diff options
Diffstat (limited to 'mm/highmem.c')
| -rw-r--r-- | mm/highmem.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/mm/highmem.c b/mm/highmem.c index bd48ba445dd4..b14771fb05ed 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -111,9 +111,6 @@ static inline wait_queue_head_t *get_pkmap_wait_queue_head(unsigned int color) } #endif -atomic_long_t _totalhigh_pages __read_mostly; -EXPORT_SYMBOL(_totalhigh_pages); - unsigned int __nr_free_highpages(void) { struct zone *zone; @@ -127,6 +124,20 @@ unsigned int __nr_free_highpages(void) return pages; } +unsigned long __totalhigh_pages(void) +{ + unsigned long pages = 0; + struct zone *zone; + + for_each_populated_zone(zone) { + if (is_highmem(zone)) + pages += zone_managed_pages(zone); + } + + return pages; +} +EXPORT_SYMBOL(__totalhigh_pages); + static int pkmap_count[LAST_PKMAP]; static __cacheline_aligned_in_smp DEFINE_SPINLOCK(kmap_lock); |