Merge commit 'qemu-svn/stable_0_10' into maint/2.6.30
* commit 'qemu-svn/stable_0_10':
Fix savevm after BDRV_FILE size enforcement
stop dirty tracking just at the end of migration (Glauber Costa)
create qemu_file_set_error (Glauber Costa)
propagate error on failed completion (Glauber Costa)
qcow2: fix image creation for large, > ~2TB, images (Chris Wright)
pci_add storage: fix error handling for 'if' parameter (Eduardo Habkost)
Fix (at least one cause of) qcow2 corruption. (Nolan Leake)
Fix oops on 2.6.25 guest (Rusty Russell)
SH4: Add support for kernel cmdline