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lwp_lock: this can't be simplified for the UP case, as races still exist.

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This commit is contained in:
ad 2008-07-03 15:15:40 +00:00
parent 153124ee21
commit f4ddfb5c59
1 changed files with 1 additions and 5 deletions
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6
sys/sys/lwp.h
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@ -1,4 +1,4 @@
/* $NetBSD: lwp.h,v 1.104 2008/07/02 19:44:10 rmind Exp $ */
/* $NetBSD: lwp.h,v 1.105 2008/07/03 15:15:40 ad Exp $ */
/*-
* Copyright (c) 2001, 2006, 2007, 2008 The NetBSD Foundation, Inc.
@ -317,7 +317,6 @@ void lwp_whatis(uintptr_t, void (*)(const char *, ...));
static inline void
lwp_lock(lwp_t *l)
{
#if defined(MULTIPROCESSOR) || defined(LOCKDEBUG)
kmutex_t *old;
mutex_spin_enter(old = l->l_mutex);
@ -328,9 +327,6 @@ lwp_lock(lwp_t *l)
*/
if (__predict_false(l->l_mutex != old))
lwp_lock_retry(l, old);
#else
mutex_spin_enter(l->l_mutex);
#endif
}
/*