Re: [PATCH 1/2] storage-daemon: add opt to print when initialized

[Raphael Norwitz <raphael.norwitz@nutanix.com>]

On Fri, Aug 27, 2021 at 01:51:48PM -0500, eblake@redhat.com wrote:
> On Fri, Aug 27, 2021 at 04:50:35PM +0000, Raphael Norwitz wrote:
> > This change adds a command line option to print a line to standard out
> > when the storage daemon has completed initialization and is ready to
> > serve client connections.
> > 
> > This option will be used to resolve a hang in the vhost-user-blk-test.
>  
> Doesn't the existing --pidfile already serve the same job?  That is,
> why not fix vhost-user-blk-test to take advantage of the pid-file
> creation rather than output to stdout as evidence of when the storage
> daemon is up and running?
> 
> Therefore, I don't think we need this patch.
>

Sure - that make sense. I didn't use the pid-file because I didn't want to
risk leaving junk on the filesystem if the storage-daemon crashed.

I'll send a V2 using pid-file without this change.

> > 
> > Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
> > ---
> >  storage-daemon/qemu-storage-daemon.c | 21 +++++++++++++++++++++
> >  1 file changed, 21 insertions(+)
> 
> Missing a corresponding change to the man page
> (docs/tools/qemu-storage-daemon.rst), if we decide to go with this
> after all.
> 

Ack

> -- 
> Eric Blake, Principal Software Engineer
> Red Hat, Inc.           +1-919-301-3266
> Virtualization:  qemu.org | libvirt.org
>