From: Chaitanya Kulkarni chaitanya.kulkarni@wdc.com
[ Upstream commit bd256fda92efe97b692dc72e246d35fa724d42d8 ]
Signed-off-by: Chaitanya Kulkarni chaitanya.kulkarni@wdc.com Link: https://lore.kernel.org/r/20210207190425.38107-7-chaitanya.kulkarni@wdc.com Signed-off-by: Theodore Ts'o tytso@mit.edu Stable-dep-of: 956510c0c743 ("fs: ext4: initialize fsdata in pagecache_write()") Signed-off-by: Sasha Levin sashal@kernel.org --- 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 35be8e7ec2a0..130070ec491b 100644 --- a/fs/ext4/verity.c +++ b/fs/ext4/verity.c @@ -80,7 +80,6 @@ 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, @@ -88,9 +87,7 @@ 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);