> Date: Tue, 26 Apr 2022 14:19:32 +0200
> From: Martin Pieuchot <[email protected]>
>
> I'd like to use a proper interface to add/remove pages on the
> active/inactive queues. This will help for lock assertions and help
> improving the existing LRU limitations.
>
> Diff below makes uvm_pageunwire() call uvm_pageactivate() instead of
> inserting the page itself.
>
> ok?
Yes, I don't think it is worth to optimize this.
> Index: uvm/uvm_page.c
> ===================================================================
> RCS file: /cvs/src/sys/uvm/uvm_page.c,v
> retrieving revision 1.163
> diff -u -p -r1.163 uvm_page.c
> --- uvm/uvm_page.c 12 Mar 2022 12:34:22 -0000 1.163
> +++ uvm/uvm_page.c 26 Apr 2022 12:13:59 -0000
> @@ -1279,9 +1279,7 @@ uvm_pageunwire(struct vm_page *pg)
>
> pg->wire_count--;
> if (pg->wire_count == 0) {
> - TAILQ_INSERT_TAIL(&uvm.page_active, pg, pageq);
> - uvmexp.active++;
> - atomic_setbits_int(&pg->pg_flags, PQ_ACTIVE);
> + uvm_pageactivate(pg);
> uvmexp.wired--;
> }
> }
>
>
