Merge pull request #64688 from hzxuzhonghu/resourceList-opt

Automatic merge from submit-queue (batch tested with PRs 64688, 64451, 64504, 64506, 56358). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

resourceQuota: optimize Equals of ResourceLists

optimize ResourceList Equals function: reduce a loop.

**Release note**:

```release-note
NONE
```

pkg/quota/resources.go

@@ -27,6 +27,10 @@ import (
 
 // Equals returns true if the two lists are equivalent
 func Equals(a api.ResourceList, b api.ResourceList) bool {
+	if len(a) != len(b) {
+		return false
+	}
+
 	for key, value1 := range a {
 		value2, found := b[key]
 		if !found {
@@ -36,20 +40,16 @@ func Equals(a api.ResourceList, b api.ResourceList) bool {
 			return false
 		}
 	}
-	for key, value1 := range b {
-		value2, found := a[key]
-		if !found {
-			return false
-		}
-		if value1.Cmp(value2) != 0 {
-			return false
-		}
-	}
+
 	return true
 }
 
 // V1Equals returns true if the two lists are equivalent
 func V1Equals(a v1.ResourceList, b v1.ResourceList) bool {
+	if len(a) != len(b) {
+		return false
+	}
+
 	for key, value1 := range a {
 		value2, found := b[key]
 		if !found {
@@ -59,15 +59,7 @@ func V1Equals(a v1.ResourceList, b v1.ResourceList) bool {
 			return false
 		}
 	}
-	for key, value1 := range b {
-		value2, found := a[key]
-		if !found {
-			return false
-		}
-		if value1.Cmp(value2) != 0 {
-			return false
-		}
-	}
+
 	return true
 }