[PATCH RFC PKS/PMEM 46/58] drives/staging: Utilize new kmap_thread()
From: ira.weiny@intel.com
Date: 2020-10-09 19:57:59
Also in:
amd-gfx, bpf, ceph-devel, dri-devel, intel-gfx, intel-wired-lan, io-uring, kexec, kvm, linux-bcache, linux-block, linux-btrfs, linux-cifs, linux-doc, linux-efi, linux-ext4, linux-f2fs-devel, linux-fsdevel, linux-kselftest, linux-mm, linux-mmc, linux-nfs, linux-rdma, linux-scsi, linux-um, linuxppc-dev, lkml, nvdimm, target-devel, xen-devel
Subsystem:
staging subsystem, the rest · Maintainers:
Greg Kroah-Hartman, Linus Torvalds
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ira Weiny <ira.weiny@intel.com> --- drivers/staging/rts5208/rtsx_transport.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/rts5208/rtsx_transport.c b/drivers/staging/rts5208/rtsx_transport.c
index 0027bcf638ad..f747cc23951b 100644
--- a/drivers/staging/rts5208/rtsx_transport.c
+++ b/drivers/staging/rts5208/rtsx_transport.c@@ -92,13 +92,13 @@ unsigned int rtsx_stor_access_xfer_buf(unsigned char *buffer, while (sglen > 0) { unsigned int plen = min(sglen, (unsigned int) PAGE_SIZE - poff); - unsigned char *ptr = kmap(page); + unsigned char *ptr = kmap_thread(page); if (dir == TO_XFER_BUF) memcpy(ptr + poff, buffer + cnt, plen); else memcpy(buffer + cnt, ptr + poff, plen); - kunmap(page); + kunmap_thread(page); /* Start at the beginning of the next page */ poff = 0;
--
2.28.0.rc0.12.gb6a658bd00c9