[RFC PATCH 6/8] ext4: use memcpy_to_page() in pagecache_write()

Chaitanya Kulkarni
2021-02-07T19:07:07Z

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
fs/ext4/verity.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/fs/ext4/verity.c b/fs/ext4/verity.c
index c8e07f8a792d..cc4b046490b0 100644
--- a/fs/ext4/verity.c
+++ b/fs/ext4/verity.c
@@ -77,7 +77,6 @@ static int pagecache_write(struct inode *inode, const void *buf, size_t count,
PAGE_SIZE - offset_in_page(pos));
struct page *page;
void *fsdata;
- void *addr;
int res;

res = pagecache_write_begin(NULL, inode->i_mapping, pos, n, 0,
@@ -85,9 +84,7 @@ static int pagecache_write(struct inode *inode, const void *buf, size_t count,
if (res)
return res;

- addr = kmap_atomic(page);
- memcpy(addr + offset_in_page(pos), buf, n);
- kunmap_atomic(addr);
+ memcpy_to_page(page, offset_in_page(pos), buf, n);

res = pagecache_write_end(NULL, inode->i_mapping, pos, n, n,
page, fsdata);
--
2.22.1