Lines Matching refs:wb
129 struct bdi_writeback *wb; member
153 #define GDTC_INIT(__wb) .wb = (__wb), \
159 #define MDTC_INIT(__wb, __gdtc) .wb = (__wb), \
179 static struct fprop_local_percpu *wb_memcg_completions(struct bdi_writeback *wb) in wb_memcg_completions() argument
181 return &wb->memcg_completions; in wb_memcg_completions()
184 static void wb_min_max_ratio(struct bdi_writeback *wb, in wb_min_max_ratio() argument
187 unsigned long this_bw = READ_ONCE(wb->avg_write_bandwidth); in wb_min_max_ratio()
188 unsigned long tot_bw = atomic_long_read(&wb->bdi->tot_write_bandwidth); in wb_min_max_ratio()
189 unsigned long long min = wb->bdi->min_ratio; in wb_min_max_ratio()
190 unsigned long long max = wb->bdi->max_ratio; in wb_min_max_ratio()
213 #define GDTC_INIT(__wb) .wb = (__wb), \
233 static struct fprop_local_percpu *wb_memcg_completions(struct bdi_writeback *wb) in wb_memcg_completions() argument
238 static void wb_min_max_ratio(struct bdi_writeback *wb, in wb_min_max_ratio() argument
241 *minp = wb->bdi->min_ratio; in wb_min_max_ratio()
242 *maxp = wb->bdi->max_ratio; in wb_min_max_ratio()
601 static inline void __wb_writeout_add(struct bdi_writeback *wb, long nr) in __wb_writeout_add() argument
605 wb_stat_mod(wb, WB_WRITTEN, nr); in __wb_writeout_add()
606 wb_domain_writeout_add(&global_wb_domain, &wb->completions, in __wb_writeout_add()
607 wb->bdi->max_prop_frac, nr); in __wb_writeout_add()
609 cgdom = mem_cgroup_wb_domain(wb); in __wb_writeout_add()
611 wb_domain_writeout_add(cgdom, wb_memcg_completions(wb), in __wb_writeout_add()
612 wb->bdi->max_prop_frac, nr); in __wb_writeout_add()
615 void wb_writeout_inc(struct bdi_writeback *wb) in wb_writeout_inc() argument
620 __wb_writeout_add(wb, 1); in wb_writeout_inc()
901 wb_min_max_ratio(dtc->wb, &wb_min_ratio, &wb_max_ratio); in __wb_calc_thresh()
910 unsigned long wb_calc_thresh(struct bdi_writeback *wb, unsigned long thresh) in wb_calc_thresh() argument
912 struct dirty_throttle_control gdtc = { GDTC_INIT(wb), in wb_calc_thresh()
1025 struct bdi_writeback *wb = dtc->wb; in wb_position_ratio() local
1026 unsigned long write_bw = READ_ONCE(wb->avg_write_bandwidth); in wb_position_ratio()
1075 if (unlikely(wb->bdi->capabilities & BDI_CAP_STRICTLIMIT)) { in wb_position_ratio()
1202 static void wb_update_write_bandwidth(struct bdi_writeback *wb, in wb_update_write_bandwidth() argument
1207 unsigned long avg = wb->avg_write_bandwidth; in wb_update_write_bandwidth()
1208 unsigned long old = wb->write_bandwidth; in wb_update_write_bandwidth()
1221 bw = written - min(written, wb->written_stamp); in wb_update_write_bandwidth()
1228 bw += (u64)wb->write_bandwidth * (period - elapsed); in wb_update_write_bandwidth()
1243 if (wb_has_dirty_io(wb)) { in wb_update_write_bandwidth()
1244 long delta = avg - wb->avg_write_bandwidth; in wb_update_write_bandwidth()
1246 &wb->bdi->tot_write_bandwidth) <= 0); in wb_update_write_bandwidth()
