diff options
Diffstat (limited to 'fs/nilfs2/segbuf.h')
| -rw-r--r-- | fs/nilfs2/segbuf.h | 51 |
1 files changed, 15 insertions, 36 deletions
diff --git a/fs/nilfs2/segbuf.h b/fs/nilfs2/segbuf.h index 0c3076f4e592..94dfd3517bc0 100644 --- a/fs/nilfs2/segbuf.h +++ b/fs/nilfs2/segbuf.h @@ -27,7 +27,6 @@ #include <linux/buffer_head.h> #include <linux/bio.h> #include <linux/completion.h> -#include <linux/backing-dev.h> /** * struct nilfs_segsum_info - On-memory segment summary @@ -77,7 +76,9 @@ 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_io_error: I/O error status + * @sb_nbio: Number of flying bio requests + * @sb_err: I/O error status + * @sb_bio_event: Completion event of log writing */ struct nilfs_segment_buffer { struct super_block *sb_super; @@ -96,7 +97,9 @@ struct nilfs_segment_buffer { struct list_head sb_payload_buffers; /* including super root */ /* io status */ - int sb_io_error; + int sb_nbio; + atomic_t sb_err; + struct completion sb_bio_event; }; #define NILFS_LIST_SEGBUF(head) \ @@ -125,6 +128,8 @@ struct nilfs_segment_buffer *nilfs_segbuf_new(struct super_block *); void nilfs_segbuf_free(struct nilfs_segment_buffer *); void nilfs_segbuf_map(struct nilfs_segment_buffer *, __u64, unsigned long, struct the_nilfs *); +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); @@ -161,41 +166,15 @@ nilfs_segbuf_add_file_buffer(struct nilfs_segment_buffer *segbuf, segbuf->sb_sum.nfileblk++; } -void nilfs_release_buffers(struct list_head *); +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_segbuf_clear(struct nilfs_segment_buffer *segbuf) +static inline void nilfs_destroy_logs(struct list_head *logs) { - nilfs_release_buffers(&segbuf->sb_segsum_buffers); - nilfs_release_buffers(&segbuf->sb_payload_buffers); + nilfs_truncate_logs(logs, NULL); } -struct nilfs_write_info { - struct bio *bio; - int start, end; /* The region to be submitted */ - int rest_blocks; - int max_pages; - int nr_vecs; - sector_t blocknr; - - int nbio; - atomic_t err; - struct completion bio_event; - /* completion event of segment write */ - - /* - * The following fields must be set explicitly - */ - struct super_block *sb; - struct backing_dev_info *bdi; /* backing dev info */ - struct buffer_head *bh_sr; -}; - - -void nilfs_segbuf_prepare_write(struct nilfs_segment_buffer *, - struct nilfs_write_info *); -int nilfs_segbuf_write(struct nilfs_segment_buffer *, - struct nilfs_write_info *); -int nilfs_segbuf_wait(struct nilfs_segment_buffer *, - struct nilfs_write_info *); - #endif /* _NILFS_SEGBUF_H */ |