fbynite 11f2e9a491
vdev_ops: don't try to call vdev_op_hold or vdev_op_rele when NULL
This prevents a panic after a SLOG add/removal on the root pool followed
by a zpool scrub.

When a SLOG is removed, a hole takes its place - the vdev_ops for a hole
is vdev_hole_ops, which defines the handler functions of vdev_op_hold
and vdev_op_rele as NULL.

This bug has been reported in illumos and FreeBSD, a different trigger
in the FreeBSD report though.

Credit for this patch goes to Patrick Mooney <pmooney@pfmooney.com>

Obtained from: illumos-gate commit: c65bd18728f34725
External-issue: https://www.illumos.org/issues/12981
External-issue: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252396
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Wing <rob.fx907@gmail.com>
Closes #11623
2021-02-20 20:19:20 -08:00
..
2020-12-10 14:09:23 -08:00
2020-08-20 10:30:06 -07:00
2019-07-26 10:54:14 -07:00
2020-07-29 16:35:33 -07:00
2020-07-29 16:35:33 -07:00
2019-06-19 09:48:12 -07:00
2020-08-17 15:25:37 -07:00
2020-06-18 12:21:18 -07:00
2019-12-03 09:51:44 -08:00
2020-11-02 11:51:12 -08:00
2020-11-10 10:37:10 -08:00
2021-02-19 22:33:15 -08:00
2020-09-04 10:29:39 -07:00
2020-06-18 12:21:25 -07:00
2020-09-04 10:34:28 -07:00
2020-06-18 12:21:25 -07:00
2017-10-11 16:54:48 -04:00
2020-06-18 12:21:25 -07:00
2020-11-13 13:51:51 -08:00
2021-01-26 19:35:59 -08:00
2020-11-13 13:51:51 -08:00
2020-12-10 14:09:23 -08:00
2019-06-19 09:48:12 -07:00
2020-07-29 16:35:33 -07:00
2020-07-29 16:35:33 -07:00
2021-01-20 21:27:30 -08:00
2020-06-18 12:21:25 -07:00
2020-06-18 12:21:25 -07:00
2020-06-18 12:21:25 -07:00
2021-02-20 20:16:50 -08:00
2019-09-02 17:56:41 -07:00
2021-01-21 15:12:54 -08:00
2019-10-09 10:36:03 -07:00
2021-01-26 19:36:51 -08:00
2020-11-13 13:51:51 -08:00
2020-11-13 13:51:51 -08:00
2020-07-29 16:35:33 -07:00
2020-06-18 12:21:25 -07:00
2019-09-02 17:56:41 -07:00
2020-10-02 17:44:10 -07:00
2020-06-18 12:20:38 -07:00
2021-02-19 22:33:15 -08:00
2021-02-20 20:16:50 -08:00
2020-10-02 17:44:10 -07:00
2021-01-20 21:27:30 -08:00
2021-02-20 20:16:50 -08:00
2020-06-18 12:20:38 -07:00
2020-11-13 13:51:51 -08:00
2021-02-19 22:33:15 -08:00
2020-06-18 12:21:25 -07:00
2020-06-18 12:21:18 -07:00
2020-09-03 20:09:52 -07:00
2020-11-17 09:50:52 -08:00