From: Steven Rostedt (Red Hat) <rostedt@goodmis.org>
Date: Mon, 28 Sep 2015 20:21:55 +0000 (-0400)
Subject: tracing: Remove unused tracing option "ftrace_preempt"
X-Git-Tag: firefly_0821_release~176^2~700^2~61
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=938db5f569247d13910d4542666709623c4253b0;p=firefly-linux-kernel-4.4.55.git

tracing: Remove unused tracing option "ftrace_preempt"

There was a time where the function tracing would disable interrupts unless
specifically told not to, where it would only disable preemption. With the
new lockless code, the function tracing never disalbes interrupts and just
uses disabling of preemption. Remove the option "ftrace_preempt" as it does
nothing anyway.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 9a4ef5afb41c..f2fbf610d20e 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -866,7 +866,6 @@ static const char *trace_options[] = {
 	"block",
 	"stacktrace",
 	"trace_printk",
-	"ftrace_preempt",
 	"branch",
 	"annotate",
 	"userstacktrace",
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index dfa3cd2feb22..19d5c411d4ec 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -897,23 +897,22 @@ enum trace_iterator_flags {
 	TRACE_ITER_BLOCK		= 0x80,
 	TRACE_ITER_STACKTRACE		= 0x100,
 	TRACE_ITER_PRINTK		= 0x200,
-	TRACE_ITER_PREEMPTONLY		= 0x400,
-	TRACE_ITER_BRANCH		= 0x800,
-	TRACE_ITER_ANNOTATE		= 0x1000,
-	TRACE_ITER_USERSTACKTRACE       = 0x2000,
-	TRACE_ITER_SYM_USEROBJ          = 0x4000,
-	TRACE_ITER_PRINTK_MSGONLY	= 0x8000,
-	TRACE_ITER_CONTEXT_INFO		= 0x10000, /* Print pid/cpu/time */
-	TRACE_ITER_LATENCY_FMT		= 0x20000,
-	TRACE_ITER_SLEEP_TIME		= 0x40000,
-	TRACE_ITER_GRAPH_TIME		= 0x80000,
-	TRACE_ITER_RECORD_CMD		= 0x100000,
-	TRACE_ITER_OVERWRITE		= 0x200000,
-	TRACE_ITER_STOP_ON_FREE		= 0x400000,
-	TRACE_ITER_IRQ_INFO		= 0x800000,
-	TRACE_ITER_MARKERS		= 0x1000000,
-	TRACE_ITER_FUNCTION		= 0x2000000,
-	TRACE_ITER_DISPLAY_GRAPH	= 0x4000000,
+	TRACE_ITER_BRANCH		= 0x400,
+	TRACE_ITER_ANNOTATE		= 0x800,
+	TRACE_ITER_USERSTACKTRACE       = 0x1000,
+	TRACE_ITER_SYM_USEROBJ          = 0x2000,
+	TRACE_ITER_PRINTK_MSGONLY	= 0x4000,
+	TRACE_ITER_CONTEXT_INFO		= 0x8000, /* Print pid/cpu/time */
+	TRACE_ITER_LATENCY_FMT		= 0x10000,
+	TRACE_ITER_SLEEP_TIME		= 0x20000,
+	TRACE_ITER_GRAPH_TIME		= 0x40000,
+	TRACE_ITER_RECORD_CMD		= 0x80000,
+	TRACE_ITER_OVERWRITE		= 0x100000,
+	TRACE_ITER_STOP_ON_FREE		= 0x200000,
+	TRACE_ITER_IRQ_INFO		= 0x400000,
+	TRACE_ITER_MARKERS		= 0x800000,
+	TRACE_ITER_FUNCTION		= 0x1000000,
+	TRACE_ITER_DISPLAY_GRAPH	= 0x2000000,
 };
 
 /*