Lines Matching refs:wb
128 struct bdi_writeback *wb; member
152 #define GDTC_INIT(__wb) .wb = (__wb), \
158 #define MDTC_INIT(__wb, __gdtc) .wb = (__wb), \
178 static struct fprop_local_percpu *wb_memcg_completions(struct bdi_writeback *wb) in wb_memcg_completions() argument
180 return &wb->memcg_completions; in wb_memcg_completions()
183 static void wb_min_max_ratio(struct bdi_writeback *wb, in wb_min_max_ratio() argument
186 unsigned long this_bw = READ_ONCE(wb->avg_write_bandwidth); in wb_min_max_ratio()
187 unsigned long tot_bw = atomic_long_read(&wb->bdi->tot_write_bandwidth); in wb_min_max_ratio()
188 unsigned long long min = wb->bdi->min_ratio; in wb_min_max_ratio()
189 unsigned long long max = wb->bdi->max_ratio; in wb_min_max_ratio()
212 #define GDTC_INIT(__wb) .wb = (__wb), \
232 static struct fprop_local_percpu *wb_memcg_completions(struct bdi_writeback *wb) in wb_memcg_completions() argument
237 static void wb_min_max_ratio(struct bdi_writeback *wb, in wb_min_max_ratio() argument
240 *minp = wb->bdi->min_ratio; in wb_min_max_ratio()
241 *maxp = wb->bdi->max_ratio; in wb_min_max_ratio()
578 static inline void __wb_writeout_add(struct bdi_writeback *wb, long nr) in __wb_writeout_add() argument
582 wb_stat_mod(wb, WB_WRITTEN, nr); in __wb_writeout_add()
583 wb_domain_writeout_add(&global_wb_domain, &wb->completions, in __wb_writeout_add()
584 wb->bdi->max_prop_frac, nr); in __wb_writeout_add()
586 cgdom = mem_cgroup_wb_domain(wb); in __wb_writeout_add()
588 wb_domain_writeout_add(cgdom, wb_memcg_completions(wb), in __wb_writeout_add()
589 wb->bdi->max_prop_frac, nr); in __wb_writeout_add()
592 void wb_writeout_inc(struct bdi_writeback *wb) in wb_writeout_inc() argument
597 __wb_writeout_add(wb, 1); in wb_writeout_inc()
767 wb_min_max_ratio(dtc->wb, &wb_min_ratio, &wb_max_ratio); in __wb_calc_thresh()
776 unsigned long wb_calc_thresh(struct bdi_writeback *wb, unsigned long thresh) in wb_calc_thresh() argument
778 struct dirty_throttle_control gdtc = { GDTC_INIT(wb), in wb_calc_thresh()
891 struct bdi_writeback *wb = dtc->wb; in wb_position_ratio() local
892 unsigned long write_bw = READ_ONCE(wb->avg_write_bandwidth); in wb_position_ratio()
941 if (unlikely(wb->bdi->capabilities & BDI_CAP_STRICTLIMIT)) { in wb_position_ratio()
1068 static void wb_update_write_bandwidth(struct bdi_writeback *wb, in wb_update_write_bandwidth() argument
1073 unsigned long avg = wb->avg_write_bandwidth; in wb_update_write_bandwidth()
1074 unsigned long old = wb->write_bandwidth; in wb_update_write_bandwidth()
1087 bw = written - min(written, wb->written_stamp); in wb_update_write_bandwidth()
1094 bw += (u64)wb->write_bandwidth * (period - elapsed); in wb_update_write_bandwidth()
1109 if (wb_has_dirty_io(wb)) { in wb_update_write_bandwidth()
1110 long delta = avg - wb->avg_write_bandwidth; in wb_update_write_bandwidth()
1112 &wb->bdi->tot_write_bandwidth) <= 0); in wb_update_write_bandwidth()
