[merged mm-nonmm-stable] proc-stat-remove-arch_idle_time.patch removed from -mm tree

[Andrew Morton <akpm@linux-foundation.org>]

The quilt patch titled
     Subject: proc/stat: remove arch_idle_time()
has been removed from the -mm tree.  Its filename was
     proc-stat-remove-arch_idle_time.patch

This patch was dropped because it was merged into the mm-nonmm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Heiko Carstens <hca@linux.ibm.com>
Subject: proc/stat: remove arch_idle_time()
Date: Wed, 5 Apr 2023 16:34:52 +0200

The last (only) architecture specific arch_idle_time() implementation was
removed with commit be76ea614460 ("s390/idle: remove arch_cpu_idle_time()
and corresponding code").

Therefore remove the now dead code in fs/proc/stat.c as well.

Link: https://lkml.kernel.org/r/20230405143452.2677172-1-hca@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/proc/stat.c |   26 --------------------------
 1 file changed, 26 deletions(-)

--- a/fs/proc/stat.c~proc-stat-remove-arch_idle_time
+++ a/fs/proc/stat.c
@@ -22,30 +22,6 @@
 #define arch_irq_stat() 0
 #endif
 
-#ifdef arch_idle_time
-
-u64 get_idle_time(struct kernel_cpustat *kcs, int cpu)
-{
-	u64 idle;
-
-	idle = kcs->cpustat[CPUTIME_IDLE];
-	if (cpu_online(cpu) && !nr_iowait_cpu(cpu))
-		idle += arch_idle_time(cpu);
-	return idle;
-}
-
-static u64 get_iowait_time(struct kernel_cpustat *kcs, int cpu)
-{
-	u64 iowait;
-
-	iowait = kcs->cpustat[CPUTIME_IOWAIT];
-	if (cpu_online(cpu) && nr_iowait_cpu(cpu))
-		iowait += arch_idle_time(cpu);
-	return iowait;
-}
-
-#else
-
 u64 get_idle_time(struct kernel_cpustat *kcs, int cpu)
 {
 	u64 idle, idle_usecs = -1ULL;
@@ -78,8 +54,6 @@ static u64 get_iowait_time(struct kernel
 	return iowait;
 }
 
-#endif
-
 static void show_irq_gap(struct seq_file *p, unsigned int gap)
 {
 	static const char zeros[] = " 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0";
_

Patches currently in -mm which might be from hca@linux.ibm.com are