ext4: sync up block group descriptor with e2fsprogs. (91b51a01) · Commits · 戴 / test

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:

Coly Li <coyli@suse.de> Cc: Andreas Dilger <adilger@clusterfs.com> Signed-off-by:

Mingming Cao <cmm@us.ibm.com>

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 */

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