diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/backing-dev.h | 5 | ||||
| -rw-r--r-- | include/linux/writeback.h | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 469d56443c63..a008982e7c08 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -73,6 +73,11 @@ struct backing_dev_info { struct percpu_counter bdi_stat[NR_BDI_STAT_ITEMS]; + unsigned long bw_time_stamp; /* last time write bw is updated */ + unsigned long written_stamp; /* pages written at bw_time_stamp */ + unsigned long write_bandwidth; /* the estimated write bandwidth */ + unsigned long avg_write_bandwidth; /* further smoothed write bw */ + struct prop_local_percpu completions; int dirty_exceeded; diff --git a/include/linux/writeback.h b/include/linux/writeback.h index df1b7f18f100..66862f2d90c8 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -118,6 +118,9 @@ void global_dirty_limits(unsigned long *pbackground, unsigned long *pdirty); unsigned long bdi_dirty_limit(struct backing_dev_info *bdi, unsigned long dirty); +void __bdi_update_bandwidth(struct backing_dev_info *bdi, + unsigned long start_time); + void page_writeback_init(void); void balance_dirty_pages_ratelimited_nr(struct address_space *mapping, unsigned long nr_pages_dirtied); |