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Date: Wed, 11 Feb 2009 18:16:19 +0900
From: Tejun Heo <tj@kernel.org>
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To: Ingo Molnar <mingo@elte.hu>
CC: Frederic Weisbecker <fweisbec@gmail.com>,
       Steven Rostedt <rostedt@goodmis.org>,
       LKML <linux-kernel@vger.kernel.org>,
       Andrew Morton <akpm@linux-foundation.org>,
       "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: git pull request for tip/tracing/urgent
References: <alpine.DEB.1.10.0902101314440.23505@gandalf.stny.rr.com> <20090210183046.GA1342@nowhere> <alpine.DEB.1.10.0902101724190.23505@gandalf.stny.rr.com> <20090211012856.GA4921@nowhere> <20090211090229.GG21105@elte.hu>
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Hello,

Ingo Molnar wrote:
> This bit:
> 
>   	".section .fixup, \"ax\"\n"
>  	"4: movl $1, %[faulted]\n"
>  	"   jmp 3b\n"
>  	".previous\n"
> 
> Can be thought of as an 'embedded' or 'nested' section - the '.previous'
> directive jumps back to whatever section we were in before. This can be
> nested multiple times too:
> 
>    .section A
>    [...]
>      .section B
>      [...]
>         .section C
>         [...]
>         .previous
>      [...]
>      .previous
>    [...]
>    .previous

That will result in...

 A->B->C->B->C->B

.pushsection and .popsection should be used for nesting, right?

Thanks.

-- 
tejun