f2fs: support STATX_ATTR_VERITY

Set the STATX_ATTR_VERITY bit when the statx() system call is used on a
verity file on f2fs.
Signed-off-by: Eric Biggers <ebiggers@google.com>

fs/f2fs/file.c

@@ -726,11 +726,14 @@ int f2fs_getattr(const struct path *path, struct kstat *stat,
 		stat->attributes |= STATX_ATTR_IMMUTABLE;
 	if (flags & F2FS_NODUMP_FL)
 		stat->attributes |= STATX_ATTR_NODUMP;
+	if (IS_VERITY(inode))
+		stat->attributes |= STATX_ATTR_VERITY;
 
 	stat->attributes_mask |= (STATX_ATTR_APPEND |
 				  STATX_ATTR_ENCRYPTED |
 				  STATX_ATTR_IMMUTABLE |
-				  STATX_ATTR_NODUMP);
+				  STATX_ATTR_NODUMP |
+				  STATX_ATTR_VERITY);
 
 	generic_fillattr(inode, stat);