svn commit: r267783 - in user/attilio/rm_vmobj_cache/sys: sys vm

[Attilio Rao]

Author: attilio
Date: Mon Jun 23 09:35:13 2014
New Revision: 267783
URL: http://svnweb.freebsd.org/changeset/base/267783

Log:
  Add a new pagequeue, called "disposed".
  This is going to be used as an high-priority inactive queue, more or
  less, with specific constraint.
  
  It is going to give vm_page_advise() the ability to free some pages
  in steady way.

Modified:
  user/attilio/rm_vmobj_cache/sys/sys/vmmeter.h
  user/attilio/rm_vmobj_cache/sys/vm/vm_page.c
  user/attilio/rm_vmobj_cache/sys/vm/vm_page.h

Modified: user/attilio/rm_vmobj_cache/sys/sys/vmmeter.h
==============================================================================
--- user/attilio/rm_vmobj_cache/sys/sys/vmmeter.h	Mon Jun 23 08:40:56 2014	(r267782)
+++ user/attilio/rm_vmobj_cache/sys/sys/vmmeter.h	Mon Jun 23 09:35:13 2014	(r267783)
@@ -96,6 +96,7 @@ struct vmmeter {
 	u_int v_active_count;	/* (q) pages active */
 	u_int v_inactive_target; /* (c) pages desired inactive */
 	u_int v_inactive_count;	/* (q) pages inactive */
+	u_int v_disposed_count;	/* (q) pages disposed */
 	u_int v_cache_count;	/* (f) pages on cache queue */
 	u_int v_cache_min;	/* (c) min pages desired on cache queue */
 	u_int v_cache_max;	/* (c) max pages in cached obj (unused) */

Modified: user/attilio/rm_vmobj_cache/sys/vm/vm_page.c
==============================================================================
--- user/attilio/rm_vmobj_cache/sys/vm/vm_page.c	Mon Jun 23 08:40:56 2014	(r267782)
+++ user/attilio/rm_vmobj_cache/sys/vm/vm_page.c	Mon Jun 23 09:35:13 2014	(r267783)
@@ -259,6 +259,10 @@ vm_page_domain_init(struct vm_domain *vm
 	    "vm active pagequeue";
 	*__DECONST(int **, &vmd->vmd_pagequeues[PQ_ACTIVE].pq_vcnt) =
 	    &vm_cnt.v_active_count;
+	*__DECONST(char **, &vmd->vmd_pagequeues[PQ_DISPOSED].pq_name) =
+	    "vm disposed pagequeue";
+	*__DECONST(int **, &vmd->vmd_pagequeues[PQ_DISPOSED].pq_vcnt) =
+	    &vm_cnt.v_disposed_count;
 	vmd->vmd_page_count = 0;
 	vmd->vmd_free_count = 0;
 	vmd->vmd_segs = 0;
@@ -3165,10 +3169,11 @@ DB_SHOW_COMMAND(pageq, vm_page_print_pag
 	    vm_cnt.v_free_count, vm_cnt.v_cache_count);
 	for (dom = 0; dom < vm_ndomains; dom++) {
 		db_printf(
-	"dom %d page_cnt %d free %d pq_act %d pq_inact %d pass %d\n",
+"dom %d page_cnt %d free %d pq_disposed %d pq_act %d pq_inact %d pass %d\n",
 		    dom,
 		    vm_dom[dom].vmd_page_count,
 		    vm_dom[dom].vmd_free_count,
+		    vm_dom[dom].vmd_pagequeues[PQ_DISPOSED].pq_cnt,
 		    vm_dom[dom].vmd_pagequeues[PQ_ACTIVE].pq_cnt,
 		    vm_dom[dom].vmd_pagequeues[PQ_INACTIVE].pq_cnt,
 		    vm_dom[dom].vmd_pass);

Modified: user/attilio/rm_vmobj_cache/sys/vm/vm_page.h
==============================================================================
--- user/attilio/rm_vmobj_cache/sys/vm/vm_page.h	Mon Jun 23 08:40:56 2014	(r267782)
+++ user/attilio/rm_vmobj_cache/sys/vm/vm_page.h	Mon Jun 23 09:35:13 2014	(r267783)
@@ -206,7 +206,8 @@ struct vm_page {
 #define	PQ_NONE		255
 #define	PQ_INACTIVE	0
 #define	PQ_ACTIVE	1
-#define	PQ_COUNT	2
+#define	PQ_DISPOSED	2
+#define	PQ_COUNT	3
 
 TAILQ_HEAD(pglist, vm_page);
 SLIST_HEAD(spglist, vm_page);