Re: [PATCH] mm: mmap: Merge vma after call_mmap() if possible

[Andrew Morton]

On Tue, 14 Jul 2020 11:07:44 +0800 linmiaohe <linmiaohe@xxxxxxxxxx> wrote:

> The vm_flags may be changed after call_mmap() because drivers may set some
> flags for their own purpose. As a result, we failed to merge the adjacent
> vma due to the different vm_flags as userspace can't pass in the same one.
> Try to merge vma after call_mmap() to fix this issue.

Which drivers do this?