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savevm: split save_live_setup from save_live_state

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This patch splits stage 1 to its own function for both save_live
users, ram and block.  It is just a copy of the function, removing the
parts of the other stages.  Optimizations would came later.

Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Juan Quintela 2012-06-28 15:11:57 +02:00
parent 6bd6878133
commit d1315aac6e
4 changed files with 99 additions and 34 deletions
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35
block-migration.c
View file

@ -541,6 +541,33 @@ static void block_migration_cancel(void *opaque)
blk_mig_cleanup();
}
static int block_save_setup(QEMUFile *f, void *opaque)
{
int ret;
DPRINTF("Enter save live setup submitted %d transferred %d\n",
block_mig_state.submitted, block_mig_state.transferred);
init_blk_migration(f);
/* start track dirty blocks */
set_dirty_tracking(1);
flush_blks(f);
ret = qemu_file_get_error(f);
if (ret) {
blk_mig_cleanup();
return ret;
}
blk_mig_reset_dirty_cursor();
qemu_put_be64(f, BLK_MIG_FLAG_EOS);
return 0;
}
static int block_save_live(QEMUFile *f, int stage, void *opaque)
{
int ret;
@ -548,13 +575,6 @@ 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 == 1) {
init_blk_migration(f);
/* start track dirty blocks */
set_dirty_tracking(1);
}
flush_blks(f);
ret = qemu_file_get_error(f);
@ -710,6 +730,7 @@ static bool block_is_active(void *opaque)
SaveVMHandlers savevm_block_handlers = {
.set_params = block_set_params,
.save_live_setup = block_save_setup,
.save_live_state = block_save_live,
.load_state = block_load,
.cancel = block_migration_cancel,