From: Vlastimil Babka <vbabka@xxxxxxx> Subject: 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@xxxxxxx Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx> Acked-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx> Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/compaction.c | 15 +++++++-------- mm/internal.h | 1 + 2 files changed, 8 insertions(+), 8 deletions(-) diff -puN mm/compaction.c~mm-compaction-add-migratetype-to-compact_control mm/compaction.c --- a/mm/compaction.c~mm-compaction-add-migratetype-to-compact_control +++ a/mm/compaction.c @@ -1279,10 +1279,11 @@ static inline bool is_via_compact_memory 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_fin } 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( 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( 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 -puN mm/internal.h~mm-compaction-add-migratetype-to-compact_control mm/internal.h --- a/mm/internal.h~mm-compaction-add-migratetype-to-compact_control +++ a/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 */ _ -- 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
