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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-11 09:02:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-11 09:02:09 -0700
commitc72bb316916b1a6cf35e1d5238566ef27b0b7f80 (patch)
tree1bd7bb147302abf907bba9fb83cf74b4a5b6ef0d /include
parent6d128e1e72bf082542e85f72e6b7ddd704193588 (diff)
parentdcc302232c1f9b3ca16f6b8ee190eb0b1a8a0da3 (diff)
Merge tag 'trace-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing changes from Steven Rostedt: "The majority of the changes here are cleanups for the large changes that were added to 3.10, which includes several bug fixes that have been marked for stable. As for new features, there were a few, but nothing to write to LWN about. These include: New function trigger called "dump" and "cpudump" that will cause ftrace to dump its buffer to the console when the function is called. The difference between "dump" and "cpudump" is that "dump" will dump the entire contents of the ftrace buffer, where as "cpudump" will only dump the contents of the ftrace buffer for the CPU that called the function. Another small enhancement is a new sysctl switch called "traceoff_on_warning" which, when enabled, will disable tracing if any WARN_ON() is triggered. This is useful if you want to debug what caused a warning and do not want to risk losing your trace data by the ring buffer overwriting the data before you can disable it. There's also a kernel command line option that will make this enabled at boot up called the same thing" * tag 'trace-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (34 commits) tracing: Make tracing_open_generic_{tr,tc}() static tracing: Remove ftrace() function tracing: Remove TRACE_EVENT_TYPE enum definition tracing: Make tracer_tracing_{off,on,is_on}() static tracing: Fix irqs-off tag display in syscall tracing uprobes: Fix return value in error handling path tracing: Fix race between deleting buffer and setting events tracing: Add trace_array_get/put() to event handling tracing: Get trace_array ref counts when accessing trace files tracing: Add trace_array_get/put() to handle instance refs better tracing: Protect ftrace_trace_arrays list in trace_events.c tracing: Make trace_marker use the correct per-instance buffer ftrace: Do not run selftest if command line parameter is set tracing/kprobes: Don't pass addr=ip to perf_trace_buf_submit() tracing: Use flag buffer_disabled for irqsoff tracer tracing/kprobes: Turn trace_probe->files into list_head tracing: Fix disabling of soft disable tracing: Add missing syscall_metadata comment tracing: Simplify code for showing of soft disabled flag tracing/kprobes: Kill probe_enable_lock ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/ftrace.h9
-rw-r--r--include/trace/syscall.h1
2 files changed, 6 insertions, 4 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 99d0fbcbaf7..9f15c0064c5 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -566,10 +566,6 @@ static inline ssize_t ftrace_filter_write(struct file *file, const char __user *
size_t cnt, loff_t *ppos) { return -ENODEV; }
static inline ssize_t ftrace_notrace_write(struct file *file, const char __user *ubuf,
size_t cnt, loff_t *ppos) { return -ENODEV; }
-static inline loff_t ftrace_regex_lseek(struct file *file, loff_t offset, int whence)
-{
- return -ENODEV;
-}
static inline int
ftrace_regex_release(struct inode *inode, struct file *file) { return -ENODEV; }
#endif /* CONFIG_DYNAMIC_FTRACE */
@@ -828,10 +824,15 @@ enum ftrace_dump_mode;
extern enum ftrace_dump_mode ftrace_dump_on_oops;
+extern void disable_trace_on_warning(void);
+extern int __disable_trace_on_warning;
+
#ifdef CONFIG_PREEMPT
#define INIT_TRACE_RECURSION .trace_recursion = 0,
#endif
+#else /* CONFIG_TRACING */
+static inline void disable_trace_on_warning(void) { }
#endif /* CONFIG_TRACING */
#ifndef INIT_TRACE_RECURSION
diff --git a/include/trace/syscall.h b/include/trace/syscall.h
index 84bc4197e73..fed853f3d7a 100644
--- a/include/trace/syscall.h
+++ b/include/trace/syscall.h
@@ -16,6 +16,7 @@
* @nb_args: number of parameters it takes
* @types: list of types as strings
* @args: list of args as strings (args[i] matches types[i])
+ * @enter_fields: list of fields for syscall_enter trace event
* @enter_event: associated syscall_enter trace event
* @exit_event: associated syscall_exit trace event
*/