Author: mm
Date: Thu Aug 12 05:59:55 2010
New Revision: 211205
URL: http://svn.freebsd.org/changeset/base/211205
Log:
MFC r211091:
Return EIO if vdev->v_phys_read is NULL.
This fixes booting from a ZFS mirror with a unavailable primary device.
PR: kern/148655
Reviewed by: avg
Approved by: delphij (mentor)
Modified:
stable/8/sys/boot/zfs/zfsimpl.c
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cam/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
stable/8/sys/dev/xen/xenpci/ (props changed)
Modified: stable/8/sys/boot/zfs/zfsimpl.c
==============================================================================
--- stable/8/sys/boot/zfs/zfsimpl.c Thu Aug 12 01:08:50 2010
(r211204)
+++ stable/8/sys/boot/zfs/zfsimpl.c Thu Aug 12 05:59:55 2010
(r211205)
@@ -328,6 +328,9 @@ vdev_read_phys(vdev_t *vdev, const blkpt
size_t psize;
int rc;
+ if (!vdev->v_phys_read)
+ return (EIO);
+
if (bp) {
psize = BP_GET_PSIZE(bp);
} else {
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