Author: trociny
Date: Tue Jul 24 19:10:43 2012
New Revision: 238751
URL: http://svn.freebsd.org/changeset/base/238751
Log:
MFC r227316:
Add KVME_FLAG_SUPER and use it in sysctl_kern_proc_vmmap for marking
entries with superpages.
Submitted by: Mel Flynn <mel.flynn+fbsd.hack...@mailing.thruhere.net>
Reviewed by: alc, rwatson
Modified:
stable/8/sys/kern/kern_proc.c
stable/8/sys/sys/user.h
Directory Properties:
stable/8/sys/ (props changed)
Modified: stable/8/sys/kern/kern_proc.c
==============================================================================
--- stable/8/sys/kern/kern_proc.c Tue Jul 24 19:08:12 2012
(r238750)
+++ stable/8/sys/kern/kern_proc.c Tue Jul 24 19:10:43 2012
(r238751)
@@ -45,6 +45,7 @@ __FBSDID("$FreeBSD$");
#include <sys/limits.h>
#include <sys/lock.h>
#include <sys/malloc.h>
+#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/mutex.h>
#include <sys/proc.h>
@@ -74,6 +75,7 @@ __FBSDID("$FreeBSD$");
#include <vm/pmap.h>
#include <vm/vm_map.h>
#include <vm/vm_object.h>
+#include <vm/vm_page.h>
#include <vm/uma.h>
#ifdef COMPAT_FREEBSD32
@@ -1750,7 +1752,7 @@ sysctl_kern_proc_vmmap(SYSCTL_HANDLER_AR
entry = entry->next) {
vm_object_t obj, tobj, lobj;
vm_offset_t addr;
- int vfslocked;
+ int vfslocked, mincoreinfo;
if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
continue;
@@ -1768,8 +1770,11 @@ sysctl_kern_proc_vmmap(SYSCTL_HANDLER_AR
kve->kve_resident = 0;
addr = entry->start;
while (addr < entry->end) {
- if (pmap_extract(map->pmap, addr))
+ mincoreinfo = pmap_mincore(map->pmap, addr);
+ if (mincoreinfo & MINCORE_INCORE)
kve->kve_resident++;
+ if (mincoreinfo & MINCORE_SUPER)
+ kve->kve_flags |= KVME_FLAG_SUPER;
addr += PAGE_SIZE;
}
Modified: stable/8/sys/sys/user.h
==============================================================================
--- stable/8/sys/sys/user.h Tue Jul 24 19:08:12 2012 (r238750)
+++ stable/8/sys/sys/user.h Tue Jul 24 19:10:43 2012 (r238751)
@@ -338,6 +338,7 @@ struct kinfo_file {
#define KVME_FLAG_COW 0x00000001
#define KVME_FLAG_NEEDS_COPY 0x00000002
#define KVME_FLAG_NOCOREDUMP 0x00000004
+#define KVME_FLAG_SUPER 0x00000008
#if defined(__amd64__)
#define KINFO_OVMENTRY_SIZE 1168
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