diff options
Diffstat (limited to 'drivers/scsi/scsi_transport_iscsi.c')
| -rw-r--r-- | drivers/scsi/scsi_transport_iscsi.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index ff123023e5a5..0508831d6fb9 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -37,6 +37,18 @@ #define ISCSI_TRANSPORT_VERSION "2.0-870" +#define CREATE_TRACE_POINTS +#include <trace/events/iscsi.h> + +/* + * Export tracepoint symbols to be used by other modules. + */ +EXPORT_TRACEPOINT_SYMBOL_GPL(iscsi_dbg_conn); +EXPORT_TRACEPOINT_SYMBOL_GPL(iscsi_dbg_eh); +EXPORT_TRACEPOINT_SYMBOL_GPL(iscsi_dbg_session); +EXPORT_TRACEPOINT_SYMBOL_GPL(iscsi_dbg_tcp); +EXPORT_TRACEPOINT_SYMBOL_GPL(iscsi_dbg_sw_tcp); + static int dbg_session; module_param_named(debug_session, dbg_session, int, S_IRUGO | S_IWUSR); @@ -59,6 +71,9 @@ MODULE_PARM_DESC(debug_conn, iscsi_cls_session_printk(KERN_INFO, _session, \ "%s: " dbg_fmt, \ __func__, ##arg); \ + iscsi_dbg_trace(trace_iscsi_dbg_trans_session, \ + &(_session)->dev, \ + "%s " dbg_fmt, __func__, ##arg); \ } while (0); #define ISCSI_DBG_TRANS_CONN(_conn, dbg_fmt, arg...) \ @@ -66,7 +81,10 @@ MODULE_PARM_DESC(debug_conn, if (dbg_conn) \ iscsi_cls_conn_printk(KERN_INFO, _conn, \ "%s: " dbg_fmt, \ - __func__, ##arg); \ + __func__, ##arg); \ + iscsi_dbg_trace(trace_iscsi_dbg_trans_conn, \ + &(_conn)->dev, \ + "%s " dbg_fmt, __func__, ##arg); \ } while (0); struct iscsi_internal { @@ -4494,6 +4512,20 @@ int iscsi_unregister_transport(struct iscsi_transport *tt) } EXPORT_SYMBOL_GPL(iscsi_unregister_transport); +void iscsi_dbg_trace(void (*trace)(struct device *dev, struct va_format *), + struct device *dev, const char *fmt, ...) +{ + struct va_format vaf; + va_list args; + + va_start(args, fmt); + vaf.fmt = fmt; + vaf.va = &args; + trace(dev, &vaf); + va_end(args); +} +EXPORT_SYMBOL_GPL(iscsi_dbg_trace); + static __init int iscsi_transport_init(void) { int err; |