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Alexander Motin
5cc1876f14
- We cannot clone into files with smaller block size if there is more than one block, since we can not grow the block size. - Block size must be power-of-2 if destination offset != 0, since there can be no multiple blocks of non-power-of-2 size. The first should handle the case when destination file has several blocks but still is not bigger than one block of the source file. The second fixes panic in dmu_buf_hold_array_by_dnode() on attempt to concatenate files with equal but non-power-of-2 block sizes. While there, assert that error is reported if we made no progress. Reviewed-by: Pawel Jakub Dawidek <pawel@dawidek.net> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Rob Norris <rob.norris@klarasystems.com> Reviewed-by: Kay Pedersen <mail@mkwg.de> Reviewed-by: Umer Saleem <usaleem@ixsystems.com> Signed-off-by: Alexander Motin <mav@FreeBSD.org> Sponsored by: iXsystems, Inc. Closes #15251