From: "Michal Suchánek" <msuchanek@suse.de>
To: David Hildenbrand <david@redhat.com>
Cc: "Kate Stewart" <kstewart@linuxfoundation.org>,
"Rich Felker" <dalias@libc.org>,
linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org,
"Peter Zijlstra" <peterz@infradead.org>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
"Heiko Carstens" <heiko.carstens@de.ibm.com>,
"Michal Hocko" <mhocko@kernel.org>,
linux-mm@kvack.org, "Paul Mackerras" <paulus@samba.org>,
"H. Peter Anvin" <hpa@zytor.com>,
"Rashmica Gupta" <rashmica.g@gmail.com>,
"Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
"Stephen Rothwell" <sfr@canb.auug.org.au>,
"Michael Neuling" <mikey@neuling.org>,
"Stephen Hemminger" <sthemmin@microsoft.com>,
"Yoshinori Sato" <ysato@users.sourceforge.jp>,
"Vitaly Kuznetsov" <vkuznets@redhat.com>,
linux-acpi@vger.kernel.org, "Ingo Molnar" <mingo@redhat.com>,
xen-devel@lists.xenproject.org, "Rob Herring" <robh@kernel.org>,
"Len Brown" <lenb@kernel.org>,
"Pavel Tatashin" <pavel.tatashin@microsoft.com>,
linux-s390@vger.kernel.org,
"mike.travis@hpe.com" <mike.travis@hpe.com>,
"Haiyang Zhang" <haiyangz@microsoft.com>,
"Jonathan Neuschäfer" <j.neuschaefer@gmx.net>,
"Nicholas Piggin" <npiggin@gmail.com>,
"Joe Perches" <joe@perches.com>,
"Jérôme Glisse" <jglisse@redhat.com>,
"Mike Rapoport" <rppt@linux.vnet.ibm.com>,
"Borislav Petkov" <bp@alien8.de>,
"Andy Lutomirski" <luto@kernel.org>,
"Dan Williams" <dan.j.williams@intel.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Oscar Salvador" <osalvador@suse.de>,
"Juergen Gross" <jgross@suse.com>,
"Tony Luck" <tony.luck@intel.com>,
"Mathieu Malaterre" <malat@debian.org>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
linux-kernel@vger.kernel.org, "Fenghua Yu" <fenghua.yu@intel.com>,
"Mauricio Faria de Oliveira" <mauricfo@linux.vnet.ibm.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Philippe Ombredanne" <pombredanne@nexb.com>,
"Martin Schwidefsky" <schwidefsky@de.ibm.com>,
devel@linuxdriverproject.org,
"Joonsoo Kim" <iamjoonsoo.kim@lge.com>,
linuxppc-dev@lists.ozlabs.org,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: Re: [PATCH RFC] mm/memory_hotplug: Introduce memory block types
Date: Thu, 4 Oct 2018 17:28:07 +0200 [thread overview]
Message-ID: <20181004172807.1eef3a6b@kitsune.suse.cz> (raw)
In-Reply-To: <efd50413-4be4-06c4-5ef0-711fdf05db71@redhat.com>
On Thu, 4 Oct 2018 10:13:48 +0200
David Hildenbrand <david@redhat.com> wrote:
ok, so what is the problem here?
Handling the hotplug in userspace through udev may be suboptimal and
kernel handling might be faster but that's orthogonal to the problem at
hand.
The state of the art is to determine what to do with hotplugged memory
in userspace based on platform and virtualization type.
Changing the default to depend on the driver that added the memory
rather than platform type should solve the issue of VMs growing
different types of memory device emulation.
Am I missing something?
