[Patch depends on another patch in this series that introduces raw_cpu_ops] Convert all uses of __get_cpu_var for address calculation to use this_cpu_ptr instead. Cc: Peter Zijlstra Acked-by: Ingo Molnar Signed-off-by: Christoph Lameter Index: linux/include/linux/kernel_stat.h =================================================================== --- linux.orig/include/linux/kernel_stat.h 2014-01-30 14:41:01.816304114 -0600 +++ linux/include/linux/kernel_stat.h 2014-01-30 14:41:01.816304114 -0600 @@ -44,8 +44,8 @@ DECLARE_PER_CPU(struct kernel_cpustat, kernel_cpustat); /* Must have preemption disabled for this to be meaningful. */ -#define kstat_this_cpu (&__get_cpu_var(kstat)) -#define kcpustat_this_cpu (&__get_cpu_var(kernel_cpustat)) +#define kstat_this_cpu this_cpu_ptr(&kstat) +#define kcpustat_this_cpu this_cpu_ptr(&kernel_cpustat) #define kstat_cpu(cpu) per_cpu(kstat, cpu) #define kcpustat_cpu(cpu) per_cpu(kernel_cpustat, cpu) Index: linux/kernel/events/callchain.c =================================================================== --- linux.orig/kernel/events/callchain.c 2014-01-30 14:41:01.816304114 -0600 +++ linux/kernel/events/callchain.c 2014-01-30 14:41:01.816304114 -0600 @@ -137,7 +137,7 @@ int cpu; struct callchain_cpus_entries *entries; - *rctx = get_recursion_context(__get_cpu_var(callchain_recursion)); + *rctx = get_recursion_context(this_cpu_ptr(callchain_recursion)); if (*rctx == -1) return NULL; @@ -153,7 +153,7 @@ static void put_callchain_entry(int rctx) { - put_recursion_context(__get_cpu_var(callchain_recursion), rctx); + put_recursion_context(this_cpu_ptr(callchain_recursion), rctx); } struct perf_callchain_entry * Index: linux/kernel/events/core.c =================================================================== --- linux.orig/kernel/events/core.c 2014-01-30 14:41:01.816304114 -0600 +++ linux/kernel/events/core.c 2014-01-30 14:41:01.816304114 -0600 @@ -241,10 +241,10 @@ return; /* decay the counter by 1 average sample */ - local_samples_len = __get_cpu_var(running_sample_length); + local_samples_len = __this_cpu_read(running_sample_length); local_samples_len -= local_samples_len/NR_ACCUMULATED_SAMPLES; local_samples_len += sample_len_ns; - __get_cpu_var(running_sample_length) = local_samples_len; + __this_cpu_write(running_sample_length, local_samples_len); /* * note: this will be biased artifically low until we have @@ -870,7 +870,7 @@ static void perf_pmu_rotate_start(struct pmu *pmu) { struct perf_cpu_context *cpuctx = this_cpu_ptr(pmu->pmu_cpu_context); - struct list_head *head = &__get_cpu_var(rotation_list); + struct list_head *head = this_cpu_ptr(&rotation_list); WARN_ON(!irqs_disabled()); @@ -2366,7 +2366,7 @@ * to check if we have to switch out PMU state. * cgroup event are system-wide mode only */ - if (atomic_read(&__get_cpu_var(perf_cgroup_events))) + if (atomic_read(this_cpu_ptr(&perf_cgroup_events))) perf_cgroup_sched_out(task, next); } @@ -2611,11 +2611,11 @@ * to check if we have to switch in PMU state. * cgroup event are system-wide mode only */ - if (atomic_read(&__get_cpu_var(perf_cgroup_events))) + if (atomic_read(this_cpu_ptr(&perf_cgroup_events))) perf_cgroup_sched_in(prev, task); /* check for system-wide branch_stack events */ - if (atomic_read(&__get_cpu_var(perf_branch_stack_events))) + if (atomic_read(this_cpu_ptr(&perf_branch_stack_events))) perf_branch_stack_sched_in(prev, task); } @@ -2870,7 +2870,7 @@ void perf_event_task_tick(void) { - struct list_head *head = &__get_cpu_var(rotation_list); + struct list_head *head = this_cpu_ptr(&rotation_list); struct perf_cpu_context *cpuctx, *tmp; struct perf_event_context *ctx; int throttled; @@ -5584,7 +5584,7 @@ struct perf_sample_data *data, struct pt_regs *regs) { - struct swevent_htable *swhash = &__get_cpu_var(swevent_htable); + struct swevent_htable *swhash = this_cpu_ptr(&swevent_htable); struct