On Wed, Nov 30, 2011 at 1:19 AM, Trond Myklebust <Trond.Myklebust@xxxxxxxxxx> wrote: > On Tue, 2011-11-29 at 11:42 -0500, J. Bruce Fields wrote: >> On Tue, Nov 29, 2011 at 11:40:30AM -0500, Trond Myklebust wrote: >> > I mean that I'm perfectly entitled to do >> > >> > 'modprobe -r blocklayoutdriver' >> > >> > and when I do that, then I expect blkmapd to close the rpc pipe and wait >> > for a new one to be created just like rpc.idmapd and rpc.gssd do when I >> > remove the nfs and sunrpc modules. >> >> The rpc pipefs mount doesn't hold a reference on the sunrpc module? > > I stand corrected: the mount does hold a reference to the sunrpc > module. > However nothing holds a reference to the blocklayoutdriver module, so > the main point that the "blocklayout" pipe can disappear from underneath > the blkmapd stands. Thanks for the explanation and I agree it can cause problem if user reload blocklayout module. I will look into a fix to blkmapd. Best, Tao -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
