From: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
To: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Jim Keniston <jkenisto@us.ibm.com>,
David Miller <davem@davemloft.net>,
Rusty Russell <rusty@rustcorp.com.au>,
LKML <linux-kernel@vger.kernel.org>,
systemtap-ml <systemtap@sources.redhat.com>
Subject: Re: [PATCH 4/7] kprobes: Support probing module __exit function
Date: Wed, 12 Nov 2008 21:26:29 +0530 [thread overview]
Message-ID: <20081112155629.GC5199@in.ibm.com> (raw)
In-Reply-To: <4919F19A.9050904@redhat.com>
On Tue, Nov 11, 2008 at 03:56:58PM -0500, Masami Hiramatsu wrote:
> Allows kprobes to probe __exit routine.
> This adds flags member to struct kprobe. When module is freed(kprobes hooks
> module_notifier to get this event), kprobes which probe the functions in
> that module are set to "Gone" flag to the flags member. These "Gone" probes
> are never be enabled.
> Users can check the GONE flag through debugfs.
>
> This also removes mod_refcounted, because we couldn't free a module if
> kprobe incremented the refcount of that module.
>
> Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
next prev parent reply other threads:[~2008-11-12 15:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-11 20:56 [PATCH 4/7] kprobes: Support probing module __exit function Masami Hiramatsu
2008-11-12 15:56 ` Ananth N Mavinakayanahalli [this message]
2008-11-14 0:27 ` Andrew Morton
2008-11-14 4:51 ` Ananth N Mavinakayanahalli
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