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[Xen-devel] potential problem with qdisk backend

  • To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Juergen Gross <jgross@xxxxxxxx>
  • Date: Fri, 6 May 2016 13:41:14 +0200
  • Delivery-date: Fri, 06 May 2016 11:41:29 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>

Looking at the qdisk backend implementation I wondered whether
blkif_get_x86_32_req() is really correct, especially for the
BLKIF_OP_DISCARD case. The Linux kernel based blk backend seems to
distinguish 32- and 64-bit layouts of blkif_request_discard while
qemu treats them to be the same.

Am I completely wrong here?


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