zfs: merge openzfs/zfs@fb6d53206 (zfs-2.1-release) into stable/13
Notable upstream pull request merges:
#13976 3ad882658 Avoid calling rw_destroy() on uninitialized rwlock
#15243 11574a793 Add zfs_prepare_disk script for disk firmware install
#15331 e1bc32f71 Report ashift of L2ARC devices in zdb
#15675 12a031a3f spa: make read/write queues configurable
#15719 b4481996b spa: Fix FreeBSD sysctl handlers
#15719 8e5298f0a spa: Let spa_taskq_param_get()'s addition of a newline
be optional
#15769 dfece78a4 Add 'zpool status -e' flag to see unhealthy vdevs
#15847 d1ee3d611 LUA: Backport CVE-2020-24370's patch
Obtained from: OpenZFS
OpenZFS commit: fb6d532066f23458f768a97ae94b158c42cbe484
OpenZFS tag: zfs-2.1.15