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Re: [Xen-devel] [PATCH v2 15/17] libxl: allow usage of char devices as block backends

On 05/06/14 17:41, Ian Campbell wrote:
> On Mon, 2014-06-02 at 17:08 +0200, Roger Pau Monne wrote:
>> On FreeBSD ZVOLs/disks/partitions are char devices, so libxl must
>> allow it's usage.
> Are they really, how... interesting...
> Do we think this should be made platform specific?

This is already platform specific, see libxl__try_phy_backend in
libxl_{linux/netbsd}.c, the problem is that we had this generic gate in
libxl_device.c that only allows block or regular files to be tested for
'phy' support. If it's more suitable, I think we can get rid of this
gate in libxl_device and rely on the OS specific version of
libxl__try_phy_backend to do the checking.


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