From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Michal Hocko <mhocko@suse.com>
Cc: cgroups@vger.kernel.org, linux-mm@kvack.org,
"Andrew Morton" <akpm@linux-foundation.org>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"Michal Koutný" <mkoutny@suse.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Vladimir Davydov" <vdavydov.dev@gmail.com>,
"Waiman Long" <longman@redhat.com>,
"kernel test robot" <oliver.sang@intel.com>
Subject: Re: [PATCH v3 5/5] mm/memcg: Protect memcg_stock with a local_lock_t
Date: Mon, 21 Feb 2022 18:25:12 +0100 [thread overview]
Message-ID: <YhPK+Ht4I4MTFI+m@linutronix.de> (raw)
In-Reply-To: <YhPJM4RjqklanVLE@dhcp22.suse.cz>
On 2022-02-21 18:17:39 [+0100], Michal Hocko wrote:
> > What about if replace get_cpu() with migrate_disable()?
>
> Yeah, that would be a better option. I am just not used to think in RT
> so migrate_disable didn't really come to my mind.
Good.
Let me rebase accordingly, new version is coming soon.
Side note: migrate_disable() is by now implemented in !RT and used in
highmem for instance (kmap_atomic()).
Sebastian
prev parent reply other threads:[~2022-02-21 17:25 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-17 9:47 [PATCH v3 0/5] mm/memcg: Address PREEMPT_RT problems instead of disabling it Sebastian Andrzej Siewior
2022-02-17 9:47 ` [PATCH v3 1/5] mm/memcg: Revert ("mm/memcg: optimize user context object stock access") Sebastian Andrzej Siewior
2022-02-18 16:09 ` Shakeel Butt
2022-02-21 14:26 ` Michal Hocko
2022-02-17 9:47 ` [PATCH v3 2/5] mm/memcg: Disable threshold event handlers on PREEMPT_RT Sebastian Andrzej Siewior
2022-02-18 16:39 ` Shakeel Butt
2022-02-21 14:27 ` Michal Hocko
2022-02-17 9:48 ` [PATCH v3 3/5] mm/memcg: Protect per-CPU counter by disabling preemption on PREEMPT_RT where needed Sebastian Andrzej Siewior
2022-02-18 17:25 ` Shakeel Butt
2022-02-21 11:31 ` Sebastian Andrzej Siewior
2022-02-21 12:12 ` Sebastian Andrzej Siewior
2022-02-21 13:18 ` Michal Koutný
2022-02-21 13:58 ` Sebastian Andrzej Siewior
2022-02-17 9:48 ` [PATCH v3 4/5] mm/memcg: Opencode the inner part of obj_cgroup_uncharge_pages() in drain_obj_stock() Sebastian Andrzej Siewior
2022-02-18 18:40 ` Shakeel Butt
2022-02-18 19:07 ` Roman Gushchin
2022-02-21 14:30 ` Michal Hocko
2022-02-17 9:48 ` [PATCH v3 5/5] mm/memcg: Protect memcg_stock with a local_lock_t Sebastian Andrzej Siewior
2022-02-21 14:46 ` Michal Hocko
2022-02-21 15:19 ` Sebastian Andrzej Siewior
2022-02-21 16:24 ` Michal Hocko
2022-02-21 16:44 ` Sebastian Andrzej Siewior
2022-02-21 17:17 ` Michal Hocko
2022-02-21 17:25 ` Sebastian Andrzej Siewior [this message]
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=YhPK+Ht4I4MTFI+m@linutronix.de \
--to=bigeasy@linutronix.de \
--cc=akpm@linux-foundation.org \
--cc=cgroups@vger.kernel.org \
--cc=hannes@cmpxchg.org \
--cc=linux-mm@kvack.org \
--cc=longman@redhat.com \
--cc=mhocko@suse.com \
--cc=mkoutny@suse.com \
--cc=oliver.sang@intel.com \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
--cc=vdavydov.dev@gmail.com \
/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