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Date: Mon, 18 Sep 2017 16:36:23 +0000 From: Bart Van Assche <Bart.VanAssche@....com> To: "mingo@...nel.org" <mingo@...nel.org>, "longman@...hat.com" <longman@...hat.com>, "rostedt@...dmis.org" <rostedt@...dmis.org>, "axboe@...nel.dk" <axboe@...nel.dk> CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-block@...r.kernel.org" <linux-block@...r.kernel.org> Subject: Re: [PATCH v5] blktrace: Fix potentail deadlock between delete & sysfs ops On Sat, 2017-09-16 at 19:37 -0700, Waiman Long wrote: > diff --git a/include/linux/fs.h b/include/linux/fs.h > index 339e737..330b572 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -448,7 +448,7 @@ struct block_device { > > /* The counter of freeze processes */ > int bd_fsfreeze_count; > - /* Mutex for freeze */ > + /* Mutex for freeze and blktrace */ > struct mutex bd_fsfreeze_mutex; > } __randomize_layout; This patch changes the meaning of bd_fsfreeze_mutex significantly. Please rename that mutex such that its name matches its new role. Thanks, Bart.
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