libata: Add tracepoints
Add some tracepoints for ata_qc_issue, ata_qc_complete, and
ata_eh_link_autopsy.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 77ef43e..07f41be 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -46,6 +46,7 @@
#include <linux/libata.h>
+#include <trace/events/libata.h>
#include "libata.h"
enum {
@@ -2291,6 +2292,7 @@
all_err_mask |= qc->err_mask;
if (qc->flags & ATA_QCFLAG_IO)
eflags |= ATA_EFLAG_IS_IO;
+ trace_ata_eh_link_autopsy_qc(qc);
}
/* enforce default EH actions */
@@ -2325,7 +2327,7 @@
eflags |= ATA_EFLAG_DUBIOUS_XFER;
ehc->i.action |= ata_eh_speed_down(dev, eflags, all_err_mask);
}
-
+ trace_ata_eh_link_autopsy(dev, ehc->i.action, all_err_mask);
DPRINTK("EXIT\n");
}