Re: [PATCH v3] storage: Allow to delete device mapper disk partition

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On Sat, Feb 12, 2011 at 03:36:28PM +0800, Osier Yang wrote:
> The name convention of device mapper disk is different, and 'parted'
> can't be used to delete a device mapper disk partition. e.g.
> 
> Name                 Path
> -----------------------------------------
> 3600a0b80005ad1d7000093604cae912fp1 /dev/mapper/3600a0b80005ad1d7000093604cae912fp1
> 
> Error: Expecting a partition number.
> 
> This patch introduces 'dmsetup' to fix it.
> 
> Changes:
>   - New function "virIsDevMapperDevice" in "src/utils/utils.c"
>   - remove "is_dm_device" in "src/storage/parthelper.c", use
>     "virIsDevMapperDevice" instead.
>   - Requires "device-mapper" for 'with-storage-disk" in "libvirt.spec.in"
>   - Check "dmsetup" in 'configure.ac' for "with-storage-disk"
>   - Changes on "src/Makefile.am" to link against libdevmapper
>   - New entry for "virIsDevMapperDevice" in "src/libvirt_private.syms"
> 
> Changes from v1 to v3:
>   - s/virIsDeviceMapperDevice/virIsDevMapperDevice/g
>   - replace "virRun" with "virCommand"
>   - sort the list of util functions in "libvirt_private.syms"
>   - ATTRIBUTE_NONNULL(1) for virIsDevMapperDevice declaration.
> 
> e.g.
> 
> Name                 Path
> -----------------------------------------
> 3600a0b80005ad1d7000093604cae912fp1 /dev/mapper/3600a0b80005ad1d7000093604cae912fp1
> 
> Vol /dev/mapper/3600a0b80005ad1d7000093604cae912fp1 deleted
> 

  This looks fine to me, but since Eric reviewed the patch before and had
issues I will let him give the final ACK,

Daniel

-- 
Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
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http://veillard.com/ | virtualization library  http://libvirt.org/

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