Lines Matching refs:wb
134 struct bdi_writeback *wb; member
158 #define GDTC_INIT(__wb) .wb = (__wb), \
164 #define MDTC_INIT(__wb, __gdtc) .wb = (__wb), \
184 static struct fprop_local_percpu *wb_memcg_completions(struct bdi_writeback *wb) in wb_memcg_completions() argument
186 return &wb->memcg_completions; in wb_memcg_completions()
189 static void wb_min_max_ratio(struct bdi_writeback *wb, in wb_min_max_ratio() argument
192 unsigned long this_bw = wb->avg_write_bandwidth; in wb_min_max_ratio()
193 unsigned long tot_bw = atomic_long_read(&wb->bdi->tot_write_bandwidth); in wb_min_max_ratio()
194 unsigned long long min = wb->bdi->min_ratio; in wb_min_max_ratio()
195 unsigned long long max = wb->bdi->max_ratio; in wb_min_max_ratio()
218 #define GDTC_INIT(__wb) .wb = (__wb), \
238 static struct fprop_local_percpu *wb_memcg_completions(struct bdi_writeback *wb) in wb_memcg_completions() argument
243 static void wb_min_max_ratio(struct bdi_writeback *wb, in wb_min_max_ratio() argument
246 *minp = wb->bdi->min_ratio; in wb_min_max_ratio()
247 *maxp = wb->bdi->max_ratio; in wb_min_max_ratio()
600 static inline void __wb_writeout_inc(struct bdi_writeback *wb) in __wb_writeout_inc() argument
604 inc_wb_stat(wb, WB_WRITTEN); in __wb_writeout_inc()
605 wb_domain_writeout_inc(&global_wb_domain, &wb->completions, in __wb_writeout_inc()
606 wb->bdi->max_prop_frac); in __wb_writeout_inc()
608 cgdom = mem_cgroup_wb_domain(wb); in __wb_writeout_inc()
610 wb_domain_writeout_inc(cgdom, wb_memcg_completions(wb), in __wb_writeout_inc()
611 wb->bdi->max_prop_frac); in __wb_writeout_inc()
614 void wb_writeout_inc(struct bdi_writeback *wb) in wb_writeout_inc() argument
619 __wb_writeout_inc(wb); in wb_writeout_inc()
782 wb_min_max_ratio(dtc->wb, &wb_min_ratio, &wb_max_ratio); in __wb_calc_thresh()
791 unsigned long wb_calc_thresh(struct bdi_writeback *wb, unsigned long thresh) in wb_calc_thresh() argument
793 struct dirty_throttle_control gdtc = { GDTC_INIT(wb), in wb_calc_thresh()
906 struct bdi_writeback *wb = dtc->wb; in wb_position_ratio() local
907 unsigned long write_bw = wb->avg_write_bandwidth; in wb_position_ratio()
956 if (unlikely(wb->bdi->capabilities & BDI_CAP_STRICTLIMIT)) { in wb_position_ratio()
1083 static void wb_update_write_bandwidth(struct bdi_writeback *wb, in wb_update_write_bandwidth() argument
1088 unsigned long avg = wb->avg_write_bandwidth; in wb_update_write_bandwidth()
1089 unsigned long old = wb->write_bandwidth; in wb_update_write_bandwidth()
1102 bw = written - min(written, wb->written_stamp); in wb_update_write_bandwidth()
1109 bw += (u64)wb->write_bandwidth * (period - elapsed); in wb_update_write_bandwidth()
1124 if (wb_has_dirty_io(wb)) { in wb_update_write_bandwidth()
1125 long delta = avg - wb->avg_write_bandwidth; in wb_update_write_bandwidth()
1127 &wb->bdi->tot_write_bandwidth) <= 0); in wb_update_write_bandwidth()
1129 wb->write_bandwidth = bw; in wb_update_write_bandwidth()
1130 wb->avg_write_bandwidth = avg; in wb_update_write_bandwidth()
1191 struct bdi_writeback *wb = dtc->wb; in wb_update_dirty_ratelimit() local
1196 unsigned long write_bw = wb->avg_write_bandwidth; in wb_update_dirty_ratelimit()
