From: Michal Hocko <mhocko@suse.com>
To: Vinicius Petrucci <vpetrucci@gmail.com>
Cc: Frank van der Linden <fvdl@google.com>,
Zhongkun He <hezhongkun.hzk@bytedance.com>,
corbet@lwn.net, akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, linux-api@vger.kernel.org,
linux-doc@vger.kernel.org, wuyun.abel@bytedance.com
Subject: Re: [RFC] mm: add new syscall pidfd_set_mempolicy()
Date: Wed, 12 Oct 2022 15:23:33 +0200 [thread overview]
Message-ID: <Y0a/1SnV9kTz0hRG@dhcp22.suse.cz> (raw)
In-Reply-To: <Y0a8IxAXy43unTSb@dhcp22.suse.cz>
On Wed 12-10-22 15:07:48, Michal Hocko wrote:
> On Wed 12-10-22 07:34:06, Vinicius Petrucci wrote:
[...]
> > Having a feature like "pidfd/process_mbind" would really simplify our
> > user-level agent implementation moving forward, as right now we are
> > adding a LD_PRELOAD wrapper (for signal handler) to listen and execute
> > "mbind" requests from another process. If there's any other
> > alternative solution to this already (via ptrace?), please let me
> > know.
>
> userfaultfd sounds like the closest match if #PF handling under control
> of an external agent is viable.
And just to clarify. I haven't ever played with using userfaultfd for
numa balancing so I might be completely wrong here.
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2022-10-12 13:23 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-10 9:48 Zhongkun He
2022-10-10 16:22 ` Frank van der Linden
2022-10-11 15:00 ` Michal Hocko
2022-10-11 17:22 ` Frank van der Linden
2022-10-11 19:29 ` Michal Hocko
2022-10-12 3:14 ` Abel Wu
2022-10-12 12:34 ` Vinicius Petrucci
2022-10-12 13:07 ` Michal Hocko
2022-10-12 13:23 ` Michal Hocko [this message]
2022-10-12 16:51 ` Frank van der Linden
2022-10-11 14:57 ` Michal Hocko
2022-10-12 7:55 ` [External] " Zhongkun He
2022-10-12 9:02 ` Michal Hocko
2022-10-12 11:22 ` Zhongkun He
2022-10-12 12:15 ` Michal Hocko
2022-10-13 10:44 ` Zhongkun He
2022-10-13 11:26 ` Michal Hocko
2022-10-13 12:50 ` Zhongkun He
2022-10-13 13:17 ` Michal Hocko
2022-10-13 13:42 ` Zhongkun He
2022-10-12 4:16 ` Bagas Sanjaya
2022-10-12 8:18 ` [External] " Zhongkun He
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