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nilfs2: move iterator to write log into segment buffer 

This moves iterator to submit write requests for a series of logs into
segbuf.c, and hides nilfs_segbuf_write() and nilfs_segbuf_wait() in
the file.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
This commit is contained in:
Ryusuke Konishi 2009-12-17 00:55:40 +09:00
parent e605f0a724
commit d1c6b72a72
3 changed files with 21 additions and 11 deletions
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18
fs/nilfs2/segbuf.c
View File

@ -40,6 +40,11 @@ struct nilfs_write_info {
};
static int nilfs_segbuf_write(struct nilfs_segment_buffer *segbuf,
struct the_nilfs *nilfs);
static int nilfs_segbuf_wait(struct nilfs_segment_buffer *segbuf);
static struct kmem_cache *nilfs_segbuf_cachep;
static void nilfs_segbuf_init_once(void *obj)
@ -302,6 +307,19 @@ void nilfs_truncate_logs(struct list_head *logs,
}
}
int nilfs_write_logs(struct list_head *logs, struct the_nilfs *nilfs)
{
struct nilfs_segment_buffer *segbuf;
int ret = 0;
list_for_each_entry(segbuf, logs, sb_list) {
ret = nilfs_segbuf_write(segbuf, nilfs);
if (ret)
break;
}
return ret;
}
int nilfs_wait_on_logs(struct list_head *logs)
{
struct nilfs_segment_buffer *segbuf;

5
fs/nilfs2/segbuf.h
View File

@ -166,13 +166,10 @@ nilfs_segbuf_add_file_buffer(struct nilfs_segment_buffer *segbuf,
segbuf->sb_sum.nfileblk++;
}
int nilfs_segbuf_write(struct nilfs_segment_buffer *segbuf,
struct the_nilfs *nilfs);
int nilfs_segbuf_wait(struct nilfs_segment_buffer *segbuf);
void nilfs_clear_logs(struct list_head *logs);
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);
static inline void nilfs_destroy_logs(struct list_head *logs)

9
fs/nilfs2/segment.c
View File

@ -1764,14 +1764,9 @@ static int nilfs_segctor_prepare_write(struct nilfs_sc_info *sci,
static int nilfs_segctor_write(struct nilfs_sc_info *sci,
struct the_nilfs *nilfs)
{
struct nilfs_segment_buffer *segbuf;
int ret = 0;
int ret;
list_for_each_entry(segbuf, &sci->sc_segbufs, sb_list) {
ret = nilfs_segbuf_write(segbuf, nilfs);
if (ret)
break;
}
ret = nilfs_write_logs(&sci->sc_segbufs, nilfs);
list_splice_tail_init(&sci->sc_segbufs, &sci->sc_write_logs);
return ret;
}