| Message ID | 20210420134641.57343-1-avri.altman@wdc.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Do not flush cache when it is disabled | expand |
Ulf - Would you consider picking this sires up now? I was hoping to close this bug. Thanks, Avri > -----Original Message----- > From: Avri Altman <avri.altman@wdc.com> > Sent: Tuesday, 20 April 2021 16:47 > To: Ulf Hansson <ulf.hansson@linaro.org>; linux-mmc@vger.kernel.org; Adrian > Hunter <adrian.hunter@intel.com> > Cc: linux-kernel@vger.kernel.org; Avri Altman <Avri.Altman@wdc.com> > Subject: [PATCH v4 0/2] Do not flush cache when it is disabled > > v3 -> v4 > - Attend Adrian's comments > - Add Acked-by tag > > v2 -> v3: > - rebase onto recent cache changes > > v1 -> v2: > - Attend Adrian's comments > > Cache is a temporary storage space in an eMMC device. Volatile by > nature, the cache should in typical case reduce the access time compared > to an access to the main nonvolatile storage. > > The cache function can be turned ON and OFF. Once OFF, the host is not > expected to issue a flush-cache command to the device. > > Avri Altman (2): > mmc: block: Issue flush only if allowed > mmc: block: Update ext_csd.cache_ctrl if it was written > > drivers/mmc/core/block.c | 21 +++++++++++++++++++++ > drivers/mmc/core/mmc.c | 2 +- > drivers/mmc/core/mmc_ops.h | 5 +++++ > 3 files changed, 27 insertions(+), 1 deletion(-) > > -- > 2.25.1