* Anthony Yznaga <anthony.yznaga@xxxxxxxxxx> [230829 20:43]:
> Fix insert_vm_struct() so that only accounted memory is unaccounted
> if vma_link() fails.
>
> Fixes: d4af56c5c7c6 ("mm: start tracking VMAs with maple tree")
> Signed-off-by: Anthony Yznaga <anthony.yznaga@xxxxxxxxxx>
Reviewed-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
> ---
> mm/mmap.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/mm/mmap.c b/mm/mmap.c
> index 514ced13c65c..f8c084017757 100644
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -3278,7 +3278,8 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
> }
>
> if (vma_link(mm, vma)) {
> - vm_unacct_memory(charged);
> + if (vma->vm_flags & VM_ACCOUNT)
> + vm_unacct_memory(charged);
> return -ENOMEM;
> }
>
> --
> 2.39.3
>
