From: Liam R. Howlett <Liam.Howlett@oracle.com>
Date: Thu, 21 Apr 2022 22:01:11 +0000 (-0400)
Subject: convert munmap_sidetree to avoid prealloc
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=59af409ed30c03ba162c696b4b97d5a8db5a95ab;p=users%2Fjedix%2Flinux-maple.git

convert munmap_sidetree to avoid prealloc

Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
---

diff --git a/mm/mmap.c b/mm/mmap.c
index a642b4e3fc4f..6394d0134624 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2306,7 +2306,8 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
 static inline void munmap_sidetree(struct vm_area_struct *vma,
 				   struct ma_state *mas_detach)
 {
-	vma_mas_store(vma, mas_detach);
+	mas_set_range(mas_detach, vma->vm_start, vma->vm_end - 1);
+	mas_store_gfp(mas_detach, vma, GFP_KERNEL);
 	if (vma->vm_flags & VM_LOCKED)
 		vma->vm_mm->locked_vm -= vma_pages(vma);
 }