This is a note to let you know that I've just added the patch titled
arm64: restore bogomips information in /proc/cpuinfo
to the 4.1-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:
arm64-restore-bogomips-information-in-proc-cpuinfo.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 92e788b749862ebe9920360513a718e5dd4da7a9 Mon Sep 17 00:00:00 2001
From: Yang Shi <yang.shi@xxxxxxxxxx>
Date: Wed, 18 Nov 2015 10:48:55 -0800
Subject: arm64: restore bogomips information in /proc/cpuinfo
From: Yang Shi <yang.shi@xxxxxxxxxx>
commit 92e788b749862ebe9920360513a718e5dd4da7a9 upstream.
As previously reported, some userspace applications depend on bogomips
showed by /proc/cpuinfo. Although there is much less legacy impact on
aarch64 than arm, it does break libvirt.
This patch reverts commit 326b16db9f69 ("arm64: delay: don't bother
reporting bogomips in /proc/cpuinfo"), but with some tweak due to
context change and without the pr_info().
Fixes: 326b16db9f69 ("arm64: delay: don't bother reporting bogomips in /proc/cpuinfo")
Signed-off-by: Yang Shi <yang.shi@xxxxxxxxxx>
Acked-by: Will Deacon <will.deacon@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 3.12+
Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/kernel/setup.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -523,6 +523,10 @@ static int c_show(struct seq_file *m, vo
seq_printf(m, "processor\t: %d\n", i);
#endif
+ seq_printf(m, "BogoMIPS\t: %lu.%02lu\n",
+ loops_per_jiffy / (500000UL/HZ),
+ loops_per_jiffy / (5000UL/HZ) % 100);
+
/*
* Dump out the common processor features in a single line.
* Userspace should read the hwcaps with getauxval(AT_HWCAP)
Patches currently in stable-queue which might be from yang.shi@xxxxxxxxxx are
queue-4.1/arm64-restore-bogomips-information-in-proc-cpuinfo.patch
queue-4.1/arm64-bpf-fix-mod-by-zero-case.patch
queue-4.1/arm64-bpf-fix-div-by-zero-case.patch
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