On Mon, Sep 11, 2023 at 12:01 PM Benjamin Stürz <benni+open...@stuerz.xyz> wrote:
> I'm writing a little toy /proc fuse-fs for OpenBSD. > > The field p_schedflags defined in struct kinfo_proc > in file /usr/include/sys/sysctl.h refers to PSCHED_*, > but I can't find any references to these macros with: > $ grep -rn PSCHED_ /usr/include /usr/src/sys > > Nor can I find any references to p_schedflags: > $ grep -rn p_schedflags /usr/src > > This leads me to believe that this field is unused > and should also be marked accordingly, > to avoid future confusion. > > If not, please let me know how I interpret use this field. > Yeah, that field hasn't actually been set since 2007, when the scheduler state was moved into per-CPU struct schedstate_percpu. I guess it should be deleted the next time we bump the kinfo_proc ABI, along with a review of whether there are other dead items. I don't think we're, at least at this time, interested in exposing or making any promises about the inner workings of the scheduler, as those flags did. Philip
