From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yk0-x22f.google.com (mail-yk0-x22f.google.com [IPv6:2607:f8b0:4002:c07::22f]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 989771A0272 for ; Tue, 10 Nov 2015 19:28:59 +1100 (AEDT) Received: by ykdr82 with SMTP id r82so27688840ykd.3 for ; Tue, 10 Nov 2015 00:28:57 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <87twp3u13i.fsf@linux.vnet.ibm.com> References: <1445076522-20527-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> <87a8rarudb.fsf@linux.vnet.ibm.com> <87twp3u13i.fsf@linux.vnet.ibm.com> Date: Tue, 10 Nov 2015 11:28:57 +0300 Message-ID: Subject: Re: [PATCH V4 00/31] powerpc/mm: Update page table format for book3s 64 From: Denis Kirjanov To: "Aneesh Kumar K.V" Cc: Scott Wood , paulus@samba.org, linuxppc-dev@lists.ozlabs.org, Mel Gorman Content-Type: text/plain; charset=UTF-8 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 11/3/15, Aneesh Kumar K.V wrote: > Denis Kirjanov writes: > >> On 10/23/15, Aneesh Kumar K.V wrote: >>> Denis Kirjanov writes: >>> >>>> On 10/17/15, Aneesh Kumar K.V wrote: >>>>> Hi All, >>>>> >>>>> This patch series attempt to update book3s 64 linux page table format >>>>> to >>>>> make it more flexible. Our current pte format is very restrictive and >>>>> we >>>>> overload multiple pte bits. This is due to the non-availability of free >>>>> bits >>>>> in pte_t. We use pte_t to track the validity of 4K subpages. This patch >>>>> series free up pte_t of 11 bits by moving 4K subpage tracking to the >>>>> lower half of PTE page. The pte format is updated such that we have a >>>>> better method for identifying a pte entry at pmd level. This will also >>>>> enable >>>>> us to implement hugetlb migration(not yet done in this series). >>>> >>>> Hi, what tree does this apply to? >>>> >>> >>> linux-powerpc tree -next branch >>> >>> https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git/ >> >> Ok, but I'm getting the following error after applying the first patch >> from your series: >> >> error: patch failed: arch/powerpc/include/asm/pgalloc-64.h:166 >> error: arch/powerpc/include/asm/pgalloc-64.h: patch does not apply >> error: arch/powerpc/mm/hash64_64k.c: No such file or directory >> >> kda@hydra ~/devel/linux $ git branch >> master >> * next >> kda@hydra ~/devel/linux $ git remote show origin >> * remote origin >> Fetch URL: >> git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git >> Push URL: >> git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git >> >> Or am I missing something? > > > Why not use > > The patch series can also be found at > https://github.com/kvaneesh/linux.git book3s-pte-format > https://github.com/kvaneesh/linux/commits/book3s-pte-format I've started playing with your changes. Also I want to run Mel Gorman's mm tests[0] but it needs some work to adapt them to run. Thanks! [0] https://lwn.net/Articles/454121/ > > > -aneesh > > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@lists.ozlabs.org > https://lists.ozlabs.org/listinfo/linuxppc-dev