Subject: Re: [PATCH net-next 2/3] mm: vmalloc: export find_vm_area()

From: Christoph Hellwig <[email-masked]>
Date: Fri, 23 Jan 2026 06:44:52 -0800

On Fri, Jan 23, 2026 at 04:23:48PM +0800, D. Wythe wrote:
> find_vm_area() provides a way to find the vm_struct associated with a
> virtual address. Export this symbol to modules so that modularized
> subsystems can perform lookups on vmalloc addresses.

No, they have absolutely no business doing that.  This functionality
is very intentionally kept private.