RE: [ PATCH ] - Avoid slow TLB purges on SGI Altix systems

From: Luck, Tony <tony.luck_at_intel.com>
Date: 2005-10-28 02:01:53
-	if (mm != current->active_mm) {
-		/* this does happen, but perhaps it's not worth optimizing for? */
-#ifdef CONFIG_SMP
-		flush_tlb_all();
-#else
-		mm->context = 0;
-#endif
-		return;
-	}

Your patch moves this secion of code up to ia64_global_tlb_purge(),
but the new code that is added there doesn't include the UP case
where mm->context is set to zero.

-Tony
-
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Received on Fri Oct 28 02:02:39 2005

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