From cea0752f8d14792b8a8d4484649c8a7022678b66 Mon Sep 17 00:00:00 2001 From: Allan Jude Date: Thu, 9 Sep 2021 10:17:31 -0400 Subject: [PATCH] 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 Reviewed-by: John Kennedy Signed-off-by: Allan Jude Sponsored-By: Klara Inc. Sponsored-By: WHC Online Solutions Inc. Closes #12541 --- module/zfs/dmu_send.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/module/zfs/dmu_send.c b/module/zfs/dmu_send.c index d654382237..0658e13c2d 100644 --- a/module/zfs/dmu_send.c +++ b/module/zfs/dmu_send.c @@ -2054,6 +2054,8 @@ setup_to_thread(struct send_thread_arg *to_arg, objset_t *to_os, to_arg->flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA; if (rawok) to_arg->flags |= TRAVERSE_NO_DECRYPT; + if (zfs_send_corrupt_data) + to_arg->flags |= TRAVERSE_HARD; to_arg->num_blocks_visited = &dssp->dss_blocks; (void) thread_create(NULL, 0, send_traverse_thread, to_arg, 0, curproc, TS_RUN, minclsyspri);