1197 unsigned long dirty_ratelimit = wb->dirty_ratelimit; in wb_update_dirty_ratelimit()
1209 dirty_rate = (dirtied - wb->dirtied_stamp) * HZ / elapsed; in wb_update_dirty_ratelimit()
1303 if (unlikely(wb->bdi->capabilities & BDI_CAP_STRICTLIMIT)) { in wb_update_dirty_ratelimit()
1312 x = min3(wb->balanced_dirty_ratelimit, in wb_update_dirty_ratelimit()
1317 x = max3(wb->balanced_dirty_ratelimit, in wb_update_dirty_ratelimit()
1339 wb->dirty_ratelimit = max(dirty_ratelimit, 1UL); in wb_update_dirty_ratelimit()
1340 wb->balanced_dirty_ratelimit = balanced_dirty_ratelimit; in wb_update_dirty_ratelimit()
1342 trace_bdi_dirty_ratelimit(wb, dirty_rate, task_ratelimit); in wb_update_dirty_ratelimit()
1350 struct bdi_writeback *wb = gdtc->wb; in __wb_update_bandwidth() local
1352 unsigned long elapsed = now - wb->bw_time_stamp; in __wb_update_bandwidth()
1356 lockdep_assert_held(&wb->list_lock); in __wb_update_bandwidth()
1364 dirtied = percpu_counter_read(&wb->stat[WB_DIRTIED]); in __wb_update_bandwidth()
1365 written = percpu_counter_read(&wb->stat[WB_WRITTEN]); in __wb_update_bandwidth()
1371 if (elapsed > HZ && time_before(wb->bw_time_stamp, start_time)) in __wb_update_bandwidth()
1387 wb_update_write_bandwidth(wb, elapsed, written); in __wb_update_bandwidth()
1390 wb->dirtied_stamp = dirtied; in __wb_update_bandwidth()
1391 wb->written_stamp = written; in __wb_update_bandwidth()
1392 wb->bw_time_stamp = now; in __wb_update_bandwidth()
1395 void wb_update_bandwidth(struct bdi_writeback *wb, unsigned long start_time) in wb_update_bandwidth() argument
1397 struct dirty_throttle_control gdtc = { GDTC_INIT(wb) }; in wb_update_bandwidth()
1419 static unsigned long wb_max_pause(struct bdi_writeback *wb, in wb_max_pause() argument
1422 unsigned long bw = wb->avg_write_bandwidth; in wb_max_pause()
1438 static long wb_min_pause(struct bdi_writeback *wb, in wb_min_pause() argument
1444 long hi = ilog2(wb->avg_write_bandwidth); in wb_min_pause()
1445 long lo = ilog2(wb->dirty_ratelimit); in wb_min_pause()
1515 struct bdi_writeback *wb = dtc->wb; in wb_dirty_limits() local
1546 wb_reclaimable = wb_stat_sum(wb, WB_RECLAIMABLE); in wb_dirty_limits()
1547 dtc->wb_dirty = wb_reclaimable + wb_stat_sum(wb, WB_WRITEBACK); in wb_dirty_limits()
1549 wb_reclaimable = wb_stat(wb, WB_RECLAIMABLE); in wb_dirty_limits()
1550 dtc->wb_dirty = wb_reclaimable + wb_stat(wb, WB_WRITEBACK); in wb_dirty_limits()
1561 static void balance_dirty_pages(struct bdi_writeback *wb, in balance_dirty_pages() argument
1564 struct dirty_throttle_control gdtc_stor = { GDTC_INIT(wb) }; in balance_dirty_pages()
1565 struct dirty_throttle_control mdtc_stor = { MDTC_INIT(wb, &gdtc_stor) }; in balance_dirty_pages()
1579 struct backing_dev_info *bdi = wb->bdi; in balance_dirty_pages()
1622 mem_cgroup_wb_stats(wb, &filepages, &headroom, in balance_dirty_pages()
1667 if (unlikely(!writeback_in_progress(wb))) in balance_dirty_pages()
1668 wb_start_background_writeback(wb); in balance_dirty_pages()
1670 mem_cgroup_flush_foreign(wb); in balance_dirty_pages()
1703 if (dirty_exceeded && !wb->dirty_exceeded) in balance_dirty_pages()
1704 wb->dirty_exceeded = 1; in balance_dirty_pages()
1706 if (time_is_before_jiffies(wb->bw_time_stamp + in balance_dirty_pages()
