diff mbox series

[RFC,5/8] ext4: use memcpy_from_page() in pagecache_read()

Message ID 20210207190425.38107-6-chaitanya.kulkarni@wdc.com (mailing list archive)
State New, archived
Headers show
Series use core page calls instead of kmaps | expand

Commit Message

Chaitanya Kulkarni Feb. 7, 2021, 7:04 p.m. UTC 
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
 fs/ext4/verity.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/fs/ext4/verity.c b/fs/ext4/verity.c
index 5b7ba8f71153..c8e07f8a792d 100644
--- a/fs/ext4/verity.c
+++ b/fs/ext4/verity.c
@@ -45,16 +45,13 @@  static int pagecache_read(struct inode *inode, void *buf, size_t count,
 		size_t n = min_t(size_t, count,
 				 PAGE_SIZE - offset_in_page(pos));
 		struct page *page;
-		void *addr;
 
 		page = read_mapping_page(inode->i_mapping, pos >> PAGE_SHIFT,
 					 NULL);
 		if (IS_ERR(page))
 			return PTR_ERR(page);
 
-		addr = kmap_atomic(page);
-		memcpy(buf, addr + offset_in_page(pos), n);
-		kunmap_atomic(addr);
+		memcpy_from_page(buf, page, offset_in_page(pos), n);
 
 		put_page(page);