From: Dan Carpenter <dan.carpenter@linaro.org>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Frederic Weisbecker <frederic@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Boqun Feng <boqun.feng@gmail.com>,
Joel Fernandes <joel@joelfernandes.org>,
Josh Triplett <josh@joshtriplett.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Neeraj Upadhyay <neeraj.upadhyay@amd.com>,
Steven Rostedt <rostedt@goodmis.org>,
Uladzislau Rezki <urezki@gmail.com>, rcu <rcu@vger.kernel.org>
Subject: Re: [PATCH 23/23] locktorture: Check the correct variable for allocation failure
Date: Wed, 11 Oct 2023 09:46:25 +0300 [thread overview]
Message-ID: <029de83a-dcf1-439d-8d6b-7267d2636e37@kadam.mountain> (raw)
In-Reply-To: <b9a976f6-c002-4e3d-8c6d-cef3953bd3a7@paulmck-laptop>
On Tue, Oct 10, 2023 at 08:53:36AM -0700, Paul E. McKenney wrote:
> On Tue, Oct 10, 2023 at 05:07:00PM +0300, Dan Carpenter wrote:
> > On Tue, Oct 10, 2023 at 06:55:40AM -0700, Paul E. McKenney wrote:
> > > On Tue, Oct 10, 2023 at 01:59:21PM +0200, Frederic Weisbecker wrote:
> > > > From: Dan Carpenter <dan.carpenter@linaro.org>
> > > >
> > > > There is a typo so this checks the wrong variable. "chains" plural vs
> > > > "chain" singular. We already know that "chains" is non-zero.
> > > >
> > > > Fixes: 7f993623e9eb ("locktorture: Add call_rcu_chains module parameter")
> > > > Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
> > > > Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
> > >
> > > Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
> > >
> > > A name change to increase the Hamming distance would of course also be
> > > good, though less urgent. ;-)
> >
> > "Hamming distance" is such a great phrase. I'm going to use that every
> > time I complain about confusingly similar variable names going forward.
>
> Glad you like it!
>
> But the horrible thing is that I first heard that phrase back in
> the 1970s, and I am the guilty party who created these particular
> too-similar variable names. (Why has the phrase fallen out of favor?
> No idea, really, but one guess has to do with the fact that current
> error-correcting codes must deal with different probabilities of different
> bits flipping in different directions, so you would instead needs a
> weirdly weighted variant of Hamming distance to accomplish anything with
> modern error-correcting codes.)
>
> But how about something like the following?
>
Looks good!
regards,
dan carpenter
prev parent reply other threads:[~2023-10-11 6:46 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-10 11:58 [PATCH 00/23] RCU/lock torture updates for v6.7 Frederic Weisbecker
2023-10-10 11:58 ` [PATCH 01/23] torture: Share torture_random_state with torture_shuffle_tasks() Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 02/23] torture: Make kvm-recheck.sh use mktemp Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 03/23] torture: Make torture_hrtimeout_ns() take an hrtimer mode parameter Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 04/23] rcu: Include torture_sched_setaffinity() declaration Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 05/23] torture: Move rcutorture_sched_setaffinity() out of rcutorture Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 06/23] locktorture: Add readers_bind and writers_bind module parameters Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 07/23] rcutorture: Add CONFIG_DEBUG_OBJECTS to RCU Tasks testing Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 08/23] rcutorture: Fix stuttering races and other issues Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 09/23] locktorture: Alphabetize torture_param() entries Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 10/23] locktorture: Consolidate "if" statements in lock_torture_writer() Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 11/23] locktorture: Add acq_writer_lim to complain about long acquistion times Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 12/23] rcutorture: Copy out ftrace into its own console file Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 13/23] torture: Print out torture module parameters Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 14/23] torture: Make torture.sh refscale testing qualify verbose_batched Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 15/23] locktorture: Add new module parameters to lock_torture_print_module_parms() Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 16/23] locktorture: Add call_rcu_chains module parameter Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 17/23] doc: Catch-up update for locktorture module parameters Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 18/23] locktorture: Rename readers_bind/writers_bind to bind_readers/bind_writers Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 19/23] torture: Add kvm.sh --debug-info argument Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 20/23] rcutorture: Replace schedule_timeout*() 1-jiffy waits with HZ/20 Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 21/23] rcutorture: Traverse possible cpu to set maxcpu in rcu_nocb_toggle() Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 22/23] torture: Convert parse-console.sh to mktemp Frederic Weisbecker
2023-10-10 11:59 ` [PATCH 23/23] locktorture: Check the correct variable for allocation failure Frederic Weisbecker
2023-10-10 13:55 ` Paul E. McKenney
2023-10-10 14:07 ` Dan Carpenter
2023-10-10 15:53 ` Paul E. McKenney
2023-10-11 6:46 ` Dan Carpenter [this message]
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