linux-kernel - Re: [PATCH v2 06/11] uprobes: Export struct return_instance, introduce arch_uretprobe_is

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Message-ID: <20150710115259.GF26095@linux.vnet.ibm.com>
Date:	Fri, 10 Jul 2015 17:22:59 +0530
From:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
To:	Oleg Nesterov <oleg@...hat.com>, Ingo Molnar <mingo@...nel.org>
Cc:	Ananth Mavinakayanahalli <ananth@...ibm.com>,
	Anton Arapov <arapov@...il.com>,
	David Long <dave.long@...aro.org>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Jan Willeke <willeke@...ibm.com>,
	Jim Keniston <jkenisto@...ibm.com>,
	Mark Wielaard <mjw@...hat.com>,
	Pratyush Anand <panand@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 06/11] uprobes: Export struct return_instance,
 introduce arch_uretprobe_is_alive()

* Oleg Nesterov <oleg@...hat.com> [2015-07-07 03:22:54]:

> Add the new "weak" helper, arch_uretprobe_is_alive(), used by the next
> patches. It should return true if this return_instance is still valid.
> The arch agnostic version just always returns true.
> 
> The patch exports "struct return_instance" for the architectures which
> want to override this hook. We can also cleanup prepare_uretprobe() if
> we pass the new return_instance to arch_uretprobe_hijack_return_addr().
> 
> Signed-off-by: Oleg Nesterov <oleg@...hat.com>

Looks good to me.

Acked-by: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>

-- 
Thanks and Regards
Srikar Dronamraju

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