Messages in this thread | | | Date | Tue, 17 Aug 2004 16:37:15 +0100 | From | Christoph Hellwig <> | Subject | Re: page fault fastpath patch v2: fix race conditions, stats for 8,32 and 512 cpu SMP |
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On Tue, Aug 17, 2004 at 08:28:44AM -0700, Christoph Lameter wrote: > This is the second release of the page fault fastpath path. The fast path > avoids locking during the creation of page table entries for anonymous > memory in a threaded application running on a SMP system. The performance > increases significantly for more than 4 threads running concurrently.
Please reformat your patch according to Documentation/CodingStyle (or just look at the surrounding code..).
Also you're duplicating far too much code of the regular pagefault code, this probably wants some inlined helpers.
Your ptep_lock should be called ptep_trylock.
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