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-rw-r--r--module/zfs/zio.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/module/zfs/zio.c b/module/zfs/zio.c
index 9458f3924..7544cf4e3 100644
--- a/module/zfs/zio.c
+++ b/module/zfs/zio.c
@@ -1532,9 +1532,21 @@ zio_write_compress(zio_t *zio)
*bp = zio->io_bp_orig;
zio->io_pipeline = zio->io_orig_pipeline;
+ } else if ((zio->io_flags & ZIO_FLAG_RAW_ENCRYPT) != 0 &&
+ zp->zp_type == DMU_OT_DNODE) {
+ /*
+ * The DMU actually relies on the zio layer's compression
+ * to free metadnode blocks that have had all contained
+ * dnodes freed. As a result, even when doing a raw
+ * receive, we must check whether the block can be compressed
+ * to a hole.
+ */
+ psize = zio_compress_data(ZIO_COMPRESS_EMPTY,
+ zio->io_abd, NULL, lsize);
+ if (psize == 0)
+ compress = ZIO_COMPRESS_OFF;
} else {
ASSERT3U(psize, !=, 0);
-
}
/*