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savevm: introduce is_active method

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Enable the creation of a method to tell migration if that section is
active and should be migrate.  We use it for blk-migration, that is
normally not active.  We don't create the method for RAM, as setups
without RAM are very strange O:-)

Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Juan Quintela 2012-06-27 10:59:15 +02:00
parent 9b5bfab05f
commit 6bd6878133
3 changed files with 22 additions and 7 deletions
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13
block-migration.c
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@ -548,13 +548,6 @@ static int block_save_live(QEMUFile *f, int stage, void *opaque)
DPRINTF("Enter save live stage %d submitted %d transferred %d\n",
stage, block_mig_state.submitted, block_mig_state.transferred);
if (block_mig_state.blk_enable != 1) {
/* no need to migrate storage */
qemu_put_be64(f, BLK_MIG_FLAG_EOS);
return 1;
}
if (stage == 1) {
init_blk_migration(f);
@ -710,11 +703,17 @@ static void block_set_params(const MigrationParams *params, void *opaque)
block_mig_state.blk_enable |= params->shared;
}
static bool block_is_active(void *opaque)
{
return block_mig_state.blk_enable == 1;
}
SaveVMHandlers savevm_block_handlers = {
.set_params = block_set_params,
.save_live_state = block_save_live,
.load_state = block_load,
.cancel = block_migration_cancel,
.is_active = block_is_active,
};
void blk_mig_init(void)