From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>,
Stefan Wahren <stefan.wahren@i2se.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Alex Dubov <oakad@yahoo.com>,
Thierry Reding <thierry.reding@gmail.com>,
linux-mmc@vger.kernel.org
Subject: Re: [PATCH 12/14] mmc: tmio_mmc_core: Replace kmap_atomic() with kmap_local_page()
Date: Mon, 31 Oct 2022 20:38:03 +0100 [thread overview]
Message-ID: <Y2AkG11Le2mHuOC/@shikoro> (raw)
In-Reply-To: <20221005101951.3165-13-adrian.hunter@intel.com>
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On Wed, Oct 05, 2022 at 01:19:49PM +0300, Adrian Hunter wrote:
> kmap_local_page() is equivalent to kmap_atomic() except that it does not
> disable page faults or preemption. Where possible kmap_local_page() is
> preferred to kmap_atomic() - refer kernel highmem documentation.
>
> In this case, there is no need to disable page faults or preemption, so
> replace kmap_atomic() with kmap_local_page(), and, correspondingly,
> kunmap_atomic() with kunmap_local().
>
> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Not disabling preemption sounds good!
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
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next prev parent reply other threads:[~2022-10-31 19:38 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-05 10:19 [PATCH 00/14] mmc: Replace kmap_atomic() with kmap_local_page() Adrian Hunter
2022-10-05 10:19 ` [PATCH 01/14] mmc: sdhci: Remove local_irq_{save,restore}() around k[un]map_atomic() Adrian Hunter
2022-10-05 10:19 ` [PATCH 02/14] mmc: sdhci: Remove local_irq_{save,restore}() around sg_miter_{next,stop}() Adrian Hunter
2022-10-05 10:19 ` [PATCH 03/14] mmc: sdhci: Replace kmap_atomic() with kmap_local_page() Adrian Hunter
2022-10-06 7:03 ` Avri Altman
2022-10-06 7:23 ` Adrian Hunter
2022-10-05 10:19 ` [PATCH 04/14] mmc: bcm2835: Remove local_irq_{save,restore}() around k[un]map_atomic() Adrian Hunter
2022-10-05 10:19 ` [PATCH 05/14] mmc: bcm2835: Remove local_irq_{save,restore}() around sg_miter_{next,stop}() Adrian Hunter
2022-10-05 10:19 ` [PATCH 06/14] mmc: bcm2835: Replace kmap_atomic() with kmap_local_page() Adrian Hunter
2022-10-05 10:19 ` [PATCH 07/14] mmc: mmc_test: Remove local_irq_{save,restore}() around sg_copy_{from,to}_buffer() Adrian Hunter
2022-10-05 10:19 ` [PATCH 08/14] mmc: tifm_sd: Remove local_irq_{save,restore}() around tifm_sd_transfer_data() Adrian Hunter
2022-10-05 10:19 ` [PATCH 09/14] mmc: tifm_sd: Remove local_irq_{save,restore}() around tifm_sd_bounce_block() Adrian Hunter
2022-10-05 10:19 ` [PATCH 10/14] mmc: tifm_sd: Replace kmap_atomic() with kmap_local_page() Adrian Hunter
2022-10-05 10:19 ` [PATCH 11/14] mmc: tmio_mmc_core: Remove local_irq_{save,restore}() around k[un]map_atomic() Adrian Hunter
2022-10-31 19:36 ` Wolfram Sang
2022-11-02 12:06 ` Wolfram Sang
2022-10-05 10:19 ` [PATCH 12/14] mmc: tmio_mmc_core: Replace kmap_atomic() with kmap_local_page() Adrian Hunter
2022-10-31 19:38 ` Wolfram Sang [this message]
2022-10-05 10:19 ` [PATCH 13/14] mmc: au1xmmc: " Adrian Hunter
2022-10-05 10:19 ` [PATCH 14/14] mmc: wbsd: " Adrian Hunter
2022-10-24 17:11 ` [PATCH 00/14] mmc: " Ulf Hansson
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