From 939a91bfa02ae2f24243a6d933396c6a8d3421a6 Mon Sep 17 00:00:00 2001
From: Pengfei Li <lpf.vector@gmail.com>
Date: Mon, 23 Sep 2019 15:36:58 -0700
Subject: [PATCH] mm/compaction.c: remove unnecessary zone parameter in
isolate_migratepages()
References: bnc#1155780 (VM/FS functional and performance backports)
Patch-mainline: v5.4-rc1
Git-commit: 32aaf0553df99cc4314f6e9f43216cd83afc6c20
Like commit 40cacbcb3240 ("mm, compaction: remove unnecessary zone
parameter in some instances"), remove unnecessary zone parameter.
No functional change.
Link: http://lkml.kernel.org/r/20190806151616.21107-1-lpf.vector@gmail.com
Signed-off-by: Pengfei Li <lpf.vector@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Qian Cai <cai@lca.pw>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
---
mm/compaction.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/mm/compaction.c b/mm/compaction.c
index 5ab9c2b22693..fc02493e7d92 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1738,8 +1738,7 @@ static unsigned long fast_find_migrateblock(struct compact_control *cc)
* starting at the block pointed to by the migrate scanner pfn within
* compact_control.
*/
-static isolate_migrate_t isolate_migratepages(struct zone *zone,
- struct compact_control *cc)
+static isolate_migrate_t isolate_migratepages(struct compact_control *cc)
{
unsigned long block_start_pfn;
unsigned long block_end_pfn;
@@ -1757,8 +1756,8 @@ static isolate_migrate_t isolate_migratepages(struct zone *zone,
*/
low_pfn = fast_find_migrateblock(cc);
block_start_pfn = pageblock_start_pfn(low_pfn);
- if (block_start_pfn < zone->zone_start_pfn)
- block_start_pfn = zone->zone_start_pfn;
+ if (block_start_pfn < cc->zone->zone_start_pfn)
+ block_start_pfn = cc->zone->zone_start_pfn;
/*
* fast_find_migrateblock marks a pageblock skipped so to avoid
@@ -1788,8 +1787,8 @@ static isolate_migrate_t isolate_migratepages(struct zone *zone,
if (!(low_pfn % (SWAP_CLUSTER_MAX * pageblock_nr_pages)))
cond_resched();
- page = pageblock_pfn_to_page(block_start_pfn, block_end_pfn,
- zone);
+ page = pageblock_pfn_to_page(block_start_pfn,
+ block_end_pfn, cc->zone);
if (!page)
continue;
@@ -2170,7 +2169,7 @@ compact_zone(struct compact_control *cc, struct capture_control *capc)
cc->rescan = true;
}
- switch (isolate_migratepages(cc->zone, cc)) {
+ switch (isolate_migratepages(cc)) {
case ISOLATE_ABORT:
ret = COMPACT_CONTENDED;
putback_movable_pages(&cc->migratepages);