diff options
Diffstat (limited to 'include/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 0aa4445b0b8..dd8487f0442 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -163,6 +163,17 @@ static inline int is_unevictable_lru(enum lru_list l) #endif } +enum zone_watermarks { + WMARK_MIN, + WMARK_LOW, + WMARK_HIGH, + NR_WMARK +}; + +#define min_wmark_pages(z) (z->watermark[WMARK_MIN]) +#define low_wmark_pages(z) (z->watermark[WMARK_LOW]) +#define high_wmark_pages(z) (z->watermark[WMARK_HIGH]) + struct per_cpu_pages { int count; /* number of pages in the list */ int high; /* high watermark, emptying needed */ @@ -275,7 +286,10 @@ struct zone_reclaim_stat { struct zone { /* Fields commonly accessed by the page allocator */ - unsigned long pages_min, pages_low, pages_high; + + /* zone watermarks, access with *_wmark_pages(zone) macros */ + unsigned long watermark[NR_WMARK]; + /* * We don't know if the memory that we're going to allocate will be freeable * or/and it will be released eventually, so to avoid totally wasting several |