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migration: provide ram_state_init() 

The old ram_state_init() is not really initializing the RAMState only,
but including lots of other stuff that is RAM-related.  Renaming it to
ram_init_all().  Instead, provide a real ram_state_init().

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 2017-10-19 14:31:57 +08:00 committed by Juan Quintela
parent 0331c8cabf
commit 7d00ee6ad6
1 changed files with 26 additions and 10 deletions
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36
migration/ram.c
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@ -2019,13 +2019,36 @@ err:
static int ram_state_init(RAMState **rsp)
{
*rsp = g_new0(RAMState, 1);
Error *local_err = NULL;
*rsp = g_try_new0(RAMState, 1);
if (!*rsp) {
error_report("%s: Init ramstate fail", __func__);
return -1;
}
qemu_mutex_init(&(*rsp)->bitmap_mutex);
qemu_mutex_init(&(*rsp)->src_page_req_mutex);
QSIMPLEQ_INIT(&(*rsp)->src_page_requests);
/*
* Count the total number of pages used by ram blocks not including any
* gaps due to alignment or unplugs.
*/
(*rsp)->migration_dirty_pages = ram_bytes_total() >> TARGET_PAGE_BITS;
ram_state_reset(*rsp);
return 0;
}
static int ram_init_all(RAMState **rsp)
{
Error *local_err = NULL;
if (ram_state_init(rsp)) {
return -1;
}
if (migrate_use_xbzrle()) {
XBZRLE_cache_lock();
XBZRLE.zero_target_page = g_malloc0(TARGET_PAGE_SIZE);
@ -2065,7 +2088,6 @@ static int ram_state_init(RAMState **rsp)
qemu_mutex_lock_ramlist();
rcu_read_lock();
ram_state_reset(*rsp);
/* Skip setting bitmap if there is no RAM */
if (ram_bytes_total()) {
@ -2083,12 +2105,6 @@ static int ram_state_init(RAMState **rsp)
}
}
/*
* Count the total number of pages used by ram blocks not including any
* gaps due to alignment or unplugs.
*/
(*rsp)->migration_dirty_pages = ram_bytes_total() >> TARGET_PAGE_BITS;
memory_global_dirty_log_start();
migration_bitmap_sync(*rsp);
qemu_mutex_unlock_ramlist();
@ -2120,7 +2136,7 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
/* migration has already setup the bitmap, reuse it. */
if (!migration_in_colo_state()) {
if (ram_state_init(rsp) != 0) {
if (ram_init_all(rsp) != 0) {
return -1;
}
}