On Tue, May 29, 2018 at 10:17:12AM +0200, Christoph Hellwig wrote: > On Mon, May 28, 2018 at 08:53:42AM +0200, Johannes Thumshirn wrote: > > Reviewed-by: Johannes Thumshirn <jthumshirn@xxxxxxx> > > > > As a side note, what happens if more than 1024 Namespaces are changed > > (apart from setting the 1st element to 0xffffffff and zeroing out the > > rest)? > > > > The Spec is pretty silent in this regard. > > The spec is completly clear on this: > > From 5.14.1.4: > > "If more than 1024 namespaces have changed attributes since the last time the > log page was read, the first entry in the log page shall be set to FFFFFFFFh > and the remainder of the list shall be zero-filled." > > Once we don't know what changed we'll have to do a full rescan using > Identify. The "full rescan" part was what I couldn't read out of the spec. Thanks, Johannes -- Johannes Thumshirn Storage jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
