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Make non-mpsafe threads KERNEL_LOCK() before starting execution.

This commit is contained in:
pooka 2008-12-10 18:47:01 +00:00
parent 15e362cca8
commit 7243af74cb
1 changed files with 6 additions and 1 deletions
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7
sys/rump/librump/rumpkern/emul.c
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@ -1,4 +1,4 @@
/* $NetBSD: emul.c,v 1.57 2008/11/27 08:05:27 pooka Exp $ */
/* $NetBSD: emul.c,v 1.58 2008/12/10 18:47:01 pooka Exp $ */
/*
* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
@ -378,6 +378,7 @@ struct kthdesc {
void (*f)(void *);
void *arg;
struct lwp *mylwp;
bool mpsafe;
};
static void *
@ -392,6 +393,8 @@ threadbouncer(void *arg)
rumpuser_set_curlwp(k->mylwp);
kmem_free(k, sizeof(struct kthdesc));
if (!k->mpsafe)
KERNEL_LOCK(1, NULL);
f(thrarg);
panic("unreachable, should kthread_exit()");
}
@ -436,6 +439,7 @@ kthread_create(pri_t pri, int flags, struct cpu_info *ci,
k->f = func;
k->arg = arg;
k->mylwp = l = rump_setup_curlwp(0, rump_nextlid(), 0);
k->mpsafe = flags & KTHREAD_MPSAFE;
rv = rumpuser_thread_create(threadbouncer, k);
if (rv)
return rv;
@ -449,6 +453,7 @@ void
kthread_exit(int ecode)
{
panic("FIXME: kthread_exit() does not support mpsafe locking");
rumpuser_thread_exit();
}