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Date:	Tue, 8 Feb 2011 15:17:17 GMT
From:	tip-bot for Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, hpa@...or.com,
	mingo@...hat.com, acme@...stprotocols.net,
	masami.hiramatsu.pt@...achi.com, fweisbec@...il.com,
	rostedt@...dmis.org, srikar@...ux.vnet.ibm.com, tglx@...utronix.de,
	mingo@...e.hu
Subject: [tip:perf/core] tracing/kprobes: Support longer (>128 bytes) command

Commit-ID:  e3745369986ddcdaa19f70e2d24e658876b97e84
Gitweb:     http://git.kernel.org/tip/e3745369986ddcdaa19f70e2d24e658876b97e84
Author:     Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
AuthorDate: Fri, 4 Feb 2011 21:51:59 +0900
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 7 Feb 2011 09:15:59 -0200

tracing/kprobes: Support longer (>128 bytes) command

Expand command line buffer of kprobe-tracer to 4096 bytes.

Reported-by: Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc: 2nddept-manager@....hitachi.co.jp
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
LKML-Reference: <20110204125159.9507.20895.stgit@...236.sdl.hitachi.co.jp>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 kernel/trace/trace_kprobe.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 2088893..c6ed886 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -1129,7 +1129,7 @@ static int command_trace_probe(const char *buf)
 	return ret;
 }
 
-#define WRITE_BUFSIZE 128
+#define WRITE_BUFSIZE 4096
 
 static ssize_t probes_write(struct file *file, const char __user *buffer,
 			    size_t count, loff_t *ppos)
--
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