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xen-devel
Re: [Xen-devel] [PATCH] xl: Special case tap/aio for disk validation
Ian Campbell writes ("Re: [Xen-devel] [PATCH] xl: Special case tap/aio for disk
validation"):
> FWIW xend notices a relative path and wacks a "/dev/" on the front.
Oh dear. So is the syntax
some:pile:of:useless:prefixes:sponge
allowed to mean /dev/sponge ? What if you want to refer to
/dev/sponge:1 ? I guess that probably doesn't work right now.
So the right algorithm is:
- rhs starts with '/': it's a pathname
- rhs has a colon: it's a prefix
- rhs has neither: hope it's a pathname in /dev
?
> Shall we pre-deprecate the someprefix: along with all the
> tap:{aio,ioemu,FOO}: stuff while we are at this? IOW the syntax we want
> to actually support going forward would be:
> (raw|vhd|qcow2|qcow):/path/to/something
> with the toolstack being at liberty to best decide how to achieve the
> necessary format support? (optionally raw: as the default). All the rest
> of the format is really semantically meaningless and supported only for
> compatibility with existing configuration files.
Yes.
Ian.
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