Allow sending corrupt snapshots even if metadata is corrupted
When zfs_send_corrupt_data is set, use the TRAVERSE_HARD flag, so traverse_visitbp() will not fail with ECKSUM if a blockpointer cannot be read, but rather will continue and send the objects it can. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Signed-off-by: Allan Jude <allan@klarasystems.com> Sponsored-By: Klara Inc. Sponsored-By: WHC Online Solutions Inc. Closes #12541
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@ -2054,6 +2054,8 @@ setup_to_thread(struct send_thread_arg *to_arg, objset_t *to_os,
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to_arg->flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA;
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if (rawok)
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to_arg->flags |= TRAVERSE_NO_DECRYPT;
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if (zfs_send_corrupt_data)
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to_arg->flags |= TRAVERSE_HARD;
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to_arg->num_blocks_visited = &dssp->dss_blocks;
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(void) thread_create(NULL, 0, send_traverse_thread, to_arg, 0,
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curproc, TS_RUN, minclsyspri);
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