diff options
Diffstat (limited to 'fs/nilfs2/segbuf.c')
| -rw-r--r-- | fs/nilfs2/segbuf.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c index d856d62bf886..645c78656aa0 100644 --- a/fs/nilfs2/segbuf.c +++ b/fs/nilfs2/segbuf.c @@ -100,6 +100,22 @@ void nilfs_segbuf_map(struct nilfs_segment_buffer *segbuf, __u64 segnum, segbuf->sb_fseg_end - segbuf->sb_pseg_start + 1; } +/** + * nilfs_segbuf_map_cont - map a new log behind a given log + * @segbuf: new segment buffer + * @prev: segment buffer containing a log to be continued + */ +void nilfs_segbuf_map_cont(struct nilfs_segment_buffer *segbuf, + struct nilfs_segment_buffer *prev) +{ + segbuf->sb_segnum = prev->sb_segnum; + segbuf->sb_fseg_start = prev->sb_fseg_start; + segbuf->sb_fseg_end = prev->sb_fseg_end; + segbuf->sb_pseg_start = prev->sb_pseg_start + prev->sb_sum.nblocks; + segbuf->sb_rest_blocks = + segbuf->sb_fseg_end - segbuf->sb_pseg_start + 1; +} + void nilfs_segbuf_set_next_segnum(struct nilfs_segment_buffer *segbuf, __u64 nextnum, struct the_nilfs *nilfs) { |