diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/nilfs2_fs.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/nilfs2_fs.h b/include/linux/nilfs2_fs.h index ce520402e840..3fe02cf8b65a 100644 --- a/include/linux/nilfs2_fs.h +++ b/include/linux/nilfs2_fs.h | |||
@@ -151,6 +151,8 @@ struct nilfs_super_root { | |||
151 | #define NILFS_MOUNT_BARRIER 0x1000 /* Use block barriers */ | 151 | #define NILFS_MOUNT_BARRIER 0x1000 /* Use block barriers */ |
152 | #define NILFS_MOUNT_STRICT_ORDER 0x2000 /* Apply strict in-order | 152 | #define NILFS_MOUNT_STRICT_ORDER 0x2000 /* Apply strict in-order |
153 | semantics also for data */ | 153 | semantics also for data */ |
154 | #define NILFS_MOUNT_NORECOVERY 0x4000 /* Disable write access during | ||
155 | mount-time recovery */ | ||
154 | 156 | ||
155 | 157 | ||
156 | /** | 158 | /** |
@@ -403,6 +405,28 @@ struct nilfs_segment_summary { | |||
403 | #define NILFS_SS_GC 0x0010 /* segment written for cleaner operation */ | 405 | #define NILFS_SS_GC 0x0010 /* segment written for cleaner operation */ |
404 | 406 | ||
405 | /** | 407 | /** |
408 | * struct nilfs_btree_node - B-tree node | ||
409 | * @bn_flags: flags | ||
410 | * @bn_level: level | ||
411 | * @bn_nchildren: number of children | ||
412 | * @bn_pad: padding | ||
413 | */ | ||
414 | struct nilfs_btree_node { | ||
415 | __u8 bn_flags; | ||
416 | __u8 bn_level; | ||
417 | __le16 bn_nchildren; | ||
418 | __le32 bn_pad; | ||
419 | }; | ||
420 | |||
421 | /* flags */ | ||
422 | #define NILFS_BTREE_NODE_ROOT 0x01 | ||
423 | |||
424 | /* level */ | ||
425 | #define NILFS_BTREE_LEVEL_DATA 0 | ||
426 | #define NILFS_BTREE_LEVEL_NODE_MIN (NILFS_BTREE_LEVEL_DATA + 1) | ||
427 | #define NILFS_BTREE_LEVEL_MAX 14 | ||
428 | |||
429 | /** | ||
406 | * struct nilfs_palloc_group_desc - block group descriptor | 430 | * struct nilfs_palloc_group_desc - block group descriptor |
407 | * @pg_nfrees: number of free entries in block group | 431 | * @pg_nfrees: number of free entries in block group |
408 | */ | 432 | */ |