60fd680193
An internal version that removes -only-migratable implications. It can be used for temporary migration blockers like dump-guest-memory. Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/*
|
|
* QEMU migration blockers
|
|
*
|
|
* Copyright IBM, Corp. 2008
|
|
*
|
|
* Authors:
|
|
* Anthony Liguori <aliguori@us.ibm.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2. See
|
|
* the COPYING file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#ifndef MIGRATION_BLOCKER_H
|
|
#define MIGRATION_BLOCKER_H
|
|
|
|
/**
|
|
* @migrate_add_blocker - prevent migration from proceeding
|
|
*
|
|
* @reason - an error to be returned whenever migration is attempted
|
|
*
|
|
* @errp - [out] The reason (if any) we cannot block migration right now.
|
|
*
|
|
* @returns - 0 on success, -EBUSY/-EACCES on failure, with errp set.
|
|
*/
|
|
int migrate_add_blocker(Error *reason, Error **errp);
|
|
|
|
/**
|
|
* @migrate_add_blocker_internal - prevent migration from proceeding without
|
|
* only-migrate implications
|
|
*
|
|
* @reason - an error to be returned whenever migration is attempted
|
|
*
|
|
* @errp - [out] The reason (if any) we cannot block migration right now.
|
|
*
|
|
* @returns - 0 on success, -EBUSY on failure, with errp set.
|
|
*
|
|
* Some of the migration blockers can be temporary (e.g., for a few seconds),
|
|
* so it shouldn't need to conflict with "-only-migratable". For those cases,
|
|
* we can call this function rather than @migrate_add_blocker().
|
|
*/
|
|
int migrate_add_blocker_internal(Error *reason, Error **errp);
|
|
|
|
/**
|
|
* @migrate_del_blocker - remove a blocking error from migration
|
|
*
|
|
* @reason - the error blocking migration
|
|
*/
|
|
void migrate_del_blocker(Error *reason);
|
|
|
|
#endif
|