Lines Matching refs:cno
27 nilfs_cpfile_get_blkoff(const struct inode *cpfile, __u64 cno)
29 __u64 tcno = cno + NILFS_MDT(cpfile)->mi_first_entry_offset - 1;
37 nilfs_cpfile_get_offset(const struct inode *cpfile, __u64 cno)
39 __u64 tcno = cno + NILFS_MDT(cpfile)->mi_first_entry_offset - 1;
63 __u64 cno)
65 return nilfs_cpfile_get_blkoff(cpfile, cno) == 0;
106 nilfs_cpfile_block_get_checkpoint(const struct inode *cpfile, __u64 cno,
110 return kaddr + bh_offset(bh) + nilfs_cpfile_get_offset(cpfile, cno) *
135 __u64 cno,
140 nilfs_cpfile_get_blkoff(cpfile, cno),
183 __u64 cno)
186 nilfs_cpfile_get_blkoff(cpfile, cno));
192 * @cno: checkpoint number
198 * specified by @cno. A new checkpoint will be created if @cno is the current
215 __u64 cno,
226 if (unlikely(cno < 1 || cno > nilfs_mdt_cno(cpfile) ||
227 (cno < nilfs_mdt_cno(cpfile) && create)))
235 ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, create, &cp_bh);
239 cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
249 if (!nilfs_cpfile_is_in_first(cpfile, cno))
278 * @cno: checkpoint number
282 * specified by @cno. @bh must be the buffer head which has been returned by
283 * a previous call to nilfs_cpfile_get_checkpoint() with @cno.
285 void nilfs_cpfile_put_checkpoint(struct inode *cpfile, __u64 cno,
319 __u64 cno;
339 for (cno = start; cno < end; cno += ncps) {
340 ncps = nilfs_cpfile_checkpoints_in_block(cpfile, cno, end);
341 ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &cp_bh);
352 cpfile, cno, cp_bh, kaddr);
366 if (!nilfs_cpfile_is_in_first(cpfile, cno)) {
376 cpfile, cno);
431 __u64 cur_cno = nilfs_mdt_cno(cpfile), cno = *cnop;
436 if (cno == 0)
440 for (n = 0; n < nci; cno += ncps) {
442 cpfile, cno, cur_cno - 1, &cno, &bh);
448 ncps = nilfs_cpfile_checkpoints_in_block(cpfile, cno, cur_cno);
451 cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, bh, kaddr);
557 * @cno:
578 * @cno:
580 int nilfs_cpfile_delete_checkpoint(struct inode *cpfile, __u64 cno)
583 __u64 tcno = cno;
589 else if (nci == 0 || ci.ci_cno != cno)
594 return nilfs_cpfile_delete_checkpoints(cpfile, cno, cno + 1);
599 __u64 cno,
607 if (cno != 0) {
608 cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, bh, kaddr);
617 static int nilfs_cpfile_set_snapshot(struct inode *cpfile, __u64 cno)
628 if (cno == 0)
632 ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &cp_bh);
636 cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
660 while (prev > cno) {
693 list->ssl_prev = cpu_to_le64(cno);
697 cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
706 list->ssl_next = cpu_to_le64(cno);
736 static int nilfs_cpfile_clear_snapshot(struct inode *cpfile, __u64 cno)
746 if (cno == 0)
750 ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &cp_bh);
754 cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
806 cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
842 * @cno: checkpoint number
847 * @cno is a snapshot, or 0 if not. On error, one of the following negative
856 int nilfs_cpfile_is_snapshot(struct inode *cpfile, __u64 cno)
867 if (cno == 0 || cno >= nilfs_mdt_cno(cpfile))
871 ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &bh);
875 cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, bh, kaddr);
891 * @cno: checkpoint number
895 * specified by @cno. The mode @mode is NILFS_CHECKPOINT or NILFS_SNAPSHOT.
906 int nilfs_cpfile_change_cpmode(struct inode *cpfile, __u64 cno, int mode)
912 if (nilfs_checkpoint_is_mounted(cpfile->i_sb, cno))
921 ret = nilfs_cpfile_clear_snapshot(cpfile, cno);
924 return nilfs_cpfile_set_snapshot(cpfile, cno);