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Commit 91b51a01 authored by Coly Li's avatar Coly Li Committed by Theodore Ts'o
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ext4: sync up block group descriptor with e2fsprogs. 



This patch extends bg_itable_unused of ext4 group descriptor
from 16bit into 32bit. In order to add bg_itable_unused_hi into
struct ext4_group_desc, some extra fields which are already introduced into
e2fsprogs are also added in for consistency.

Signed-off-by: default avatarColy Li <coyli@suse.de>
Cc: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: default avatarMingming Cao <cmm@us.ibm.com>
parent fe7fdc37

include/linux/ext4_fs.h

+5 −0
Original line number Diff line number Diff line
@@ -118,6 +118,11 @@ struct ext4_group_desc 
	__le32	bg_block_bitmap_hi;	/* Blocks bitmap block MSB */

	__le32	bg_inode_bitmap_hi;	/* Inodes bitmap block MSB */

	__le32	bg_inode_table_hi;	/* Inodes table block MSB */

	__le16	bg_free_blocks_count_hi;/* Free blocks count MSB */

	__le16	bg_free_inodes_count_hi;/* Free inodes count MSB */

	__le16	bg_used_dirs_count_hi;	/* Directories count MSB */

	__le16	bg_itable_unused_hi;	/* Unused inodes count MSB */

	__u32	bg_reserved2[3];

};



#define EXT4_BG_INODE_UNINIT	0x0001 /* Inode table/bitmap not in use */