926c6ec453
Because resuming from a token requires "guid" -> "snapshot" mapping we have to walk the whole dataset hierarchy to find the right snapshot to send; when both source and destination exists, for an incremental resumable stream, libzfs gets confused and picks up the wrong snapshot to send from: this results in attempting to send "destination@snap1 -> source@snap2" instead of "source@snap1 -> source@snap2" which fails with a "Invalid cross-device link" error (EXDEV). Fix this by adjusting the logic behind dataset traversal in zfs_iter_children() to pick the right snapshot to send from. Additionally update dry-run 'zfs send -t' to print its output to stderr: this is consistent with other dry-run commands. Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: loli10K <ezomori.nozomu@gmail.com> Closes #6618 Closes #6619 Closes #6623 |
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