Messages in this thread | | | From | 'Guanjun' <> | Subject | [PATCH 0/1] cpufreq: Fix show()/store() issue for hotplugging | Date | Wed, 19 Oct 2022 16:40:44 +0800 |
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From: Zelin Deng <zelin.deng@linux.alibaba.com>
Hello maintainers,
After I brought one CPU (64) offline, I got failure when I used lscpu: lscpu: cannot read /sys/devices/system/cpu/cpu64/cpufreq/cpuinfo_max_freq: Device or resource busy
I found in commit d4627a287e251, policy_is_inactive() check was added to avoid the case in which policy initialization failed. However it didn't consider the situation in which policy has been created successfully but is not inactive: CPU is hotplugging offline.
This patch just add an addtional check whether CPU is online or not to fix the issue.
Zelin Deng (1): cpufreq: Fix show()/store() issue for hotplugging offline CPU
drivers/cpufreq/cpufreq.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-)
-- 2.32.0.GIT
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