diff options
Diffstat (limited to 'sys/vm/vm_meter.c')
| -rw-r--r-- | sys/vm/vm_meter.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/vm/vm_meter.c b/sys/vm/vm_meter.c index 8dcb9067bbb8a..0f4e1072368f1 100644 --- a/sys/vm/vm_meter.c +++ b/sys/vm/vm_meter.c @@ -145,8 +145,10 @@ vmtotal(SYSCTL_HANDLER_ARGS) /* * Mark all objects as inactive. */ + mtx_lock(&vm_mtx); TAILQ_FOREACH(object, &vm_object_list, object_list) vm_object_clear_flag(object, OBJ_ACTIVE); + mtx_unlock(&vm_mtx); /* * Calculate process statistics. */ @@ -197,6 +199,7 @@ vmtotal(SYSCTL_HANDLER_ARGS) * Note active objects. */ paging = 0; + mtx_lock(&vm_mtx); for (map = &p->p_vmspace->vm_map, entry = map->header.next; entry != &map->header; entry = entry->next) { if ((entry->eflags & MAP_ENTRY_IS_SUB_MAP) || @@ -205,6 +208,7 @@ vmtotal(SYSCTL_HANDLER_ARGS) vm_object_set_flag(entry->object.vm_object, OBJ_ACTIVE); paging |= entry->object.vm_object->paging_in_progress; } + mtx_unlock(&vm_mtx); if (paging) totalp->t_pw++; } @@ -212,6 +216,7 @@ vmtotal(SYSCTL_HANDLER_ARGS) /* * Calculate object memory usage statistics. */ + mtx_lock(&vm_mtx); TAILQ_FOREACH(object, &vm_object_list, object_list) { /* * devices, like /dev/mem, will badly skew our totals @@ -235,6 +240,7 @@ vmtotal(SYSCTL_HANDLER_ARGS) } } totalp->t_free = cnt.v_free_count + cnt.v_cache_count; + mtx_unlock(&vm_mtx); return (sysctl_handle_opaque(oidp, totalp, sizeof total, req)); } |