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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-15 13:49:34 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-15 13:49:34 -0800
commit179a7ba6806805bd4cd7a5e4574b83353c5615ad (patch)
tree58855a59ba3bd66f947c3f9781cd44a7329c7d75 /arch/powerpc
parent5e176d6973bdac04d9f298ca384c39f08eb084cb (diff)
parent3dbb16b87b57bb1088044ad2a0432e4769075002 (diff)
Merge tag 'trace-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt: "This release has a few updates: - STM can hook into the function tracer - Function filtering now supports more advance glob matching - Ftrace selftests updates and added tests - Softirq tag in traces now show only softirqs - ARM nop added to non traced locations at compile time - New trace_marker_raw file that allows for binary input - Optimizations to the ring buffer - Removal of kmap in trace_marker - Wakeup and irqsoff tracers now adhere to the set_graph_notrace file - Other various fixes and clean ups" * tag 'trace-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (42 commits) selftests: ftrace: Shift down default message verbosity kprobes/trace: Fix kprobe selftest for newer gcc tracing/kprobes: Add a helper method to return number of probe hits tracing/rb: Init the CPU mask on allocation tracing: Use SOFTIRQ_OFFSET for softirq dectection for more accurate results tracing/fgraph: Have wakeup and irqsoff tracers ignore graph functions too fgraph: Handle a case where a tracer ignores set_graph_notrace tracing: Replace kmap with copy_from_user() in trace_marker writing ftrace/x86_32: Set ftrace_stub to weak to prevent gcc from using short jumps to it tracing: Allow benchmark to be enabled at early_initcall() tracing: Have system enable return error if one of the events fail tracing: Do not start benchmark on boot up tracing: Have the reg function allow to fail ring-buffer: Force rb_end_commit() and rb_set_commit_to_write() inline ring-buffer: Froce rb_update_write_stamp() to be inlined ring-buffer: Force inline of hotpath helper functions tracing: Make __buffer_unlock_commit() always_inline tracing: Make tracepoint_printk a static_key ring-buffer: Always inline rb_event_data() ring-buffer: Make rb_reserve_next_event() always inlined ...
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/trace.h4
-rw-r--r--arch/powerpc/platforms/powernv/opal-tracepoints.c6
-rw-r--r--arch/powerpc/platforms/pseries/lpar.c6
3 files changed, 10 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/trace.h b/arch/powerpc/include/asm/trace.h
index 32e36b16773f..c05cef6ee06c 100644
--- a/arch/powerpc/include/asm/trace.h
+++ b/arch/powerpc/include/asm/trace.h
@@ -54,7 +54,7 @@ DEFINE_EVENT(ppc64_interrupt_class, timer_interrupt_exit,
);
#ifdef CONFIG_PPC_PSERIES
-extern void hcall_tracepoint_regfunc(void);
+extern int hcall_tracepoint_regfunc(void);
extern void hcall_tracepoint_unregfunc(void);
TRACE_EVENT_FN_COND(hcall_entry,
@@ -104,7 +104,7 @@ TRACE_EVENT_FN_COND(hcall_exit,
#endif
#ifdef CONFIG_PPC_POWERNV
-extern void opal_tracepoint_regfunc(void);
+extern int opal_tracepoint_regfunc(void);
extern void opal_tracepoint_unregfunc(void);
TRACE_EVENT_FN(opal_entry,
diff --git a/arch/powerpc/platforms/powernv/opal-tracepoints.c b/arch/powerpc/platforms/powernv/opal-tracepoints.c
index 1e496b780efd..3c447002edff 100644
--- a/arch/powerpc/platforms/powernv/opal-tracepoints.c
+++ b/arch/powerpc/platforms/powernv/opal-tracepoints.c
@@ -6,9 +6,10 @@
#ifdef HAVE_JUMP_LABEL
struct static_key opal_tracepoint_key = STATIC_KEY_INIT;
-void opal_tracepoint_regfunc(void)
+int opal_tracepoint_regfunc(void)
{
static_key_slow_inc(&opal_tracepoint_key);
+ return 0;
}
void opal_tracepoint_unregfunc(void)
@@ -25,9 +26,10 @@ void opal_tracepoint_unregfunc(void)
/* NB: reg/unreg are called while guarded with the tracepoints_mutex */
extern long opal_tracepoint_refcount;
-void opal_tracepoint_regfunc(void)
+int opal_tracepoint_regfunc(void)
{
opal_tracepoint_refcount++;
+ return 0;
}
void opal_tracepoint_unregfunc(void)
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index f2c98f6c1c9c..a78da511ffeb 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -661,9 +661,10 @@ EXPORT_SYMBOL(arch_free_page);
#ifdef HAVE_JUMP_LABEL
struct static_key hcall_tracepoint_key = STATIC_KEY_INIT;
-void hcall_tracepoint_regfunc(void)
+int hcall_tracepoint_regfunc(void)
{
static_key_slow_inc(&hcall_tracepoint_key);
+ return 0;
}
void hcall_tracepoint_unregfunc(void)
@@ -680,9 +681,10 @@ void hcall_tracepoint_unregfunc(void)
/* NB: reg/unreg are called while guarded with the tracepoints_mutex */
extern long hcall_tracepoint_refcount;
-void hcall_tracepoint_regfunc(void)
+int hcall_tracepoint_regfunc(void)
{
hcall_tracepoint_refcount++;
+ return 0;
}
void hcall_tracepoint_unregfunc(void)