linux/mm/page-writeback.c

65  * After a CPU has dirtied this many pages, balance_dirty_pages_ratelimited
236  * are allowed to be actually dirtied.  Per individual zone, or
1339 				      unsigned long dirtied,
1358 	 * when dirty pages are truncated by userspace or re-dirtied by FS.
1360 	dirty_rate = (dirtied - wb->dirtied_stamp) * HZ / elapsed;
1496 	unsigned long dirtied;
1508 	dirtied = percpu_counter_read(&wb->stat[WB_DIRTIED]);
1513 		wb_update_dirty_ratelimit(gdtc, dirtied, elapsed);
1521 			wb_update_dirty_ratelimit(mdtc, dirtied, elapsed);
1526 	wb->dirtied_stamp = dirtied;
1558  * After a task dirtied this many pages, balance_dirty_pages_ratelimited()
2019  * However there is a worst case. If every task exit immediately when dirtied
2031  * @mapping: address_space which was dirtied.
2035  * which was newly dirtied.  The function will periodically check the system's
2070 	 * This prevents one CPU to accumulate too many dirtied pages without
2083 	 * Pick up the dirtied pages by the exited tasks. This avoids lots of
2106  * @mapping: address_space which was dirtied.
2109  * which was newly dirtied.  The function will periodically check the system's
2759  * a single buffer is being dirtied: we want to set the folio dirty in
2791  * Return: True if we redirtied the folio.  False if someone else dirtied
2829  * Return: True if the folio was newly dirtied, false if it was already dirty.