From: David Rientjes <rient...@google.com>
struct compact_control currently converts the gfp mask to a migratetype, but we
need the entire gfp mask in a follow-up patch.
Pass the entire gfp mask as part of struct compact_control.
Signed-off-by: David Rientjes <rient...@google.com>
Signed-off-by: Vlastimil Babka <vba...@suse.cz>
Reviewed-by: Zhang Yanfei <zhangyan...@cn.fujitsu.com>
Acked-by: Minchan Kim <minc...@kernel.org>
Acked-by: Mel Gorman <mgor...@suse.de>
Cc: Joonsoo Kim <iamjoonsoo....@lge.com>
Cc: Michal Nazarewicz <min...@mina86.com>
Cc: Naoya Horiguchi <n-horigu...@ah.jp.nec.com>
Cc: Christoph Lameter <c...@linux.com>
Cc: Rik van Riel <r...@redhat.com>
---
mm/compaction.c | 12 +++++++-----
mm/internal.h | 2 +-
2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/mm/compaction.c b/mm/compaction.c
index f5270ae..33095f8 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1032,8 +1032,8 @@ static isolate_migrate_t isolate_migratepages(struct zone
*zone,
return cc->nr_migratepages ? ISOLATE_SUCCESS : ISOLATE_NONE;
}
-static int compact_finished(struct zone *zone,
- struct compact_control *cc)
+static int compact_finished(struct zone *zone, struct compact_control *cc,
+ const int migratetype)
{
unsigned int order;
unsigned long watermark;
@@ -1079,7 +1079,7 @@ static int compact_finished(struct zone *zone,
struct free_area *area = &zone->free_area[order];
/* Job done if page is free of the right migratetype */
- if (!list_empty(&area->free_list[cc->migratetype]))
+ if (!list_empty(&area->free_list[migratetype]))
return COMPACT_PARTIAL;
/* Job done if allocation would set block type */
@@ -1145,6 +1145,7 @@ static int compact_zone(struct zone *zone, struct
compact_control *cc)
int ret;
unsigned long start_pfn = zone->zone_start_pfn;
unsigned long end_pfn = zone_end_pfn(zone);
+ const int migratetype = gfpflags_to_migratetype(cc->gfp_mask);
const bool sync = cc->mode != MIGRATE_ASYNC;
ret = compaction_suitable(zone, cc->order);
@@ -1187,7 +1188,8 @@ static int compact_zone(struct zone *zone, struct
compact_control *cc)
migrate_prep_local();
- while ((ret = compact_finished(zone, cc)) == COMPACT_CONTINUE) {
+ while ((ret = compact_finished(zone, cc, migratetype)) ==
+ COMPACT_CONTINUE) {
int err;
switch (isolate_migratepages(zone, cc)) {
@@ -1242,7 +1244,7 @@ static unsigned long compact_zone_order(struct zone
*zone, int order,
.nr_freepages = 0,
.nr_migratepages = 0,
.order = order,
- .migratetype = gfpflags_to_migratetype(gfp_mask),
+ .gfp_mask = gfp_mask,
.zone = zone,
.mode = mode,
};
diff --git a/mm/internal.h b/mm/internal.h
index 86ae964..8293040 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -142,7 +142,7 @@ struct compact_control {
bool finished_update_migrate;
int order; /* order a direct compactor needs */
- int migratetype; /* MOVABLE, RECLAIMABLE etc */
+ const gfp_t gfp_mask; /* gfp mask of a direct compactor */
struct zone *zone;
int contended; /* Signal need_sched() or lock
* contention detected during
--
1.8.4.5
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