diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-10-15 12:57:42 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-10-15 12:57:42 +0900 |
| commit | 2570a3719cd748899d9e9e8407eb0d9027df2a94 (patch) | |
| tree | 2eb2819e880060486d36665113e8da5c460383fc /include/linux/compaction.h | |
| parent | 6e87badd3f38e1a095d6e1b13828246c3e8486b5 (diff) | |
| parent | 8a2ceac6617a67d8a1ee4bd255743d577bde311a (diff) | |
Merge tag 'regmap/range' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into asoc-wm2200
regmap: Range API changes
A bunch of updates to the regmap range support, the most important ones
being to rename "n_ranges" to "num_ranges" for consistency and to allow
block writes to cross page boundaries, making things more transparent.
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; |