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Remove obsolete comment.

This commit is contained in:
ad 2007-05-02 21:54:16 +00:00
parent d6908bb21a
commit e7c35aabc9
1 changed files with 6 additions and 12 deletions
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18
lib/libpthread/pthread_types.h
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@ -1,4 +1,4 @@
/* $NetBSD: pthread_types.h,v 1.5 2003/09/26 22:48:23 nathanw Exp $ */ /* $NetBSD: pthread_types.h,v 1.6 2007/05/02 21:54:16 ad Exp $ */
/*- /*-
* Copyright (c) 2001 The NetBSD Foundation, Inc. * Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -89,23 +89,17 @@ struct __pthread_attr_st {
void *pta_private; void *pta_private;
}; };
/*
* ptm_lock will never be spun on: it's locked with
* pthread__simple_lock_try() or not at all.
*/
struct __pthread_mutex_st { struct __pthread_mutex_st {
unsigned int ptm_magic; unsigned int ptm_magic;
/* Not a real spinlock; will never be spun on. Locked with
* pthread__simple_lock_try() or not at all. Therefore, not
* subject to preempted-spinlock-continuation.
*
* Open research question: Would it help threaded applications if
* preempted-lock-continuation were applied to mutexes?
*/
pthread_spin_t ptm_lock; pthread_spin_t ptm_lock;
/* Protects the owner and blocked queue */
pthread_spin_t ptm_interlock; pthread_spin_t ptm_interlock;
pthread_t ptm_owner; pthread_t ptm_owner;
struct pthread_queue_t ptm_blocked; struct pthread_queue_t ptm_blocked;
void *ptm_private; void *ptm_private;
}; };
#define _PT_MUTEX_MAGIC 0x33330003 #define _PT_MUTEX_MAGIC 0x33330003