[libvirt] [PATCH]: Export the 'label' on block devices
Jim Meyering
jim at meyering.net
Thu Oct 16 13:11:15 UTC 2008
Chris Lalancette <clalance at redhat.com> wrote:
> Daniel P. Berrange wrote:
>> I know you're just replicating the existing code, but both these functions can
>> be killed off and replaced with auto-generated code from our enum support
>> macros
>>
>> VIR_ENUM_IMPL(virStorageBackendDiskLabel,
>> VIR_STORAGE_POOL_DISK_LAST,
>> "dos", "dvh", "gpt", "mac",
>> "bsd", "pc98", "sun", "lvm2"
>> "unknown")
>>
>> And in the header file just
>>
>> VIR_ENUM_DECL(virStorageBackendDiskLabel)
>
> I've implemented this, and there was quite a bit of fallout from it. In
> particular, I had to change the signature of poolOptions.formatToString and
> formatFromString, which required a bunch of changes elsewhere in the storage
> code. The good news is that we remove quite a bit of very similar hand crafted
> code, so this patch actually removes more code than it adds. Tested by me as
> before.
Lots of good fallout.
ACK with a tiny tweak:
> Chris Lalancette
> Index: src/storage_backend.c
> ===================================================================
> RCS file: /data/cvs/libvirt/src/storage_backend.c,v
> retrieving revision 1.21
> diff -u -r1.21 storage_backend.c
> --- a/src/storage_backend.c 5 Sep 2008 12:03:45 -0000 1.21
> +++ b/src/storage_backend.c 16 Oct 2008 12:31:23 -0000
> @@ -60,6 +60,11 @@
> #include "storage_backend_fs.h"
> #endif
>
> +VIR_ENUM_IMPL(virStorageBackendPartTable,
> + VIR_STORAGE_POOL_DISK_LAST,
> + "unknown", "dos", "dvh", "gpt",
> + "mac", "bsd", "pc98", "sun", "lvm2");
> +
> static virStorageBackendPtr backends[] = {
> #if WITH_STORAGE_DIR
> &virStorageBackendDirectory,
> @@ -192,6 +197,30 @@
> return ret;
> }
>
> +const struct diskType const disk_types[] = {
s/const/static/
> + { VIR_STORAGE_POOL_DISK_LVM2, 0x218, 8, 0x31303020324D564CUL },
> + { VIR_STORAGE_POOL_DISK_GPT, 0x200, 8, 0x5452415020494645UL },
> + { VIR_STORAGE_POOL_DISK_DVH, 0x0, 4, 0x41A9E50BUL },
> + { VIR_STORAGE_POOL_DISK_MAC, 0x0, 2, 0x5245UL },
> + { VIR_STORAGE_POOL_DISK_BSD, 0x40, 4, 0x82564557UL },
> + { VIR_STORAGE_POOL_DISK_SUN, 0x1fc, 2, 0xBEDAUL },
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