* Dual LGPL v2.1/GPL v2 license.
*/
+#include <urcu/compiler.h>
+#include <urcu/uatomic.h>
+
+#include "smp.h"
/* Internal helpers */
#include "frontend_internal.h"
void *buf_addr,
size_t subbuf_size, size_t num_subbuf,
unsigned int switch_timer_interval,
- unsigned int read_timer_interval);
+ unsigned int read_timer_interval,
+ int *shmid);
/*
* channel_destroy returns the private data pointer. It finalizes all channel's
* only performed at channel destruction.
*/
#define for_each_channel_cpu(cpu, chan) \
- for ((cpu) = -1; \
- ({ (cpu) = cpumask_next(cpu, (chan)->backend.cpumask); \
- smp_read_barrier_depends(); (cpu) < nr_cpu_ids; });)
+ for_each_possible_cpu(cpu)
extern struct lib_ring_buffer *channel_get_ring_buffer(
const struct lib_ring_buffer_config *config,
{
lib_ring_buffer_put_subbuf(buf);
lib_ring_buffer_move_consumer(buf, subbuf_align(buf->cons_snapshot,
- buf->backend.chan));
+ shmp(buf->backend.chan)));
}
extern void channel_reset(struct channel *chan);
unsigned long lib_ring_buffer_get_consumed(const struct lib_ring_buffer_config *config,
struct lib_ring_buffer *buf)
{
- return atomic_long_read(&buf->consumed);
+ return uatomic_read(&buf->consumed);
}
/*
int lib_ring_buffer_is_finalized(const struct lib_ring_buffer_config *config,
struct lib_ring_buffer *buf)
{
- int finalized = ACCESS_ONCE(buf->finalized);
+ int finalized = CMM_ACCESS_ONCE(buf->finalized);
/*
* Read finalized before counters.
*/
- smp_rmb();
+ cmm_smp_rmb();
return finalized;
}
static inline
int lib_ring_buffer_channel_is_disabled(const struct channel *chan)
{
- return atomic_read(&chan->record_disabled);
+ return uatomic_read(&chan->record_disabled);
}
static inline