diff options
Diffstat (limited to 'arch/s390/mm/init.c')
| -rw-r--r-- | arch/s390/mm/init.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 49ce6bb2c641..9f9c315b4c07 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -63,10 +63,18 @@ static unsigned long __init setup_zero_pages(void) break; case 0x2097: /* z10 */ case 0x2098: /* z10 */ - default: + case 0x2817: /* z196 */ + case 0x2818: /* z196 */ order = 2; break; + case 0x2827: /* zEC12 */ + default: + order = 5; + break; } + /* Limit number of empty zero pages for small memory sizes */ + if (order > 2 && totalram_pages <= 16384) + order = 2; empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order); if (!empty_zero_page) |