The patch titled
Subject: mm: introduce vma_is_stack() and vma_is_heap()
has been added to the -mm mm-unstable branch. Its filename is
mm-introduce-vma_is_stack-and-vma_is_heap.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-introduce-vma_is_stack-and-vma_is_heap.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Subject: mm: introduce vma_is_stack() and vma_is_heap()
Date: Wed, 12 Jul 2023 22:38:27 +0800
Patch series "mm: convert to vma_is_heap/stack()".
Add vma_is_stack() and vma_is_heap() helper and use them to simplify code.
This patch (of 5):
Introduce the two helpers for general use.
Link: https://lkml.kernel.org/r/20230712143831.120701-1-wangkefeng.wang@xxxxxxxxxx
Link: https://lkml.kernel.org/r/20230712143831.120701-2-wangkefeng.wang@xxxxxxxxxx
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: "Christian König" <christian.koenig@xxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxxx>
Cc: Eric Paris <eparis@xxxxxxxxxxxxxx>
Cc: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Cc: "Pan, Xinhui" <Xinhui.Pan@xxxxxxx>
Cc: Paul Moore <paul@xxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephen Smalley <stephen.smalley.work@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
--- a/include/linux/mm.h~mm-introduce-vma_is_stack-and-vma_is_heap
+++ a/include/linux/mm.h
@@ -842,6 +842,18 @@ static inline bool vma_is_anonymous(stru
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);
_
Patches currently in -mm which might be from wangkefeng.wang@xxxxxxxxxx are
mm-remove-arguments-of-show_mem.patch
mm-make-show_free_areas-static.patch
mm-introduce-vma_is_stack-and-vma_is_heap.patch
mm-use-vma_is_stack-and-vma_is_heap.patch
drm-amdkfd-use-vma_is_stack-and-vma_is_heap.patch
selinux-use-vma_is_stack-and-vma_is_heap.patch
perf-core-use-vma_is_stack-and-vma_is_heap.patch