1114 wb->write_bandwidth = bw; in wb_update_write_bandwidth()
1115 WRITE_ONCE(wb->avg_write_bandwidth, avg); in wb_update_write_bandwidth()
1176 struct bdi_writeback *wb = dtc->wb; in wb_update_dirty_ratelimit() local
1181 unsigned long write_bw = wb->avg_write_bandwidth; in wb_update_dirty_ratelimit()
1182 unsigned long dirty_ratelimit = wb->dirty_ratelimit; in wb_update_dirty_ratelimit()
1194 dirty_rate = (dirtied - wb->dirtied_stamp) * HZ / elapsed; in wb_update_dirty_ratelimit()
1288 if (unlikely(wb->bdi->capabilities & BDI_CAP_STRICTLIMIT)) { in wb_update_dirty_ratelimit()
1297 x = min3(wb->balanced_dirty_ratelimit, in wb_update_dirty_ratelimit()
1302 x = max3(wb->balanced_dirty_ratelimit, in wb_update_dirty_ratelimit()
1324 WRITE_ONCE(wb->dirty_ratelimit, max(dirty_ratelimit, 1UL)); in wb_update_dirty_ratelimit()
1325 wb->balanced_dirty_ratelimit = balanced_dirty_ratelimit; in wb_update_dirty_ratelimit()
1327 trace_bdi_dirty_ratelimit(wb, dirty_rate, task_ratelimit); in wb_update_dirty_ratelimit()
1334 struct bdi_writeback *wb = gdtc->wb; in __wb_update_bandwidth() local
1340 spin_lock(&wb->list_lock); in __wb_update_bandwidth()
1348 elapsed = max(now - wb->bw_time_stamp, 1UL); in __wb_update_bandwidth()
1349 dirtied = percpu_counter_read(&wb->stat[WB_DIRTIED]); in __wb_update_bandwidth()
1350 written = percpu_counter_read(&wb->stat[WB_WRITTEN]); in __wb_update_bandwidth()
1365 wb_update_write_bandwidth(wb, elapsed, written); in __wb_update_bandwidth()
1367 wb->dirtied_stamp = dirtied; in __wb_update_bandwidth()
1368 wb->written_stamp = written; in __wb_update_bandwidth()
1369 WRITE_ONCE(wb->bw_time_stamp, now); in __wb_update_bandwidth()
1370 spin_unlock(&wb->list_lock); in __wb_update_bandwidth()
1373 void wb_update_bandwidth(struct bdi_writeback *wb) in wb_update_bandwidth() argument
1375 struct dirty_throttle_control gdtc = { GDTC_INIT(wb) }; in wb_update_bandwidth()
1383 static void wb_bandwidth_estimate_start(struct bdi_writeback *wb) in wb_bandwidth_estimate_start() argument
1386 unsigned long elapsed = now - READ_ONCE(wb->bw_time_stamp); in wb_bandwidth_estimate_start()
1389 !atomic_read(&wb->writeback_inodes)) { in wb_bandwidth_estimate_start()
1390 spin_lock(&wb->list_lock); in wb_bandwidth_estimate_start()
1391 wb->dirtied_stamp = wb_stat(wb, WB_DIRTIED); in wb_bandwidth_estimate_start()
1392 wb->written_stamp = wb_stat(wb, WB_WRITTEN); in wb_bandwidth_estimate_start()
1393 WRITE_ONCE(wb->bw_time_stamp, now); in wb_bandwidth_estimate_start()
1394 spin_unlock(&wb->list_lock); in wb_bandwidth_estimate_start()
1415 static unsigned long wb_max_pause(struct bdi_writeback *wb, in wb_max_pause() argument
1418 unsigned long bw = READ_ONCE(wb->avg_write_bandwidth); in wb_max_pause()
1434 static long wb_min_pause(struct bdi_writeback *wb, in wb_min_pause() argument
1440 long hi = ilog2(READ_ONCE(wb->avg_write_bandwidth)); in wb_min_pause()
