From: Uladzislau Rezki <urezki@gmail.com>
To: qiang.zhang@windriver.com
Cc: "Paul E. McKenney" <paulmck@kernel.org>,
rcu@vger.kernel.org, linux-kernel@vger.kernel.org,
urezki@gmail.com
Subject: Re: [PATCH] rcu: Release per-cpu krcp page cache when CPU going offline
Date: Thu, 21 Jan 2021 21:26:35 +0100 [thread overview]
Message-ID: <20210121202635.GB2454@pc638.lan> (raw)
In-Reply-To: <20210121185615.GR2743@paulmck-ThinkPad-P72>
Hello, Qiang,
> On Thu, Jan 21, 2021 at 02:49:49PM +0800, qiang.zhang@windriver.com wrote:
> > From: Zqiang <qiang.zhang@windriver.com>
> >
> > If CPUs go offline, the corresponding krcp's page cache can
> > not be use util the CPU come back online, or maybe the CPU
> > will never go online again, this commit therefore free krcp's
> > page cache when CPUs go offline.
> >
> > Signed-off-by: Zqiang <qiang.zhang@windriver.com>
>
Do you consider it as an issue? We have 5 pages per CPU, that is 20480 bytes.
--
Vlad Rezki
next prev parent reply other threads:[~2021-01-21 20:29 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-21 6:49 [PATCH] rcu: Release per-cpu krcp page cache when CPU going offline qiang.zhang
2021-01-21 18:56 ` Paul E. McKenney
2021-01-21 20:26 ` Uladzislau Rezki [this message]
2021-01-22 1:44 ` 回复: " Zhang, Qiang
2021-01-22 14:31 ` Uladzislau Rezki
2021-01-24 2:21 ` 回复: " Zhang, Qiang
2021-01-24 17:42 ` Uladzislau Rezki
2021-01-26 14:07 ` Uladzislau Rezki
2021-01-27 9:00 ` 回复: " Zhang, Qiang
2021-01-27 12:47 ` Uladzislau Rezki
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=20210121202635.GB2454@pc638.lan \
--to=urezki@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=paulmck@kernel.org \
--cc=qiang.zhang@windriver.com \
--cc=rcu@vger.kernel.org \
/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).