1708 spin_lock(&wb->list_lock); in balance_dirty_pages()
1710 spin_unlock(&wb->list_lock); in balance_dirty_pages()
1714 dirty_ratelimit = wb->dirty_ratelimit; in balance_dirty_pages()
1717 max_pause = wb_max_pause(wb, sdtc->wb_dirty); in balance_dirty_pages()
1718 min_pause = wb_min_pause(wb, max_pause, in balance_dirty_pages()
1739 trace_balance_dirty_pages(wb, in balance_dirty_pages()
1768 trace_balance_dirty_pages(wb, in balance_dirty_pages()
1781 wb->dirty_sleep = now; in balance_dirty_pages()
1812 if (!dirty_exceeded && wb->dirty_exceeded) in balance_dirty_pages()
1813 wb->dirty_exceeded = 0; in balance_dirty_pages()
1815 if (writeback_in_progress(wb)) in balance_dirty_pages()
1830 wb_start_background_writeback(wb); in balance_dirty_pages()
1868 struct bdi_writeback *wb = NULL; in balance_dirty_pages_ratelimited() local
1876 wb = wb_get_create_current(bdi, GFP_KERNEL); in balance_dirty_pages_ratelimited()
1877 if (!wb) in balance_dirty_pages_ratelimited()
1878 wb = &bdi->wb; in balance_dirty_pages_ratelimited()
1881 if (wb->dirty_exceeded) in balance_dirty_pages_ratelimited()
1913 balance_dirty_pages(wb, current->nr_dirtied); in balance_dirty_pages_ratelimited()
1915 wb_put(wb); in balance_dirty_pages_ratelimited()
1928 bool wb_over_bg_thresh(struct bdi_writeback *wb) in wb_over_bg_thresh() argument
1930 struct dirty_throttle_control gdtc_stor = { GDTC_INIT(wb) }; in wb_over_bg_thresh()
1931 struct dirty_throttle_control mdtc_stor = { MDTC_INIT(wb, &gdtc_stor) }; in wb_over_bg_thresh()
1948 if (wb_stat(wb, WB_RECLAIMABLE) > in wb_over_bg_thresh()
1949 wb_calc_thresh(gdtc->wb, gdtc->bg_thresh)) in wb_over_bg_thresh()
1955 mem_cgroup_wb_stats(wb, &filepages, &headroom, &mdtc->dirty, in wb_over_bg_thresh()
1963 if (wb_stat(wb, WB_RECLAIMABLE) > in wb_over_bg_thresh()
1964 wb_calc_thresh(mdtc->wb, mdtc->bg_thresh)) in wb_over_bg_thresh()
2419 struct bdi_writeback *wb; in account_page_dirtied() local
2422 wb = inode_to_wb(inode); in account_page_dirtied()
2427 inc_wb_stat(wb, WB_RECLAIMABLE); in account_page_dirtied()
2428 inc_wb_stat(wb, WB_DIRTIED); in account_page_dirtied()
2433 mem_cgroup_track_foreign_dirty(page, wb); in account_page_dirtied()
2443 struct bdi_writeback *wb) in account_page_cleaned() argument
2448 dec_wb_stat(wb, WB_RECLAIMABLE); in account_page_cleaned()
2510 struct bdi_writeback *wb; in account_page_redirty() local
2513 wb = unlocked_inode_to_wb_begin(inode, &cookie); in account_page_redirty()
2516 dec_wb_stat(wb, WB_DIRTIED); in account_page_redirty()
2622 struct bdi_writeback *wb; in __cancel_dirty_page() local
2626 wb = unlocked_inode_to_wb_begin(inode, &cookie); in __cancel_dirty_page()
2629 account_page_cleaned(page, mapping, wb); in __cancel_dirty_page()
2662 struct bdi_writeback *wb; in clear_page_dirty_for_io() local
2700 wb = unlocked_inode_to_wb_begin(inode, &cookie); in clear_page_dirty_for_io()
2704 dec_wb_stat(wb, WB_RECLAIMABLE); in clear_page_dirty_for_io()
2734 struct bdi_writeback *wb = inode_to_wb(inode); in test_clear_page_writeback() local
2736 dec_wb_stat(wb, WB_WRITEBACK); in test_clear_page_writeback()
2737 __wb_writeout_inc(wb); in test_clear_page_writeback()