diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/Kconfig | 6 | ||||
| -rw-r--r-- | arch/s390/include/asm/cputime.h | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/process.c | 6 | ||||
| -rw-r--r-- | arch/s390/kernel/setup.c | 4 | ||||
| -rw-r--r-- | arch/s390/oprofile/init.c | 2 |
5 files changed, 13 insertions, 7 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 373679b..d48ede3 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -92,6 +92,9 @@ config S390 select HAVE_ARCH_JUMP_LABEL if !MARCH_G5 select HAVE_RCU_TABLE_FREE if SMP select ARCH_SAVE_PAGE_KEYS if HIBERNATION + select HAVE_MEMBLOCK + select HAVE_MEMBLOCK_NODE_MAP + select ARCH_DISCARD_MEMBLOCK select ARCH_INLINE_SPIN_TRYLOCK select ARCH_INLINE_SPIN_TRYLOCK_BH select ARCH_INLINE_SPIN_LOCK @@ -345,9 +348,6 @@ config WARN_DYNAMIC_STACK Say N if you are unsure. -config ARCH_POPULATES_NODE_MAP - def_bool y - comment "Kernel preemption" source "kernel/Kconfig.preempt" diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h index 0814348..b9acaaa 100644 --- a/arch/s390/include/asm/cputime.h +++ b/arch/s390/include/asm/cputime.h @@ -87,6 +87,8 @@ usecs_to_cputime(const unsigned int m) return (cputime_t) m * 4096; } +#define usecs_to_cputime64(m) usecs_to_cputime(m) + /* * Convert cputime to milliseconds and back. */ diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 9451b21..3201ae4 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -91,10 +91,12 @@ static void default_idle(void) void cpu_idle(void) { for (;;) { - tick_nohz_stop_sched_tick(1); + tick_nohz_idle_enter(); + rcu_idle_enter(); while (!need_resched()) default_idle(); - tick_nohz_restart_sched_tick(); + rcu_idle_exit(); + tick_nohz_idle_exit(); preempt_enable_no_resched(); schedule(); preempt_disable(); diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index e54c4ff..f11d1b0 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -21,6 +21,7 @@ #include <linux/module.h> #include <linux/sched.h> #include <linux/kernel.h> +#include <linux/memblock.h> #include <linux/mm.h> #include <linux/stddef.h> #include <linux/unistd.h> @@ -820,7 +821,8 @@ setup_memory(void) end_chunk = min(end_chunk, end_pfn); if (start_chunk >= end_chunk) continue; - add_active_range(0, start_chunk, end_chunk); + memblock_add_node(PFN_PHYS(start_chunk), + PFN_PHYS(end_chunk - start_chunk), 0); pfn = max(start_chunk, start_pfn); for (; pfn < end_chunk; pfn++) page_set_storage_key(PFN_PHYS(pfn), diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c index 6cf2286..2297be4 100644 --- a/arch/s390/oprofile/init.c +++ b/arch/s390/oprofile/init.c @@ -123,7 +123,7 @@ static ssize_t hwsampler_write(struct file *file, char const __user *buf, return -EINVAL; retval = oprofilefs_ulong_from_user(&val, buf, count); - if (retval) + if (retval <= 0) return retval; if (val != 0 && val != 1) |