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-rw-r--r--fs/nilfs2/recovery.c2
-rw-r--r--fs/nilfs2/segbuf.c4
-rw-r--r--fs/nilfs2/segbuf.h4
-rw-r--r--fs/nilfs2/segment.c3
-rw-r--r--include/linux/nilfs2_fs.h2
5 files changed, 12 insertions, 3 deletions
diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c
index ba43146..bae2a51 100644
--- a/fs/nilfs2/recovery.c
+++ b/fs/nilfs2/recovery.c
@@ -105,6 +105,8 @@ static void store_segsum_info(struct nilfs_segsum_info *ssi,
ssi->nsumblk = DIV_ROUND_UP(ssi->sumbytes, blocksize);
ssi->nfileblk = ssi->nblocks - ssi->nsumblk - !!NILFS_SEG_HAS_SR(ssi);
+
+ /* need to verify ->ss_bytes field if read ->ss_cno */
}
/**
diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index 9f83bc0..2e6a272 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -134,7 +134,7 @@ int nilfs_segbuf_extend_payload(struct nilfs_segment_buffer *segbuf,
}
int nilfs_segbuf_reset(struct nilfs_segment_buffer *segbuf, unsigned flags,
- time_t ctime)
+ time_t ctime, __u64 cno)
{
int err;
@@ -147,6 +147,7 @@ int nilfs_segbuf_reset(struct nilfs_segment_buffer *segbuf, unsigned flags,
segbuf->sb_sum.sumbytes = sizeof(struct nilfs_segment_summary);
segbuf->sb_sum.nfinfo = segbuf->sb_sum.nfileblk = 0;
segbuf->sb_sum.ctime = ctime;
+ segbuf->sb_sum.cno = cno;
return 0;
}
@@ -172,6 +173,7 @@ void nilfs_segbuf_fill_in_segsum(struct nilfs_segment_buffer *segbuf)
raw_sum->ss_nfinfo = cpu_to_le32(segbuf->sb_sum.nfinfo);
raw_sum->ss_sumbytes = cpu_to_le32(segbuf->sb_sum.sumbytes);
raw_sum->ss_pad = 0;
+ raw_sum->ss_cno = cpu_to_le64(segbuf->sb_sum.cno);
}
/*
diff --git a/fs/nilfs2/segbuf.h b/fs/nilfs2/segbuf.h
index e21497f..fdf1c3b 100644
--- a/fs/nilfs2/segbuf.h
+++ b/fs/nilfs2/segbuf.h
@@ -37,6 +37,7 @@
* @sumbytes: Byte count of segment summary
* @nfileblk: Total number of file blocks
* @seg_seq: Segment sequence number
+ * @cno: Checkpoint number
* @ctime: Creation time
* @next: Block number of the next full segment
*/
@@ -48,6 +49,7 @@ struct nilfs_segsum_info {
unsigned long sumbytes;
unsigned long nfileblk;
u64 seg_seq;
+ __u64 cno;
time_t ctime;
sector_t next;
};
@@ -135,7 +137,7 @@ void nilfs_segbuf_map_cont(struct nilfs_segment_buffer *segbuf,
struct nilfs_segment_buffer *prev);
void nilfs_segbuf_set_next_segnum(struct nilfs_segment_buffer *, __u64,
struct the_nilfs *);
-int nilfs_segbuf_reset(struct nilfs_segment_buffer *, unsigned, time_t);
+int nilfs_segbuf_reset(struct nilfs_segment_buffer *, unsigned, time_t, __u64);
int nilfs_segbuf_extend_segsum(struct nilfs_segment_buffer *);
int nilfs_segbuf_extend_payload(struct nilfs_segment_buffer *,
struct buffer_head **);
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index a17bfa1..9f50fde 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -366,7 +366,8 @@ static int nilfs_segctor_reset_segment_buffer(struct nilfs_sc_info *sci)
if (nilfs_doing_gc())
flags = NILFS_SS_GC;
- err = nilfs_segbuf_reset(segbuf, flags, sci->sc_seg_ctime);
+ err = nilfs_segbuf_reset(segbuf, flags, sci->sc_seg_ctime,
+ sci->sc_sbi->s_nilfs->ns_cno);
if (unlikely(err))
return err;
diff --git a/include/linux/nilfs2_fs.h b/include/linux/nilfs2_fs.h
index f960e1d..6505c00 100644
--- a/include/linux/nilfs2_fs.h
+++ b/include/linux/nilfs2_fs.h
@@ -377,6 +377,7 @@ union nilfs_binfo {
* @ss_nfinfo: number of finfo structures
* @ss_sumbytes: total size of segment summary in bytes
* @ss_pad: padding
+ * @ss_cno: checkpoint number
*/
struct nilfs_segment_summary {
__le32 ss_datasum;
@@ -391,6 +392,7 @@ struct nilfs_segment_summary {
__le32 ss_nfinfo;
__le32 ss_sumbytes;
__le32 ss_pad;
+ __le64 ss_cno;
/* array of finfo structures */
};