1248 wb->write_bandwidth = bw; in wb_update_write_bandwidth()
1249 WRITE_ONCE(wb->avg_write_bandwidth, avg); in wb_update_write_bandwidth()
1310 struct bdi_writeback *wb = dtc->wb; in wb_update_dirty_ratelimit() local
1315 unsigned long write_bw = wb->avg_write_bandwidth; in wb_update_dirty_ratelimit()
1316 unsigned long dirty_ratelimit = wb->dirty_ratelimit; in wb_update_dirty_ratelimit()
1328 dirty_rate = (dirtied - wb->dirtied_stamp) * HZ / elapsed; in wb_update_dirty_ratelimit()
1422 if (unlikely(wb->bdi->capabilities & BDI_CAP_STRICTLIMIT)) { in wb_update_dirty_ratelimit()
1431 x = min3(wb->balanced_dirty_ratelimit, in wb_update_dirty_ratelimit()
1436 x = max3(wb->balanced_dirty_ratelimit, in wb_update_dirty_ratelimit()
1458 WRITE_ONCE(wb->dirty_ratelimit, max(dirty_ratelimit, 1UL)); in wb_update_dirty_ratelimit()
1459 wb->balanced_dirty_ratelimit = balanced_dirty_ratelimit; in wb_update_dirty_ratelimit()
1461 trace_bdi_dirty_ratelimit(wb, dirty_rate, task_ratelimit); in wb_update_dirty_ratelimit()
1468 struct bdi_writeback *wb = gdtc->wb; in __wb_update_bandwidth() local
1474 spin_lock(&wb->list_lock); in __wb_update_bandwidth()
1482 elapsed = max(now - wb->bw_time_stamp, 1UL); in __wb_update_bandwidth()
1483 dirtied = percpu_counter_read(&wb->stat[WB_DIRTIED]); in __wb_update_bandwidth()
1484 written = percpu_counter_read(&wb->stat[WB_WRITTEN]); in __wb_update_bandwidth()
1499 wb_update_write_bandwidth(wb, elapsed, written); in __wb_update_bandwidth()
1501 wb->dirtied_stamp = dirtied; in __wb_update_bandwidth()
1502 wb->written_stamp = written; in __wb_update_bandwidth()
1503 WRITE_ONCE(wb->bw_time_stamp, now); in __wb_update_bandwidth()
1504 spin_unlock(&wb->list_lock); in __wb_update_bandwidth()
1507 void wb_update_bandwidth(struct bdi_writeback *wb) in wb_update_bandwidth() argument
1509 struct dirty_throttle_control gdtc = { GDTC_INIT(wb) }; in wb_update_bandwidth()
1517 static void wb_bandwidth_estimate_start(struct bdi_writeback *wb) in wb_bandwidth_estimate_start() argument
1520 unsigned long elapsed = now - READ_ONCE(wb->bw_time_stamp); in wb_bandwidth_estimate_start()
1523 !atomic_read(&wb->writeback_inodes)) { in wb_bandwidth_estimate_start()
1524 spin_lock(&wb->list_lock); in wb_bandwidth_estimate_start()
1525 wb->dirtied_stamp = wb_stat(wb, WB_DIRTIED); in wb_bandwidth_estimate_start()
1526 wb->written_stamp = wb_stat(wb, WB_WRITTEN); in wb_bandwidth_estimate_start()
1527 WRITE_ONCE(wb->bw_time_stamp, now); in wb_bandwidth_estimate_start()
1528 spin_unlock(&wb->list_lock); in wb_bandwidth_estimate_start()
1549 static unsigned long wb_max_pause(struct bdi_writeback *wb, in wb_max_pause() argument
1552 unsigned long bw = READ_ONCE(wb->avg_write_bandwidth); in wb_max_pause()
1568 static long wb_min_pause(struct bdi_writeback *wb, in wb_min_pause() argument
1574 long hi = ilog2(READ_ONCE(wb->avg_write_bandwidth)); in wb_min_pause()
