As far as I understand the package linux-headers should contain the file ioprio.h from the kernel sources as it defines several macros for io priority settings in applications Reproducible: Always Steps to Reproduce: 1. equery files linux-headers | grep ioprio.h 2. no result Actual Results: not found Expected Results: file should exist in this package
$ grep -c ioprio.h include/linux/Kbuild 0 upstream currently does not intend for it to be installed. it'd need some __KERNEL__ additions before it'd be clean to do so. best to e-mail linux-kernel@vger.kernel.org with your request.