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fix cargo clippy warning in cgroups #291

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merged 1 commit into from
Sep 10, 2021
Merged

fix cargo clippy warning in cgroups #291

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19 changes: 11 additions & 8 deletions cgroups/src/v2/memory.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -100,19 +100,22 @@ impl Memory {
// -1 means max
if swap == -1 || limit == -1 {
Memory::set(path.join(CGROUP_MEMORY_SWAP), swap)?;
Memory::set(path.join(CGROUP_MEMORY_MAX), limit)?;
} else {
if swap < limit {
bail!("swap memory ({}) should be bigger than memory limit ({})", swap, limit);
bail!(
"swap memory ({}) should be bigger than memory limit ({})",
swap,
limit
);
}

// In cgroup v1 swap is memory+swap, but in cgroup v2 swap is
// a separate value, so the swap value in the runtime spec needs
// to be converted from the cgroup v1 value to the cgroup v2 value
// a separate value, so the swap value in the runtime spec needs
// to be converted from the cgroup v1 value to the cgroup v2 value
// by subtracting limit from swap
Memory::set(path.join(CGROUP_MEMORY_SWAP), swap - limit)?;
Memory::set(path.join(CGROUP_MEMORY_MAX), limit)?;
}
}
Memory::set(path.join(CGROUP_MEMORY_MAX), limit)?;
}
None => {
if limit == -1 {
Expand Down Expand Up @@ -331,7 +334,7 @@ mod tests {
swap_content == swap.to_string()
} else {
swap_content == (swap - linux_memory.limit.unwrap()).to_string()
}
}
} else {
false
}
Expand Down