commit c046ac7f2e4c53e20cf1e909bbe511f91074b396
author Theodore Ts'o <tytso@mit.edu> Sun Oct 20 00:38:57 2002 -0400
committer Theodore Ts'o <tytso@mit.edu> Sun Oct 20 00:38:57 2002 -0400
tree 55d72ba75e48baece1661a122eeac3ea4f49ed2a
parent a0c3fd5e4cdc2e0b032c9ace89d960a622069c32

Add support for the meta_blockgroup filesystem format.

misc/mke2fs.c

diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index c37eecc..1c83d9f 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -780,7 +780,8 @@
 	EXT3_FEATURE_COMPAT_HAS_JOURNAL |
 		EXT2_FEATURE_COMPAT_DIR_INDEX,	/* Compat */
 	EXT2_FEATURE_INCOMPAT_FILETYPE|		/* Incompat */
-		EXT3_FEATURE_INCOMPAT_JOURNAL_DEV,
+		EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
+		EXT2_FEATURE_INCOMPAT_META_BG,
 	EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER	/* R/O compat */
 };
 
@@ -1164,6 +1165,12 @@
 	    !journal_size)
 		journal_size = -1;
 
+	/* Set first meta blockgroup via an environment variable */
+	/* (this is mostly for debugging purposes) */
+	if ((param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
+	    ((tmp = getenv("MKE2FS_FIRST_META_BG"))))
+		param.s_first_meta_bg = atoi(tmp);
+
 	set_fs_defaults(fs_type, &param, blocksize, &inode_ratio);
 
 	if (param.s_blocks_per_group) {