From: Frederic Weisbecker <fweisbec@gmail.com>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@elte.hu>,
Jason Baron <jbaron@redhat.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] trace_syscalls: add missed field
Date: Thu, 26 Nov 2009 23:31:56 +0100 [thread overview]
Message-ID: <20091126223153.GA7177@nowhere> (raw)
In-Reply-To: <4B0E330D.1070206@cn.fujitsu.com>
On Thu, Nov 26, 2009 at 03:49:33PM +0800, Lai Jiangshan wrote:
>
> Field syscall number is missed in syscall_enter_define_fields()/
> syscall_exit_define_fields().
>
> syscall number is also needed for event filter or other users.
>
> Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Well, I don't think it's very useful for in-kernel filtering.
Filtering a syscall event by its number would mean filtering all
event for this syscall. This is the same as not tracing it.
Or do you have other usecases in mind?
Thanks.
next prev parent reply other threads:[~2009-11-26 22:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-26 7:49 [PATCH] trace_syscalls: add missed field Lai Jiangshan
2009-11-26 22:31 ` Frederic Weisbecker [this message]
2009-11-27 4:02 ` Lai Jiangshan
2009-11-27 4:15 ` Frederic Weisbecker
2009-11-27 5:49 ` [tip:perf/core] trace_syscalls: Add syscall nr field tip-bot for Lai Jiangshan
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