Subject: [PATCH RFC PKS/PMEM 50/58] drivers/android: Utilize new kmap_thread()

From: [email-masked]
Date: Fri, 9 Oct 2020 12:50:25 -0700

From: Ira Weiny <[email-masked]>

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 <[email-masked]>
Signed-off-by: Ira Weiny <[email-masked]>
---
 drivers/android/binder_alloc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 69609696a843..5f50856caad7 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -1118,9 +1118,9 @@ binder_alloc_copy_user_to_buffer(struct binder_alloc *alloc,
 		page = binder_alloc_get_page(alloc, buffer,
 					     buffer_offset, &pgoff);
 		size = min_t(size_t, bytes, PAGE_SIZE - pgoff);
-		kptr = kmap(page) + pgoff;
+		kptr = kmap_thread(page) + pgoff;
 		ret = copy_from_user(kptr, from, size);
-		kunmap(page);
+		kunmap_thread(page);
 		if (ret)
 			return bytes - size + ret;
 		bytes -= size;
-- 
2.28.0.rc0.12.gb6a658bd00c9