[PULL,16/34] throttle: Make throttle_max_is_missing_limit() set errp

Commit Message

Kevin Wolf Feb. 22, 2016, 4:32 p.m. UTC

From: Alberto Garcia <[e-mail]>

The caller does not need to set it, and this will allow us to refactor
this function later.

Signed-off-by: Alberto Garcia <[e-mail]>
Reviewed-by: Kevin Wolf <[e-mail]>
Reviewed-by: Stefan Hajnoczi <[e-mail]>
Signed-off-by: Kevin Wolf <[e-mail]>
---
 blockdev.c              | 4 +---
 include/qemu/throttle.h | 2 +-
 tests/test-throttle.c   | 6 +++---
 util/throttle.c         | 5 ++++-
 4 files changed, 9 insertions(+), 8 deletions(-)

Patch

diff --git a/blockdev.c b/blockdev.c
index 14e89de..52aabf7 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -355,9 +355,7 @@  static bool check_throttle_config(ThrottleConfig *cfg, Error **errp)
         return false;
     }
 
-    if (throttle_max_is_missing_limit(cfg)) {
-        error_setg(errp, "bps_max/iops_max require corresponding"
-                         " bps/iops values");
+    if (throttle_max_is_missing_limit(cfg, errp)) {
         return false;
     }
 
diff --git a/include/qemu/throttle.h b/include/qemu/throttle.h
index 69cf171..03bdec0 100644
--- a/include/qemu/throttle.h
+++ b/include/qemu/throttle.h
@@ -110,7 +110,7 @@  bool throttle_conflicting(ThrottleConfig *cfg, Error **errp);
 
 bool throttle_is_valid(ThrottleConfig *cfg);
 
-bool throttle_max_is_missing_limit(ThrottleConfig *cfg);
+bool throttle_max_is_missing_limit(ThrottleConfig *cfg, Error **errp);
 
 void throttle_config(ThrottleState *ts,
                      ThrottleTimers *tt,
diff --git a/tests/test-throttle.c b/tests/test-throttle.c
index 579b8af..49bd3bc 100644
--- a/tests/test-throttle.c
+++ b/tests/test-throttle.c
@@ -338,15 +338,15 @@  static void test_max_is_missing_limit(void)
         memset(&cfg, 0, sizeof(cfg));
         cfg.buckets[i].max = 100;
         cfg.buckets[i].avg = 0;
-        g_assert(throttle_max_is_missing_limit(&cfg));
+        g_assert(throttle_max_is_missing_limit(&cfg, NULL));
 
         cfg.buckets[i].max = 0;
         cfg.buckets[i].avg = 0;
-        g_assert(!throttle_max_is_missing_limit(&cfg));
+        g_assert(!throttle_max_is_missing_limit(&cfg, NULL));
 
         cfg.buckets[i].max = 0;
         cfg.buckets[i].avg = 100;
-        g_assert(!throttle_max_is_missing_limit(&cfg));
+        g_assert(!throttle_max_is_missing_limit(&cfg, NULL));
     }
 }
 
diff --git a/util/throttle.c b/util/throttle.c
index 564e132..77010b4 100644
--- a/util/throttle.c
+++ b/util/throttle.c
@@ -306,13 +306,16 @@  bool throttle_is_valid(ThrottleConfig *cfg)
 
 /* check if bps_max/iops_max is used without bps/iops
  * @cfg: the throttling configuration to inspect
+ * @errp: error object
  */
-bool throttle_max_is_missing_limit(ThrottleConfig *cfg)
+bool throttle_max_is_missing_limit(ThrottleConfig *cfg, Error **errp)
 {
     int i;
 
     for (i = 0; i < BUCKETS_COUNT; i++) {
         if (cfg->buckets[i].max && !cfg->buckets[i].avg) {
+            error_setg(errp, "bps_max/iops_max require corresponding"
+                       " bps/iops values");
             return true;
         }
     }