: [PATCH v2 2/3] gpiolib: replace the GPIO device mutex with a
 read-write semaphore
To: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, 
	Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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On Tue, Jan 2, 2024 at 4:59=E2=80=AFPM Bartosz Golaszewski <brgl@bgdev.pl> =
wrote:

> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>
> There are only two spots where we modify (add to or remove objects from)
> the GPIO device list. Readers should be able to access it concurrently.
> Replace the mutex with a read-write semaphore and adjust the locking
> operations accordingly.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Looks correct to me.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij