On Mon, 2013-05-20 at 09:57 +0530, Aneesh Kumar K.V wrote: > Michael Neuling <mi...@neuling.org> writes: > > > Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com> wrote: > > > >> From: "Aneesh Kumar K.V" <aneesh.ku...@linux.vnet.ibm.com> > >> > >> We need to use smb_rmb when looking at hpte slot array. Otherwise we could > >> reorder the hpte_slot array load bfore even we marked the pmd trans huge. > > > > Does this need to go back into the stable series? > > > > No the changes are not yet upstream. hpte_slot_array changes are in the > THP series. I didn't want to post the entire series again with the > above two patches.
Note that any patch that adds such a rmb should have a very clear description of what is the corresponding wmb. It's almost never right to have one without the other. IE. What is it that you are ordering against. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
