On Tue, 2007-05-22 at 08:48 +0100, Keir Fraser wrote: > > > On 22/5/07 08:28, "Kieran Mansley" <[EMAIL PROTECTED]> wrote: > > > On Tue, 2007-05-22 at 08:15 +0100, Kieran Mansley wrote: > >> RCU on its own wouldn't > >> prevent the accelerated plugin being unloaded while netfront was using > >> one of the hooks. > > > > Hmm, actually I think it could be used to do that. I'll take a look. > > Eagerly zap the function pointers, then wait one RCU period so every CPU > goes through a quiescent point before unloading the module? > > -- Keir
Am I right in thinking that if one of the functions that was protected by RCU was to block, that would be a bad thing? Clearly the data path hooks can't/don't block, but I'm not sure it's so obvious for things like probing a new device. Kieran - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
