On Fri, Feb 03, 2017 at 09:54:49AM +0100, Hannes Reinecke wrote: > The 'reserved' page array is used as a short-cut for mapping > data, saving us to allocate pages per request. > However, the 'reserved' array is only capable of holding one > request, so we need to protect it against concurrent accesses.
Can you please explain how you protect the access here a bit more, as mentioned before the set_bit for exclusion trick is always suspicious, so the changelog needs to have a justification for it.
