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- Don't lock the vnode interlock in vm_object_set_writeable_dirty() if

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we've already set the object flags.

Reviewed by:	alc
This commit is contained in:
jeff 2005-03-17 12:03:42 +00:00
parent 91796cd6d7
commit 92d24b8044
1 changed files with 4 additions and 2 deletions
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6
sys/vm/vm_object.c
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@ -1887,12 +1887,14 @@ vm_object_set_writeable_dirty(vm_object_t object)
struct vnode *vp;
VM_OBJECT_LOCK_ASSERT(object, MA_OWNED);
if ((object->flags & (OBJ_MIGHTBEDIRTY|OBJ_WRITEABLE)) ==
(OBJ_MIGHTBEDIRTY|OBJ_WRITEABLE))
return;
vm_object_set_flag(object, OBJ_WRITEABLE|OBJ_MIGHTBEDIRTY);
if (object->type == OBJT_VNODE &&
(vp = (struct vnode *)object->handle) != NULL) {
VI_LOCK(vp);
if ((vp->v_iflag & VI_OBJDIRTY) == 0)
vp->v_iflag |= VI_OBJDIRTY;
vp->v_iflag |= VI_OBJDIRTY;
VI_UNLOCK(vp);
}
}