From a5c17b5f68ff7e37ce6e6e1f5457307fe07629e7 Mon Sep 17 00:00:00 2001 From: Juan Quintela Date: Wed, 17 Jun 2015 02:06:20 +0200 Subject: [PATCH] migration: Use cmpxchg correctly cmpxchg returns the old value Signed-off-by: Juan Quintela Reviewed-by: Dr. David Alan Gilbert --- migration/migration.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/migration/migration.c b/migration/migration.c index edb4f3ee92..1e34aa5f20 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -509,7 +509,7 @@ void qmp_migrate_set_parameters(bool has_compress_level, static void migrate_set_state(MigrationState *s, int old_state, int new_state) { - if (atomic_cmpxchg(&s->state, old_state, new_state) == new_state) { + if (atomic_cmpxchg(&s->state, old_state, new_state) == old_state) { trace_migrate_set_state(new_state); } }