diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/compaction.h | 22 | ||||
| -rw-r--r-- | include/trace/events/compaction.h | 12 |
2 files changed, 19 insertions, 15 deletions
diff --git a/include/linux/compaction.h b/include/linux/compaction.h index 1a02dab16646..0980a6ce4436 100644 --- a/include/linux/compaction.h +++ b/include/linux/compaction.h @@ -1,6 +1,18 @@ #ifndef _LINUX_COMPACTION_H #define _LINUX_COMPACTION_H +/* + * Determines how hard direct compaction should try to succeed. + * Lower value means higher priority, analogically to reclaim priority. + */ +enum compact_priority { + COMPACT_PRIO_SYNC_LIGHT, + MIN_COMPACT_PRIORITY = COMPACT_PRIO_SYNC_LIGHT, + DEF_COMPACT_PRIORITY = COMPACT_PRIO_SYNC_LIGHT, + COMPACT_PRIO_ASYNC, + INIT_COMPACT_PRIORITY = COMPACT_PRIO_ASYNC +}; + /* Return values for compact_zone() and try_to_compact_pages() */ /* When adding new states, please adjust include/trace/events/compaction.h */ enum compact_result { @@ -66,7 +78,7 @@ extern int fragmentation_index(struct zone *zone, unsigned int order); extern 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); + enum compact_priority prio, int *contended); extern void compact_pgdat(pg_data_t *pgdat, int order); extern void reset_isolation_suitable(pg_data_t *pgdat); extern enum compact_result compaction_suitable(struct zone *zone, int order, @@ -151,14 +163,6 @@ extern void kcompactd_stop(int nid); extern void wakeup_kcompactd(pg_data_t *pgdat, int order, int classzone_idx); #else -static inline enum compact_result try_to_compact_pages(gfp_t gfp_mask, - unsigned int order, int alloc_flags, - const struct alloc_context *ac, - enum migrate_mode mode, int *contended) -{ - return COMPACT_CONTINUE; -} - static inline void compact_pgdat(pg_data_t *pgdat, int order) { } diff --git a/include/trace/events/compaction.h b/include/trace/events/compaction.h index 36e2d6fb1360..c2ba402ab256 100644 --- a/include/trace/events/compaction.h +++ b/include/trace/events/compaction.h @@ -226,26 +226,26 @@ TRACE_EVENT(mm_compaction_try_to_compact_pages, TP_PROTO( int order, gfp_t gfp_mask, - enum migrate_mode mode), + int prio), - TP_ARGS(order, gfp_mask, mode), + TP_ARGS(order, gfp_mask, prio), TP_STRUCT__entry( __field(int, order) __field(gfp_t, gfp_mask) - __field(enum migrate_mode, mode) + __field(int, prio) ), TP_fast_assign( __entry->order = order; __entry->gfp_mask = gfp_mask; - __entry->mode = mode; + __entry->prio = prio; ), - TP_printk("order=%d gfp_mask=0x%x mode=%d", + TP_printk("order=%d gfp_mask=0x%x priority=%d", __entry->order, __entry->gfp_mask, - (int)__entry->mode) + __entry->prio) ); DECLARE_EVENT_CLASS(mm_compaction_suitable_template, |