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percpu: remove per_cpu__ prefix.

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Now that the return from alloc_percpu is compatible with the address
of per-cpu vars, it makes sense to hand around the address of per-cpu
variables.  To make this sane, we remove the per_cpu__ prefix we used
created to stop people accidentally using these vars directly.

Now we have sparse, we can use that (next patch).

tj: * Updated to convert stuff which were missed by or added after the
      original patch.

    * Kill per_cpu_var() macro.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
This commit is contained in:
Rusty Russell
2009-10-29 22:34:15 +09:00
committed by Tejun Heo
parent 390dfd95c5
commit dd17c8f729
24 changed files with 80 additions and 90 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
kernel/rcutorture.c
View File

@@ -731,13 +731,13 @@ static void rcu_torture_timer(unsigned long unused)
/* Should not happen, but... */
pipe_count = RCU_TORTURE_PIPE_LEN;
}
__this_cpu_inc(per_cpu_var(rcu_torture_count)[pipe_count]);
__this_cpu_inc(rcu_torture_count[pipe_count]);
completed = cur_ops->completed() - completed;
if (completed > RCU_TORTURE_PIPE_LEN) {
/* Should not happen, but... */
completed = RCU_TORTURE_PIPE_LEN;
}
__this_cpu_inc(per_cpu_var(rcu_torture_batch)[completed]);
__this_cpu_inc(rcu_torture_batch[completed]);
preempt_enable();
cur_ops->readunlock(idx);
}
@@ -786,13 +786,13 @@ rcu_torture_reader(void *arg)
/* Should not happen, but... */
pipe_count = RCU_TORTURE_PIPE_LEN;
}
__this_cpu_inc(per_cpu_var(rcu_torture_count)[pipe_count]);
__this_cpu_inc(rcu_torture_count[pipe_count]);
completed = cur_ops->completed() - completed;
if (completed > RCU_TORTURE_PIPE_LEN) {
/* Should not happen, but... */
completed = RCU_TORTURE_PIPE_LEN;
}
__this_cpu_inc(per_cpu_var(rcu_torture_batch)[completed]);
__this_cpu_inc(rcu_torture_batch[completed]);
preempt_enable();
cur_ops->readunlock(idx);
schedule();

6
kernel/trace/trace.c
View File

@@ -91,12 +91,12 @@ DEFINE_PER_CPU(int, ftrace_cpu_disabled);
static inline void ftrace_disable_cpu(void)
{
preempt_disable();
__this_cpu_inc(per_cpu_var(ftrace_cpu_disabled));
__this_cpu_inc(ftrace_cpu_disabled);
}
static inline void ftrace_enable_cpu(void)
{
__this_cpu_dec(per_cpu_var(ftrace_cpu_disabled));
__this_cpu_dec(ftrace_cpu_disabled);
preempt_enable();
}
@@ -1085,7 +1085,7 @@ trace_function(struct trace_array *tr,
struct ftrace_entry *entry;
/* If we are reading the ring buffer, don't trace */
if (unlikely(__this_cpu_read(per_cpu_var(ftrace_cpu_disabled))))
if (unlikely(__this_cpu_read(ftrace_cpu_disabled)))
return;
event = trace_buffer_lock_reserve(buffer, TRACE_FN, sizeof(*entry),

4
kernel/trace/trace_functions_graph.c
View File

@@ -176,7 +176,7 @@ static int __trace_graph_entry(struct trace_array *tr,
struct ring_buffer *buffer = tr->buffer;
struct ftrace_graph_ent_entry *entry;
if (unlikely(__this_cpu_read(per_cpu_var(ftrace_cpu_disabled))))
if (unlikely(__this_cpu_read(ftrace_cpu_disabled)))
return 0;
event = trace_buffer_lock_reserve(buffer, TRACE_GRAPH_ENT,
@@ -240,7 +240,7 @@ static void __trace_graph_return(struct trace_array *tr,
struct ring_buffer *buffer = tr->buffer;
struct ftrace_graph_ret_entry *entry;
if (unlikely(__this_cpu_read(per_cpu_var(ftrace_cpu_disabled))))
if (unlikely(__this_cpu_read(ftrace_cpu_disabled)))
return;
event = trace_buffer_lock_reserve(buffer, TRACE_GRAPH_RET,