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authorVlastimil Babka <vbabka@suse.cz>2017-05-08 15:54:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-08 17:15:10 -0700
commitd39773a0622c267fef3f79e3b1f0e7bdbad8a1a8 (patch)
tree7f0ab96259974852750bb25c51f2d8552f0de08d
parentb682debd97153706ffbe2fe3f8ec30a7ee11f9e1 (diff)
mm, compaction: add migratetype to compact_control
Preparation patch. We are going to need migratetype at lower layers than compact_zone() and compact_finished(). Link: http://lkml.kernel.org/r/20170307131545.28577-7-vbabka@suse.cz Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/compaction.c15
-rw-r--r--mm/internal.h1
2 files changed, 8 insertions, 8 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index a20876e37648..365b3c8ae943 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1279,10 +1279,11 @@ static inline bool is_via_compact_memory(int order)
return order == -1;
}
-static enum compact_result __compact_finished(struct zone *zone, struct compact_control *cc,
- const int migratetype)
+static enum compact_result __compact_finished(struct zone *zone,
+ struct compact_control *cc)
{
unsigned int order;
+ const int migratetype = cc->migratetype;
if (cc->contended || fatal_signal_pending(current))
return COMPACT_CONTENDED;
@@ -1338,12 +1339,11 @@ static enum compact_result __compact_finished(struct zone *zone, struct compact_
}
static enum compact_result compact_finished(struct zone *zone,
- struct compact_control *cc,
- const int migratetype)
+ struct compact_control *cc)
{
int ret;
- ret = __compact_finished(zone, cc, migratetype);
+ ret = __compact_finished(zone, cc);
trace_mm_compaction_finished(zone, cc->order, ret);
if (ret == COMPACT_NO_SUITABLE_PAGE)
ret = COMPACT_CONTINUE;
@@ -1476,9 +1476,9 @@ static enum compact_result compact_zone(struct zone *zone, struct compact_contro
enum compact_result 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;
+ cc->migratetype = gfpflags_to_migratetype(cc->gfp_mask);
ret = compaction_suitable(zone, cc->order, cc->alloc_flags,
cc->classzone_idx);
/* Compaction is likely to fail */
@@ -1528,8 +1528,7 @@ static enum compact_result compact_zone(struct zone *zone, struct compact_contro
migrate_prep_local();
- while ((ret = compact_finished(zone, cc, migratetype)) ==
- COMPACT_CONTINUE) {
+ while ((ret = compact_finished(zone, cc)) == COMPACT_CONTINUE) {
int err;
switch (isolate_migratepages(zone, cc)) {
diff --git a/mm/internal.h b/mm/internal.h
index 004471b72977..e7e709fd3043 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -193,6 +193,7 @@ struct compact_control {
unsigned long last_migrated_pfn;/* Not yet flushed page being freed */
const gfp_t gfp_mask; /* gfp mask of a direct compactor */
int order; /* order a direct compactor needs */
+ int migratetype; /* migratetype of direct compactor */
const unsigned int alloc_flags; /* alloc flags of a direct compactor */
const int classzone_idx; /* zone index of a direct compactor */
enum migrate_mode mode; /* Async or sync migration mode */