glusterd: Remove compilation warning

In glusterd_peerinfo_destroy, cast the passed 'strcut rcu_head *'
pointer to 'gd_rcu_head *' before use in caa_container_of() to prevent
the incompatible-pointer compilation warning.

Also, refactor peerinfo->head to peerinfo->rcu_head to reduce confusion
when reading code.

This change was developed on the git branch at [1]. This commit is a
combination of the following commits on the development branch.
  aa4a0bc Rename peerinfo->head to peerinfo->rcu_head
  c79144b Cast struct rcu_head * to gd_rcu_head * to prevent warning
  1d222c3 More head -> rcu_head renames

[1]: https://github.com/kshlm/glusterfs/tree/urcu

BUG: 1191030
Change-Id: I7ede02090413839563ce44fdf6289697b28777e7
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.org/9922
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>

0 files changed, 0 insertions, 0 deletions