1441 long lo = ilog2(READ_ONCE(wb->dirty_ratelimit)); in wb_min_pause()
1511 struct bdi_writeback *wb = dtc->wb; in wb_dirty_limits() local
1542 wb_reclaimable = wb_stat_sum(wb, WB_RECLAIMABLE); in wb_dirty_limits()
1543 dtc->wb_dirty = wb_reclaimable + wb_stat_sum(wb, WB_WRITEBACK); in wb_dirty_limits()
1545 wb_reclaimable = wb_stat(wb, WB_RECLAIMABLE); in wb_dirty_limits()
1546 dtc->wb_dirty = wb_reclaimable + wb_stat(wb, WB_WRITEBACK); in wb_dirty_limits()
1557 static int balance_dirty_pages(struct bdi_writeback *wb, in balance_dirty_pages() argument
1560 struct dirty_throttle_control gdtc_stor = { GDTC_INIT(wb) }; in balance_dirty_pages()
1561 struct dirty_throttle_control mdtc_stor = { MDTC_INIT(wb, &gdtc_stor) }; in balance_dirty_pages()
1575 struct backing_dev_info *bdi = wb->bdi; in balance_dirty_pages()
1612 mem_cgroup_wb_stats(wb, &filepages, &headroom, in balance_dirty_pages()
1641 !writeback_in_progress(wb)) in balance_dirty_pages()
1642 wb_start_background_writeback(wb); in balance_dirty_pages()
1675 if (unlikely(!writeback_in_progress(wb))) in balance_dirty_pages()
1676 wb_start_background_writeback(wb); in balance_dirty_pages()
1678 mem_cgroup_flush_foreign(wb); in balance_dirty_pages()
1733 if (dirty_exceeded != wb->dirty_exceeded) in balance_dirty_pages()
1734 wb->dirty_exceeded = dirty_exceeded; in balance_dirty_pages()
1736 if (time_is_before_jiffies(READ_ONCE(wb->bw_time_stamp) + in balance_dirty_pages()
1741 dirty_ratelimit = READ_ONCE(wb->dirty_ratelimit); in balance_dirty_pages()
1744 max_pause = wb_max_pause(wb, sdtc->wb_dirty); in balance_dirty_pages()
1745 min_pause = wb_min_pause(wb, max_pause, in balance_dirty_pages()
1766 trace_balance_dirty_pages(wb, in balance_dirty_pages()
1795 trace_balance_dirty_pages(wb, in balance_dirty_pages()
1812 wb->dirty_sleep = now; in balance_dirty_pages()
1885 struct bdi_writeback *wb = NULL; in balance_dirty_pages_ratelimited_flags() local
1894 wb = wb_get_create_current(bdi, GFP_KERNEL); in balance_dirty_pages_ratelimited_flags()
1895 if (!wb) in balance_dirty_pages_ratelimited_flags()
1896 wb = &bdi->wb; in balance_dirty_pages_ratelimited_flags()
1899 if (wb->dirty_exceeded) in balance_dirty_pages_ratelimited_flags()
1931 ret = balance_dirty_pages(wb, current->nr_dirtied, flags); in balance_dirty_pages_ratelimited_flags()
1933 wb_put(wb); in balance_dirty_pages_ratelimited_flags()
1965 bool wb_over_bg_thresh(struct bdi_writeback *wb) in wb_over_bg_thresh() argument
1967 struct dirty_throttle_control gdtc_stor = { GDTC_INIT(wb) }; in wb_over_bg_thresh()
1968 struct dirty_throttle_control mdtc_stor = { MDTC_INIT(wb, &gdtc_stor) }; in wb_over_bg_thresh()
1986 thresh = wb_calc_thresh(gdtc->wb, gdtc->bg_thresh); in wb_over_bg_thresh()
1988 reclaimable = wb_stat_sum(wb, WB_RECLAIMABLE); in wb_over_bg_thresh()
1990 reclaimable = wb_stat(wb, WB_RECLAIMABLE); in wb_over_bg_thresh()