perf_event *event; struct hlist_head *head; @@ -5603,7 +5603,7 @@ int perf_swevent_get_recursion_context(void) { - struct swevent_htable *swhash = &__get_cpu_var(swevent_htable); + struct swevent_htable *swhash = this_cpu_ptr(&swevent_htable); return get_recursion_context(swhash->recursion); } @@ -5611,7 +5611,7 @@ inline void perf_swevent_put_recursion_context(int rctx) { - struct swevent_htable *swhash = &__get_cpu_var(swevent_htable); + struct swevent_htable *swhash = this_cpu_ptr(&swevent_htable); put_recursion_context(swhash->recursion, rctx); } @@ -5640,7 +5640,7 @@ static int perf_swevent_add(struct perf_event *event, int flags) { - struct swevent_htable *swhash = &__get_cpu_var(swevent_htable); + struct swevent_htable *swhash = this_cpu_ptr(&swevent_htable); struct hw_perf_event *hwc = &event->hw; struct hlist_head *head; Index: linux/kernel/sched/fair.c =================================================================== --- linux.orig/kernel/sched/fair.c 2014-01-30 14:41:01.816304114 -0600 +++ linux/kernel/sched/fair.c 2014-01-30 14:41:01.816304114 -0600 @@ -6123,7 +6123,7 @@ struct sched_group *group; struct rq *busiest; unsigned long flags; - struct cpumask *cpus = __get_cpu_var(load_balance_mask); + struct cpumask *cpus = this_cpu_ptr(load_balance_mask); struct lb_env env = { .sd = sd, Index: linux/kernel/sched/rt.c =================================================================== --- linux.orig/kernel/sched/rt.c 2014-01-30 14:41:01.816304114 -0600 +++ linux/kernel/sched/rt.c 2014-01-30 14:41:01.816304114 -0600 @@ -1401,7 +1401,7 @@ static int find_lowest_rq(struct task_struct *task) { struct sched_domain *sd; - struct cpumask *lowest_mask = __get_cpu_var(local_cpu_mask); + struct cpumask *lowest_mask = this_cpu_ptr(local_cpu_mask); int this_cpu = smp_processor_id(); int cpu = task_cpu(task); Index: linux/kernel/sched/sched.h =================================================================== --- linux.orig/kernel/sched/sched.h 2014-01-30 14:41:01.816304114 -0600 +++ linux/kernel/sched/sched.h 2014-01-30 14:41:01.816304114 -0600 @@ -668,10 +668,10 @@ DECLARE_PER_CPU(struct rq, runqueues); #define cpu_rq(cpu) (&per_cpu(runqueues, (cpu))) -#define this_rq() (&__get_cpu_var(runqueues)) +#define this_rq() this_cpu_ptr(&runqueues) #define task_rq(p) cpu_rq(task_cpu(p)) #define cpu_curr(cpu) (cpu_rq(cpu)->curr) -#define raw_rq() (&__raw_get_cpu_var(runqueues)) +#define raw_rq() raw_cpu_ptr(&runqueues) static inline u64 rq_clock(struct rq *rq) { Index: linux/kernel/user-return-notifier.c =================================================================== --- linux.orig/kernel/user-return-notifier.c 2014-01-30 14:41:01.816304114 -0600 +++ linux/kernel/user-return-notifier.c 2014-01-30 14:41:01.816304114 -0600 @@ -14,7 +14,7 @@ void user_return_notifier_register(struct user_return_notifier *urn) { set_tsk_thread_flag(current, TIF_USER_RETURN_NOTIFY); - hlist_add_head(&urn->link, &__get_cpu_var(return_notifier_list)); + hlist_add_head(&urn->link, this_cpu_ptr(&return_notifier_list)); } EXPORT_SYMBOL_GPL(user_return_notifier_register); @@ -25,7 +25,7 @@ void user_return_notifier_unregister(struct user_return_notifier *urn) { hlist_del(&urn->link); - if (hlist_empty(&__get_cpu_var(return_notifier_list))) + if (hlist_empty(this_cpu_ptr(&return_notifier_list))) clear_tsk_thread_flag(current, TIF_USER_RETURN_NOTIFY); } EXPORT_SYMBOL_GPL(user_return_notifier_unregister); Index: linux/kernel/taskstats.c =================================================================== --- linux.orig/kernel/taskstats.c 2014-01-30 14:41:01.816304114 -0600 +++ linux/kernel/taskstats.c 2014-01-30 14:41:01.816304114 -0600 @@ -638,7 +638,7 @@ fill_tgid_exit(tsk); } - listeners = __this_cpu_ptr(&listener_array); + listeners = raw_cpu_ptr(&listener_array); if (list_empty(&listeners->list)) return;