diff options
Diffstat (limited to 'mm/memblock.c')
| -rw-r--r-- | mm/memblock.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/mm/memblock.c b/mm/memblock.c index 154f1d73b61f..117d963e677c 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -780,9 +780,9 @@ bool __init_memblock memblock_validate_numa_coverage(unsigned long threshold_byt } if ((nr_pages << PAGE_SHIFT) > threshold_bytes) { - mem_size_mb = memblock_phys_mem_size() >> 20; + mem_size_mb = memblock_phys_mem_size() / SZ_1M; pr_err("NUMA: no nodes coverage for %luMB of %luMB RAM\n", - (nr_pages << PAGE_SHIFT) >> 20, mem_size_mb); + (nr_pages << PAGE_SHIFT) / SZ_1M, mem_size_mb); return false; } @@ -1091,13 +1091,20 @@ int __init_memblock memblock_clear_nomap(phys_addr_t base, phys_addr_t size) /** * memblock_reserved_mark_noinit - Mark a reserved memory region with flag - * MEMBLOCK_RSRV_NOINIT which results in the struct pages not being initialized - * for this region. + * MEMBLOCK_RSRV_NOINIT + * * @base: the base phys addr of the region * @size: the size of the region * - * struct pages will not be initialized for reserved memory regions marked with - * %MEMBLOCK_RSRV_NOINIT. + * The struct pages for the reserved regions marked %MEMBLOCK_RSRV_NOINIT will + * not be fully initialized to allow the caller optimize their initialization. + * + * When %CONFIG_DEFERRED_STRUCT_PAGE_INIT is enabled, setting this flag + * completely bypasses the initialization of struct pages for such region. + * + * When %CONFIG_DEFERRED_STRUCT_PAGE_INIT is disabled, struct pages in this + * region will be initialized with default values but won't be marked as + * reserved. * * Return: 0 on success, -errno on failure. */ |