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From: Roland McGrath <roland@hack.frob.com>
To: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
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Cc: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@elte.hu>,
        Steven Rostedt <rostedt@goodmis.org>, Linux-mm <linux-mm@kvack.org>,
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        Andi Kleen <andi@firstfloor.org>, Thomas Gleixner <tglx@linutronix.de>,
        Jonathan Corbet <corbet@lwn.net>, Oleg Nesterov <oleg@redhat.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jim Keniston <jkenisto@linux.vnet.ibm.com>,
        Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
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Subject: Re: [PATCH v4 3.0-rc2-tip 14/22] 14: x86: uprobes exception
 notifier for x86.
In-Reply-To: Srikar Dronamraju's message of  Wednesday, 22 June 2011 20:24:24 +0530 <20110622145424.GG16471@linux.vnet.ibm.com>
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> Oleg, Roland, do you know why do_notify_resume() gets called with
> interrupts disabled on i386? 

It was that way for a long time.  My impression was that it was just not
bothering to reenable before do_signal->get_signal_to_deliver would shortly
disable (via spin_lock_irq) anyway.  It's possible there was something more
to it, but I don't know of anything.


Thanks,
Roland
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