tree 602757756fa51dbe32b67fbd584495ab58edb69c
parent d50babbe300eedf33ea5b00a12c5df3a05bd96c7
author Bob Liu <bob.liu@oracle.com> 1437547209 +0800
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 1437743356 -0400

xen-blkfront: don't add indirect pages to list when !feature_persistent

We should consider info->feature_persistent when adding indirect page to list
info->indirect_pages, else the BUG_ON() in blkif_free() would be triggered.

When we are using persistent grants the indirect_pages list
should always be empty because blkfront has pre-allocated enough
persistent pages to fill all requests on the ring.

CC: stable@vger.kernel.org
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>