From: Jeff Moyer <jmoyer@redhat.com>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Benjamin LaHaise <bcrl@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Joonsoo Kim <js1304@gmail.com>,
Fengguang Wu <fengguang.wu@intel.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Stephen Rothwell <sfr@canb.auug.org.au>,
linux-next@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm-move-mremap-from-file_operations-to-vm_operations_struct-fix
Date: Mon, 20 Jul 2015 10:22:10 -0400 [thread overview]
Message-ID: <x49h9oysyct.fsf@segfault.boston.devel.redhat.com> (raw)
In-Reply-To: 20150717223147.GA13259@redhat.com
Hi, Oleg,
Oleg Nesterov <oleg@redhat.com> writes:
> Shouldn't we account aio events/pages somehow, say per-user, or in
> mm->pinned_vm ?
Ages ago I wrote a patch to account the completion ring to a process'
memlock limit:
"[patch] aio: remove aio-max-nr and instead use the memlock rlimit to
limit the number of pages pinned for the aio completion ring"
http://marc.info/?l=linux-aio&m=123661380807041&w=2
The problem with that patch is that it modifies the user/kernel
interface. It could be done over time, as Andrew outlined in that
thread, but I've been reluctant to take that on.
If you just mean we should account the memory so that the right process
can be killed, that sounds like a good idea to me.
Cheers,
Jeff
next prev parent reply other threads:[~2015-07-20 14:22 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-16 23:14 [PATCH] mm-move-mremap-from-file_operations-to-vm_operations_struct-fix Oleg Nesterov
2015-07-16 23:22 ` Stephen Rothwell
2015-07-16 23:24 ` Andrew Morton
2015-07-16 23:52 ` Oleg Nesterov
2015-07-17 14:06 ` Benjamin LaHaise
2015-07-17 17:27 ` Oleg Nesterov
2015-07-17 17:37 ` Benjamin LaHaise
2015-07-17 17:55 ` Oleg Nesterov
2015-07-17 18:12 ` Austin S Hemmelgarn
2015-07-17 18:19 ` Oleg Nesterov
2015-07-17 18:39 ` Austin S Hemmelgarn
2015-07-17 18:54 ` Oleg Nesterov
2015-07-17 19:09 ` Austin S Hemmelgarn
2015-07-17 22:56 ` Oleg Nesterov
2015-07-17 22:31 ` Oleg Nesterov
2015-07-20 14:22 ` Jeff Moyer [this message]
2015-07-20 17:33 ` Oleg Nesterov
2015-07-20 17:51 ` Benjamin LaHaise
2015-07-20 18:30 ` Jeff Moyer
2015-07-20 18:31 ` Oleg Nesterov
2015-07-20 19:24 ` Oleg Nesterov
2015-07-20 19:39 ` Benjamin LaHaise
2015-07-20 20:03 ` Oleg Nesterov
2015-07-21 15:29 ` [PATCH v2] mm-move-mremap-from-file_operations-to-vm_operations_struct-fix Oleg Nesterov
2015-07-21 15:38 ` Benjamin LaHaise
2015-07-21 16:18 ` Oleg Nesterov
2015-07-21 16:20 ` [PATCH v3] mm-move-mremap-from-file_operations-to-vm_operations_struct-fix Oleg Nesterov
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=x49h9oysyct.fsf@segfault.boston.devel.redhat.com \
--to=jmoyer@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=bcrl@kvack.org \
--cc=fengguang.wu@intel.com \
--cc=hannes@cmpxchg.org \
--cc=js1304@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-next@vger.kernel.org \
--cc=oleg@redhat.com \
--cc=sfr@canb.auug.org.au \
/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).