linux-kernel - Re: [PATCH 00/16 v3] tracing: Add new file system tracefs

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Message-ID: <20150126184916.70d88963@gandalf.local.home>
Date:	Mon, 26 Jan 2015 18:49:16 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 00/16 v3] tracing: Add new file system tracefs

On Mon, 26 Jan 2015 18:43:14 -0500
Steven Rostedt <rostedt@...dmis.org> wrote:
 
> That is, we can not hold i_mutex and take trace_types_lock.
> 
> trace_types_lock needs to be held with the creation or destruction of
> events, which is what mkdir an rmdir do.

Although, I can not remember how this happened, but lockdep blew up on
me with this. I'll look again.
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