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| author | David Rientjes <rientjes@google.com> | 2014-10-09 15:27:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-09 22:25:55 -0400 |
| commit | 6d7ce55940b6ecd463ca044ad241f0122d913293 (patch) | |
| tree | 9b085af7aca9c01fc7866bbf047f13b1771b3979 | |
| parent | 43e7a34d265e884b7cf34f9b05e6f2e0c05bf120 (diff) | |
| download | op-kernel-dev-6d7ce55940b6ecd463ca044ad241f0122d913293.zip op-kernel-dev-6d7ce55940b6ecd463ca044ad241f0122d913293.tar.gz | |
mm, compaction: pass gfp mask to compact_control
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 <rientjes@google.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/compaction.c | 12 | ||||
| -rw-r--r-- | mm/internal.h | 2 |
2 files changed, 8 insertions, 6 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 7c687c0..15163b4 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 |
