Linux-rt-users archive on
 help / color / Atom feed
From: Sebastian Andrzej Siewior <>
To: Juri Lelli <>
Subject: Re: [RT PATCH v2] net/xfrm/xfrm_ipcomp: Protect scratch buffer with local_lock
Date: Tue, 20 Aug 2019 10:28:10 +0200
Message-ID: <> (raw)
In-Reply-To: <>

On 2019-08-19 14:27:31 [+0200], Juri Lelli wrote:
> This v2 applies to v4.19.59-rt24.

Looks good, I suggest to apply this to v4.19 and earlier.

For v5.2 and later (including upstream) please send a patch to simply
replace get_cpu() with smp_processor_id(). The reason is that get_cpu()
will not disable BH and according to the call path this function is
invoked in NAPI callback and the other sides does local_bh_disable().
Therefore the caller of this must ensure that BH is disabled and
disabling preemption is not enough.


      parent reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-19 12:27 Juri Lelli
2019-08-19 19:57 ` Steven Rostedt
2019-08-20  6:43   ` Juri Lelli
2019-08-20  5:35 ` kbuild test robot
2019-08-20  6:42   ` Juri Lelli
2019-08-21  1:43     ` Li, Philip
2019-08-21  6:44       ` Juri Lelli
2019-08-21  7:00         ` bigeasy
2019-08-20  8:28 ` Sebastian Andrzej Siewior [this message]

Reply instructions:

You may reply publically 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:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \ \ \ \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-rt-users archive on

Archives are clonable:
	git clone --mirror linux-rt-users/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-rt-users linux-rt-users/ \
	public-inbox-index linux-rt-users

Example config snippet for mirrors

Newsgroup available over NNTP:

AGPL code for this site: git clone public-inbox