From 4d93874b9e9ce582fd4401334c88eaf93b6dff43 Mon Sep 17 00:00:00 2001 From: Chaitanya Kulkarni Date: Sun, 7 Feb 2021 11:04:22 -0800 Subject: [PATCH] ext4: use memcpy_from_page() in pagecache_read() Signed-off-by: Chaitanya Kulkarni Link: https://lore.kernel.org/r/20210207190425.38107-6-chaitanya.kulkarni@wdc.com Signed-off-by: Theodore Ts'o --- 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 00e3cbd..daf8866 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); -- 2.7.4