From: Rui Teng Date: Thu, 12 Jan 2017 09:09:06 +0000 (+0800) Subject: powerpc/mm: Fix check of multiple 16G pages from device tree X-Git-Tag: v4.14-rc1~119^2~307 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=23493c121912a39f0262e0dbeb236e1d39efa4d5;p=linux-block.git powerpc/mm: Fix check of multiple 16G pages from device tree The offset of hugepage block will not be 16G, if the expected page is more than one. Calculate the totol size instead of the hardcode value. Fixes: 4792adbac9eb ("powerpc: Don't use a 16G page if beyond mem= limits") Signed-off-by: Rui Teng Tested-by: Anshuman Khandual Signed-off-by: Michael Ellerman --- diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 7a20669c19e7..7419fc1854ad 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -507,7 +507,7 @@ static int __init htab_dt_scan_hugepage_blocks(unsigned long node, printk(KERN_INFO "Huge page(16GB) memory: " "addr = 0x%lX size = 0x%lX pages = %d\n", phys_addr, block_size, expected_pages); - if (phys_addr + (16 * GB) <= memblock_end_of_DRAM()) { + if (phys_addr + block_size * expected_pages <= memblock_end_of_DRAM()) { memblock_reserve(phys_addr, block_size * expected_pages); add_gpage(phys_addr, block_size, expected_pages); }