linux-kernel - Re: [PATCH 1/4] Add support for userspace stacktraces in tracing/iter

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Date:	Mon, 13 Oct 2008 10:02:42 +0200
From:	"Frédéric Weisbecker" <fweisbec@...il.com>
To:	"Török Edwin" <edwintorok@...il.com>
Cc:	mingo@...e.hu, srostedt@...hat.com, a.p.zijlstra@...llo.nl,
	sandmann@...mi.au.dk, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] Add support for userspace stacktraces in tracing/iter_ctrl

2008/10/12 Török Edwin <edwintorok@...il.com>:
> Hello,
>
> This function is called from ftrace, as such I could be holding a
> spinlock. It can also be called from
> __rwsem_do_wake, which takes a spinlock.
> This code is from sysprof's copy_stack_frame. Maybe pagefault_disable()
> is not needed.
>
> Best regards,
> --Edwin

Ok, I didn't see the context that way.
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