f2fs: switch to iov_iter_alignment()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 5 insertions, 6 deletions

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 151488f27755..1d2e7e9624d2 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -992,10 +992,9 @@ static int f2fs_write_end(struct file *file,
 }
 
 static int check_direct_IO(struct inode *inode, int rw,
-                const struct iovec *iov, loff_t offset, unsigned long nr_segs)
+                struct iov_iter *iter, loff_t offset)
 {
         unsigned blocksize_mask = inode->i_sb->s_blocksize - 1;
-        int i;
 
         if (rw == READ)
                 return 0;
@@ -1003,9 +1002,9 @@ static int check_direct_IO(struct inode *inode, int rw,
         if (offset & blocksize_mask)
                 return -EINVAL;
 
-        for (i = 0; i < nr_segs; i++)
-                if (iov[i].iov_len & blocksize_mask)
-                        return -EINVAL;
+        if (iov_iter_alignment(iter) & blocksize_mask)
+                return -EINVAL;
+
         return 0;
 }
 
@@ -1019,7 +1018,7 @@ static ssize_t f2fs_direct_IO(int rw, struct kiocb *iocb,
         if (f2fs_has_inline_data(inode))
                 return 0;
 
-        if (check_direct_IO(inode, rw, iter->iov, offset, iter->nr_segs))
+        if (check_direct_IO(inode, rw, iter, offset))
                 return 0;
 
         return blockdev_direct_IO(rw, iocb, inode, iter, offset,