Thread (19 messages) 19 messages, 4 authors, 2021-03-25
STALE1946d

[RFC PATCH 7/8] f2fs: use memcpy_from_page() in pagecache_read()

From: Chaitanya Kulkarni <hidden>
Date: 2021-02-07 19:07:27
Also in: linux-block, linux-f2fs-devel, linux-fsdevel
Subsystem: f2fs file system, filesystems (vfs and infrastructure), the rest · Maintainers: Jaegeuk Kim, Chao Yu, Alexander Viro, Christian Brauner, Linus Torvalds

Signed-off-by: Chaitanya Kulkarni <redacted>
---
 fs/f2fs/verity.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/fs/f2fs/verity.c b/fs/f2fs/verity.c
index 054ec852b5ea..44e057bdc416 100644
--- a/fs/f2fs/verity.c
+++ b/fs/f2fs/verity.c
@@ -47,16 +47,13 @@ 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);
 
-- 
2.22.1
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