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authorTom Caputi <[email protected]>2018-02-27 12:04:05 -0500
committerBrian Behlendorf <[email protected]>2018-02-27 09:04:05 -0800
commit095495e0081c16a18641fc60e7c9872123a4f83e (patch)
tree6bfafa8d3c800a875fb042df43c08922b9cb8747 /udev
parent8b5814393f43d7eb7e4319120529d957a5f7bf8e (diff)
Raw DRR_OBJECT records must write raw data
b1d21733 made it possible for empty metadnode blocks to be compressed to a hole, fixing a bug that would cause invalid metadnode MACs when a send stream attempted to free objects and allowing the blocks to be reclaimed when they were no longer needed. However, this patch also introduced a race condition; if a txg sync occurred after a DRR_OBJECT_RANGE record was received but before any objects were added, the metadnode block would be compressed to a hole and lose all of its encryption parameters. This would cause subsequent DRR_OBJECT records to fail when they attempted to write their data into an unencrypted block. This patch defers the DRR_OBJECT_RANGE handling to receive_object() so that the encryption parameters are set with each object that is written into that block. Reviewed-by: Kash Pande <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Tom Caputi <[email protected]> Closes #7215 Closes #7236
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