svn commit: r316665 - in head/sys: compat/linuxkpi/common/src contrib/ck/include contrib/ck/src

[Olivier Houchard]

On Sun, Apr 09, 2017 at 03:49:57PM -0700, Conrad Meyer wrote:
> On Sun, Apr 9, 2017 at 2:02 PM, Olivier Houchard <cognet at freebsd.org> wrote:
> > Author: cognet
> > Date: Sun Apr  9 21:02:05 2017
> > New Revision: 316665
> > URL: https://svnweb.freebsd.org/changeset/base/316665
> >
> > Log:
> >   Import CK as of commit 6b141c0bdd21ce8b3e14147af8f87f22b20ecf32
> >   This brings us changes we needed in ck_epoch.
> 
> Out of curiosity ??? what changes did we need, and why?
> 

Hi Conrad,

What ck_epoch lacked was any way to do priority propagation, which led
to some nice deadlocks to the linuxkpi folks.

Regards,

Olivier