From: Dan Williams <dan.j.williams@intel.com>
To: Joao Martins <joao.m.martins@oracle.com>
Cc: Linux MM <linux-mm@kvack.org>, Ira Weiny <ira.weiny@intel.com>,
linux-nvdimm <linux-nvdimm@lists.01.org>,
Matthew Wilcox <willy@infradead.org>,
Jason Gunthorpe <jgg@ziepe.ca>, Jane Chu <jane.chu@oracle.com>,
Muchun Song <songmuchun@bytedance.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH v1 07/11] mm/sparse-vmemmap: populate compound pagemaps
Date: Mon, 10 May 2021 12:19:56 -0700 [thread overview]
Message-ID: <CAPcyv4guVWx0TdEe_Z+CQEbRPDk9LGcgb87pb=g8XdRyeUaPcQ@mail.gmail.com> (raw)
In-Reply-To: <63ce653d-4d21-c955-7b81-abba25b9e4b6@oracle.com>
On Thu, May 6, 2021 at 4:02 AM Joao Martins <joao.m.martins@oracle.com> wrote:
[..]
> >> +static pte_t * __meminit vmemmap_lookup_address(unsigned long addr)
> >
> > I think this can be replaced with a call to follow_pte(&init_mm...).
> >
>
> Ah, of course! That would shorten things up too.
Now that I look closely, I notice that function disclaims being
suitable as a general purpose pte lookup utility. If it works for you,
great, but if not I think it's past time to create such a helper. I
know Ira is looking for one, and I contributed to the proliferation
when I added dev_pagemap_mapping_shift().
next prev parent reply other threads:[~2021-05-10 19:20 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-25 23:09 [PATCH v1 00/11] mm, sparse-vmemmap: Introduce compound pagemaps Joao Martins
2021-03-25 23:09 ` [PATCH v1 01/11] memory-failure: fetch compound_head after pgmap_pfn_valid() Joao Martins
2021-04-24 0:12 ` Dan Williams
2021-04-24 19:00 ` Joao Martins
2021-03-25 23:09 ` [PATCH v1 02/11] mm/page_alloc: split prep_compound_page into head and tail subparts Joao Martins
2021-04-24 0:16 ` Dan Williams
2021-04-24 19:05 ` Joao Martins
2021-03-25 23:09 ` [PATCH v1 03/11] mm/page_alloc: refactor memmap_init_zone_device() page init Joao Martins
2021-04-24 0:18 ` Dan Williams
2021-04-24 19:05 ` Joao Martins
2021-03-25 23:09 ` [PATCH v1 04/11] mm/memremap: add ZONE_DEVICE support for compound pages Joao Martins
2021-05-05 18:44 ` Dan Williams
2021-05-05 18:58 ` Matthew Wilcox
2021-05-05 19:49 ` Joao Martins
2021-05-05 22:20 ` Dan Williams
2021-05-05 22:36 ` Joao Martins
2021-05-05 23:03 ` Dan Williams
2021-05-06 10:12 ` Joao Martins
2021-05-18 17:27 ` Joao Martins
2021-05-18 19:56 ` Jane Chu
2021-05-19 11:29 ` Joao Martins
2021-05-19 18:36 ` Jane Chu
2021-06-07 20:17 ` Dan Williams
2021-06-07 20:47 ` Joao Martins
2021-06-07 21:00 ` Joao Martins
2021-06-07 21:57 ` Dan Williams
2021-05-06 8:05 ` Aneesh Kumar K.V
2021-05-06 10:23 ` Joao Martins
2021-05-06 11:43 ` Matthew Wilcox
2021-05-06 12:15 ` Joao Martins
2021-03-25 23:09 ` [PATCH v1 05/11] mm/sparse-vmemmap: add a pgmap argument to section activation Joao Martins
2021-05-05 22:34 ` Dan Williams
2021-05-05 22:37 ` Joao Martins
2021-05-05 23:14 ` Dan Williams
2021-05-06 10:24 ` Joao Martins
2021-03-25 23:09 ` [PATCH v1 06/11] mm/sparse-vmemmap: refactor vmemmap_populate_basepages() Joao Martins
2021-05-05 22:43 ` Dan Williams
2021-05-06 10:27 ` Joao Martins
2021-05-06 18:36 ` Joao Martins
2021-03-25 23:09 ` [PATCH v1 07/11] mm/sparse-vmemmap: populate compound pagemaps Joao Martins
2021-05-06 1:18 ` Dan Williams
2021-05-06 11:01 ` Joao Martins
2021-05-10 19:19 ` Dan Williams [this message]
2021-05-13 18:45 ` Joao Martins
2021-06-16 15:05 ` Joao Martins
2021-06-16 23:35 ` Dan Williams
2021-03-25 23:09 ` [PATCH v1 08/11] mm/sparse-vmemmap: use hugepages for PUD " Joao Martins
2021-06-01 19:30 ` Dan Williams
2021-06-07 12:02 ` Joao Martins
2021-06-07 19:47 ` Dan Williams
2021-03-25 23:09 ` [PATCH v1 09/11] mm/page_alloc: reuse tail struct pages for " Joao Martins
2021-06-01 23:35 ` Dan Williams
2021-06-07 13:48 ` Joao Martins
2021-06-07 19:32 ` Dan Williams
2021-06-14 18:41 ` Joao Martins
2021-06-14 23:07 ` Dan Williams
2021-03-25 23:09 ` [PATCH v1 10/11] device-dax: compound pagemap support Joao Martins
2021-06-02 0:36 ` Dan Williams
2021-06-07 13:59 ` Joao Martins
2021-03-25 23:09 ` [PATCH v1 11/11] mm/gup: grab head page refcount once for group of subpages Joao Martins
2021-06-02 1:05 ` Dan Williams
2021-06-07 15:21 ` Joao Martins
2021-06-07 19:22 ` Dan Williams
2021-04-01 9:38 ` [PATCH v1 00/11] mm, sparse-vmemmap: Introduce compound pagemaps Joao Martins
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAPcyv4guVWx0TdEe_Z+CQEbRPDk9LGcgb87pb=g8XdRyeUaPcQ@mail.gmail.com' \
--to=dan.j.williams@intel.com \
--cc=akpm@linux-foundation.org \
--cc=ira.weiny@intel.com \
--cc=jane.chu@oracle.com \
--cc=jgg@ziepe.ca \
--cc=joao.m.martins@oracle.com \
--cc=linux-mm@kvack.org \
--cc=linux-nvdimm@lists.01.org \
--cc=mike.kravetz@oracle.com \
--cc=songmuchun@bytedance.com \
--cc=willy@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).