diff options
Diffstat (limited to 'include/linux/compaction.h')
| -rw-r--r-- | include/linux/compaction.h | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/include/linux/compaction.h b/include/linux/compaction.h index 6ecb6dc2f30..01e3132820d 100644 --- a/include/linux/compaction.h +++ b/include/linux/compaction.h @@ -22,8 +22,8 @@ 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, struct page **page); -extern int compact_pgdat(pg_data_t *pgdat, int order); + enum migrate_mode mode, bool *contended); +extern void 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); @@ -62,6 +62,22 @@ static inline bool compaction_deferred(struct zone *zone, int order) return zone->compact_considered < defer_limit; } +/* + * Update defer tracking counters after successful compaction of given order, + * which means an allocation either succeeded (alloc_success == true) or is + * expected to succeed. + */ +static inline void compaction_defer_reset(struct zone *zone, int order, + bool alloc_success) +{ + if (alloc_success) { + zone->compact_considered = 0; + zone->compact_defer_shift = 0; + } + if (order >= zone->compact_order_failed) + zone->compact_order_failed = order + 1; +} + /* Returns true if restarting compaction after many failures */ static inline bool compaction_restarting(struct zone *zone, int order) { @@ -75,14 +91,13 @@ static inline bool compaction_restarting(struct zone *zone, int order) #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, struct page **page) + enum migrate_mode mode, bool *contended) { return COMPACT_CONTINUE; } -static inline int compact_pgdat(pg_data_t *pgdat, int order) +static inline void compact_pgdat(pg_data_t *pgdat, int order) { - return COMPACT_CONTINUE; } static inline void reset_isolation_suitable(pg_data_t *pgdat) |