Thanks
Michal
next prev parent reply other threads:[~2018-10-04 15:30 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-28 15:03 [PATCH RFC] mm/memory_hotplug: Introduce memory block types David Hildenbrand
2018-09-28 17:02 ` Dave Hansen
2018-10-01 9:13 ` David Hildenbrand
2018-10-01 16:24 ` Dave Hansen
2018-10-04 7:48 ` David Hildenbrand
2018-10-01 8:40 ` Michal Hocko
2018-10-01 9:34 ` David Hildenbrand
2018-10-02 13:47 ` Michal Hocko
2018-10-02 15:25 ` David Hildenbrand
2018-10-03 13:38 ` Vitaly Kuznetsov
2018-10-03 13:44 ` Michal Hocko
2018-10-03 13:52 ` Vitaly Kuznetsov
2018-10-03 14:07 ` Dave Hansen
2018-10-03 14:34 ` Vitaly Kuznetsov
2018-10-03 17:14 ` David Hildenbrand
2018-10-04 6:19 ` Michal Hocko
2018-10-04 8:13 ` David Hildenbrand
2018-10-04 15:28 ` Michal Suchánek [this message]
2018-10-04 15:45 ` David Hildenbrand
2018-10-04 17:50 ` Michal Suchánek
2018-10-05 7:37 ` David Hildenbrand
2018-10-03 14:24 ` Michal Hocko
2018-10-03 17:06 ` David Hildenbrand
2018-10-04 8:12 ` David Hildenbrand
2018-10-03 13:54 ` Michal Hocko
2018-10-03 17:00 ` David Hildenbrand
2018-10-04 6:28 ` Michal Hocko
2018-10-04 7:40 ` David Hildenbrand
2018-11-23 11:13 ` David Hildenbrand
2018-11-23 18:06 ` Michal Suchánek
2018-11-26 12:30 ` David Hildenbrand
2018-11-26 13:33 ` David Hildenbrand
2018-11-26 14:20 ` Michal Suchánek
2018-11-26 15:59 ` David Hildenbrand
2018-11-27 16:32 ` Michal Suchánek
2018-11-27 16:47 ` David Hildenbrand
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=20181004172807.1eef3a6b@kitsune.suse.cz \
--to=msuchanek@suse.de \
--cc=akpm@linux-foundation.org \
--cc=boris.ostrovsky@oracle.com \
--cc=bp@alien8.de \
--cc=dalias@libc.org \
--cc=dan.j.williams@intel.com \
--cc=dave.hansen@linux.intel.com \
--cc=david@redhat.com \
--cc=devel@linuxdriverproject.org \
--cc=fenghua.yu@intel.com \
--cc=gregkh@linuxfoundation.org \
--cc=haiyangz@microsoft.com \
--cc=heiko.carstens@de.ibm.com \
--cc=hpa@zytor.com \
--cc=iamjoonsoo.kim@lge.com \
--cc=j.neuschaefer@gmx.net \
--cc=jglisse@redhat.com \
--cc=jgross@suse.com \
--cc=joe@perches.com \
--cc=kirill.shutemov@linux.intel.com \
--cc=kstewart@linuxfoundation.org \
--cc=lenb@kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-ia64@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-s390@vger.kernel.org \
--cc=linux-sh@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=luto@kernel.org \
--cc=malat@debian.org \
--cc=mauricfo@linux.vnet.ibm.com \
--cc=mhocko@kernel.org \
--cc=mike.travis@hpe.com \
--cc=mikey@neuling.org \
--cc=mingo@redhat.com \
--cc=npiggin@gmail.com \
--cc=osalvador@suse.de \
--cc=paulus@samba.org \
--cc=pavel.tatashin@microsoft.com \
--cc=peterz@infradead.org \
--cc=pombredanne@nexb.com \
--cc=rashmica.g@gmail.com \
--cc=rjw@rjwysocki.net \
--cc=robh@kernel.org \
--cc=rppt@linux.vnet.ibm.com \
--cc=schwidefsky@de.ibm.com \
--cc=sfr@canb.auug.org.au \
--cc=sthemmin@microsoft.com \
--cc=tglx@linutronix.de \
--cc=tony.luck@intel.com \
--cc=vkuznets@redhat.com \
--cc=xen-devel@lists.xenproject.org \
--cc=ysato@users.sourceforge.jp \
/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).