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tracing: Remove unused tracing option "ftrace_preempt"

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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>
This commit is contained in:
Steven Rostedt (Red Hat) 2015-09-28 16:21:55 -04:00 committed by Steven Rostedt
parent 03905582fd
commit 938db5f569
2 changed files with 16 additions and 18 deletions
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1
kernel/trace/trace.c
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@ -866,7 +866,6 @@ static const char *trace_options[] = {
"block",
"stacktrace",
"trace_printk",
"ftrace_preempt",
"branch",
"annotate",
"userstacktrace",

33
kernel/trace/trace.h
View File

@ -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,
};
/*