[src/trunk]: src/sys/sys Add lwp_getpcb(). OK matt@.

[rmind <rmind%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/fcbe9cccb450
branches:  trunk
changeset: 749167:fcbe9cccb450
user:      rmind <rmind%NetBSD.org@localhost>
date:      Fri Nov 20 03:12:13 2009 +0000

description:
Add lwp_getpcb().  OK matt@.

diffstat:

 sys/sys/lwp.h |  11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diffs (32 lines):

diff -r 255ea610eaff -r fcbe9cccb450 sys/sys/lwp.h
--- a/sys/sys/lwp.h     Fri Nov 20 02:17:07 2009 +0000
+++ b/sys/sys/lwp.h     Fri Nov 20 03:12:13 2009 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: lwp.h,v 1.122 2009/11/01 20:57:34 rmind Exp $  */
+/*     $NetBSD: lwp.h,v 1.123 2009/11/20 03:12:13 rmind Exp $  */
 
 /*-
  * Copyright (c) 2001, 2006, 2007, 2008, 2009 The NetBSD Foundation, Inc.
@@ -79,7 +79,7 @@
        struct cpu_info *volatile l_cpu;/* s: CPU we're on if LSONPROC */
        kmutex_t * volatile l_mutex;    /* l: ptr to mutex on sched state */
        int             l_ctxswtch;     /* l: performing a context switch */
-       struct user     *l_addr;        /* l: KVA of u-area (PROC ONLY) */
+       struct user     *l_addr;        /* l: PCB address; use lwp_getpcb() */
        struct mdlwp    l_md;           /* l: machine-dependent fields. */
        int             l_flag;         /* l: misc flag values */
        int             l_stat;         /* l: overall LWP status */
@@ -391,6 +391,13 @@
        return MAX(l->l_inheritedprio, pri);
 }
 
+static inline void *
+lwp_getpcb(lwp_t *l)
+{
+
+       return &l->l_addr->u_pcb;
+}
+
 int lwp_create(lwp_t *, struct proc *, vaddr_t, int,
     void *, size_t, void (*)(void *), void *, lwp_t **, int);