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Code Issues Releases Activity

- Use vm_object_reference_locked() directly from

Browse Source 
vm_object_reference().  This is intended to get rid of vget()
   consumers who don't wish to acquire a lock.  This is functionally
   the same as calling vref(). vm_object_reference_locked() already
   uses vref.

Discussed with:	alc
This commit is contained in:
Jeff Roberson 2008-03-29 07:06:13 +00:00
parent 5c643ed000
commit 52481a9a9d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=177704
1 changed files with 2 additions and 15 deletions
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17
sys/vm/vm_object.c
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@ -364,22 +364,11 @@ vm_object_allocate(objtype_t type, vm_pindex_t size)
void
vm_object_reference(vm_object_t object)
{
struct vnode *vp;
if (object == NULL)
return;
VM_OBJECT_LOCK(object);
object->ref_count++;
if (object->type == OBJT_VNODE) {
int vfslocked;
vp = object->handle;
VM_OBJECT_UNLOCK(object);
vfslocked = VFS_LOCK_GIANT(vp->v_mount);
vget(vp, LK_RETRY, curthread);
VFS_UNLOCK_GIANT(vfslocked);
} else
VM_OBJECT_UNLOCK(object);
vm_object_reference_locked(object);
VM_OBJECT_UNLOCK(object);
}
/*
@ -395,8 +384,6 @@ vm_object_reference_locked(vm_object_t object)
struct vnode *vp;
VM_OBJECT_LOCK_ASSERT(object, MA_OWNED);
KASSERT((object->flags & OBJ_DEAD) == 0,
("vm_object_reference_locked: dead object referenced"));
object->ref_count++;
if (object->type == OBJT_VNODE) {
vp = object->handle;