diff options
| -rw-r--r-- | mm/compaction.c | 35 |
1 files changed, 18 insertions, 17 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 86d4d0bbfc7c..b918bdb28aed 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1379,7 +1379,6 @@ static enum compact_result __compaction_suitable(struct zone *zone, int order, int classzone_idx, unsigned long wmark_target) { - int fragindex; unsigned long watermark; if (is_via_compact_memory(order)) @@ -1415,6 +1414,18 @@ static enum compact_result __compaction_suitable(struct zone *zone, int order, ALLOC_CMA, wmark_target)) return COMPACT_SKIPPED; + return COMPACT_CONTINUE; +} + +enum compact_result compaction_suitable(struct zone *zone, int order, + unsigned int alloc_flags, + int classzone_idx) +{ + enum compact_result ret; + int fragindex; + + ret = __compaction_suitable(zone, order, alloc_flags, classzone_idx, + zone_page_state(zone, NR_FREE_PAGES)); /* * fragmentation index determines if allocation failures are due to * low memory or external fragmentation @@ -1426,21 +1437,12 @@ static enum compact_result __compaction_suitable(struct zone *zone, int order, * * Only compact if a failure would be due to fragmentation. */ - fragindex = fragmentation_index(zone, order); - if (fragindex >= 0 && fragindex <= sysctl_extfrag_threshold) - return COMPACT_NOT_SUITABLE_ZONE; - - return COMPACT_CONTINUE; -} - -enum compact_result compaction_suitable(struct zone *zone, int order, - unsigned int alloc_flags, - int classzone_idx) -{ - enum compact_result ret; + if (ret == COMPACT_CONTINUE) { + fragindex = fragmentation_index(zone, order); + if (fragindex >= 0 && fragindex <= sysctl_extfrag_threshold) + ret = COMPACT_NOT_SUITABLE_ZONE; + } - ret = __compaction_suitable(zone, order, alloc_flags, classzone_idx, - zone_page_state(zone, NR_FREE_PAGES)); trace_mm_compaction_suitable(zone, order, ret); if (ret == COMPACT_NOT_SUITABLE_ZONE) ret = COMPACT_SKIPPED; @@ -1473,8 +1475,7 @@ bool compaction_zonelist_suitable(struct alloc_context *ac, int order, available += zone_page_state_snapshot(zone, NR_FREE_PAGES); compact_result = __compaction_suitable(zone, order, alloc_flags, ac_classzone_idx(ac), available); - if (compact_result != COMPACT_SKIPPED && - compact_result != COMPACT_NOT_SUITABLE_ZONE) + if (compact_result != COMPACT_SKIPPED) return true; } |