Add uninit block group support to various libext2fs functions
Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/lib/ext2fs/alloc_stats.c b/lib/ext2fs/alloc_stats.c
index 4088f7b..725f28d 100644
--- a/lib/ext2fs/alloc_stats.c
+++ b/lib/ext2fs/alloc_stats.c
@@ -27,6 +27,25 @@
fs->group_desc[group].bg_free_inodes_count -= inuse;
if (isdir)
fs->group_desc[group].bg_used_dirs_count += inuse;
+
+ /* We don't strictly need to be clearing these if inuse < 0
+ * (i.e. freeing inodes) but it also means something is bad. */
+ fs->group_desc[group].bg_flags &= ~(EXT2_BG_INODE_UNINIT |
+ EXT2_BG_BLOCK_UNINIT);
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
+ ext2_ino_t first_unused_inode = fs->super->s_inodes_per_group -
+ fs->group_desc[group].bg_itable_unused +
+ group * fs->super->s_inodes_per_group + 1;
+
+ if (ino >= first_unused_inode)
+ fs->group_desc[group].bg_itable_unused =
+ group * fs->super->s_inodes_per_group +
+ fs->super->s_inodes_per_group - ino;
+
+ ext2fs_group_desc_csum_set(fs, group);
+ }
+
fs->super->s_free_inodes_count -= inuse;
ext2fs_mark_super_dirty(fs);
ext2fs_mark_ib_dirty(fs);
@@ -46,6 +65,9 @@
else
ext2fs_unmark_block_bitmap(fs->block_map, blk);
fs->group_desc[group].bg_free_blocks_count -= inuse;
+ fs->group_desc[group].bg_flags &= ~EXT2_BG_BLOCK_UNINIT;
+ ext2fs_group_desc_csum_set(fs, group);
+
fs->super->s_free_blocks_count -= inuse;
ext2fs_mark_super_dirty(fs);
ext2fs_mark_bb_dirty(fs);