set_page_owner(page, order, gfp_flags);
/*
- * page->pfmemalloc is set when ALLOC_NO_WATERMARKS was necessary to
+ * page is set pfmemalloc when ALLOC_NO_WATERMARKS was necessary to
* allocate the page. The expectation is that the caller is taking
* steps that will free more memory. The caller should avoid the page
* being used for !PFMEMALLOC purposes.
*/
- page->pfmemalloc = !!(alloc_flags & ALLOC_NO_WATERMARKS);
+ if (alloc_flags & ALLOC_NO_WATERMARKS)
+ set_page_pfmemalloc(page);
+ else
+ clear_page_pfmemalloc(page);
return 0;
}
atomic_add(size - 1, &page->_count);
/* reset page count bias and offset to start of new frag */
- nc->pfmemalloc = page->pfmemalloc;
+ nc->pfmemalloc = page_is_pfmemalloc(page);
nc->pagecnt_bias = size;
nc->offset = size;
}
{
unsigned long zone_start_pfn, zone_end_pfn;
+ /* When hotadd a new node, the node should be empty */
+ if (!node_start_pfn && !node_end_pfn)
+ return 0;
+
/* Get the start and end of the zone */
zone_start_pfn = arch_zone_lowest_possible_pfn[zone_type];
zone_end_pfn = arch_zone_highest_possible_pfn[zone_type];
unsigned long zone_high = arch_zone_highest_possible_pfn[zone_type];
unsigned long zone_start_pfn, zone_end_pfn;
+ /* When hotadd a new node, the node should be empty */
+ if (!node_start_pfn && !node_end_pfn)
+ return 0;
+
zone_start_pfn = clamp(node_start_pfn, zone_low, zone_high);
zone_end_pfn = clamp(node_end_pfn, zone_low, zone_high);