diff options
Diffstat (limited to 'fs/nilfs2/segment.h')
| -rw-r--r-- | fs/nilfs2/segment.h | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/fs/nilfs2/segment.h b/fs/nilfs2/segment.h index 3d3ab2f9864..cd8056e7cbe 100644 --- a/fs/nilfs2/segment.h +++ b/fs/nilfs2/segment.h @@ -29,8 +29,10 @@ #include <linux/nilfs2_fs.h> #include "sb.h" +struct nilfs_root; + /** - * struct nilfs_recovery_info - Recovery infomation + * struct nilfs_recovery_info - Recovery information * @ri_need_recovery: Recovery status * @ri_super_root: Block number of the last super root * @ri_ri_cno: Number of the last checkpoint @@ -71,7 +73,7 @@ struct nilfs_recovery_info { */ struct nilfs_cstage { int scnt; - unsigned flags; + unsigned flags; struct nilfs_inode_info *dirty_file_ptr; struct nilfs_inode_info *gc_inode_ptr; }; @@ -87,6 +89,7 @@ struct nilfs_segsum_pointer { * struct nilfs_sc_info - Segment constructor information * @sc_super: Back pointer to super_block struct * @sc_sbi: Back pointer to nilfs_sb_info struct + * @sc_root: root object of the current filesystem tree * @sc_nblk_inc: Block count of current generation * @sc_dirty_files: List of files to be written * @sc_gc_inodes: List of GC inodes having blocks to be written @@ -100,7 +103,6 @@ struct nilfs_segsum_pointer { * @sc_write_logs: List of segment buffers to hold logs under writing * @sc_segbuf_nblocks: Number of available blocks in segment buffers. * @sc_curseg: Current segment buffer - * @sc_super_root: Pointer to the super root buffer * @sc_stage: Collection stage * @sc_finfo_ptr: pointer to the current finfo struct in the segment summary * @sc_binfo_ptr: pointer to the current binfo struct in the segment summary @@ -108,6 +110,7 @@ struct nilfs_segsum_pointer { * @sc_datablk_cnt: Data block count of a file * @sc_nblk_this_inc: Number of blocks included in the current logical segment * @sc_seg_ctime: Creation time + * @sc_cno: checkpoint number of current log * @sc_flags: Internal flags * @sc_state_lock: spinlock for sc_state and so on * @sc_state: Segctord state flags @@ -116,6 +119,7 @@ struct nilfs_segsum_pointer { * @sc_wait_daemon: Daemon wait queue * @sc_wait_task: Start/end wait queue to control segctord task * @sc_seq_request: Request counter + * @sc_seq_accept: Accepted request count * @sc_seq_done: Completion counter * @sc_sync: Request of explicit sync operation * @sc_interval: Timeout value of background construction @@ -128,6 +132,7 @@ struct nilfs_segsum_pointer { struct nilfs_sc_info { struct super_block *sc_super; struct nilfs_sb_info *sc_sbi; + struct nilfs_root *sc_root; unsigned long sc_nblk_inc; @@ -147,7 +152,6 @@ struct nilfs_sc_info { struct list_head sc_write_logs; unsigned long sc_segbuf_nblocks; struct nilfs_segment_buffer *sc_curseg; - struct buffer_head *sc_super_root; struct nilfs_cstage sc_stage; @@ -157,7 +161,7 @@ struct nilfs_sc_info { unsigned long sc_datablk_cnt; unsigned long sc_nblk_this_inc; time_t sc_seg_ctime; - + __u64 sc_cno; unsigned long sc_flags; spinlock_t sc_state_lock; @@ -169,6 +173,7 @@ struct nilfs_sc_info { wait_queue_head_t sc_wait_task; __u32 sc_seq_request; + __u32 sc_seq_accepted; __u32 sc_seq_done; int sc_sync; @@ -177,7 +182,7 @@ struct nilfs_sc_info { unsigned long sc_lseg_stime; /* in 1/HZ seconds */ unsigned long sc_watermark; - struct timer_list *sc_timer; + struct timer_list sc_timer; struct task_struct *sc_task; }; @@ -217,10 +222,10 @@ enum { */ #define NILFS_SC_DEFAULT_WATERMARK 3600 +/* super.c */ +extern struct kmem_cache *nilfs_transaction_cachep; /* segment.c */ -extern int nilfs_init_transaction_cache(void); -extern void nilfs_destroy_transaction_cache(void); extern void nilfs_relax_pressure_in_lock(struct super_block *); extern int nilfs_construct_segment(struct super_block *); @@ -230,17 +235,18 @@ extern void nilfs_flush_segment(struct super_block *, ino_t); extern int nilfs_clean_segments(struct super_block *, struct nilfs_argv *, void **); -extern int nilfs_attach_segment_constructor(struct nilfs_sb_info *); +int nilfs_attach_segment_constructor(struct nilfs_sb_info *sbi, + struct nilfs_root *root); extern void nilfs_detach_segment_constructor(struct nilfs_sb_info *); /* recovery.c */ -extern int nilfs_read_super_root_block(struct super_block *, sector_t, +extern int nilfs_read_super_root_block(struct the_nilfs *, sector_t, struct buffer_head **, int); -extern int nilfs_search_super_root(struct the_nilfs *, struct nilfs_sb_info *, +extern int nilfs_search_super_root(struct the_nilfs *, struct nilfs_recovery_info *); -extern int nilfs_recover_logical_segments(struct the_nilfs *, - struct nilfs_sb_info *, - struct nilfs_recovery_info *); +extern int nilfs_salvage_orphan_logs(struct the_nilfs *, + struct nilfs_sb_info *, + struct nilfs_recovery_info *); extern void nilfs_dispose_segment_list(struct list_head *); #endif /* _NILFS_SEGMENT_H */ |