[Linux-ia64] Re: ia64_spinlock_contention and NEW_LOCK

From: David Mosberger <davidm_at_napali.hpl.hp.com>
Date: 2003-03-14 09:14:44
>>>>> On Fri, 14 Mar 2003 08:59:54 +1100, Keith Owens <kaos@sgi.com> said:

  Keith> All is not lost, there is one spare slot in spin_lock which
  Keith> can clear r29 (dummy ar.pfs) before entering
  Keith> ia64_spinlock_contention.

But that won't work for leaf routines as that would permanently
clobber pfs.

	--david
Received on Thu Mar 13 14:16:17 2003

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