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From: John Baldwin <jhb@FreeBSD.org>
Subject: PERFORCE change 26435 for review
To: Perforce Change Reviews <perforce@freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=26435

Change 26435 by jhb@jhb_laptop on 2003/03/06 09:44:05

	We don't actually need sched_lock to test TDF_DEADLKTREAT because
	we only ever set it on curthread and test it on curthread.

Affected files ...

.. //depot/projects/smpng/sys/kern/kern_lock.c#22 edit

Differences ...

==== //depot/projects/smpng/sys/kern/kern_lock.c#22 (text+ko) ====

@@ -265,10 +265,8 @@
 		 */
 		if (lkp->lk_lockholder != thr) {
 			lockflags = LK_HAVE_EXCL;
-			mtx_lock_spin(&sched_lock);
 			if (td != NULL && !(td->td_flags & TDF_DEADLKTREAT))
 				lockflags |= LK_WANT_EXCL | LK_WANT_UPGRADE;
-			mtx_unlock_spin(&sched_lock);
 			error = acquire(&lkp, extflags, lockflags);
 			if (error)
 				break;

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