[libvirt] [PATCH v2] nodedev: Document the udevEventHandleThread

[Andrea Bolognani]

On Fri, 2018-11-02 at 07:46 -0400, John Ferlan wrote:
> > > + * NB: Usage of event based socket algorithm causes some issues with
> > > + * older platforms such as CentOS 6 in which the data socket is opened
> > 
> > ^Sounds a bit too generic, as an event based algorithm is not forced to open a
> > socket without O_NONBLOCK - just put something like "older platforms' libudev
> > opens sockets without the NONBLOCK flag which might cause issues with event
> > based algorithm" or something alike in there.
> 
>  * NB: Some older distros, such as CentOS 6, libudev opens sockets
>  * without the NONBLOCK flag which might cause issues with event
>  * based algorithm. Although the issue can be mitigated by resetting
>  * priv->dataReady for each event found; however, the scheduler issues
>  * would still come into play.

I haven't looked into this at all so I might be missing something
entirely obvious, but I'd just like to point out that we no longer
target RHEL 6 / CentOS 6, so any issue that's specific to those
platforms we no longer have to concern ourselves with.

-- 
Andrea Bolognani / Red Hat / Virtualization