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authorSteven Rostedt (Red Hat) <srostedt@redhat.com>2013-03-08 03:48:09 (GMT)
committerSteven Rostedt <rostedt@goodmis.org>2013-03-15 04:35:53 (GMT)
commit55034cd6e648155393b0d665eef76b38d49ad6bf (patch)
tree3d51bc6a1f8c7bdf7f728113b3853f4c20441be9 /kernel/trace/trace.h
parentf4e781c0a89d5810729772290441ac7d61f321ec (diff)
downloadlinux-55034cd6e648155393b0d665eef76b38d49ad6bf.tar.xz
tracing: Add alloc_snapshot kernel command line parameter
If debugging the kernel, and the developer wants to use tracing_snapshot() in places where tracing_snapshot_alloc() may be difficult (or more likely, the developer is lazy and doesn't want to bother with tracing_snapshot_alloc() at all), then adding alloc_snapshot to the kernel command line parameter will tell ftrace to allocate the snapshot buffer (if configured) when it allocates the main tracing buffer. I also noticed that ring_buffer_expanded and tracing_selftest_disabled had inconsistent use of boolean "true" and "false" with "0" and "1". I cleaned that up too. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.h')
-rw-r--r--kernel/trace/trace.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index f493182..26bc718 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -660,7 +660,7 @@ extern int DYN_FTRACE_TEST_NAME(void);
#define DYN_FTRACE_TEST_NAME2 trace_selftest_dynamic_test_func2
extern int DYN_FTRACE_TEST_NAME2(void);
-extern int ring_buffer_expanded;
+extern bool ring_buffer_expanded;
extern bool tracing_selftest_disabled;
DECLARE_PER_CPU(int, ftrace_cpu_disabled);