From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: From: ira.weiny@intel.com Subject: [PATCH RFC PKS/PMEM 43/58] drivers/mmc: Utilize new kmap_thread() Date: Fri, 9 Oct 2020 12:50:18 -0700 Message-Id: <20201009195033.3208459-44-ira.weiny@intel.com> In-Reply-To: <20201009195033.3208459-1-ira.weiny@intel.com> References: <20201009195033.3208459-1-ira.weiny@intel.com> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Andrew Morton , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Andy Lutomirski , Peter Zijlstra Cc: linux-aio@kvack.org, Ulf Hansson , linux-efi@vger.kernel.org, kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-mmc@vger.kernel.org, Dave Hansen , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, Sascha Sommer , linux-mtd@lists.infradead.org, linux-kselftest@vger.kernel.org, samba-technical@lists.samba.org, Ira Weiny , ceph-devel@vger.kernel.org, drbd-dev@lists.linbit.com, devel@driverdev.osuosl.org, linux-cifs@vger.kernel.org, linux-nilfs@vger.kernel.org, linux-scsi@vger.kernel.org, linux-nvdimm@lists.01.org, linux-rdma@vger.kernel.org, x86@kernel.org, amd-gfx@lists.freedesktop.org, linux-afs@lists.infradead.org, cluster-devel@redhat.com, linux-cachefs@redhat.com, intel-wired-lan@lists.osuosl.org, xen-devel@lists.xenproject.org, linux-ext4@vger.kernel.org, Fenghua Yu , linux-um@lists.infradead.org, intel-gfx@lists.freedesktop.org, ecryptfs@vger.kernel.org, linux-erofs@lists.ozlabs.org, reiserfs-devel@vger.kernel.org, linux-block@vger.kernel.org, linux-bcache@vger.kernel.org, Dan Williams , io-uring@vger.kernel.org, linux-nfs@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, netdev@vger.kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, target-devel@vger.kernel.org, linux-fsdevel@vger.kernel.org, bpf@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-btrfs@vger.kernel.org From: Ira Weiny 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 Cc: Sascha Sommer Signed-off-by: Ira Weiny --- 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 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec