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rlimit: avoid performing the test and setting limit if its infinite #2032

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rlimit: avoid performing the test and setting limit if its infinite #2032

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6 changes: 6 additions & 0 deletions rlimit/rlimit_linux.go
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,12 @@ func detectMemcgAccounting() error {
return fmt.Errorf("getting original memlock rlimit: %s", err)
}

// If the soft limit is already infinite there is nothing for RemoveMemlock
// to do.
if oldLimit.Cur == unix.RLIM_INFINITY {
return nil
}

// Drop the current limit to zero, maintaining the old Max value.
// This is always permitted by the kernel for unprivileged users.
// Retrieve a new copy of the old limit tuple to minimize the chances
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