[libvirt] [PATCH 0/4] Take 3 - Patchset to avoid uid problems in volume creation

[Laine Stump]

The last iteration of this work (which is now completely obsoleted) is
at https://www.redhat.com/archives/libvir-list/2010-January/msg00302.html

These patches are intended in particular to deal with problems
creating storage volumes on pools that are located on root-squashing
NFS servers, but hopefully they are overall just "a good thing" and
will solve other as-yet-unencountered/unreported problems.

Differences from previous version of the patches:

1) For completeness, chmod is done inside virFileCreate and
   virDirCreate as well as setting uid and gid.

2) Both of those functions now take an additional flag -
   VIR_FILE_CREATE_ALLOW_EXIST, which does exactly what you'd think.

3) I now always attempt to set uid/gid correctly, even if not running
   as root (per Serge Hallyn's suggestions during the last go around)

4) I've added a patch that uses similar logic to get the uid/gid/mode
   of the directories for newly created pools correct as well.
   (Previously, we'd been ignoring the permission bits of pool
   definition xml).