From: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx> Subject: mm/vmscan: update stale comments Update some comments that became stale since transiton from per-zone to per-node reclaim. Link: http://lkml.kernel.org/r/20180315164553.17856-2-aryabinin@xxxxxxxxxxxxx Signed-off-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx> Acked-by: Michal Hocko <mhocko@xxxxxxxx> Cc: Shakeel Butt <shakeelb@xxxxxxxxxx> Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> Cc: Tejun Heo <tj@xxxxxxxxxx> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/vmscan.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff -puN mm/vmscan.c~mm-vmscan-update-stale-comments mm/vmscan.c --- a/mm/vmscan.c~mm-vmscan-update-stale-comments +++ a/mm/vmscan.c @@ -926,7 +926,7 @@ static unsigned long shrink_page_list(st (PageSwapCache(page) && (sc->gfp_mask & __GFP_IO)); /* - * The number of dirty pages determines if a zone is marked + * The number of dirty pages determines if a node is marked * reclaim_congested which affects wait_iff_congested. kswapd * will stall and start writing pages if the tail of the LRU * is all dirty unqueued pages. @@ -1764,7 +1764,7 @@ shrink_inactive_list(unsigned long nr_to * as there is no guarantee the dirtying process is throttled in the * same way balance_dirty_pages() manages. * - * Once a zone is flagged ZONE_WRITEBACK, kswapd will count the number + * Once a node is flagged PGDAT_WRITEBACK, kswapd will count the number * of pages under pages flagged for immediate reclaim and stall if any * are encountered in the nr_immediate check below. */ @@ -1791,7 +1791,7 @@ shrink_inactive_list(unsigned long nr_to */ if (sane_reclaim(sc)) { /* - * Tag a zone as congested if all the dirty pages scanned were + * Tag a node as congested if all the dirty pages scanned were * backed by a congested BDI and wait_iff_congested will stall. */ if (stat.nr_dirty && stat.nr_dirty == stat.nr_congested) @@ -1812,7 +1812,7 @@ shrink_inactive_list(unsigned long nr_to } /* - * Stall direct reclaim for IO completions if underlying BDIs or zone + * Stall direct reclaim for IO completions if underlying BDIs and node * is congested. Allow kswapd to continue until it starts encountering * unqueued dirty pages or cycling through the LRU too quickly. */ @@ -3808,7 +3808,7 @@ static int __node_reclaim(struct pglist_ if (node_pagecache_reclaimable(pgdat) > pgdat->min_unmapped_pages) { /* - * Free memory by calling shrink zone with increasing + * Free memory by calling shrink node with increasing * priorities until we have enough memory freed. */ do { _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
