diff mbox series

[RFC,PKS/PMEM,43/58] drivers/mmc: Utilize new kmap_thread()

Message ID 20201009195033.3208459-44-ira.weiny@intel.com (mailing list archive)
State RFC
Headers show
Series PMEM: Introduce stray write protection for PMEM | expand

Commit Message

Ira Weiny Oct. 9, 2020, 7:50 p.m. UTC 
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 mbox series

Patch

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 "