diff options
author | Ingo Molnar <mingo@kernel.org> | 2016-09-22 15:21:48 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2016-09-22 15:21:48 +0200 |
commit | 7cf0f1426a909ed36a8b349a4a975e0d68b5edad (patch) | |
tree | 0700bb26ceeefb95efc13c3247c04fe7207b509e /include/linux/mmzone.h | |
parent | c907420fdaec78b17f59a6011cb5f9d6051c6a35 (diff) | |
parent | 9bf6ffdabdd6e70a0b69d032a0aff091afe1773e (diff) |
Merge branch 'locking/urgent' into locking/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/mmzone.h')
-rw-r--r-- | include/linux/mmzone.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index d572b78b65e1..7f2ae99e5daf 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -828,9 +828,21 @@ unsigned long __init node_memmap_size_bytes(int, unsigned long, unsigned long); */ #define zone_idx(zone) ((zone) - (zone)->zone_pgdat->node_zones) -static inline int populated_zone(struct zone *zone) +/* + * Returns true if a zone has pages managed by the buddy allocator. + * All the reclaim decisions have to use this function rather than + * populated_zone(). If the whole zone is reserved then we can easily + * end up with populated_zone() && !managed_zone(). + */ +static inline bool managed_zone(struct zone *zone) +{ + return zone->managed_pages; +} + +/* Returns true if a zone has memory */ +static inline bool populated_zone(struct zone *zone) { - return (!!zone->present_pages); + return zone->present_pages; } extern int movable_zone; |