Messages in this thread | | | Date | Sat, 27 Mar 2004 09:29:40 -0600 | From | Dave McCracken <> | Subject | Re: 230-objrmap fixes for 2.6.3-mjb2 |
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--On Friday, March 26, 2004 15:25:23 -0800 Andrew Morton <akpm@osdl.org> wrote:
> It would be really, really nice if we could clean this crap up. mmap_sem > protects the vma tree, i_shared_sem protects the per-address_space vma > lists and page_table_lock protects the pagetables. > > Does this sound like something we can achieve? > > (Could page_table_lock then become per-vma?)
The page_table_lock protection includes pgd and pmd. Would they receive adequate protection with a per-vma lock? Could we come up with some lockless scheme for managing them? They're pretty much write-once, as it stands.
Dave McCracken
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