drbd: log request sector offset and size for IO errors
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 97a9e69..b905a04 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -425,6 +425,20 @@
kref_sub(&req->kref, k_put, drbd_req_destroy);
}
+static void drbd_report_io_error(struct drbd_conf *mdev, struct drbd_request *req)
+{
+ char b[BDEVNAME_SIZE];
+
+ if (!__ratelimit(&drbd_ratelimit_state))
+ return;
+
+ dev_warn(DEV, "local %s IO error sector %llu+%u on %s\n",
+ (req->rq_state & RQ_WRITE) ? "WRITE" : "READ",
+ (unsigned long long)req->i.sector,
+ req->i.size >> 9,
+ bdevname(mdev->ldev->backing_bdev, b));
+}
+
/* obviously this could be coded as many single functions
* instead of one huge switch,
* or by putting the code directly in the respective locations
@@ -493,12 +507,14 @@
break;
case WRITE_COMPLETED_WITH_ERROR:
+ drbd_report_io_error(mdev, req);
__drbd_chk_io_error(mdev, DRBD_WRITE_ERROR);
mod_rq_state(req, m, RQ_LOCAL_PENDING, RQ_LOCAL_COMPLETED);
break;
case READ_COMPLETED_WITH_ERROR:
drbd_set_out_of_sync(mdev, req->i.sector, req->i.size);
+ drbd_report_io_error(mdev, req);
__drbd_chk_io_error(mdev, DRBD_READ_ERROR);
/* fall through. */
case READ_AHEAD_COMPLETED_WITH_ERROR:
@@ -1108,7 +1124,8 @@
} else if (no_remote) {
nodata:
if (__ratelimit(&drbd_ratelimit_state))
- dev_err(DEV, "IO ERROR: neither local nor remote disk\n");
+ dev_err(DEV, "IO ERROR: neither local nor remote data, sector %llu+%u\n",
+ (unsigned long long)req->i.sector, req->i.size >> 9);
/* A write may have been queued for send_oos, however.
* So we can not simply free it, we must go through drbd_req_put_completion_ref() */
}