On 17.05.2016 09:35, Fam Zheng wrote: > To allow overriding the default locking behavior when opening the image. > > Signed-off-by: Fam Zheng <f...@redhat.com> > --- > qapi/block-core.json | 20 +++++++++++++++++++- > 1 file changed, 19 insertions(+), 1 deletion(-) > > diff --git a/qapi/block-core.json b/qapi/block-core.json > index 98a20d2..3c54f64 100644 > --- a/qapi/block-core.json > +++ b/qapi/block-core.json > @@ -2032,6 +2032,21 @@ > '*read-pattern': 'QuorumReadPattern' } } > > ## > +# @BlockdevLockMode > +# > +# Describes the operation mode for the automatic conversion of plain > +# zero writes by the OS to driver specific optimized zero write commands.
I don't think so. ;-)
Max
> +#
> +# @off: Disabled
> +# @shared: Use shared lock for both RO and RW images.
> +# @exclusive: Use exclusive lock for RW images, and shared lock for RO
> images.
> +#
> +# Since: 2.7
> +##
> +{ 'enum': 'BlockdevLockMode',
> + 'data': [ 'off', 'shared', 'exclusive' ] }
> +
> +##
> # @BlockdevOptions
> #
> # Options for creating a block device. Many options are available for all
> @@ -2065,6 +2080,8 @@
> # @detect-zeroes: #optional detect and optimize zero writes (Since 2.1)
> # (default: off)
> #
> +# @lock-mode: #optional how to lock the image. (default: exclusive) (Since
> 2.7)
> +#
> # Remaining options are determined by the block driver.
> #
> # Since: 1.7
> @@ -2082,7 +2099,8 @@
> '*stats-account-invalid': 'bool',
> '*stats-account-failed': 'bool',
> '*stats-intervals': ['int'],
> - '*detect-zeroes': 'BlockdevDetectZeroesOptions' },
> + '*detect-zeroes': 'BlockdevDetectZeroesOptions',
> + '*lock-mode': 'BlockdevLockMode' },
> 'discriminator': 'driver',
> 'data': {
> 'archipelago':'BlockdevOptionsArchipelago',
>
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