On Wed, Dec 11, 2013 at 5:50 PM, Benjamin Herrenschmidt <b...@kernel.crashing.org> wrote: > On Wed, 2013-12-11 at 16:50 +0800, Liu ping fan wrote: >> > why ? , All the hash routines do check for _PAGE_PRESENT via access >> > variable. >> > >> Going through __hash_page_4K(4k on 4k HW), I do not find such check. >> Am I wrong? Or I will send out a patch to fix that. > > We pass a bitmask of flags to check which are tested by doing an "andc" > of the PTE on that mask and checking if anything is left... > Oh, see it, thank you very much
Regards, Pingfan _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev