Re: [reiserfs-list] Re: Note describing poor dcache utilization under high memory pressure

Valdis.Kletnieks@vt.edu
Mon, 28 Jan 2002 20:37:22 -0500


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On Mon, 28 Jan 2002 19:29:49 CST, Oliver Xymoron said:

> I think something more is needed, such as creating a minimal page table
> for the child process with read-only mappings to the current %EIP and %EBP
> pages in it. This gets us past the fork/exec hurdle. Without the exec, we
> copy over chunks when they're accessed as above in handle_mm_fault. But
> you can't actually _share_ the page tables without marking the pages
> themselves readonly.

Actually, you can. But everybody agrees that vfork() was blecherous.

-- 
				Valdis Kletnieks
				Computer Systems Senior Engineer
				Virginia Tech

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