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migration: Change SaveStateEntry.instance_id into uint32_t

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It was always used as 32bit, so define it as used to be clear.
Instead of using -1 as the auto-gen magic value, we switch to
UINT32_MAX.  We also make sure that we don't auto-gen this value to
avoid overflowed instance IDs without being noticed.

Suggested-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Peter Xu 2019-10-16 10:29:31 +08:00 • committed by Juan Quintela
parent 1df2c9a26f
commit 93062e2361
5 changed files with 14 additions and 12 deletions
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2
stubs/vmstate.c
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@ -4,7 +4,7 @@
const VMStateDescription vmstate_dummy = {};
int vmstate_register_with_alias_id(VMStateIf *obj,
int instance_id,
uint32_t instance_id,
const VMStateDescription *vmsd,
void *base, int alias_id,
int required_for_version,