Author: cem
Date: Tue Apr 18 21:05:05 2017
New Revision: 317104
URL: https://svnweb.freebsd.org/changeset/base/317104
Log:
da(4): Fix a TRIM regression introduced in r308155
According to Warner, multiple TRIM BIOs are collapsed into a single CCB with
NULL bp. It is invalid to biotrack() NULL, and results in a fault. So,
don't do that.
Reported by: asomers@
Sponsored by: Dell EMC Isilon
Modified:
head/sys/cam/scsi/scsi_da.c
Modified: head/sys/cam/scsi/scsi_da.c
==============================================================================
--- head/sys/cam/scsi/scsi_da.c Tue Apr 18 20:31:02 2017 (r317103)
+++ head/sys/cam/scsi/scsi_da.c Tue Apr 18 21:05:05 2017 (r317104)
@@ -4169,7 +4169,8 @@ dadone(struct cam_periph *periph, union
}
}
- biotrack(bp, __func__);
+ if (bp != NULL)
+ biotrack(bp, __func__);
LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
if (LIST_EMPTY(&softc->pending_ccbs))
softc->flags |= DA_FLAG_WAS_OTAG;
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