Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.1 127/127] arm64: restore bogomips information in /proc/cpuinfo | Date | Wed, 27 Jan 2016 10:14:51 -0800 |
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4.1-stable review patch. If anyone has any objections, please let me know.
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From: Yang Shi <yang.shi@linaro.org>
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@linaro.org> Acked-by: Will Deacon <will.deacon@arm.com> Cc: <stable@vger.kernel.org> # 3.12+ Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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)
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