linux-kernel - [PATCH 0/4] uprobes: remove is_swbp_at

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Message-ID: <20120923201921.GA27424@redhat.com>
Date:	Sun, 23 Sep 2012 22:19:21 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc:	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Anton Arapov <anton@...hat.com>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/4] uprobes: remove is_swbp_at_addr() from
	register/unregister

Hello.

1. the usage of is_swbp_at_addr() is confusing. This series tries
   to answer the questions we got during the discussion about
   powerpc port which has multiple trap insns.

   Ananth, please review too ;) at least the changelog in 1/4.

   Note: the changelog doesn't mention is_swbp_insn(). If powerpc
   wants to change it, we need 2 helpers for verify_opcode() and
   for is_swbp_at_addr().

2. This is also preparation for the pre-filtering I am working on.

   In particular, this series tries to make clear the fact that
   register/unregister should be "idempotent".

Oleg.

 kernel/events/uprobes.c |  165 +++++++++++++++++------------------------------
 1 files changed, 59 insertions(+), 106 deletions(-)

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