From ef4e8a19cfc9fb054dbda2b5efdaef60ef82438c Mon Sep 17 00:00:00 2001 From: alc Date: Sat, 19 Apr 2003 21:15:44 +0000 Subject: - Lock the vm_object when performing vm_object_pip_wakeupn(). - Assert that the vm_object lock is held in vm_object_pip_wakeupn(). - Add a new macro VM_OBJECT_LOCK_ASSERT(). --- sys/kern/vfs_bio.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'sys/kern') diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c index 6893c8a..4125781 100644 --- a/sys/kern/vfs_bio.c +++ b/sys/kern/vfs_bio.c @@ -3193,8 +3193,11 @@ bufdone(struct buf *bp) iosize -= resid; } vm_page_unlock_queues(); - if (obj) + if (obj != NULL) { + VM_OBJECT_LOCK(obj); vm_object_pip_wakeupn(obj, 0); + VM_OBJECT_UNLOCK(obj); + } } /* @@ -3231,6 +3234,7 @@ vfs_unbusy_pages(struct buf * bp) vm_object_t obj; obj = bp->b_object; + VM_OBJECT_LOCK(obj); vm_page_lock_queues(); for (i = 0; i < bp->b_npages; i++) { vm_page_t m = bp->b_pages[i]; @@ -3249,6 +3253,7 @@ vfs_unbusy_pages(struct buf * bp) } vm_page_unlock_queues(); vm_object_pip_wakeupn(obj, 0); + VM_OBJECT_UNLOCK(obj); } } -- cgit v1.1