* [GIT PULL v3] tracing: A couple of minor fixes
@ 2019-10-23 18:03 Steven Rostedt
2019-10-24 10:25 ` pr-tracker-bot
0 siblings, 1 reply; 2+ messages in thread
From: Steven Rostedt @ 2019-10-23 18:03 UTC (permalink / raw)
To: Linus Torvalds
Cc: LKML, Ingo Molnar, Andrew Morton, Zhengjun Xing, Prateek Sood
Linus,
[ Hopefully the change log of the last commit is good enough ]
Two minor fixes:
- A race in perf trace initialization (missing mutexes)
- Minor fix to represent gfp_t in synthetic events as properly signed
Please pull the latest trace-v5.4-rc3-3 tree, which can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
trace-v5.4-rc3-3
Tag SHA1: abdeb1c7a64b38c5259c46978c103afe7d5b000c
Head SHA1: 6b1340cc00edeadd52ebd8a45171f38c8de2a387
Prateek Sood (1):
tracing: Fix race in perf_trace_buf initialization
Zhengjun Xing (1):
tracing: Fix "gfp_t" format for synthetic events
----
kernel/trace/trace_event_perf.c | 4 ++++
kernel/trace/trace_events_hist.c | 2 ++
2 files changed, 6 insertions(+)
---------------------------
diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c
index 0892e38ed6fb..a9dfa04ffa44 100644
--- a/kernel/trace/trace_event_perf.c
+++ b/kernel/trace/trace_event_perf.c
@@ -272,9 +272,11 @@ int perf_kprobe_init(struct perf_event *p_event, bool is_retprobe)
goto out;
}
+ mutex_lock(&event_mutex);
ret = perf_trace_event_init(tp_event, p_event);
if (ret)
destroy_local_trace_kprobe(tp_event);
+ mutex_unlock(&event_mutex);
out:
kfree(func);
return ret;
@@ -282,8 +284,10 @@ int perf_kprobe_init(struct perf_event *p_event, bool is_retprobe)
void perf_kprobe_destroy(struct perf_event *p_event)
{
+ mutex_lock(&event_mutex);
perf_trace_event_close(p_event);
perf_trace_event_unreg(p_event);
+ mutex_unlock(&event_mutex);
destroy_local_trace_kprobe(p_event->tp_event);
}
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 57648c5aa679..7482a1466ebf 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -679,6 +679,8 @@ static bool synth_field_signed(char *type)
{
if (str_has_prefix(type, "u"))
return false;
+ if (strcmp(type, "gfp_t") == 0)
+ return false;
return true;
}
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [GIT PULL v3] tracing: A couple of minor fixes
2019-10-23 18:03 [GIT PULL v3] tracing: A couple of minor fixes Steven Rostedt
@ 2019-10-24 10:25 ` pr-tracker-bot
0 siblings, 0 replies; 2+ messages in thread
From: pr-tracker-bot @ 2019-10-24 10:25 UTC (permalink / raw)
To: Steven Rostedt
Cc: Linus Torvalds, LKML, Ingo Molnar, Andrew Morton, Zhengjun Xing,
Prateek Sood
The pull request you sent on Wed, 23 Oct 2019 14:03:17 -0400:
> git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git trace-v5.4-rc3-3
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/fa8a74de0622e97c7d0c9dff8bf6718548bd6e45
Thank you!
--
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2019-10-24 10:25 ` pr-tracker-bot
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