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c634320e51
We round up the psize to the nearest multiple of the asize or to the lsize, whichever is smaller. Once that's done, we allocate a new buffer of the appropriate size, zero the tail, and copy the data into it. This adds a small performance cost to these kinds of writes, but fixes the bookkeeping problems. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Co-authored-by: Matthew Ahrens <matthew.ahrens@delphix.com> Signed-off-by: Paul Dagnelie <pcd@delphix.com> Closes #12522 Closes #8462