Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging Block layer patches # gpg: Signature made Wed 02 Dec 2015 15:57:35 GMT using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: blkdebug: silence warning under qtest qcow2: Fix potential qemu-img check crash on 32 bit hosts Signed-off-by: Peter Maydell <peter.maydell@linaro.org>