struct channel *chan; /* Associated channel */
int cpu; /* This buffer's cpu. -1 if global. */
union v_atomic records_read; /* Number of records read */
- unsigned int allocated:1; /* Bool: is buffer allocated ? */
+ unsigned int allocated:1; /* is buffer allocated ? */
};
struct channel_backend {
* for writer.
*/
unsigned int buf_size_order; /* Order of buffer size */
- int extra_reader_sb:1; /* Bool: has extra reader subbuffer */
+ unsigned int extra_reader_sb:1; /* has extra reader subbuffer ? */
struct lib_ring_buffer *buf; /* Channel per-cpu buffers */
unsigned long num_subbuf; /* Number of sub-buffers for writer */
u64 start_tsc; /* Channel creation TSC value */
void *priv; /* Client-specific information */
struct notifier_block cpu_hp_notifier; /* CPU hotplug notifier */
- const struct lib_ring_buffer_config *config; /* Ring buffer configuration */
+ /*
+ * We need to copy config because the module containing the
+ * source config can vanish before the last reference to this
+ * channel's streams is released.
+ */
+ struct lib_ring_buffer_config config; /* Ring buffer configuration */
cpumask_var_t cpumask; /* Allocated per-cpu buffers cpumask */
char name[NAME_MAX]; /* Channel name */
};