Re: [PATCH 12/12] mm: change the contract for free_pgtables(), update docs

On Mon, Sep 07, 2026 at 09:53:43AM -0700, Suren Baghdasaryan wrote:

On Tue, Sep 1, 2026 at 10:25 AM Lorenzo Stoakes (ARM) [off-list ref] wrote:

quoted

quoted

quoted

So, maybe something like:

 * Note that free_pgtables(), used after unampping detached vmas, or when
 * exiting the whoel mm, does not take a page table lock before freeing a page
 * table.
 *
 * As page table freeing itself is RCU-safe, page table readers can safely run
 * concurrently with page table teardown. However, writers cannot, as without
 * a lock nothing prevents concurrent teardown.
 */

Instead? What do you think?

s/whoel/whole/

Haha yup the inevitable typo...

Also s/unampping/unmapping please.

Ack will fix on respin! I am the typo master ;)

--
Cheers, Lorenzo