diff options
Diffstat (limited to 'arch/s390/mm/init.c')
| -rw-r--r-- | arch/s390/mm/init.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 0b09b234230..89ebae4008f 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -21,6 +21,7 @@ #include <linux/init.h> #include <linux/pagemap.h> #include <linux/bootmem.h> +#include <linux/memory.h> #include <linux/pfn.h> #include <linux/poison.h> #include <linux/initrd.h> @@ -36,6 +37,7 @@ #include <asm/tlbflush.h> #include <asm/sections.h> #include <asm/ctl_reg.h> +#include <asm/sclp.h> pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__((__aligned__(PAGE_SIZE))); @@ -214,6 +216,15 @@ int arch_add_memory(int nid, u64 start, u64 size) return rc; } +unsigned long memory_block_size_bytes(void) +{ + /* + * Make sure the memory block size is always greater + * or equal than the memory increment size. + */ + return max_t(unsigned long, MIN_MEMORY_BLOCK_SIZE, sclp_get_rzm()); +} + #ifdef CONFIG_MEMORY_HOTREMOVE int arch_remove_memory(u64 start, u64 size) { |