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config-linux: update type of LinuxCPU.Idle to *int64 #1146

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merged 1 commit into from Apr 28, 2022

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wineway
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@wineway wineway commented Apr 24, 2022

the config values should contain a value that means "do not modify it" within its range of values. for int64 in other cases, we usually use 0 to express this meaning, but in cpu.idle, 0 can not be regarded as this meaning.

by changing the type from int64to *int64, we can use nil solve this problem

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wineway commented Apr 24, 2022

😂I found this when I try to implement it, if we keep this type, we can only choose a value like -1 to mark it does not need to modify, but -1 might be used by the kernel in the future, and also ugly

and add cpu.idle to example in config.md

Signed-off-by: wineway <wangyuweihx@gmail.com>
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@giuseppe giuseppe left a comment

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LGTM

@wineway wineway changed the title config-linux: update cpu.Idle type of LinuxCPU to *int64 config-linux: update type of LinuxCPU.Idle to *int64 Apr 24, 2022
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@tianon tianon left a comment

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LGTM (and matches the description in https://github.com/opencontainers/runtime-spec/blob/2cf6663ca299f8454318ea7c797a8039d013fe8c/config-linux.md#cpu, which IMO doesn't need any updates beyond the OPTIONAL it already has)

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4 participants