[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 2/2] libxl: fix libxl__device_disk_from_xs_be to parse backend domid
libxl__device_disk_from_xs_be was ignoring the backend domid, setting it to 0 by default. Fix this by parsing the backend disk path in order to fetch the backend domid. This fixes the issue reported when trying to block-detach disks that have it's backend on a driver domain. Signed-off-by: Roger Pau Monnà <roger.pau@xxxxxxxxxx> Reported-by: G.R. <firemeteor@xxxxxxxxxxxxxxxxxxxxx> Cc: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> Cc: Ian Campbell <ian.campbell@xxxxxxxxxx> --- tools/libxl/libxl.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c index 4aa2fe3..ada9d38 100644 --- a/tools/libxl/libxl.c +++ b/tools/libxl/libxl.c @@ -2232,9 +2232,16 @@ static int libxl__device_disk_from_xs_be(libxl__gc *gc, libxl_ctx *ctx = libxl__gc_owner(gc); unsigned int len; char *tmp; + int rc; libxl_device_disk_init(disk); + rc = sscanf(be_path, "/local/domain/%d/", &disk->backend_domid); + if (rc != 1) { + LOG(ERROR, "Unable to fetch device backend domid from %s", be_path); + goto cleanup; + } + /* "params" may not be present; but everything else must be. */ tmp = xs_read(ctx->xsh, XBT_NULL, libxl__sprintf(gc, "%s/params", be_path), &len); -- 1.7.7.5 (Apple Git-26) _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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