From: tip-bot for Frederic Weisbecker <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: torvalds@linux-foundation.org, mingo@kernel.org, tj@kernel.org,
linux-kernel@vger.kernel.org, peterz@infradead.org,
davem@davemloft.net, jiangshanlai@gmail.com,
paulmck@linux.vnet.ibm.com, tglx@linutronix.de, hpa@zytor.com,
frederic@kernel.org
Subject: [tip:locking/core] netpoll: Use lockdep to assert IRQs are disabled/enabled
Date: Wed, 8 Nov 2017 02:57:01 -0800 [thread overview]
Message-ID: <tip-af0733937317e1e03b60f3af8cf9cd59d665593c@git.kernel.org> (raw)
In-Reply-To: <1509980490-4285-14-git-send-email-frederic@kernel.org>
Commit-ID: af0733937317e1e03b60f3af8cf9cd59d665593c
Gitweb: https://git.kernel.org/tip/af0733937317e1e03b60f3af8cf9cd59d665593c
Author: Frederic Weisbecker <frederic@kernel.org>
AuthorDate: Mon, 6 Nov 2017 16:01:29 +0100
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Wed, 8 Nov 2017 11:13:54 +0100
netpoll: Use lockdep to assert IRQs are disabled/enabled
Use lockdep to check that IRQs are enabled or disabled as expected. This
way the sanity check only shows overhead when concurrency correctness
debug code is enabled.
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/1509980490-4285-14-git-send-email-frederic@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
net/core/netpoll.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 912731b..57557a6 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -334,7 +334,7 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb,
/* It is up to the caller to keep npinfo alive. */
struct netpoll_info *npinfo;
- WARN_ON_ONCE(!irqs_disabled());
+ lockdep_assert_irqs_disabled();
npinfo = rcu_dereference_bh(np->dev->npinfo);
if (!npinfo || !netif_running(dev) || !netif_device_present(dev)) {
next prev parent reply other threads:[~2017-11-08 11:01 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-06 15:01 [GIT PULL] lockdep: Add lightweight IRQs disabled/enabled check v2 Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 01/14] lockdep: Add IRQs disabled/enabled assertion Frederic Weisbecker
2017-11-08 10:51 ` [tip:locking/core] locking/lockdep: Add IRQs disabled/enabled assertion APIs: lockdep_assert_irqs_enabled()/disabled() tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 02/14] irq: Use lockdep to assert IRQs are disabled/enabled Frederic Weisbecker
2017-11-08 10:52 ` [tip:locking/core] irq/softirqs: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 03/14] workqueue: " Frederic Weisbecker
2017-11-08 10:52 ` [tip:locking/core] " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 04/14] nohz: " Frederic Weisbecker
2017-11-08 10:53 ` [tip:locking/core] timers/nohz: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 05/14] hrtimer: " Frederic Weisbecker
2017-11-08 10:53 ` [tip:locking/core] timers/hrtimer: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 06/14] smp: " Frederic Weisbecker
2017-11-08 10:54 ` [tip:locking/core] smp/core: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 07/14] x86: " Frederic Weisbecker
2017-11-08 10:54 ` [tip:locking/core] " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 08/14] perf: " Frederic Weisbecker
2017-11-08 10:54 ` [tip:locking/core] perf/core: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 09/14] irq/timings: " Frederic Weisbecker
2017-11-08 10:55 ` [tip:locking/core] " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 10/14] irq_work: " Frederic Weisbecker
2017-11-08 10:55 ` [tip:locking/core] " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 11/14] sched: " Frederic Weisbecker
2017-11-08 10:56 ` [tip:locking/core] sched/clock, sched/cputime: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 12/14] posix-cpu-timers: " Frederic Weisbecker
2017-11-08 10:56 ` [tip:locking/core] timers/posix-cpu-timers: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 13/14] netpoll: " Frederic Weisbecker
2017-11-08 10:57 ` tip-bot for Frederic Weisbecker [this message]
2017-11-06 15:01 ` [PATCH 14/14] rcu: " Frederic Weisbecker
2017-11-08 10:57 ` [tip:locking/core] " tip-bot for Frederic Weisbecker
2017-11-08 9:58 ` [GIT PULL] lockdep: Add lightweight IRQs disabled/enabled check v2 Thomas Gleixner
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=tip-af0733937317e1e03b60f3af8cf9cd59d665593c@git.kernel.org \
--to=tipbot@zytor.com \
--cc=davem@davemloft.net \
--cc=frederic@kernel.org \
--cc=hpa@zytor.com \
--cc=jiangshanlai@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tip-commits@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=paulmck@linux.vnet.ibm.com \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
--cc=tj@kernel.org \
--cc=torvalds@linux-foundation.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).