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-rw-r--r--fs/nilfs2/segbuf.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/nilfs2/segbuf.h b/fs/nilfs2/segbuf.h
index 94dfd3517bc0..fdf1c3b6d673 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;
};
@@ -76,6 +78,7 @@ struct nilfs_segsum_info {
* @sb_rest_blocks: Number of residual blocks in the current segment
* @sb_segsum_buffers: List of buffers for segment summaries
* @sb_payload_buffers: List of buffers for segment payload
+ * @sb_super_root: Pointer to buffer storing a super root block (if exists)
* @sb_nbio: Number of flying bio requests
* @sb_err: I/O error status
* @sb_bio_event: Completion event of log writing
@@ -95,6 +98,7 @@ struct nilfs_segment_buffer {
/* Buffers */
struct list_head sb_segsum_buffers;
struct list_head sb_payload_buffers; /* including super root */
+ struct buffer_head *sb_super_root;
/* io status */
int sb_nbio;
@@ -121,6 +125,7 @@ struct nilfs_segment_buffer {
b_assoc_buffers))
#define NILFS_SEGBUF_BH_IS_LAST(bh, head) ((bh)->b_assoc_buffers.next == head)
+extern struct kmem_cache *nilfs_segbuf_cachep;
int __init nilfs_init_segbuf_cache(void);
void nilfs_destroy_segbuf_cache(void);
@@ -132,13 +137,11 @@ 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 **);
void nilfs_segbuf_fill_in_segsum(struct nilfs_segment_buffer *);
-void nilfs_segbuf_fill_in_segsum_crc(struct nilfs_segment_buffer *, u32);
-void nilfs_segbuf_fill_in_data_crc(struct nilfs_segment_buffer *, u32);
static inline void
nilfs_segbuf_add_segsum_buffer(struct nilfs_segment_buffer *segbuf,
@@ -171,6 +174,7 @@ void nilfs_truncate_logs(struct list_head *logs,
struct nilfs_segment_buffer *last);
int nilfs_write_logs(struct list_head *logs, struct the_nilfs *nilfs);
int nilfs_wait_on_logs(struct list_head *logs);
+void nilfs_add_checksums_on_logs(struct list_head *logs, u32 seed);
static inline void nilfs_destroy_logs(struct list_head *logs)
{