K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2018-10-14T16:14:01.388517Z
K 7
svn:log
V 285
zfs: fix a panic after failed mount

r338927("zfs: depessimize zfs_root with rmlocks") failed to error check
the mount before caching root vnode.

Results in crashes in rrw_enter_read_impl tracing back to zfs_mount.

Reported by:	Mike Tancsa
Tested by:	allanjude
Approved by:	re (kib)

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