linux-kernel - Re: [PATCH] block: Employ u64_stats

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Message-ID: <20131113121145.GA22849@localhost>
Date:	Wed, 13 Nov 2013 20:11:45 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	John Stultz <john.stultz@...aro.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Vivek Goyal <vgoyal@...hat.com>, Jens Axboe <axboe@...nel.dk>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH] block: Employ u64_stats_init()

On Tue, Nov 12, 2013 at 07:42:14PM -0800, John Stultz wrote:
> From: Peter Zijlstra <peterz@...radead.org>
> 
> Now that seqcounts are lockdep enabled objects, we need to properly
> initialize them.

It works!

Tested-by: Fengguang Wu <fengguang.wu@...el.com>

/kernel/i386-randconfig-j7-11082318/cb460d7163af828b404eeb6e06cb236895e7edd6

+-------------------------------------------------+-------+--------------+--------------+
|                                                 | v3.12 | 838cc7b488f8 | cb460d7163af |
+-------------------------------------------------+-------+--------------+--------------+
| boot_successes                                  | 129   | 0            | 100          |
| boot_failures                                   | 1     | 100          |              |
| BUG:kernel_early_hang_without_any_printk_output | 1     |              |              |
| INFO:trying_to_register_non-static_key          | 0     | 100          |              |
+-------------------------------------------------+-------+--------------+--------------+

Thanks,
Fengguang
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