diff mbox series

[RFC,PKS/PMEM,54/58] powerpc: Utilize new kmap_thread()

Message ID 20201009195033.3208459-55-ira.weiny@intel.com (mailing list archive)
State Not Applicable
Headers show
Series PMEM: Introduce stray write protection for PMEM | expand

Checks

Context Check Description
snowpatch_ozlabs/apply_patch warning Failed to apply on branch powerpc/merge (118be7377c97e35c33819bcb3bbbae5a42a4ac43)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch powerpc/next (a2d0230b91f7e23ceb5d8fb6a9799f30517ec33a)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch linus/master (6f2f486d57c4d562cdf4932320b66fbb878ab1c4)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch powerpc/fixes (0460534b532e5518c657c7d6492b9337d975eaa3)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch linux-next (d67bc7812221606e1886620a357b13f906814af7)
snowpatch_ozlabs/apply_patch fail Failed to apply to any branch

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: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
---
 arch/powerpc/mm/mem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 42e25874f5a8..6ef557b8dda6 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -573,9 +573,9 @@  void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
 {
 	unsigned long maddr;
 
-	maddr = (unsigned long) kmap(page) + (addr & ~PAGE_MASK);
+	maddr = (unsigned long) kmap_thread(page) + (addr & ~PAGE_MASK);
 	flush_icache_range(maddr, maddr + len);
-	kunmap(page);
+	kunmap_thread(page);
 }
 
 /*