lkml.org 
[lkml]   [2020]   [Oct]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH RFC PKS/PMEM 43/58] drivers/mmc: Utilize new kmap_thread()
Date
From: Ira Weiny <ira.weiny@intel.com>

These kmap() calls are localized to a single thread. To avoid the over
head of global PKRS updates use the new kmap_thread() call.

Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Sascha Sommer <saschasommer@freenet.de>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
---
drivers/mmc/host/mmc_spi.c | 4 ++--
drivers/mmc/host/sdricoh_cs.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index 18a850f37ddc..ab28e7103b8d 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -918,7 +918,7 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd,
}

/* allow pio too; we don't allow highmem */
- kmap_addr = kmap(sg_page(sg));
+ kmap_addr = kmap_thread(sg_page(sg));
if (direction == DMA_TO_DEVICE)
t->tx_buf = kmap_addr + sg->offset;
else
@@ -950,7 +950,7 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd,
/* discard mappings */
if (direction == DMA_FROM_DEVICE)
flush_kernel_dcache_page(sg_page(sg));
- kunmap(sg_page(sg));
+ kunmap_thread(sg_page(sg));
if (dma_dev)
dma_unmap_page(dma_dev, dma_addr, PAGE_SIZE, dir);

diff --git a/drivers/mmc/host/sdricoh_cs.c b/drivers/mmc/host/sdricoh_cs.c
index 76a8cd3a186f..7806bc69c4f1 100644
--- a/drivers/mmc/host/sdricoh_cs.c
+++ b/drivers/mmc/host/sdricoh_cs.c
@@ -312,11 +312,11 @@ static void sdricoh_request(struct mmc_host *mmc, struct mmc_request *mrq)
int result;
page = sg_page(data->sg);

- buf = kmap(page) + data->sg->offset + (len * i);
+ buf = kmap_thread(page) + data->sg->offset + (len * i);
result =
sdricoh_blockio(host,
data->flags & MMC_DATA_READ, buf, len);
- kunmap(page);
+ kunmap_thread(page);
flush_dcache_page(page);
if (result) {
dev_err(dev, "sdricoh_request: cmd %i "
--
2.28.0.rc0.12.gb6a658bd00c9
\
 
 \ /
  Last update: 2020-10-09 21:59    [W:0.503 / U:3.684 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site