1998 mem_cgroup_wb_stats(wb, &filepages, &headroom, &mdtc->dirty, in wb_over_bg_thresh()
2006 thresh = wb_calc_thresh(mdtc->wb, mdtc->bg_thresh); in wb_over_bg_thresh()
2008 reclaimable = wb_stat_sum(wb, WB_RECLAIMABLE); in wb_over_bg_thresh()
2010 reclaimable = wb_stat(wb, WB_RECLAIMABLE); in wb_over_bg_thresh()
2461 struct bdi_writeback *wb; in do_writepages() local
2465 wb = inode_to_wb_wbc(mapping->host, wbc); in do_writepages()
2466 wb_bandwidth_estimate_start(wb); in do_writepages()
2489 if (time_is_before_jiffies(READ_ONCE(wb->bw_time_stamp) + in do_writepages()
2491 wb_update_bandwidth(wb); in do_writepages()
2561 struct bdi_writeback *wb; in folio_account_dirtied() local
2565 wb = inode_to_wb(inode); in folio_account_dirtied()
2570 wb_stat_mod(wb, WB_RECLAIMABLE, nr); in folio_account_dirtied()
2571 wb_stat_mod(wb, WB_DIRTIED, nr); in folio_account_dirtied()
2576 mem_cgroup_track_foreign_dirty(folio, wb); in folio_account_dirtied()
2585 void folio_account_cleaned(struct folio *folio, struct bdi_writeback *wb) in folio_account_cleaned() argument
2591 wb_stat_mod(wb, WB_RECLAIMABLE, -nr); in folio_account_cleaned()
2679 struct bdi_writeback *wb; in folio_account_redirty() local
2683 wb = unlocked_inode_to_wb_begin(inode, &cookie); in folio_account_redirty()
2686 wb_stat_mod(wb, WB_DIRTIED, -nr); in folio_account_redirty()
2796 struct bdi_writeback *wb; in __folio_cancel_dirty() local
2800 wb = unlocked_inode_to_wb_begin(inode, &cookie); in __folio_cancel_dirty()
2803 folio_account_cleaned(folio, wb); in __folio_cancel_dirty()
2836 struct bdi_writeback *wb; in folio_clear_dirty_for_io() local
2874 wb = unlocked_inode_to_wb_begin(inode, &cookie); in folio_clear_dirty_for_io()
2879 wb_stat_mod(wb, WB_RECLAIMABLE, -nr); in folio_clear_dirty_for_io()
2889 static void wb_inode_writeback_start(struct bdi_writeback *wb) in wb_inode_writeback_start() argument
2891 atomic_inc(&wb->writeback_inodes); in wb_inode_writeback_start()
2894 static void wb_inode_writeback_end(struct bdi_writeback *wb) in wb_inode_writeback_end() argument
2897 atomic_dec(&wb->writeback_inodes); in wb_inode_writeback_end()
2905 spin_lock_irqsave(&wb->work_lock, flags); in wb_inode_writeback_end()
2906 if (test_bit(WB_registered, &wb->state)) in wb_inode_writeback_end()
2907 queue_delayed_work(bdi_wq, &wb->bw_dwork, BANDWIDTH_INTERVAL); in wb_inode_writeback_end()
2908 spin_unlock_irqrestore(&wb->work_lock, flags); in wb_inode_writeback_end()
2929 struct bdi_writeback *wb = inode_to_wb(inode); in __folio_end_writeback() local
2931 wb_stat_mod(wb, WB_WRITEBACK, -nr); in __folio_end_writeback()
2932 __wb_writeout_add(wb, nr); in __folio_end_writeback()
2935 wb_inode_writeback_end(wb); in __folio_end_writeback()
2981 struct bdi_writeback *wb = inode_to_wb(inode); in __folio_start_writeback() local
2983 wb_stat_mod(wb, WB_WRITEBACK, nr); in __folio_start_writeback()
2985 wb_inode_writeback_start(wb); in __folio_start_writeback()