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/freebsd-11-stable/cddl/contrib/opensolaris/cmd/zfs/
H A Dzfs_iter.cdiff 347605 Wed May 15 01:44:29 MDT 2019 mav MFC r347240: Fix dataset name comparison in zfs_compare().

The code never returned match comparing two datasets (not snapshots).
As result, uu_avl_find(), called from zfs_callback(), never succeeded,
allowing to add same dataset into the list multiple times, for example:

# zfs get name pers pers pers@z pers@z
NAME PROPERTY VALUE SOURCE
pers name pers -
pers name pers -
pers@z name pers@z -

With the patch:

# zfs get name pers pers pers@z pers@z
NAME PROPERTY VALUE SOURCE
pers name pers -
pers@z name pers@z -

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