Messages in this thread | | | Date | Mon, 30 Aug 2004 19:02:11 +0200 | From | Herbert Poetzl <> | Subject | Re: page fault scalability patch final : i386 tested, x86_64 support added |
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On Fri, Aug 27, 2004 at 11:06:37PM -0700, Andrew Morton wrote: > Christoph Lameter <clameter@sgi.com> wrote: > > > > > As I said - for both these applications we need a new type which is > > > atomic64_t on 64-bit and atomic_t on 32-bit. > > > > That is simply a new definition in include/asm-*/atomic.h > > > > so > > > > #define atomic_long atomic64_t > > > > on 64 bit > > > > and > > > > #define atomic_long atomic_t > > > > on 32bit? > > No, a whole host of wrappers are needed - atomic_long_inc/dec/set/read, > etc. For page->_count we'll also need the fancier functions such as > atomic_long_add_return().
hmm, please correct me, but last time I checked atomic_add_return() wasn't even available for i386 for example ...
best, Herbert
> As I said: let's address this later on. It's probably not an issue for RSS > until 4-level pagetables come along. > - > 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/ - 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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