[PATCH 07/17] fs/cifs: Convert to memcpy_page()

[ira . weiny]

From: Ira Weiny <ira.weiny@xxxxxxxxx>

Use memcpy_page() instead of open coding kmap/memcpy/kunmap.

Cc: Steve French <sfrench@xxxxxxxxx>
Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx>
---
 fs/cifs/smb2ops.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 504766cb6c19..d1088ee9a0e6 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -4223,17 +4223,13 @@ smb3_init_transform_rq(struct TCP_Server_Info *server, int num_rqst,
 
 		/* copy pages form the old */
 		for (j = 0; j < npages; j++) {
-			char *dst, *src;
 			unsigned int offset, len;
 
 			rqst_page_get_length(&new_rq[i], j, &len, &offset);
 
-			dst = (char *) kmap(new_rq[i].rq_pages[j]) + offset;
-			src = (char *) kmap(old_rq[i - 1].rq_pages[j]) + offset;
-
-			memcpy(dst, src, len);
-			kunmap(new_rq[i].rq_pages[j]);
-			kunmap(old_rq[i - 1].rq_pages[j]);
+			memcpy_page(new_rq[i].rq_pages[j], offset,
+				    old_rq[i - 1].rq_pages[j], offset,
+				    len);
 		}
 	}
 
-- 
2.28.0.rc0.12.gb6a658bd00c9