diff options
Diffstat (limited to 'include/linux/compaction.h')
| -rw-r--r-- | include/linux/compaction.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/include/linux/compaction.h b/include/linux/compaction.h index ef658147e4e8..6ecb6dc2f303 100644 --- a/include/linux/compaction.h +++ b/include/linux/compaction.h @@ -22,8 +22,9 @@ extern int sysctl_extfrag_handler(struct ctl_table *table, int write, extern int fragmentation_index(struct zone *zone, unsigned int order); extern unsigned long try_to_compact_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *mask, - bool sync, bool *contended); + bool sync, bool *contended, struct page **page); extern int compact_pgdat(pg_data_t *pgdat, int order); +extern void reset_isolation_suitable(pg_data_t *pgdat); extern unsigned long compaction_suitable(struct zone *zone, int order); /* Do not skip compaction more than 64 times */ @@ -61,10 +62,20 @@ static inline bool compaction_deferred(struct zone *zone, int order) return zone->compact_considered < defer_limit; } +/* Returns true if restarting compaction after many failures */ +static inline bool compaction_restarting(struct zone *zone, int order) +{ + if (order < zone->compact_order_failed) + return false; + + return zone->compact_defer_shift == COMPACT_MAX_DEFER_SHIFT && + zone->compact_considered >= 1UL << zone->compact_defer_shift; +} + #else static inline unsigned long try_to_compact_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *nodemask, - bool sync, bool *contended) + bool sync, bool *contended, struct page **page) { return COMPACT_CONTINUE; } @@ -74,6 +85,10 @@ static inline int compact_pgdat(pg_data_t *pgdat, int order) return COMPACT_CONTINUE; } +static inline void reset_isolation_suitable(pg_data_t *pgdat) +{ +} + static inline unsigned long compaction_suitable(struct zone *zone, int order) { return COMPACT_SKIPPED; |