* @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
- * @sc_active_segments: List of active segments that were already written out
- * @sc_cleaning_segments: List of segments to be freed through construction
* @sc_copied_buffers: List of copied buffers (buffer heads) to freeze data
+ * @sc_freesegs: array of segment numbers to be freed
+ * @sc_nfreesegs: number of segments on @sc_freesegs
+ * @sc_dsync_inode: inode whose data pages are written for a sync operation
+ * @sc_dsync_start: start byte offset of data pages
+ * @sc_dsync_end: end byte offset of data pages (inclusive)
* @sc_segbufs: List of segment buffers
+ * @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_nblk_this_inc: Number of blocks included in the current logical segment
* @sc_seg_ctime: Creation time
* @sc_flags: Internal flags
- * @sc_sketch_inode: Inode of the sketch file
* @sc_state_lock: spinlock for sc_state and so on
* @sc_state: Segctord state flags
* @sc_flush_request: inode bitmap of metadata files to be flushed
struct list_head sc_dirty_files;
struct list_head sc_gc_inodes;
- struct list_head sc_active_segments;
- struct list_head sc_cleaning_segments;
struct list_head sc_copied_buffers;
+ __u64 *sc_freesegs;
+ size_t sc_nfreesegs;
+
+ struct nilfs_inode_info *sc_dsync_inode;
+ loff_t sc_dsync_start;
+ loff_t sc_dsync_end;
+
/* Segment buffers */
struct list_head sc_segbufs;
+ struct list_head sc_write_logs;
unsigned long sc_segbuf_nblocks;
struct nilfs_segment_buffer *sc_curseg;
struct buffer_head *sc_super_root;
unsigned long sc_flags;
- /*
- * Pointer to an inode of the sketch.
- * This pointer is kept only while it contains data.
- * We protect it with a semaphore of the segment constructor.
- */
- struct inode *sc_sketch_inode;
-
spinlock_t sc_state_lock;
unsigned long sc_state;
unsigned long sc_flush_request;
NILFS_SC_SUPER_ROOT, /* The latest segment has a super root */
NILFS_SC_PRIOR_FLUSH, /* Requesting immediate flush without making a
checkpoint */
+ NILFS_SC_HAVE_DELTA, /* Next checkpoint will have update of files
+ other than DAT, cpfile, sufile, or files
+ moved by GC */
};
/* sc_state */
logical segment with a super root */
#define NILFS_SC_DEFAULT_SR_FREQ 30 /* Maximum frequency of super root
creation */
-#define NILFS_SC_DEFAULT_SB_FREQ 30 /* Minimum interval of periodical
- update of superblock (reserved) */
/*
* The default threshold amount of data, in block counts.
extern void nilfs_relax_pressure_in_lock(struct super_block *);
extern int nilfs_construct_segment(struct super_block *);
-extern int nilfs_construct_dsync_segment(struct super_block *,
- struct inode *);
+extern int nilfs_construct_dsync_segment(struct super_block *, struct inode *,
+ loff_t, loff_t);
extern void nilfs_flush_segment(struct super_block *, ino_t);
-extern int nilfs_clean_segments(struct super_block *, void __user *);
-
-extern int nilfs_segctor_add_segments_to_be_freed(struct nilfs_sc_info *,
- __u64 *, size_t);
-extern void nilfs_segctor_clear_segments_to_be_freed(struct nilfs_sc_info *);
+extern int nilfs_clean_segments(struct super_block *, struct nilfs_argv *,
+ void **);
-extern int nilfs_attach_segment_constructor(struct nilfs_sb_info *,
- struct nilfs_recovery_info *);
+extern int nilfs_attach_segment_constructor(struct nilfs_sb_info *);
extern void nilfs_detach_segment_constructor(struct nilfs_sb_info *);
/* recovery.c */
extern int nilfs_recover_logical_segments(struct the_nilfs *,
struct nilfs_sb_info *,
struct nilfs_recovery_info *);
+extern void nilfs_dispose_segment_list(struct list_head *);
#endif /* _NILFS_SEGMENT_H */