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This adds parse_nice() that parses a nice level and ensures it is in the right
range, via a new nice_is_valid() helper. It then ports over a number of users
to this.
No functional changes.
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This permits CPUQuota to accept greater values as documented.
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And port a couple of users over to it.
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This should be handled fine now by .dir-locals.el, so need to carry that
stuff in every file.
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Compare errno with zero in a way that tells gcc that
(if the condition is true) errno is positive.
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My previous patch to only include what we use accidentially placed
the added inlcudes in non-sorted order.
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This is a cleaned up result of running iwyu but without forward
declarations on src/basic.
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x86-32
strtoull() doesn't make it particularly easy to detect passed-in
negative numbers, as it silently converts them to positive ones without
generating any error. Since we are not interested in negative values we
should hence explicitly filter them out by looking at the string
directly and returning ERANGE if we see a leading "-".
Fixes: #1829
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We have enough places where we parse an ifindex, hence introduce a
proper parsing function for it, that verifies all parameters.
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This function will be useful for CPUAffinity settings that involve
ranges of CPUs.
Make it generic and include test coverage to prevent regressions.
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