This is a note to let you know that I've just added the patch titled
tracing: Add TRACE_ITER_PRINTK flag check in __trace_puts/__trace_bputs
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tracing-add-trace_iter_printk-flag-check-in-__trace_puts-__trace_bputs.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f0160a5a2912267c02cfe692eac955c360de5fdf Mon Sep 17 00:00:00 2001
From: "zhangwei(Jovi)" <jovi.zhangwei@xxxxxxxxxx>
Date: Thu, 18 Jul 2013 16:31:18 +0800
Subject: tracing: Add TRACE_ITER_PRINTK flag check in __trace_puts/__trace_bputs
From: "zhangwei(Jovi)" <jovi.zhangwei@xxxxxxxxxx>
commit f0160a5a2912267c02cfe692eac955c360de5fdf upstream.
The TRACE_ITER_PRINTK check in __trace_puts/__trace_bputs is missing,
so add it, to be consistent with __trace_printk/__trace_bprintk.
Those functions are all called by the same function: trace_printk().
Link: http://lkml.kernel.org/p/51E7A7D6.8090900@xxxxxxxxxx
Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@xxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
kernel/trace/trace.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -456,6 +456,9 @@ int __trace_puts(unsigned long ip, const
int alloc;
int pc;
+ if (!(trace_flags & TRACE_ITER_PRINTK))
+ return 0;
+
pc = preempt_count();
if (unlikely(tracing_selftest_running || tracing_disabled))
@@ -503,6 +506,9 @@ int __trace_bputs(unsigned long ip, cons
int size = sizeof(struct bputs_entry);
int pc;
+ if (!(trace_flags & TRACE_ITER_PRINTK))
+ return 0;
+
pc = preempt_count();
if (unlikely(tracing_selftest_running || tracing_disabled))
Patches currently in stable-queue which might be from jovi.zhangwei@xxxxxxxxxx are
queue-3.14/tracing-add-trace_iter_printk-flag-check-in-__trace_puts-__trace_bputs.patch
queue-3.14/tracing-add-ftrace_trace_stack-into-__trace_puts-__trace_bputs.patch
queue-3.14/tracing-instance_rmdir-leaks-ftrace_event_file-filter.patch
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