Hi Alexander, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.19-rc3] [cannot apply to next-20180910] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Alexander-Duyck/Address-issues-slowing-persistent-memory-initialization/20180911-144536 config: openrisc-or1ksim_defconfig (attached as .config) compiler: or1k-linux-gcc (GCC) 6.0.0 20160327 (experimental) reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=openrisc All errors (new ones prefixed by >>): mm/page_alloc.c: In function 'memmap_init_zone': >> mm/page_alloc.c:5566:21: error: 'ZONE_DEVICE' undeclared (first use in this function) } else if (zone == ZONE_DEVICE) { ^~~~~~~~~~~ mm/page_alloc.c:5566:21: note: each undeclared identifier is reported only once for each function it appears in vim +/ZONE_DEVICE +5566 mm/page_alloc.c 5551 5552 if (highest_memmap_pfn < end_pfn - 1) 5553 highest_memmap_pfn = end_pfn - 1; 5554 5555 /* 5556 * Honor reservation requested by the driver for this ZONE_DEVICE 5557 * memory. We limit the total number of pages to initialize to just 5558 * those that might contain the memory mapping. We will defer the 5559 * ZONE_DEVICE page initialization until after we have released 5560 * the hotplug lock. 5561 */ 5562 if (altmap && start_pfn == altmap->base_pfn) { 5563 start_pfn += altmap->reserve; 5564 end_pfn = altmap->base_pfn + 5565 vmem_altmap_offset(altmap); > 5566 } else if (zone == ZONE_DEVICE) { 5567 end_pfn = start_pfn; 5568 } 5569 5570 for (pfn = start_pfn; pfn < end_pfn; pfn++) { 5571 /* 5572 * There can be holes in boot-time mem_map[]s handed to this 5573 * function. They do not exist on hotplugged memory. 5574 */ 5575 if (context != MEMMAP_EARLY) 5576 goto not_early; 5577 5578 if (!early_pfn_valid(pfn)) 5579 continue; 5580 if (!early_pfn_in_nid(pfn, nid)) 5581 continue; 5582 if (!update_defer_init(pgdat, pfn, end_pfn, &nr_initialised)) 5583 break; 5584 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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