Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block layer patches for 2.4.0-rc1
# gpg: Signature made Tue Jul 14 16:15:35 2015 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream:
rbd: fix ceph settings precedence
rbd: make qemu's cache setting override any ceph setting
MAINTAINERS: update email address
rbd: remove unused constants and fields
block: Fix backing file child when modifying graph
block: Reorder cleanups in bdrv_close()
block: Introduce bdrv_unref_child()
block: Introduce bdrv_open_child()
block: Move bdrv_attach_child() calls up the call chain
nvme: properly report volatile write caches
nvme: implement the Flush command
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>