git: cfbf1da0deed - main - vm_page_unswappable: remove wrong assertion

From: Eric van Gyzen <vangyzen_at_FreeBSD.org>
Date: Wed, 09 Nov 2022 20:30:41 UTC
The branch main has been updated by vangyzen:

URL: https://cgit.FreeBSD.org/src/commit/?id=cfbf1da0deede6b82ac197471b6cd439706a2dea

commit cfbf1da0deede6b82ac197471b6cd439706a2dea
Author:     Anton Rang <rang@acm.org>
AuthorDate: 2022-11-09 20:13:01 +0000
Commit:     Eric van Gyzen <vangyzen@FreeBSD.org>
CommitDate: 2022-11-09 20:28:03 +0000

    vm_page_unswappable: remove wrong assertion
    
    markj says:
    
        ...the assertion is incorrect and should simply be removed.
        It has been racy since we removed the use of the page hash
        lock to synchronize wiring of pages.
    
    PR:             267621
    Reviewed by:    markj, Anton Rang <rang@acm.org>
    MFC after:      1 week
    Sponsored by:   Dell Inc.
    Differential Revision:  https://reviews.freebsd.org/D37320
---
 sys/vm/vm_page.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
index 8895b0f1da5a..4f97b84ee205 100644
--- a/sys/vm/vm_page.c
+++ b/sys/vm/vm_page.c
@@ -4200,7 +4200,8 @@ void
 vm_page_unswappable(vm_page_t m)
 {
 
-	KASSERT(!vm_page_wired(m) && (m->oflags & VPO_UNMANAGED) == 0,
+	VM_OBJECT_ASSERT_LOCKED(m->object);
+	KASSERT((m->oflags & VPO_UNMANAGED) == 0,
 	    ("page %p already unswappable", m));
 
 	vm_page_dequeue(m);