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This commit is contained in:
yamt 2011-04-08 10:36:58 +00:00
parent 6f21bdca87
commit 09f62f3554
2 changed files with 15 additions and 7 deletions
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9
sys/sys/userret.h
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@ -1,4 +1,4 @@
/* $NetBSD: userret.h,v 1.22 2011/02/25 22:37:12 yamt Exp $ */
/* $NetBSD: userret.h,v 1.23 2011/04/08 10:36:58 yamt Exp $ */
/*-
* Copyright (c) 1998, 2000, 2003, 2006, 2008 The NetBSD Foundation, Inc.
@ -94,6 +94,13 @@ mi_userret(struct lwp *l)
if (__predict_false(((l->l_flag & LW_USERRET) | p->p_timerpend) != 0))
lwp_userret(l);
l->l_kpriority = false;
/*
* cpu_set_curpri(prio) is a MD optimized version of:
*
* kpreempt_disable();
* curcpu()->ci_schedstate.spc_curpriority = prio;
* kpreempt_enable();
*/
cpu_set_curpri(l->l_priority); /* XXX this needs to die */
#else
ci = l->l_cpu;

13
sys/uvm/uvm_map.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: uvm_map.c,v 1.295 2011/02/02 15:25:27 chuck Exp $ */
/* $NetBSD: uvm_map.c,v 1.296 2011/04/08 10:38:36 yamt Exp $ */
/*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
@ -66,7 +66,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: uvm_map.c,v 1.295 2011/02/02 15:25:27 chuck Exp $");
__KERNEL_RCSID(0, "$NetBSD: uvm_map.c,v 1.296 2011/04/08 10:38:36 yamt Exp $");
#include "opt_ddb.h"
#include "opt_uvmhist.h"
@ -3398,11 +3398,12 @@ uvm_map_willneed(struct vm_map *map, vaddr_t start, vaddr_t end)
KASSERT(entry != &map->header);
KASSERT(start < entry->end);
/*
* XXX IMPLEMENT ME.
* Should invent a "weak" mode for uvm_fault()
* which would only do the PGO_LOCKED pgo_get().
* For now, we handle only the easy but commonly-requested case.
* ie. start prefetching of backing uobj pages.
*
* for now, we handle only the easy but common case.
* XXX It might be useful to pmap_enter() the already-in-core
* pages by inventing a "weak" mode for uvm_fault() which would
* only do the PGO_LOCKED pgo_get().
*/
if (UVM_ET_ISOBJ(entry) && amap == NULL && uobj != NULL) {
off_t offset;