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block drivers: expose requirement for write same alignment from formats
authorPaolo Bonzini <pbonzini@redhat.com>
Fri, 22 Nov 2013 12:39:51 +0000 (13:39 +0100)
committerStefan Hajnoczi <stefanha@redhat.com>
Tue, 3 Dec 2013 14:26:49 +0000 (15:26 +0100)
commitcffb1ec600de83f693a23578fc2f344c1af9b96f
treedc6c9e603941735a69cab5adecbeb9171a980e23
parent95de6d7078b029b73708059a17cef20f332adcb7
block drivers: expose requirement for write same alignment from formats

This will let misaligned but large requests use zero clusters.  This
is important because the cluster size is not guest visible.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
block/qcow2.c
block/qed.c
block/vmdk.c