diff options
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index eda3c2244f30..e721d252c5d2 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1229,7 +1229,7 @@ static inline bool is_via_compact_memory(int order) return order == -1; } -static int __compact_finished(struct zone *zone, struct compact_control *cc, +static enum compact_result __compact_finished(struct zone *zone, struct compact_control *cc, const int migratetype) { unsigned int order; @@ -1292,8 +1292,9 @@ static int __compact_finished(struct zone *zone, struct compact_control *cc, return COMPACT_NO_SUITABLE_PAGE; } -static int 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, + const int migratetype) { int ret; @@ -1312,7 +1313,7 @@ static int compact_finished(struct zone *zone, struct compact_control *cc, * COMPACT_PARTIAL - If the allocation would succeed without compaction * COMPACT_CONTINUE - If compaction should run now */ -static unsigned long __compaction_suitable(struct zone *zone, int order, +static enum compact_result __compaction_suitable(struct zone *zone, int order, unsigned int alloc_flags, int classzone_idx) { @@ -1358,11 +1359,11 @@ static unsigned long __compaction_suitable(struct zone *zone, int order, return COMPACT_CONTINUE; } -unsigned long compaction_suitable(struct zone *zone, int order, +enum compact_result compaction_suitable(struct zone *zone, int order, unsigned int alloc_flags, int classzone_idx) { - unsigned long ret; + enum compact_result ret; ret = __compaction_suitable(zone, order, alloc_flags, classzone_idx); trace_mm_compaction_suitable(zone, order, ret); @@ -1372,9 +1373,9 @@ unsigned long compaction_suitable(struct zone *zone, int order, return ret; } -static int compact_zone(struct zone *zone, struct compact_control *cc) +static enum compact_result compact_zone(struct zone *zone, struct compact_control *cc) { - int ret; + 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); @@ -1530,11 +1531,11 @@ out: return ret; } -static unsigned long compact_zone_order(struct zone *zone, int order, +static enum compact_result compact_zone_order(struct zone *zone, int order, gfp_t gfp_mask, enum migrate_mode mode, int *contended, unsigned int alloc_flags, int classzone_idx) { - unsigned long ret; + enum compact_result ret; struct compact_control cc = { .nr_freepages = 0, .nr_migratepages = 0, @@ -1572,7 +1573,7 @@ int sysctl_extfrag_threshold = 500; * * This is the main entry point for direct page compaction. */ -unsigned long try_to_compact_pages(gfp_t gfp_mask, unsigned int order, +enum compact_result try_to_compact_pages(gfp_t gfp_mask, unsigned int order, unsigned int alloc_flags, const struct alloc_context *ac, enum migrate_mode mode, int *contended) { @@ -1580,7 +1581,7 @@ unsigned long try_to_compact_pages(gfp_t gfp_mask, unsigned int order, int may_perform_io = gfp_mask & __GFP_IO; struct zoneref *z; struct zone *zone; - int rc = COMPACT_DEFERRED; + enum compact_result rc = COMPACT_DEFERRED; int all_zones_contended = COMPACT_CONTENDED_LOCK; /* init for &= op */ *contended = COMPACT_CONTENDED_NONE; @@ -1594,7 +1595,7 @@ unsigned long try_to_compact_pages(gfp_t gfp_mask, unsigned int order, /* Compact each zone in the list */ for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) { - int status; + enum compact_result status; int zone_contended; if (compaction_deferred(zone, order)) |