Messages in this thread | | | Date | Tue, 27 Jan 2015 00:37:42 +0000 | From | Al Viro <> | Subject | Re: [PATCH 00/16 v3] tracing: Add new file system tracefs |
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On Mon, Jan 26, 2015 at 06:43:14PM -0500, Steven Rostedt wrote:
> I originally had this, but the issue isn't with i_mutex only. The > instance_mkdir and instance_rmdir need to grab trace_types_lock. This > is also held when calling into tracefs. > > 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.
Yecchhh...
Looks like something that fell out of BKL removal - AFAICS, you are using it to protect all kinds of things ;-/
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