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savevm: Refactor cancel operation in its own operation

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Intead of abusing stage with value -1.

Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Juan Quintela 2012-06-26 19:26:41 +02:00
parent 226aa6a9b1
commit 9b5bfab05f
4 changed files with 15 additions and 11 deletions
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11
arch_init.c
View File

@ -296,6 +296,11 @@ static void migration_end(void)
memory_global_dirty_log_stop();
}
static void ram_migration_cancel(void *opaque)
{
migration_end();
}
#define MAX_WAIT 50 /* ms, half buffered_file limit */
static int ram_save_live(QEMUFile *f, int stage, void *opaque)
@ -306,11 +311,6 @@ static int ram_save_live(QEMUFile *f, int stage, void *opaque)
int ret;
int i;
if (stage < 0) {
migration_end();
return 0;
}
memory_global_sync_dirty_bitmap(get_system_memory());
if (stage == 1) {
@ -537,6 +537,7 @@ done:
SaveVMHandlers savevm_ram_handlers = {
.save_live_state = ram_save_live,
.load_state = ram_load,
.cancel = ram_migration_cancel,
};
#ifdef HAS_AUDIO

10
block-migration.c
View File

@ -536,6 +536,11 @@ static void blk_mig_cleanup(void)
}
}
static void block_migration_cancel(void *opaque)
{
blk_mig_cleanup();
}
static int block_save_live(QEMUFile *f, int stage, void *opaque)
{
int ret;
@ -543,10 +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 (stage < 0) {
blk_mig_cleanup();
return 0;
}
if (block_mig_state.blk_enable != 1) {
/* no need to migrate storage */
@ -713,6 +714,7 @@ SaveVMHandlers savevm_block_handlers = {
.set_params = block_set_params,
.save_live_state = block_save_live,
.load_state = block_load,
.cancel = block_migration_cancel,
};
void blk_mig_init(void)

4
savevm.c
View File

@ -1703,8 +1703,8 @@ void qemu_savevm_state_cancel(QEMUFile *f)
SaveStateEntry *se;
QTAILQ_FOREACH(se, &savevm_handlers, entry) {
if (se->ops && se->ops->save_live_state) {
se->ops->save_live_state(f, -1, se->opaque);
if (se->ops && se->ops->cancel) {
se->ops->cancel(se->opaque);
}
}
}

1
vmstate.h
View File

@ -33,6 +33,7 @@ typedef struct SaveVMHandlers {
void (*set_params)(const MigrationParams *params, void * opaque);
SaveStateHandler *save_state;
int (*save_live_state)(QEMUFile *f, int stage, void *opaque);
void (*cancel)(void *opaque);
LoadStateHandler *load_state;
} SaveVMHandlers;