From: Jens Axboe <axboe@kernel.dk>
To: Dong Kai <dongkai11@huawei.com>,
jpoimboe@redhat.com, jikos@kernel.org, mbenes@suse.cz,
pmladek@suse.com, joe.lawrence@redhat.com
Cc: live-patching@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] livepatch: klp_send_signal should treat PF_IO_WORKER like PF_KTHREAD
Date: Thu, 25 Mar 2021 10:29:44 -0600 [thread overview]
Message-ID: <832b5870-b926-3ccb-155d-3c364ee5508d@kernel.dk> (raw)
In-Reply-To: <20210325014836.40649-1-dongkai11@huawei.com>
On 3/24/21 7:48 PM, Dong Kai wrote:
> commit 15b2219facad ("kernel: freezer should treat PF_IO_WORKER like
> PF_KTHREAD for freezing") is to fix the freezeing issue of IO threads
> by making the freezer not send them fake signals.
>
> Here live patching consistency model call klp_send_signals to wake up
> all tasks by send fake signal to all non-kthread which only check the
> PF_KTHREAD flag, so it still send signal to io threads which may lead to
> freezeing issue of io threads.
>
> Here we take the same fix action by treating PF_IO_WORKERS as PF_KTHREAD
> within klp_send_signal function.
Reviewed-by: Jens Axboe <axboe@kernel.dk>
--
Jens Axboe
prev parent reply other threads:[~2021-03-25 16:30 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-25 1:48 [PATCH] livepatch: klp_send_signal should treat PF_IO_WORKER like PF_KTHREAD Dong Kai
2021-03-25 2:51 ` Joe Lawrence
2021-03-25 9:30 ` Miroslav Benes
2021-03-25 16:30 ` Jens Axboe
2021-03-26 8:39 ` Miroslav Benes
2021-03-25 9:26 ` Miroslav Benes
2021-03-25 16:43 ` Joe Lawrence
2021-03-26 6:31 ` dongkai (H)
2021-03-25 16:29 ` Jens Axboe [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=832b5870-b926-3ccb-155d-3c364ee5508d@kernel.dk \
--to=axboe@kernel.dk \
--cc=dongkai11@huawei.com \
--cc=jikos@kernel.org \
--cc=joe.lawrence@redhat.com \
--cc=jpoimboe@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=live-patching@vger.kernel.org \
--cc=mbenes@suse.cz \
--cc=pmladek@suse.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;
as well as URLs for NNTP newsgroup(s).