linux-kernel - Re: [PATCH v9 1/1] mm: report per-page metadata information

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date: Fri, 12 Apr 2024 13:04:57 -0400
From: Pasha Tatashin <pasha.tatashin@...een.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Sourav Panda <souravpanda@...gle.com>, corbet@....net, gregkh@...uxfoundation.org, 
	rafael@...nel.org, mike.kravetz@...cle.com, muchun.song@...ux.dev, 
	rppt@...nel.org, david@...hat.com, rdunlap@...radead.org, 
	chenlinxuan@...ontech.com, yang.yang29@....com.cn, tomas.mudrunka@...il.com, 
	bhelgaas@...gle.com, ivan@...udflare.com, yosryahmed@...gle.com, 
	hannes@...xchg.org, shakeelb@...gle.com, kirill.shutemov@...ux.intel.com, 
	wangkefeng.wang@...wei.com, adobriyan@...il.com, vbabka@...e.cz, 
	Liam.Howlett@...cle.com, surenb@...gle.com, linux-kernel@...r.kernel.org, 
	linux-fsdevel@...r.kernel.org, linux-doc@...r.kernel.org, linux-mm@...ck.org, 
	willy@...radead.org, weixugc@...gle.com
Subject: Re: [PATCH v9 1/1] mm: report per-page metadata information

> >  Documentation/filesystems/proc.rst |  3 +++
> >  fs/proc/meminfo.c                  |  4 ++++
> >  include/linux/mmzone.h             |  4 ++++
> >  include/linux/vmstat.h             |  4 ++++
> >  mm/hugetlb_vmemmap.c               | 17 ++++++++++++----
> >  mm/mm_init.c                       |  3 +++
> >  mm/page_alloc.c                    |  1 +
> >  mm/page_ext.c                      | 32 +++++++++++++++++++++---------
> >  mm/sparse-vmemmap.c                |  8 ++++++++
> >  mm/sparse.c                        |  7 ++++++-
> >  mm/vmstat.c                        | 26 +++++++++++++++++++++++-
> >  11 files changed, 94 insertions(+), 15 deletions(-)
>
> And yet we offer the users basically no documentation.  The new sysfs
> file should be documented under Documentation/ABI somewhere and

There are no new sysfs files in this change. The new Memmap field in
/proc/meminfo is documented.

> perhaps we could prepare some more expansive user-facing documentation
> elsewhere?
>
> I'd like to hear others' views on the overall usefulness/utility of this
> change, please?

Sourav, could you please consolidate the cover letter and the patch
into one email, sync it with the upstream kernel, and send the new
version putting the necessary background information into the stat
area in the patch.

Thanks,
Pasha