get rid of pointless iov_length() in ->direct_IO()

[firefly-linux-kernel-4.4.55.git] / fs / hfs / inode.c

diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 09cff13528c5261e1d0a89a8b97b4c93443fa0a7..dc69e8f315818bd6e05a40200240637399391c27 100644 (file)
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -130,6 +130,7 @@ static ssize_t hfs_direct_IO(int rw, struct kiocb *iocb,
        struct file *file = iocb->ki_filp;
        struct address_space *mapping = file->f_mapping;
        struct inode *inode = file_inode(file)->i_mapping->host;
+       size_t count = iov_iter_count(iter);
        ssize_t ret;
 
        ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset,
@@ -141,7 +142,7 @@ static ssize_t hfs_direct_IO(int rw, struct kiocb *iocb,
         */
        if (unlikely((rw & WRITE) && ret < 0)) {
                loff_t isize = i_size_read(inode);
-               loff_t end = offset + iov_length(iter->iov, iter->nr_segs);
+               loff_t end = offset + count;
 
                if (end > isize)
                        hfs_write_failed(mapping, end);