ext4: fix block bitmap initialization under sparse_super2

[linux-drm-fsl-dcu.git] / fs / ext4 / ext4.h

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index aeda5061a59a51bc44634d0f0722781f236e2500..4feb2d5819ae90bcb9f3e021973afc5b6f14efe1 100644 (file)
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1160,7 +1160,8 @@ struct ext4_super_block {
        __le32  s_usr_quota_inum;       /* inode for tracking user quota */
        __le32  s_grp_quota_inum;       /* inode for tracking group quota */
        __le32  s_overhead_clusters;    /* overhead blocks/clusters in fs */
-       __le32  s_reserved[108];        /* Padding to the end of the block */
+       __le32  s_backup_bgs[2];        /* groups with sparse_super2 SBs */
+       __le32  s_reserved[106];        /* Padding to the end of the block */
        __le32  s_checksum;             /* crc32c(superblock) */
 };
 
@@ -1506,6 +1507,7 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
 #define EXT4_FEATURE_COMPAT_EXT_ATTR           0x0008
 #define EXT4_FEATURE_COMPAT_RESIZE_INODE       0x0010
 #define EXT4_FEATURE_COMPAT_DIR_INDEX          0x0020
+#define EXT4_FEATURE_COMPAT_SPARSE_SUPER2      0x0200
 
 #define EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER    0x0001
 #define EXT4_FEATURE_RO_COMPAT_LARGE_FILE      0x0002