Messages in this thread | | | Date | Wed, 16 Dec 2009 20:12:18 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | Re: [mm][RFC][PATCH 0/11] mm accessor updates. |
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On Wed, 16 Dec 2009 11:49:51 +0100 Andi Kleen <andi@firstfloor.org> wrote:
> On Wed, Dec 16, 2009 at 07:31:09PM +0900, KAMEZAWA Hiroyuki wrote: > > On Wed, 16 Dec 2009 11:28:06 +0100 > > Andi Kleen <andi@firstfloor.org> wrote: > > > > > > > Also the patches didn't fare too well in testing unfortunately. > > > > > > > > > > I suspect we'll rather need multiple locks split per address > > > > > space range. > > > > > > > > This set doesn't include any changes of the logic. Just replace all mmap_sem. > > > > I think this is good start point (for introducing another logic etc..) > > > > > > The problem is that for range locking simple wrapping the locks > > > in macros is not enough. You need more changes. > > > > > maybe. but removing scatterred mmap_sem from codes is the first thing to do. > > I think this removing itself will take 3 month or a half year. > > (So, I didn't remove mmap_sem and leave it as it is.) > > I suspect you would just need to change them again then. > Do you have alternative recommendation rather than wrapping all accesses by special functions ?
Thanks, -Kame
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