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migration: dump str in migrate_set_state trace

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Strings are more readable for debugging.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1504081950-2528-5-git-send-email-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  Fixed up merge with 977c73
This commit is contained in:
Peter Xu 2017-08-30 16:32:01 +08:00 committed by Dr. David Alan Gilbert
parent 04583a9e8f
commit a31fedeed7
2 changed files with 3 additions and 2 deletions
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3
migration/migration.c
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@ -913,8 +913,9 @@ void qmp_migrate_start_postcopy(Error **errp)
void migrate_set_state(int *state, int old_state, int new_state) void migrate_set_state(int *state, int old_state, int new_state)
{ {
assert(new_state < MIGRATION_STATUS__MAX);
if (atomic_cmpxchg(state, old_state, new_state) == old_state) { if (atomic_cmpxchg(state, old_state, new_state) == old_state) {
trace_migrate_set_state(new_state); trace_migrate_set_state(MigrationStatus_str(new_state));
migrate_generate_event(new_state); migrate_generate_event(new_state);
} }
} }

2
migration/trace-events
View File

@ -80,7 +80,7 @@ ram_save_queue_pages(const char *rbname, size_t start, size_t len) "%s: start: 0
# migration/migration.c # migration/migration.c
await_return_path_close_on_source_close(void) "" await_return_path_close_on_source_close(void) ""
await_return_path_close_on_source_joining(void) "" await_return_path_close_on_source_joining(void) ""
migrate_set_state(int new_state) "new state %d" migrate_set_state(const char *new_state) "new state %s"
migrate_fd_cleanup(void) "" migrate_fd_cleanup(void) ""
migrate_fd_error(const char *error_desc) "error=%s" migrate_fd_error(const char *error_desc) "error=%s"
migrate_fd_cancel(void) "" migrate_fd_cancel(void) ""