Messages in this thread | | | Date | Thu, 26 Aug 2004 17:18:40 -0700 | From | Andrew Morton <> | Subject | Re: [Lhms-devel] [RFC] buddy allocator without bitmap [2/4] |
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Hiroyuki KAMEZAWA <kamezawa.hiroyu@jp.fujitsu.com> wrote: > > In the previous version, I used SetPagePrivate()/ClearPagePrivate()/PagePrivate(). > But these are "atomic" operation and looks very slow. > This is why I doesn't used these macros in this version. > > My previous version, which used set_bit/test_bit/clear_bit, shows very bad performance > on my test, and I replaced it.
That's surprising. But if you do intend to use non-atomic bitops then please add __SetPagePrivate() and __ClearPagePrivate() - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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