Re: [PATCH v2] blktrace: Fix potentail deadlock between delete & sysfs ops

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To: Bart Van Assche <Bart.VanAssche@xxxxxxx>
Subject: Re: [PATCH v2] blktrace: Fix potentail deadlock between delete & sysfs ops
From: Steven Rostedt <rostedt@xxxxxxxxxxx>
Date: Fri, 18 Aug 2017 13:26:02 -0400
Cc: "longman@xxxxxxxxxx" <longman@xxxxxxxxxx>, "bfields@xxxxxxxxxxxx" <bfields@xxxxxxxxxxxx>, "mingo@xxxxxxxxxx" <mingo@xxxxxxxxxx>, "jlayton@xxxxxxxxxxxxxxx" <jlayton@xxxxxxxxxxxxxxx>, "linux-block@xxxxxxxxxxxxxxx" <linux-block@xxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "axboe@xxxxxxxxx" <axboe@xxxxxxxxx>, "linux-fsdevel@xxxxxxxxxxxxxxx" <linux-fsdevel@xxxxxxxxxxxxxxx>
Dmarc-filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8E82D2392B
In-reply-to: <1503073304.2622.5.camel@wdc.com>

On Fri, 18 Aug 2017 16:21:46 +0000
Bart Van Assche <Bart.VanAssche@xxxxxxx> wrote:

> Sorry Waiman but personally I thoroughly detest loops around mutex_trylock() or
> mutex_timed_lock() because such loops are usually used to paper over a problem
> instead of fixing the root cause.

100% agree.

-- Steve

References:
- [PATCH v2] blktrace: Fix potentail deadlock between delete & sysfs ops
  - From: Waiman Long
- Re: [PATCH v2] blktrace: Fix potentail deadlock between delete & sysfs ops
  - From: Steven Rostedt
- Re: [PATCH v2] blktrace: Fix potentail deadlock between delete & sysfs ops
  - From: Waiman Long
- Re: [PATCH v2] blktrace: Fix potentail deadlock between delete & sysfs ops
  - From: Steven Rostedt
- Re: [PATCH v2] blktrace: Fix potentail deadlock between delete & sysfs ops
  - From: Steven Rostedt
- Re: [PATCH v2] blktrace: Fix potentail deadlock between delete & sysfs ops
  - From: Waiman Long
- Re: [PATCH v2] blktrace: Fix potentail deadlock between delete & sysfs ops
  - From: Bart Van Assche

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