1575 long lo = ilog2(READ_ONCE(wb->dirty_ratelimit)); in wb_min_pause()
1645 struct bdi_writeback *wb = dtc->wb; in wb_dirty_limits() local
1676 wb_reclaimable = wb_stat_sum(wb, WB_RECLAIMABLE); in wb_dirty_limits()
1677 dtc->wb_dirty = wb_reclaimable + wb_stat_sum(wb, WB_WRITEBACK); in wb_dirty_limits()
1679 wb_reclaimable = wb_stat(wb, WB_RECLAIMABLE); in wb_dirty_limits()
1680 dtc->wb_dirty = wb_reclaimable + wb_stat(wb, WB_WRITEBACK); in wb_dirty_limits()
1691 static int balance_dirty_pages(struct bdi_writeback *wb, in balance_dirty_pages() argument
1694 struct dirty_throttle_control gdtc_stor = { GDTC_INIT(wb) }; in balance_dirty_pages()
1695 struct dirty_throttle_control mdtc_stor = { MDTC_INIT(wb, &gdtc_stor) }; in balance_dirty_pages()
1709 struct backing_dev_info *bdi = wb->bdi; in balance_dirty_pages()
1746 mem_cgroup_wb_stats(wb, &filepages, &headroom, in balance_dirty_pages()
1775 !writeback_in_progress(wb)) in balance_dirty_pages()
1776 wb_start_background_writeback(wb); in balance_dirty_pages()
1809 if (unlikely(!writeback_in_progress(wb))) in balance_dirty_pages()
1810 wb_start_background_writeback(wb); in balance_dirty_pages()
1812 mem_cgroup_flush_foreign(wb); in balance_dirty_pages()
1867 if (dirty_exceeded != wb->dirty_exceeded) in balance_dirty_pages()
1868 wb->dirty_exceeded = dirty_exceeded; in balance_dirty_pages()
1870 if (time_is_before_jiffies(READ_ONCE(wb->bw_time_stamp) + in balance_dirty_pages()
1875 dirty_ratelimit = READ_ONCE(wb->dirty_ratelimit); in balance_dirty_pages()
1878 max_pause = wb_max_pause(wb, sdtc->wb_dirty); in balance_dirty_pages()
1879 min_pause = wb_min_pause(wb, max_pause, in balance_dirty_pages()
1900 trace_balance_dirty_pages(wb, in balance_dirty_pages()
1929 trace_balance_dirty_pages(wb, in balance_dirty_pages()
2019 struct bdi_writeback *wb = NULL; in balance_dirty_pages_ratelimited_flags() local
2028 wb = wb_get_create_current(bdi, GFP_KERNEL); in balance_dirty_pages_ratelimited_flags()
2029 if (!wb) in balance_dirty_pages_ratelimited_flags()
2030 wb = &bdi->wb; in balance_dirty_pages_ratelimited_flags()
2033 if (wb->dirty_exceeded) in balance_dirty_pages_ratelimited_flags()
2065 ret = balance_dirty_pages(wb, current->nr_dirtied, flags); in balance_dirty_pages_ratelimited_flags()
2067 wb_put(wb); in balance_dirty_pages_ratelimited_flags()
2099 bool wb_over_bg_thresh(struct bdi_writeback *wb) in wb_over_bg_thresh() argument
2101 struct dirty_throttle_control gdtc_stor = { GDTC_INIT(wb) }; in wb_over_bg_thresh()
2102 struct dirty_throttle_control mdtc_stor = { MDTC_INIT(wb, &gdtc_stor) }; in wb_over_bg_thresh()
2120 thresh = wb_calc_thresh(gdtc->wb, gdtc->bg_thresh); in wb_over_bg_thresh()
2122 reclaimable = wb_stat_sum(wb, WB_RECLAIMABLE); in wb_over_bg_thresh()
2124 reclaimable = wb_stat(wb, WB_RECLAIMABLE); in wb_over_bg_thresh()
2132 mem_cgroup_wb_stats(wb, &filepages, &headroom, &mdtc->dirty, in wb_over_bg_thresh()
