From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Date: Sun, 30 Jul 2006 10:03:21 +0000 (-0700)
Subject: [PATCH] kprobe-booster: disable in preemptible kernel
X-Git-Tag: v2.6.18-rc4~136
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c39df470e04822965d945473d831786ab79dd4cd;p=pandora-kernel.git

[PATCH] kprobe-booster: disable in preemptible kernel

The kprobe-booster's safety check against preemption does not work well
now, because the preemption count has been modified by read_rcu_lock() in
atomic_notifier_call_chain() before we check it.  So, I'd like to prevent
boosting kprobe temporarily if the kernel is preemptable.

Now we are searching for the good solution.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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