diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memblock.c | 29 |
1 files changed, 11 insertions, 18 deletions
diff --git a/mm/memblock.c b/mm/memblock.c index 22cd999b0d4..447cf64304b 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -499,27 +499,26 @@ phys_addr_t __init memblock_alloc(phys_addr_t size, phys_addr_t align) /* - * Additional node-local allocators. Search for node memory is bottom up - * and walks memblock regions within that node bottom-up as well, but allocation - * within an memblock region is top-down. XXX I plan to fix that at some stage + * Additional node-local top-down allocators. * * WARNING: Only available after early_node_map[] has been populated, * on some architectures, that is after all the calls to add_active_range() * have been done to populate it. */ -static phys_addr_t __init memblock_nid_range(phys_addr_t start, phys_addr_t end, int *nid) +static phys_addr_t __init memblock_nid_range_rev(phys_addr_t start, + phys_addr_t end, int *nid) { #ifdef CONFIG_ARCH_POPULATES_NODE_MAP unsigned long start_pfn, end_pfn; int i; for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, nid) - if (start >= PFN_PHYS(start_pfn) && start < PFN_PHYS(end_pfn)) - return min(end, PFN_PHYS(end_pfn)); + if (end > PFN_PHYS(start_pfn) && end <= PFN_PHYS(end_pfn)) + return max(start, PFN_PHYS(start_pfn)); #endif *nid = 0; - return end; + return start; } static phys_addr_t __init memblock_alloc_nid_region(struct memblock_region *mp, @@ -531,21 +530,19 @@ static phys_addr_t __init memblock_alloc_nid_region(struct memblock_region *mp, start = mp->base; end = start + mp->size; - start = round_up(start, align); while (start < end) { - phys_addr_t this_end; + phys_addr_t this_start; int this_nid; - this_end = memblock_nid_range(start, end, &this_nid); + this_start = memblock_nid_range_rev(start, end, &this_nid); if (this_nid == nid) { - phys_addr_t ret = memblock_find_region(start, this_end, size, align); + phys_addr_t ret = memblock_find_region(this_start, end, size, align); if (ret && !memblock_add_region(&memblock.reserved, ret, size)) return ret; } - start = this_end; + end = this_start; } - return 0; } @@ -561,11 +558,7 @@ phys_addr_t __init memblock_alloc_nid(phys_addr_t size, phys_addr_t align, int n */ size = round_up(size, align); - /* We do a bottom-up search for a region with the right - * nid since that's easier considering how memblock_nid_range() - * works - */ - for (i = 0; i < mem->cnt; i++) { + for (i = mem->cnt - 1; i >= 0; i--) { phys_addr_t ret = memblock_alloc_nid_region(&mem->regions[i], size, align, nid); if (ret) |