From: Srinivasa Ds <srinivasa@in.ibm.com>
Date: Sat, 23 Feb 2008 23:24:04 +0000 (-0800)
Subject: kprobes: refuse kprobe insertion on add/sub_preempt_counter()
X-Git-Tag: v2.6.25-rc3~28
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=43627582799db317e966ecb0002c2c3c9805ec0f;p=pandora-kernel.git

kprobes: refuse kprobe insertion on add/sub_preempt_counter()

Kprobes makes use of preempt_disable(),preempt_enable_noresched() and these
functions inturn call add/sub_preempt_count().  So we need to refuse user from
inserting probe in to these functions.

This patch disallows user from probing add/sub_preempt_count().

Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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