diff options
Diffstat (limited to 'sys/vm/vm_meter.c')
| -rw-r--r-- | sys/vm/vm_meter.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sys/vm/vm_meter.c b/sys/vm/vm_meter.c index 05174e9..713a2be 100644 --- a/sys/vm/vm_meter.c +++ b/sys/vm/vm_meter.c @@ -39,6 +39,7 @@ __FBSDID("$FreeBSD$"); #include <sys/mutex.h> #include <sys/proc.h> #include <sys/resource.h> +#include <sys/rwlock.h> #include <sys/sx.h> #include <sys/vmmeter.h> #include <sys/smp.h> @@ -110,7 +111,7 @@ vmtotal(SYSCTL_HANDLER_ARGS) */ mtx_lock(&vm_object_list_mtx); TAILQ_FOREACH(object, &vm_object_list, object_list) { - if (!VM_OBJECT_TRYLOCK(object)) { + if (!VM_OBJECT_TRYWLOCK(object)) { /* * Avoid a lock-order reversal. Consequently, * the reported number of active pages may be @@ -119,7 +120,7 @@ vmtotal(SYSCTL_HANDLER_ARGS) continue; } vm_object_clear_flag(object, OBJ_ACTIVE); - VM_OBJECT_UNLOCK(object); + VM_OBJECT_WUNLOCK(object); } mtx_unlock(&vm_object_list_mtx); /* @@ -178,10 +179,10 @@ vmtotal(SYSCTL_HANDLER_ARGS) if ((entry->eflags & MAP_ENTRY_IS_SUB_MAP) || (object = entry->object.vm_object) == NULL) continue; - VM_OBJECT_LOCK(object); + VM_OBJECT_WLOCK(object); vm_object_set_flag(object, OBJ_ACTIVE); paging |= object->paging_in_progress; - VM_OBJECT_UNLOCK(object); + VM_OBJECT_WUNLOCK(object); } vm_map_unlock_read(map); vmspace_free(vm); |
