Messages in this thread |  | | Date | Fri, 13 Oct 2000 14:25:45 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: Updated Linux 2.4 Status/TODO List (from the ALS show) |
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On Fri, 13 Oct 2000, Jakub Jelinek wrote:
> On Fri, Oct 13, 2000 at 02:17:23PM -0700, Richard Henderson wrote: > > On Fri, Oct 13, 2000 at 12:45:47PM +0100, Alan Cox wrote: > > > Can we always be sure the rss will fit in an atomic_t - is it > 32bits on the > > > ultrsparc/alpha ? > > > > It is not. > > It is not even 32bit on sparc32 (24bit only).
But remember that "rss" counts in pages, so it's plenty for sparc32: only 32 bits of virtual address that can count towards the rss.
And even on alpha, a 32-bit atomic_t means we cover 45 bits of virtual address space, which, btw, is more than you can cram into the current three-level page tables, I think.
Linus
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