#define NILFS_SR_DAT_OFFSET(inode_size) NILFS_SR_MDT_OFFSET(inode_size, 0)
#define NILFS_SR_CPFILE_OFFSET(inode_size) NILFS_SR_MDT_OFFSET(inode_size, 1)
#define NILFS_SR_SUFILE_OFFSET(inode_size) NILFS_SR_MDT_OFFSET(inode_size, 2)
-#define NILFS_SR_BYTES (sizeof(struct nilfs_super_root))
+#define NILFS_SR_BYTES(inode_size) NILFS_SR_MDT_OFFSET(inode_size, 3)
/*
* Maximal mount counts
/* level */
#define NILFS_BTREE_LEVEL_DATA 0
#define NILFS_BTREE_LEVEL_NODE_MIN (NILFS_BTREE_LEVEL_DATA + 1)
-#define NILFS_BTREE_LEVEL_MAX 14
+#define NILFS_BTREE_LEVEL_MAX 14 /* Max level (exclusive) */
/**
* struct nilfs_palloc_group_desc - block group descriptor
_IOR(NILFS_IOCTL_IDENT, 0x8A, __u64)
#define NILFS_IOCTL_RESIZE \
_IOW(NILFS_IOCTL_IDENT, 0x8B, __u64)
+#define NILFS_IOCTL_SET_ALLOC_RANGE \
+ _IOW(NILFS_IOCTL_IDENT, 0x8C, __u64[2])
#endif /* _LINUX_NILFS_FS_H */