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nilfs2: add iterator for segment buffers

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This adds a few iterator functions for segment buffers to make it easy
to handle multiple series of logs.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
This commit is contained in:
Ryusuke Konishi
2009-11-29 16:51:16 +09:00
parent 9c965bac16
commit e29df395bc
3 changed files with 66 additions and 48 deletions
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18
fs/nilfs2/segbuf.h
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@@ -164,16 +164,18 @@ nilfs_segbuf_add_file_buffer(struct nilfs_segment_buffer *segbuf,
segbuf->sb_sum.nfileblk++;
}
void nilfs_release_buffers(struct list_head *);
static inline void nilfs_segbuf_clear(struct nilfs_segment_buffer *segbuf)
{
nilfs_release_buffers(&segbuf->sb_segsum_buffers);
nilfs_release_buffers(&segbuf->sb_payload_buffers);
}
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_wait_on_logs(struct list_head *logs);
static inline void nilfs_destroy_logs(struct list_head *logs)
{
nilfs_truncate_logs(logs, NULL);
}
#endif /* _NILFS_SEGBUF_H */