fs: Give dentry to inode_change_ok() instead of inode

inode_change_ok() will be resposible for clearing capabilities and IMA
extended attributes and as such will need dentry. Give it as an argument
to inode_change_ok() instead of an inode. Also rename inode_change_ok()
to setattr_prepare() to better relect that it does also some
modifications in addition to checks.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/overlayfs/inode.c

@@ -52,7 +52,7 @@ int ovl_setattr(struct dentry *dentry, struct iattr *attr)
 	 * inode_newsize_ok() will always check against MAX_LFS_FILESIZE and not
 	 * check for a swapfile (which this won't be anyway).
 	 */
-	err = inode_change_ok(dentry->d_inode, attr);
+	err = setattr_prepare(dentry, attr);
 	if (err)
 		return err;