On 12.07.23 16:38, Kefeng Wang wrote:
Introduce the two helpers for general use.Signed-off-by: Kefeng Wang <wangkefeng.w...@huawei.com> --- include/linux/mm.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index 1462cf15badf..0bbeb31ac750 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -926,6 +926,18 @@ static inline bool vma_is_anonymous(struct vm_area_struct *vma) return !vma->vm_ops; }+static inline bool vma_is_heap(struct vm_area_struct *vma)+{ + return vma->vm_start <= vma->vm_mm->brk && + vma->vm_end >= vma->vm_mm->start_brk; +} + +static inline bool vma_is_stack(struct vm_area_struct *vma) +{ + return vma->vm_start <= vma->vm_mm->start_stack && + vma->vm_end >= vma->vm_mm->start_stack; +} + static inline bool vma_is_temporary_stack(struct vm_area_struct *vma) { int maybe_stack = vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP);
Looking at the comments in patch #3, should these functions be called vma_is_initial_heap / vma_is_initial_stack ? -- Cheers, David / dhildenb
