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oprofile: remove ring buffer inline functions in cpu_buffer.h

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This patch moves ring buffer inline functions to cpu_buffer.c.

Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Robert Richter <robert.richter@amd.com>
This commit is contained in:
Robert Richter 2008-12-16 16:19:54 +01:00
parent 6d2c53f3cd
commit 9966718dae
2 changed files with 50 additions and 48 deletions
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48
drivers/oprofile/cpu_buffer.c
View file

@ -45,8 +45,8 @@
* can be changed to a single buffer solution when the ring buffer
* access is implemented as non-locking atomic code.
*/
struct ring_buffer *op_ring_buffer_read;
struct ring_buffer *op_ring_buffer_write;
static struct ring_buffer *op_ring_buffer_read;
static struct ring_buffer *op_ring_buffer_write;
DEFINE_PER_CPU(struct oprofile_cpu_buffer, cpu_buffer);
static void wq_sync_buffer(struct work_struct *work);
@ -145,6 +145,50 @@ void end_cpu_work(void)
flush_scheduled_work();
}
int op_cpu_buffer_write_entry(struct op_entry *entry)
{
entry->event = ring_buffer_lock_reserve(op_ring_buffer_write,
sizeof(struct op_sample),
&entry->irq_flags);
if (entry->event)
entry->sample = ring_buffer_event_data(entry->event);
else
entry->sample = NULL;
if (!entry->sample)
return -ENOMEM;
return 0;
}
int op_cpu_buffer_write_commit(struct op_entry *entry)
{
return ring_buffer_unlock_commit(op_ring_buffer_write, entry->event,
entry->irq_flags);
}
struct op_sample *op_cpu_buffer_read_entry(int cpu)
{
struct ring_buffer_event *e;
e = ring_buffer_consume(op_ring_buffer_read, cpu, NULL);
if (e)
return ring_buffer_event_data(e);
if (ring_buffer_swap_cpu(op_ring_buffer_read,
op_ring_buffer_write,
cpu))
return NULL;
e = ring_buffer_consume(op_ring_buffer_read, cpu, NULL);
if (e)
return ring_buffer_event_data(e);
return NULL;
}
unsigned long op_cpu_buffer_entries(int cpu)
{
return ring_buffer_entries_cpu(op_ring_buffer_read, cpu)
+ ring_buffer_entries_cpu(op_ring_buffer_write, cpu);
}
static inline int
add_sample(struct oprofile_cpu_buffer *cpu_buf,
unsigned long pc, unsigned long event)

50
drivers/oprofile/cpu_buffer.h
View file

@ -54,8 +54,6 @@ struct oprofile_cpu_buffer {
struct delayed_work work;
};
extern struct ring_buffer *op_ring_buffer_read;
extern struct ring_buffer *op_ring_buffer_write;
DECLARE_PER_CPU(struct oprofile_cpu_buffer, cpu_buffer);
/*
@ -72,50 +70,10 @@ static inline void op_cpu_buffer_reset(int cpu)
cpu_buf->last_task = NULL;
}
static inline int op_cpu_buffer_write_entry(struct op_entry *entry)
{
entry->event = ring_buffer_lock_reserve(op_ring_buffer_write,
sizeof(struct op_sample),
&entry->irq_flags);
if (entry->event)
entry->sample = ring_buffer_event_data(entry->event);
else
entry->sample = NULL;
if (!entry->sample)
return -ENOMEM;
return 0;
}
static inline int op_cpu_buffer_write_commit(struct op_entry *entry)
{
return ring_buffer_unlock_commit(op_ring_buffer_write, entry->event,
entry->irq_flags);
}
static inline struct op_sample *op_cpu_buffer_read_entry(int cpu)
{
struct ring_buffer_event *e;
e = ring_buffer_consume(op_ring_buffer_read, cpu, NULL);
if (e)
return ring_buffer_event_data(e);
if (ring_buffer_swap_cpu(op_ring_buffer_read,
op_ring_buffer_write,
cpu))
return NULL;
e = ring_buffer_consume(op_ring_buffer_read, cpu, NULL);
if (e)
return ring_buffer_event_data(e);
return NULL;
}
/* "acquire" as many cpu buffer slots as we can */
static inline unsigned long op_cpu_buffer_entries(int cpu)
{
return ring_buffer_entries_cpu(op_ring_buffer_read, cpu)
+ ring_buffer_entries_cpu(op_ring_buffer_write, cpu);
}
int op_cpu_buffer_write_entry(struct op_entry *entry);
int op_cpu_buffer_write_commit(struct op_entry *entry);
struct op_sample *op_cpu_buffer_read_entry(int cpu);
unsigned long op_cpu_buffer_entries(int cpu);
/* transient events for the CPU buffer -> event buffer */
#define CPU_IS_KERNEL 1