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authorKevin Wolf <kwolf@redhat.com>2017-01-24 13:58:00 +0100
committerKevin Wolf <kwolf@redhat.com>2017-02-28 20:40:36 +0100
commitdabd18f64c8800d441fd9fb232c2102e8409aa2e (patch)
tree96cd8be59b9a5f045edca263974b08d26f169884 /xen-common.c
parenta17c17a274f24f0c0259f89d288f29b8ce0511aa (diff)
hw/block: Introduce share-rw qdev property
By default, don't allow another writer for block devices that are attached to a guest device. For the cases where this setup is intended (e.g. using a cluster filesystem on the disk), the new option can be used to allow it. This change affects only devices using DEFINE_BLOCK_PROPERTIES(). Devices directly using DEFINE_PROP_DRIVE() still accept writers unconditionally. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Acked-by: Fam Zheng <famz@redhat.com>
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