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authorDr. David Alan Gilbert <dgilbert@redhat.com>2017-09-25 12:29:12 +0100
committerDr. David Alan Gilbert <dgilbert@redhat.com>2017-09-27 11:35:59 +0100
commit44b1ff319c4781c7ab13f7e119b3114a1e6a52e2 (patch)
treeb8e8aa9c74c890808876e7a5969b69ac25c1930a /migration
parent9ac78b6171bec47083a9b6ce88dc1f114caea2f9 (diff)
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migration: pre_save return int
Modify the pre_save method on VMStateDescription to return an int rather than void so that it potentially can fail. Changed zillions of devices to make them return 0; the only case I've made it return non-0 is hw/intc/s390_flic_kvm.c that already had an error_report/return case. Note: If you add an error exit in your pre_save you must emit an error_report to say why. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170925112917.21340-2-dgilbert@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration')
-rw-r--r--migration/colo-comm.c4
-rw-r--r--migration/global_state.c4
-rw-r--r--migration/savevm.c4
3 files changed, 9 insertions, 3 deletions
diff --git a/migration/colo-comm.c b/migration/colo-comm.c
index b61aa19..df26e4d 100644
--- a/migration/colo-comm.c
+++ b/migration/colo-comm.c
@@ -34,11 +34,13 @@ COLOMode get_colo_mode(void)
}
}
-static void colo_info_pre_save(void *opaque)
+static int colo_info_pre_save(void *opaque)
{
COLOInfo *s = opaque;
s->colo_requested = migrate_colo_enabled();
+
+ return 0;
}
static bool colo_info_need(void *opaque)
diff --git a/migration/global_state.c b/migration/global_state.c
index dfdaf63..8e8ab5c 100644
--- a/migration/global_state.c
+++ b/migration/global_state.c
@@ -101,12 +101,14 @@ static int global_state_post_load(void *opaque, int version_id)
return 0;
}
-static void global_state_pre_save(void *opaque)
+static int global_state_pre_save(void *opaque)
{
GlobalState *s = opaque;
trace_migrate_global_state_pre_save((char *)s->runstate);
s->size = strlen((char *)s->runstate) + 1;
+
+ return 0;
}
static const VMStateDescription vmstate_globalstate = {
diff --git a/migration/savevm.c b/migration/savevm.c
index 2478352..e9feade 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -312,7 +312,7 @@ static SaveState savevm_state = {
.global_section_id = 0,
};
-static void configuration_pre_save(void *opaque)
+static int configuration_pre_save(void *opaque)
{
SaveState *state = opaque;
const char *current_name = MACHINE_GET_CLASS(current_machine)->name;
@@ -320,6 +320,8 @@ static void configuration_pre_save(void *opaque)
state->len = strlen(current_name);
state->name = current_name;
state->target_page_bits = qemu_target_page_bits();
+
+ return 0;
}
static int configuration_pre_load(void *opaque)