diff options
Diffstat (limited to 'include/linux/hugetlb.h')
| -rw-r--r-- | include/linux/hugetlb.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 58b53d08f2c8..e46f6b49eb38 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -70,6 +70,7 @@ struct resv_map { long adds_in_progress; struct list_head region_cache; long region_cache_count; + struct rw_semaphore rw_sema; #ifdef CONFIG_CGROUP_HUGETLB /* * On private mappings, the counter to uncharge reservations is stored @@ -879,6 +880,11 @@ static inline bool hugepage_migration_supported(struct hstate *h) return arch_hugetlb_migration_supported(h); } +static inline bool __vma_private_lock(struct vm_area_struct *vma) +{ + return (!(vma->vm_flags & VM_MAYSHARE)) && vma->vm_private_data; +} + /* * Movability check is different as compared to migration check. * It determines whether or not a huge page should be placed on |