On Mon, 5 Dec 2022 19:23:17 +0000 Liam Howlett <liam.howlett@xxxxxxxxxx> wrote:
> Add more sanity checks to the VMA that do_brk_flags() will expand.
> Ensure the VMA matches basic merge requirements within the function
> before calling can_vma_merge_after().
I't unclear what's actually being fixed here.
Why do you feel we need the above changes?
> Drop the duplicate checks from vm_brk_flags() since they will be
> enforced later.
>
> Fixes: 2e7ce7d354f2 ("mm/mmap: change do_brk_flags() to expand existing VMA and add do_brk_munmap()")
Fixes in what way? Removing the duplicate checks?
