diff options
| author | Owain Ainsworth <oga@cvs.openbsd.org> | 2009-08-06 15:28:15 +0000 |
|---|---|---|
| committer | Owain Ainsworth <oga@cvs.openbsd.org> | 2009-08-06 15:28:15 +0000 |
| commit | 6e7e8975626fe603529c0e60cefa188eeb5c890e (patch) | |
| tree | 3b3d95f29dc62527a2b78ff502abe9eb379a1445 /sys/uvm/uvm_device.c | |
| parent | f32484ba9d7d14a17687020bdcc98d2e3d42a940 (diff) | |
reintroduce the uvm_tree commit.
Now instead of the global object hashtable, we have a per object tree.
Testing shows no performance difference and a slight code shrink. OTOH when
locking is more fine grained this should be faster due to lock contention on
uvm.hashlock.
ok thib@, art@.
Diffstat (limited to 'sys/uvm/uvm_device.c')
| -rw-r--r-- | sys/uvm/uvm_device.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/uvm/uvm_device.c b/sys/uvm/uvm_device.c index 53b28c095e5..27e079934b3 100644 --- a/sys/uvm/uvm_device.c +++ b/sys/uvm/uvm_device.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_device.c,v 1.35 2009/06/16 23:54:57 oga Exp $ */ +/* $OpenBSD: uvm_device.c,v 1.36 2009/08/06 15:28:14 oga Exp $ */ /* $NetBSD: uvm_device.c,v 1.30 2000/11/25 06:27:59 chs Exp $ */ /* @@ -245,7 +245,7 @@ udv_attach(void *arg, vm_prot_t accessprot, voff_t off, vsize_t size) simple_lock_init(&udv->u_obj.vmobjlock); udv->u_obj.pgops = &uvm_deviceops; - TAILQ_INIT(&udv->u_obj.memq); + RB_INIT(&udv->u_obj.memt); udv->u_obj.uo_npages = 0; udv->u_obj.uo_refs = 1; udv->u_flags = 0; @@ -305,7 +305,7 @@ again: uobj,uobj->uo_refs,0,0); return; } - KASSERT(uobj->uo_npages == 0 && TAILQ_EMPTY(&uobj->memq)); + KASSERT(uobj->uo_npages == 0 && RB_EMPTY(&uobj->memt)); /* * is it being held? if so, wait until others are done. |