On 12.07.23 16:38, Kefeng Wang wrote:
Introduce the two helpers for general use.
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
---
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
