From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Peter Zijlstra" <peterz@infradead.org>,
"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
"Nicholas A. Bellinger" <nab@linux-iscsi.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>,
linux-rt-users <linux-rt-users@vger.kernel.org>,
"Steven Rostedt" <rostedt@goodmis.org>,
"Linux SCSI List" <linux-scsi@vger.kernel.org>,
"Daniel Bristot de Oliveira" <daniel@bristot.me>,
"Luis Claudio R. Gonçalves" <lclaudio@redhat.com>,
"Clark Williams" <williams@redhat.com>,
target-devel <target-devel@vger.kernel.org>
Subject: Re: [PATCH] target: Use WARNON_NON_RT(!irqs_disabled())
Date: Thu, 22 Mar 2018 06:37:45 -0300 [thread overview]
Message-ID: <20180322093745.GC4229@kernel.org> (raw)
In-Reply-To: <CA+55aFwKN_JijmCt=0S4jF8KzGPmoKNbuYF59va7U4ziJLLryA@mail.gmail.com>
Em Wed, Mar 21, 2018 at 11:43:58AM -0700, Linus Torvalds escreveu:
> [ Adding PeterZ to participants due to query about lockdep_assert() ]
>
> On Wed, Mar 21, 2018 at 8:38 AM, Arnaldo Carvalho de Melo
> <acme@kernel.org> wrote:
> >
> > assert_spin_locked(&cmd->t_state_lock);
> > - WARN_ON_ONCE(!irqs_disabled());
> > + WARN_ON_ONCE_NONRT(!irqs_disabled());
>
> Ugh.
>
> Can't we just replace both of those with a lockdep annotation?
Huh, even better, when that feature gets finished (tglx said it was
being developed, not there yet tho) it'll allow further reduction of the
PREEMPT_RT_FULL patchkit.
- Arnaldo
next prev parent reply other threads:[~2018-03-22 9:38 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-21 15:38 [PATCH] target: Use WARNON_NON_RT(!irqs_disabled()) Arnaldo Carvalho de Melo
2018-03-21 18:43 ` Linus Torvalds
2018-03-22 9:13 ` Thomas Gleixner
2018-03-22 9:37 ` Arnaldo Carvalho de Melo [this message]
2018-03-22 9:40 ` Arnaldo Carvalho de Melo
2018-03-22 9:47 ` Thomas Gleixner
2018-03-23 15:55 ` Sebastian Andrzej Siewior
2018-03-23 16:25 ` Bart Van Assche
2018-03-23 16:33 ` bigeasy
2018-03-23 16:37 ` Linus Torvalds
2018-03-23 17:17 ` [PATCH 1/2] target: drop spin_lock_assert() + irqs_disabled() combo checks bigeasy
2018-03-23 17:19 ` [PATCH 2/2] target: remove spin_lock_assert() in __target_(attach|detach)_tg_pt_gp() bigeasy
2018-03-23 17:44 ` Bart Van Assche
2018-03-23 17:50 ` bigeasy
2018-03-23 17:55 ` Bart Van Assche
2018-03-26 15:38 ` Steven Rostedt
2018-03-23 17:36 ` [PATCH 1/2 v2] target: drop spin_lock_assert() + irqs_disabled() combo checks Sebastian Andrzej Siewior
2018-03-23 17:47 ` Bart Van Assche
2018-03-26 15:13 ` [PATCH 1/2] " Steven Rostedt
2018-03-28 10:15 ` bigeasy
2018-03-28 15:05 ` Bart Van Assche
2018-03-28 15:14 ` bigeasy
2018-03-28 15:31 ` Bart Van Assche
2018-05-28 14:35 ` bigeasy
2018-06-04 7:02 ` Bart Van Assche
2018-06-04 7:16 ` bigeasy
2018-03-26 14:21 ` [PATCH] target: Use WARNON_NON_RT(!irqs_disabled()) Arnaldo Carvalho de Melo
2018-03-21 18:50 ` Christoph Hellwig
2018-03-21 19:01 ` Steven Rostedt
2018-03-22 10:25 ` kbuild test robot
2018-03-22 10:45 ` kbuild test robot
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