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Fix data corruption when cloning embedded blocks 

Don't overwrite blk_phys_birth, as for embedded blocks it is part of
the payload.

Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Pawel Jakub Dawidek <pawel@dawidek.net>
Issue #13392 
Closes #14739
This commit is contained in:
Pawel Jakub Dawidek 2023-04-13 08:15:05 +09:00 committed by GitHub
parent 6e015933f8
commit c71fe71640
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1 changed files with 4 additions and 2 deletions
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6
module/zfs/dmu.c
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@ -2312,8 +2312,10 @@ dmu_brt_clone(objset_t *os, uint64_t object, uint64_t offset, uint64_t length,
dl->dr_overridden_by.blk_phys_birth = 0;
} else {
dl->dr_overridden_by.blk_birth = dr->dr_txg;
dl->dr_overridden_by.blk_phys_birth =
BP_PHYSICAL_BIRTH(bp);
if (!BP_IS_EMBEDDED(bp)) {
dl->dr_overridden_by.blk_phys_birth =
BP_PHYSICAL_BIRTH(bp);
}
}
mutex_exit(&db->db_mtx);