libext2fs: ext2fs_[set_]file_acl_block needs to check for 64-bit feature flag

The ext2fs_file_acl_block() and ext2fs_set_file_acl_block() needs to
only check i_file_acl_high if the 64-bit flag is set.  This is needed
because otherwise we will run into problems on Hurd systems which
actually use that field for h_i_mode_high.

This involves an ABI change since we need to pass ext2_filsys to these
functions.  Fortunately these functions were first included in the
1.42-WIP series, so it's OK for us to change them now.  (This is why
we have 1.42-WIP releases.  :-)

Addresses-Sourceforge-Bug: #3379227

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/lib/ext2fs/valid_blk.c b/lib/ext2fs/valid_blk.c
index 9047f41..895e36e 100644
--- a/lib/ext2fs/valid_blk.c
+++ b/lib/ext2fs/valid_blk.c
@@ -24,7 +24,7 @@
  * This function returns 1 if the inode's block entries actually
  * contain block entries.
  */
-int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode)
+int ext2fs_inode_has_valid_blocks2(ext2_filsys fs, struct ext2_inode *inode)
 {
 	/*
 	 * Only directories, regular files, and some symbolic links
@@ -39,7 +39,7 @@
 	 * target is stored in the block entries.
 	 */
 	if (LINUX_S_ISLNK (inode->i_mode)) {
-		if (ext2fs_file_acl_block(inode) == 0) {
+		if (ext2fs_file_acl_block(fs, inode) == 0) {
 			/* With no EA block, we can rely on i_blocks */
 			if (inode->i_blocks == 0)
 				return 0;
@@ -54,3 +54,8 @@
 	}
 	return 1;
 }
+
+int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode)
+{
+	return ext2fs_inode_has_valid_blocks2(NULL, inode);
+}