Re: bio re-ordering

2022-02-18 Thread Peter Jeremy
On 2022-Feb-17 17:48:14 -0800, John-Mark Gurney wrote: >Peter Jeremy wrote this message on Sat, Feb 05, 2022 at 20:50 +1100: >> I've raised https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261731 to >> make geom_gate support BIO_ORDERED. Exposing the BIO_ORDERED flag to >> userland is quite easy

Re: bio re-ordering

2022-02-18 Thread Warner Losh
So I spent some time looking at what BIO_ORDERED means in today's kernel and flavored it with my indoctrination of the ordering guarantees with BIO requests from when I wrote the CAM I/O scheduler. it's kinda long, but spells out what BIO_ORDERED means, where it can come from and who depends on it

Re: bio re-ordering

2022-02-18 Thread Poul-Henning Kamp
Warner Losh writes: > The root of this problem, I think, is the following: > % man 9 bio > No manual entry for bio > I think I'll have to massage this email into an appropriate man page. Please do, and charge the necessary beer to my account :-) -- Poul-Henning Kamp | U

Re: bio re-ordering

2022-02-18 Thread Warner Losh
On Fri, Feb 18, 2022 at 1:57 PM Poul-Henning Kamp wrote: > > Warner Losh writes: > > > The root of this problem, I think, is the following: > > % man 9 bio > > No manual entry for bio > > I think I'll have to massage this email into an appropriate man page. > > Please do, and c