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block/amend: separate amend and create options for qemu-img

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Some options are only useful for creation
(or hard to be amended, like cluster size for qcow2), while some other
options are only useful for amend, like upcoming keyslot management
options for luks

Since currently only qcow2 supports amend, move all its options
to a common macro and then include it in each action option list.

In future it might be useful to remove some options which are
not supported anyway from amend list, which currently
cause an error message if amended.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200608094030.670121-5-mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Maxim Levitsky 2020-06-25 14:55:39 +02:00 • committed by Max Reitz
parent a3579bfa0a
commit df373fb0a3
3 changed files with 107 additions and 88 deletions
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4
include/block/block_int.h
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@ -420,6 +420,10 @@ struct BlockDriver {
/* List of options for creating images, terminated by name == NULL */
QemuOptsList *create_opts;
/* List of options for image amend */
QemuOptsList *amend_opts;
/*
* If this driver supports reopening images this contains a
* NULL-terminated list of the runtime options that can be