svn commit: r367844 - head/sys/vm

[Mark Johnston]

Author: markj
Date: Thu Nov 19 15:40:58 2020
New Revision: 367844
URL: https://svnweb.freebsd.org/changeset/base/367844

Log:
  Micro-optimize vm_page_pqbatch_submit()
  
  Avoid calling vm_page_domain() twice.
  
  Discussed with:	alc (in D27207)

Modified:
  head/sys/vm/vm_page.c

Modified: head/sys/vm/vm_page.c
==============================================================================
--- head/sys/vm/vm_page.c	Thu Nov 19 14:27:01 2020	(r367843)
+++ head/sys/vm/vm_page.c	Thu Nov 19 15:40:58 2020	(r367844)
@@ -3598,8 +3598,6 @@ vm_page_pqbatch_submit(vm_page_t m, uint8_t queue)
 	KASSERT(queue < PQ_COUNT, ("invalid queue %d", queue));
 
 	domain = vm_page_domain(m);
-	pq = &vm_pagequeue_domain(m)->vmd_pagequeues[queue];
-
 	critical_enter();
 	bq = DPCPU_PTR(pqbatch[domain][queue]);
 	if (vm_batchqueue_insert(bq, m)) {
@@ -3607,6 +3605,8 @@ vm_page_pqbatch_submit(vm_page_t m, uint8_t queue)
 		return;
 	}
 	critical_exit();
+
+	pq = &VM_DOMAIN(domain)->vmd_pagequeues[queue];
 	vm_pagequeue_lock(pq);
 	critical_enter();
 	bq = DPCPU_PTR(pqbatch[domain][queue]);