Messages in this thread | | | Date | Fri, 19 Mar 2004 11:15:30 -0500 (EST) | From | Rik van Riel <> | Subject | Re: [PATCH] anobjrmap 5/6 anonmm |
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On Thu, 18 Mar 2004, Hugh Dickins wrote:
> + (*mapcount)--;
> + if (anonmm->mm && anonmm->mm->rss) { > + referenced += page_referenced_one( > + page, anonmm->mm, page->index, mapcount); > + if (!*mapcount) > + goto out; > }
Brilliant little optimisation over what I thought Linus proposed at first. This certainly removes the biggest disadvantage I (and presumably Andrea) thought the mm based reverse mapping would have !
I like this code a lot...
-- "Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it." - Brian W. Kernighan
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