From: Hannes Reinecke <hare@suse.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Coly Li <colyli@suse.com>, Neil Brown <neilb@suse.com>,
linux-block@vger.kernel.org, linux-raid@vger.kernel.org,
Hannes Reinecke <hare@suse.de>
Subject: [PATCH] md/raid1: avoid soft lockup under high load
Date: Fri, 25 Oct 2019 09:08:56 +0200 [thread overview]
Message-ID: <20191025070856.76761-1-hare@suse.de> (raw)
As all I/O is being pushed through a kernel thread the softlockup
watchdog might be triggered under high load.
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
drivers/md/raid1.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index d37a55f8e461..d7543805e9ff 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -821,6 +821,7 @@ static void flush_bio_list(struct r1conf *conf, struct bio *bio)
else
generic_make_request(bio);
bio = next;
+ cond_resched();
}
}
--
2.16.4
next reply other threads:[~2019-10-25 7:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-25 7:08 Hannes Reinecke [this message]
2019-10-30 23:20 ` [PATCH] md/raid1: avoid soft lockup under high load Song Liu
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=20191025070856.76761-1-hare@suse.de \
--to=hare@suse.de \
--cc=axboe@kernel.dk \
--cc=colyli@suse.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-raid@vger.kernel.org \
--cc=neilb@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).