diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/kernel/compat_wrapper.S | 8 | ||||
| -rw-r--r-- | arch/s390/kernel/syscalls.S | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/time.c | 9 |
3 files changed, 14 insertions, 4 deletions
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index ef5b9c4..4d53b27 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1650,3 +1650,11 @@ sys_tee_wrapper: llgfr %r4,%r4 # size_t llgfr %r5,%r5 # unsigned int jg sys_tee + + .globl compat_sys_vmsplice_wrapper +compat_sys_vmsplice_wrapper: + lgfr %r2,%r2 # int + llgtr %r3,%r3 # compat_iovec * + llgfr %r4,%r4 # unsigned int + llgfr %r5,%r5 # unsigned int + jg compat_sys_vmsplice diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index fc2c076..93be1d5 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -317,3 +317,4 @@ SYSCALL(sys_get_robust_list,sys_get_robust_list,compat_sys_get_robust_list_wrapp SYSCALL(sys_splice,sys_splice,sys_splice_wrapper) SYSCALL(sys_sync_file_range,sys_sync_file_range,sys_sync_file_range_wrapper) SYSCALL(sys_tee,sys_tee,sys_tee_wrapper) +SYSCALL(sys_vmsplice,sys_vmsplice,compat_sys_vmsplice_wrapper) diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index fea043b..ce19ad4 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -249,18 +249,19 @@ static inline void stop_hz_timer(void) unsigned long flags; unsigned long seq, next; __u64 timer, todval; + int cpu = smp_processor_id(); if (sysctl_hz_timer != 0) return; - cpu_set(smp_processor_id(), nohz_cpu_mask); + cpu_set(cpu, nohz_cpu_mask); /* * Leave the clock comparator set up for the next timer * tick if either rcu or a softirq is pending. */ - if (rcu_pending(smp_processor_id()) || local_softirq_pending()) { - cpu_clear(smp_processor_id(), nohz_cpu_mask); + if (rcu_needs_cpu(cpu) || local_softirq_pending()) { + cpu_clear(cpu, nohz_cpu_mask); return; } @@ -271,7 +272,7 @@ static inline void stop_hz_timer(void) next = next_timer_interrupt(); do { seq = read_seqbegin_irqsave(&xtime_lock, flags); - timer = (__u64)(next - jiffies) + jiffies_64; + timer = (__u64 next) - (__u64 jiffies) + jiffies_64; } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); todval = -1ULL; /* Be careful about overflows. */ |