[PATCH 3/9] qemu-file: make qemu_file_[sg]et_rate_limit() use an uint64_t

[Juan Quintela]

It is really size_t.  Everything else uses uint64_t, so move this to
uint64_t as well.  A size can't be negative anyways.

Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 migration/migration.c | 6 +++---
 migration/qemu-file.c | 8 ++++----
 migration/qemu-file.h | 4 ++--
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/migration/migration.c b/migration/migration.c
index 232e387109..ee75c6cfbd 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -2119,7 +2119,7 @@ static int postcopy_start(MigrationState *ms)
      */
     /* 0 max-postcopy-bandwidth means unlimited */
     if (!bandwidth) {
-        qemu_file_set_rate_limit(ms->to_dst_file, INT64_MAX);
+        qemu_file_set_rate_limit(ms->to_dst_file, UINT64_MAX);
     } else {
         qemu_file_set_rate_limit(ms->to_dst_file, bandwidth / 
XFER_LIMIT_RATIO);
     }
@@ -2301,7 +2301,7 @@ static void migration_completion(MigrationState *s)
             }
             if (ret >= 0) {
                 s->block_inactive = !migrate_colo();
-                qemu_file_set_rate_limit(s->to_dst_file, INT64_MAX);
+                qemu_file_set_rate_limit(s->to_dst_file, UINT64_MAX);
                 ret = qemu_savevm_state_complete_precopy(s->to_dst_file, false,
                                                          s->block_inactive);
             }
@@ -3049,7 +3049,7 @@ static void *bg_migration_thread(void *opaque)
     rcu_register_thread();
     object_ref(OBJECT(s));
 
-    qemu_file_set_rate_limit(s->to_dst_file, INT64_MAX);
+    qemu_file_set_rate_limit(s->to_dst_file, UINT64_MAX);
 
     setup_start = qemu_clock_get_ms(QEMU_CLOCK_HOST);
     /*
diff --git a/migration/qemu-file.c b/migration/qemu-file.c
index ee04240a21..b322b363cf 100644
--- a/migration/qemu-file.c
+++ b/migration/qemu-file.c
@@ -43,7 +43,7 @@ struct QEMUFile {
      * Maximum amount of data in bytes to transfer during one
      * rate limiting time window
      */
-    int64_t rate_limit_max;
+    uint64_t rate_limit_max;
     /*
      * Total amount of data in bytes queued for transfer
      * during this rate limiting time window
@@ -748,18 +748,18 @@ int qemu_file_rate_limit(QEMUFile *f)
     if (qemu_file_get_error(f)) {
         return 1;
     }
-    if (f->rate_limit_max > 0 && f->rate_limit_used > f->rate_limit_max) {
+    if (f->rate_limit_used > f->rate_limit_max) {
         return 1;
     }
     return 0;
 }
 
-int64_t qemu_file_get_rate_limit(QEMUFile *f)
+uint64_t qemu_file_get_rate_limit(QEMUFile *f)
 {
     return f->rate_limit_max;
 }
 
-void qemu_file_set_rate_limit(QEMUFile *f, int64_t limit)
+void qemu_file_set_rate_limit(QEMUFile *f, uint64_t limit)
 {
     f->rate_limit_max = limit;
 }
diff --git a/migration/qemu-file.h b/migration/qemu-file.h
index d16cd50448..9e158c00f6 100644
--- a/migration/qemu-file.h
+++ b/migration/qemu-file.h
@@ -138,8 +138,8 @@ void qemu_file_reset_rate_limit(QEMUFile *f);
  * need to be applied to the rate limiting calcuations
  */
 void qemu_file_acct_rate_limit(QEMUFile *f, int64_t len);
-void qemu_file_set_rate_limit(QEMUFile *f, int64_t new_rate);
-int64_t qemu_file_get_rate_limit(QEMUFile *f);
+void qemu_file_set_rate_limit(QEMUFile *f, uint64_t new_rate);
+uint64_t qemu_file_get_rate_limit(QEMUFile *f);
 int qemu_file_get_error_obj(QEMUFile *f, Error **errp);
 int qemu_file_get_error_obj_any(QEMUFile *f1, QEMUFile *f2, Error **errp);
 void qemu_file_set_error_obj(QEMUFile *f, int ret, Error *err);
-- 
2.40.0