The patch titled
Subject: mm-kswapd-replace-kswapd-compaction-with-waking-up-kcompactd-fix
has been removed from the -mm tree. Its filename was
mm-kswapd-replace-kswapd-compaction-with-waking-up-kcompactd-fix.patch
This patch was dropped because an alternative patch was merged
------------------------------------------------------
From: Vlastimil Babka <vbabka@xxxxxxx>
Subject: mm-kswapd-replace-kswapd-compaction-with-waking-up-kcompactd-fix
Change zone_balanced() check in balance_pgdat() to consider only base
pages as that's the same what kswapd_shrink_zone() later does. So a zone
that would be selected due to lack of high-order pages would not be
reclaimed anyway, and just cause extra CPU churn.
Also remove unnecessary variable testorder in kswapd_shrink_zone().
Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
Reported-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff -puN mm/vmscan.c~mm-kswapd-replace-kswapd-compaction-with-waking-up-kcompactd-fix mm/vmscan.c
--- a/mm/vmscan.c~mm-kswapd-replace-kswapd-compaction-with-waking-up-kcompactd-fix
+++ a/mm/vmscan.c
@@ -3090,7 +3090,6 @@ static bool kswapd_shrink_zone(struct zo
int classzone_idx,
struct scan_control *sc)
{
- int testorder = sc->order;
unsigned long balance_gap;
bool lowmem_pressure;
@@ -3111,7 +3110,7 @@ static bool kswapd_shrink_zone(struct zo
* reclaim is necessary
*/
lowmem_pressure = (buffer_heads_over_limit && is_highmem(zone));
- if (!lowmem_pressure && zone_balanced(zone, testorder, false,
+ if (!lowmem_pressure && zone_balanced(zone, sc->order, false,
balance_gap, classzone_idx))
return true;
@@ -3126,7 +3125,7 @@ static bool kswapd_shrink_zone(struct zo
* waits.
*/
if (zone_reclaimable(zone) &&
- zone_balanced(zone, testorder, false, 0, classzone_idx)) {
+ zone_balanced(zone, sc->order, false, 0, classzone_idx)) {
clear_bit(ZONE_CONGESTED, &zone->flags);
clear_bit(ZONE_DIRTY, &zone->flags);
}
@@ -3207,7 +3206,7 @@ static int balance_pgdat(pg_data_t *pgda
break;
}
- if (!zone_balanced(zone, order, true, 0, 0)) {
+ if (!zone_balanced(zone, order, false, 0, 0)) {
end_zone = i;
break;
} else {
_
Patches currently in -mm which might be from vbabka@xxxxxxx are
tracepoints-move-trace_print_flags-definitions-to-tracepoint-defsh.patch
mm-tracing-make-show_gfp_flags-up-to-date.patch
tools-perf-make-gfp_compact_table-up-to-date.patch
mm-tracing-unify-mm-flags-handling-in-tracepoints-and-printk.patch
mm-printk-introduce-new-format-string-for-flags.patch
mm-printk-introduce-new-format-string-for-flags-fix.patch
mm-debug-replace-dump_flags-with-the-new-printk-formats.patch
mm-page_alloc-print-symbolic-gfp_flags-on-allocation-failure.patch
mm-oom-print-symbolic-gfp_flags-in-oom-warning.patch
mm-page_owner-print-migratetype-of-page-and-pageblock-symbolic-flags.patch
mm-page_owner-convert-page_owner_inited-to-static-key.patch
mm-page_owner-copy-page-owner-info-during-migration.patch
mm-page_owner-track-and-print-last-migrate-reason.patch
mm-page_owner-dump-page-owner-info-from-dump_page.patch
mm-debug-move-bad-flags-printing-to-bad_page.patch
mm-slb-print-gfp_flags-as-strings-in-slab_out_of_memory.patch
mm-kswapd-remove-bogus-check-of-balance_classzone_idx.patch
mm-compaction-introduce-kcompactd.patch
mm-compaction-introduce-kcompactd-fix-3.patch
mm-memory-hotplug-small-cleanup-in-online_pages.patch
mm-compaction-adapt-isolation_suitable-flushing-to-kcompactd.patch
mm-tracing-refresh-__def_vmaflag_names-fix.patch
mm-use-radix_tree_iter_retry-fix.patch
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