linux-kernel - [PATCH] Fix writing to trace/trace

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Date:	Sun, 16 Nov 2008 16:07:58 +0530
From:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	rostedt@...dmis.org, mingo@...e.hu, akpm@...ux-foundation.org,
	fweisbec@...il.com
Cc:	linux-kernel@...r.kernel.org,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: [PATCH] Fix writing to trace/trace_options

writing to trace/trace_options use the index of the array
to find the value of the flag. With branch tracer flag
defined conditionally, this breaks writing to trace_options
with branch tracer disabled.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>

---
 kernel/trace/trace.c |    2 --
 kernel/trace/trace.h |    2 --
 2 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 004aafd..ef7fe15 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -259,9 +259,7 @@ static const char *trace_options[] = {
 	"sched-tree",
 	"ftrace_printk",
 	"ftrace_preempt",
-#ifdef CONFIG_BRANCH_TRACER
 	"branch",
-#endif
 	"annotate",
 	"dump",
 	NULL
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index b24d350..d048b63 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -481,9 +481,7 @@ enum trace_iterator_flags {
 	TRACE_ITER_SCHED_TREE		= 0x200,
 	TRACE_ITER_PRINTK		= 0x400,
 	TRACE_ITER_PREEMPTONLY		= 0x800,
-#ifdef CONFIG_BRANCH_TRACER
 	TRACE_ITER_BRANCH		= 0x1000,
-#endif
 	TRACE_ITER_ANNOTATE		= 0x2000,
 	TRACE_ITER_DUMP			= 0x4000,
 };
-- 
tg: (e186e8e..) an/branch-tracer-fix.patch (depends on: an/ext4-ftrace-test.patch)
--
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