From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Subject: Re: [rfc patch] drivers/block/zram: Replace bit spinlocks with
 rtmutex for -rt
Date: Mon, 4 Apr 2016 09:27:57 +0900
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 <20160330085622.GA21849@linutronix.de>
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Cc: Mike Galbraith <umgwanakikbuti@gmail.com>,
	Minchan Kim <minchan@kernel.org>,
	Nitin Gupta <ngupta@vflare.org>,
	Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	RT <linux-rt-users@vger.kernel.org>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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On (04/01/16 12:42), Sebastian Andrzej Siewior wrote:
> >They're nondeterministic, and lead to ___might_sleep() splats in -rt.
> >OTOH, they're a lot less wasteful than an rtmutex per page.
> Applied.
> Although I'm disapointed about Sergey's argument against the spinlock in
> general due to a few bytes used by lockdep which can be disabled. Not to
> mention the usefull debug facility lockdep provides if one decides to
> use.

I'll take a look.

	-ss