2140 thresh = wb_calc_thresh(mdtc->wb, mdtc->bg_thresh); in wb_over_bg_thresh()
2142 reclaimable = wb_stat_sum(wb, WB_RECLAIMABLE); in wb_over_bg_thresh()
2144 reclaimable = wb_stat(wb, WB_RECLAIMABLE); in wb_over_bg_thresh()
2567 struct bdi_writeback *wb; in do_writepages() local
2571 wb = inode_to_wb_wbc(mapping->host, wbc); in do_writepages()
2572 wb_bandwidth_estimate_start(wb); in do_writepages()
2604 if (time_is_before_jiffies(READ_ONCE(wb->bw_time_stamp) + in do_writepages()
2606 wb_update_bandwidth(wb); in do_writepages()
2636 struct bdi_writeback *wb; in folio_account_dirtied() local
2640 wb = inode_to_wb(inode); in folio_account_dirtied()
2645 wb_stat_mod(wb, WB_RECLAIMABLE, nr); in folio_account_dirtied()
2646 wb_stat_mod(wb, WB_DIRTIED, nr); in folio_account_dirtied()
2651 mem_cgroup_track_foreign_dirty(folio, wb); in folio_account_dirtied()
2660 void folio_account_cleaned(struct folio *folio, struct bdi_writeback *wb) in folio_account_cleaned() argument
2666 wb_stat_mod(wb, WB_RECLAIMABLE, -nr); in folio_account_cleaned()
2759 struct bdi_writeback *wb; in folio_redirty_for_writepage() local
2762 wb = unlocked_inode_to_wb_begin(inode, &cookie); in folio_redirty_for_writepage()
2765 wb_stat_mod(wb, WB_DIRTIED, -nr); in folio_redirty_for_writepage()
2850 struct bdi_writeback *wb; in __folio_cancel_dirty() local
2854 wb = unlocked_inode_to_wb_begin(inode, &cookie); in __folio_cancel_dirty()
2857 folio_account_cleaned(folio, wb); in __folio_cancel_dirty()
2890 struct bdi_writeback *wb; in folio_clear_dirty_for_io() local
2928 wb = unlocked_inode_to_wb_begin(inode, &cookie); in folio_clear_dirty_for_io()
2933 wb_stat_mod(wb, WB_RECLAIMABLE, -nr); in folio_clear_dirty_for_io()
2943 static void wb_inode_writeback_start(struct bdi_writeback *wb) in wb_inode_writeback_start() argument
2945 atomic_inc(&wb->writeback_inodes); in wb_inode_writeback_start()
2948 static void wb_inode_writeback_end(struct bdi_writeback *wb) in wb_inode_writeback_end() argument
2951 atomic_dec(&wb->writeback_inodes); in wb_inode_writeback_end()
2959 spin_lock_irqsave(&wb->work_lock, flags); in wb_inode_writeback_end()
2960 if (test_bit(WB_registered, &wb->state)) in wb_inode_writeback_end()
2961 queue_delayed_work(bdi_wq, &wb->bw_dwork, BANDWIDTH_INTERVAL); in wb_inode_writeback_end()
2962 spin_unlock_irqrestore(&wb->work_lock, flags); in wb_inode_writeback_end()
2983 struct bdi_writeback *wb = inode_to_wb(inode); in __folio_end_writeback() local
2985 wb_stat_mod(wb, WB_WRITEBACK, -nr); in __folio_end_writeback()
2986 __wb_writeout_add(wb, nr); in __folio_end_writeback()
2989 wb_inode_writeback_end(wb); in __folio_end_writeback()
3035 struct bdi_writeback *wb = inode_to_wb(inode); in __folio_start_writeback() local
3037 wb_stat_mod(wb, WB_WRITEBACK, nr); in __folio_start_writeback()
3039 wb_inode_writeback_start(wb); in __folio_start_writeback()