[3.13.y.z extended stable] Patch "printk: rename printk_sched to printk_deferred" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    printk: rename printk_sched to printk_deferred

to the linux-3.13.y-queue branch of the 3.13.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.11.6.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 8341e6502d9abb62107b14c47fbaad0330c92199 Mon Sep 17 00:00:00 2001
From: John Stultz <john.stultz at linaro.org>
Date: Wed, 4 Jun 2014 16:11:40 -0700
Subject: printk: rename printk_sched to printk_deferred

commit aac74dc495456412c4130a1167ce4beb6c1f0b38 upstream.

After learning we'll need some sort of deferred printk functionality in
the timekeeping core, Peter suggested we rename the printk_sched function
so it can be reused by needed subsystems.

This only changes the function name. No logic changes.

Signed-off-by: John Stultz <john.stultz at linaro.org>
Reviewed-by: Steven Rostedt <rostedt at goodmis.org>
Cc: Jan Kara <jack at suse.cz>
Cc: Peter Zijlstra <peterz at infradead.org>
Cc: Jiri Bohac <jbohac at suse.cz>
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: Ingo Molnar <mingo at redhat.com>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>
[ luis: prereq for 504d58745c9c ("timer: Fix lock inversion between
  hrtimer_bases.lock and scheduler locks"); backported to 3.11:
  - dropped changes to kernel/sched/deadline.c ]
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>

Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 include/linux/printk.h | 6 +++---
 kernel/printk/printk.c | 2 +-
 kernel/sched/core.c    | 2 +-
 kernel/sched/rt.c      | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/linux/printk.h b/include/linux/printk.h
index 6949258..1864d94 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -124,9 +124,9 @@ asmlinkage __printf(1, 2) __cold
 int printk(const char *fmt, ...);

 /*
- * Special printk facility for scheduler use only, _DO_NOT_USE_ !
+ * Special printk facility for scheduler/timekeeping use only, _DO_NOT_USE_ !
  */
-__printf(1, 2) __cold int printk_sched(const char *fmt, ...);
+__printf(1, 2) __cold int printk_deferred(const char *fmt, ...);

 /*
  * Please don't use printk_ratelimit(), because it shares ratelimiting state
@@ -161,7 +161,7 @@ int printk(const char *s, ...)
 	return 0;
 }
 static inline __printf(1, 2) __cold
-int printk_sched(const char *s, ...)
+int printk_deferred(const char *s, ...)
 {
 	return 0;
 }
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 97fb834..9dbf3a1 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2469,7 +2469,7 @@ void wake_up_klogd(void)
 	preempt_enable();
 }

-int printk_sched(const char *fmt, ...)
+int printk_deferred(const char *fmt, ...)
 {
 	unsigned long flags;
 	va_list args;
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index c677510..0a90d12 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1321,7 +1321,7 @@ out:
 		 * leave kernel.
 		 */
 		if (p->mm && printk_ratelimit()) {
-			printk_sched("process %d (%s) no longer affine to cpu%d\n",
+			printk_deferred("process %d (%s) no longer affine to cpu%d\n",
 					task_pid_nr(p), p->comm, cpu);
 		}
 	}
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 1c40655..721d4c0 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -829,7 +829,7 @@ static int sched_rt_runtime_exceeded(struct rt_rq *rt_rq)

 			if (!once) {
 				once = true;
-				printk_sched("sched: RT throttling activated\n");
+				printk_deferred("sched: RT throttling activated\n");
 			}
 		} else {
 			/*
--
1.9.1