From 36aeb90e348472432ad0dcbef56a2e4ce78efa5a Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Sun, 17 Oct 2004 22:33:40 +0000 Subject: Assert that the containing object is locked in vm_page_io_start() and vm_page_io_finish(). The motivation being to transition synchronization of the vm_page's busy field from the global page queues lock to the per-object lock. --- sys/vm/vm_page.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c index 91683a648ebb0..561a5d8b58d47 100644 --- a/sys/vm/vm_page.c +++ b/sys/vm/vm_page.c @@ -335,6 +335,7 @@ void vm_page_io_start(vm_page_t m) { + VM_OBJECT_LOCK_ASSERT(m->object, MA_OWNED); mtx_assert(&vm_page_queue_mtx, MA_OWNED); m->busy++; } @@ -343,6 +344,7 @@ void vm_page_io_finish(vm_page_t m) { + VM_OBJECT_LOCK_ASSERT(m->object, MA_OWNED); mtx_assert(&vm_page_queue_mtx, MA_OWNED); m->busy--; if (m->busy == 0) -- cgit v1.3