On (07/07/15 22:39), Minchan Kim wrote: [..] > > struct zs_pool_stats { > > - /* How many objects were migrated */ > > - u64 num_migrated; > > + /* How many pages were migrated (freed) */ > > + u64 pages_compacted; > > Hmm, if we account it as page unit, unsigned long is enough for 32bit.
Well, this is a 'how many pages were freed overall' counter. We don't control the lifetime of device, so I think it can be bigger than 4 bytes in some `extreme' cases. -ss -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/