ext4: Define s_jnl_backup_type in superblock

This has been in use by e2fsprogs for a while; define it to keep the
super block fields in sync.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 5d3d768d950342d7f1b45036ee396670cbd30007..4c7d4727d6baccd7a3845046a5f4c6ea71ca0254 100644 (file)
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -984,7 +984,7 @@ struct ext4_super_block {
        __le32  s_last_orphan;          /* start of list of inodes to delete */
        __le32  s_hash_seed[4];         /* HTREE hash seed */
        __u8    s_def_hash_version;     /* Default hash version to use */
-       __u8    s_reserved_char_pad;
+       __u8    s_jnl_backup_type;
        __le16  s_desc_size;            /* size of group descriptor */
 /*100*/        __le32  s_default_mount_opts;
        __le32  s_first_meta_bg;        /* First metablock block group */
@@ -1002,7 +1002,7 @@ struct ext4_super_block {
        __le64  s_mmp_block;            /* Block for multi-mount protection */
        __le32  s_raid_stripe_width;    /* blocks on all data disks (N*stride)*/
        __u8    s_log_groups_per_flex;  /* FLEX_BG group size */
-       __u8    s_reserved_char_pad2;
+       __u8    s_reserved_char_pad;
        __le16  s_reserved_pad;
        __le64  s_kbytes_written;       /* nr of lifetime kilobytes written */
        __le32  s_snapshot_inum;        /* Inode number of active snapshot */