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-rw-r--r--pkg/tcpip/stack/linkaddrcache.go38
-rw-r--r--pkg/tcpip/stack/linkaddrcache_test.go16
2 files changed, 27 insertions, 27 deletions
diff --git a/pkg/tcpip/stack/linkaddrcache.go b/pkg/tcpip/stack/linkaddrcache.go
index 445e1db09..c68cbfed4 100644
--- a/pkg/tcpip/stack/linkaddrcache.go
+++ b/pkg/tcpip/stack/linkaddrcache.go
@@ -45,7 +45,7 @@ type linkAddrCache struct {
// resolved before failing.
resolutionAttempts int
- cache struct {
+ mu struct {
sync.Mutex
table map[tcpip.Address]*linkAddrEntry
lru linkAddrEntryList
@@ -146,9 +146,9 @@ func (c *linkAddrCache) AddLinkAddress(k tcpip.Address, v tcpip.LinkAddress) {
// happened to be inserted into the cache.
expiration := time.Now().Add(c.ageLimit)
- c.cache.Lock()
+ c.mu.Lock()
entry := c.getOrCreateEntryLocked(k)
- c.cache.Unlock()
+ c.mu.Unlock()
entry.mu.Lock()
defer entry.mu.Unlock()
@@ -166,18 +166,18 @@ func (c *linkAddrCache) AddLinkAddress(k tcpip.Address, v tcpip.LinkAddress) {
// cache is not full, a new entry with state incomplete is allocated and
// returned.
func (c *linkAddrCache) getOrCreateEntryLocked(k tcpip.Address) *linkAddrEntry {
- if entry, ok := c.cache.table[k]; ok {
- c.cache.lru.Remove(entry)
- c.cache.lru.PushFront(entry)
+ if entry, ok := c.mu.table[k]; ok {
+ c.mu.lru.Remove(entry)
+ c.mu.lru.PushFront(entry)
return entry
}
var entry *linkAddrEntry
- if len(c.cache.table) == linkAddrCacheSize {
- entry = c.cache.lru.Back()
+ if len(c.mu.table) == linkAddrCacheSize {
+ entry = c.mu.lru.Back()
entry.mu.Lock()
- delete(c.cache.table, entry.mu.addr)
- c.cache.lru.Remove(entry)
+ delete(c.mu.table, entry.mu.addr)
+ c.mu.lru.Remove(entry)
// Wake waiters and mark the soon-to-be-reused entry as expired.
entry.notifyCompletionLocked("" /* linkAddr */)
@@ -193,15 +193,15 @@ func (c *linkAddrCache) getOrCreateEntryLocked(k tcpip.Address) *linkAddrEntry {
entry.mu.addr = k
entry.mu.s = incomplete
entry.mu.Unlock()
- c.cache.table[k] = entry
- c.cache.lru.PushFront(entry)
+ c.mu.table[k] = entry
+ c.mu.lru.PushFront(entry)
return entry
}
// get reports any known link address for k.
func (c *linkAddrCache) get(k tcpip.Address, linkRes LinkAddressResolver, localAddr tcpip.Address, nic NetworkInterface, onResolve func(LinkResolutionResult)) (tcpip.LinkAddress, <-chan struct{}, *tcpip.Error) {
- c.cache.Lock()
- defer c.cache.Unlock()
+ c.mu.Lock()
+ defer c.mu.Unlock()
entry := c.getOrCreateEntryLocked(k)
entry.mu.Lock()
defer entry.mu.Unlock()
@@ -253,9 +253,9 @@ func (c *linkAddrCache) startAddressResolution(k tcpip.Address, linkRes LinkAddr
// succeeded and mark the entry accordingly. Returns true if request can stop,
// false if another request should be sent.
func (c *linkAddrCache) checkLinkRequest(now time.Time, k tcpip.Address, attempt int) bool {
- c.cache.Lock()
- defer c.cache.Unlock()
- entry, ok := c.cache.table[k]
+ c.mu.Lock()
+ defer c.mu.Unlock()
+ entry, ok := c.mu.table[k]
if !ok {
// Entry was evicted from the cache.
return true
@@ -273,7 +273,7 @@ func (c *linkAddrCache) checkLinkRequest(now time.Time, k tcpip.Address, attempt
}
// Max number of retries reached, delete entry.
entry.notifyCompletionLocked("" /* linkAddr */)
- delete(c.cache.table, k)
+ delete(c.mu.table, k)
default:
panic(fmt.Sprintf("invalid cache entry state: %s", s))
}
@@ -287,6 +287,6 @@ func newLinkAddrCache(nic *NIC, ageLimit, resolutionTimeout time.Duration, resol
resolutionTimeout: resolutionTimeout,
resolutionAttempts: resolutionAttempts,
}
- c.cache.table = make(map[tcpip.Address]*linkAddrEntry, linkAddrCacheSize)
+ c.mu.table = make(map[tcpip.Address]*linkAddrEntry, linkAddrCacheSize)
return c
}
diff --git a/pkg/tcpip/stack/linkaddrcache_test.go b/pkg/tcpip/stack/linkaddrcache_test.go
index 88fbbf3fe..1bf7fad09 100644
--- a/pkg/tcpip/stack/linkaddrcache_test.go
+++ b/pkg/tcpip/stack/linkaddrcache_test.go
@@ -124,12 +124,12 @@ func TestCacheOverflow(t *testing.T) {
}
}
// The earliest entries should no longer be in the cache.
- c.cache.Lock()
- defer c.cache.Unlock()
+ c.mu.Lock()
+ defer c.mu.Unlock()
for i := len(testAddrs) - 1; i >= len(testAddrs)-linkAddrCacheSize; i-- {
e := testAddrs[i]
- if entry, ok := c.cache.table[e.addr]; ok {
- t.Errorf("unexpected entry at c.cache.table[%s]: %#v", e.addr, entry)
+ if entry, ok := c.mu.table[e.addr]; ok {
+ t.Errorf("unexpected entry at c.mu.table[%s]: %#v", e.addr, entry)
}
}
}
@@ -163,10 +163,10 @@ func TestCacheConcurrent(t *testing.T) {
}
e = testAddrs[0]
- c.cache.Lock()
- defer c.cache.Unlock()
- if entry, ok := c.cache.table[e.addr]; ok {
- t.Errorf("unexpected entry at c.cache.table[%s]: %#v", e.addr, entry)
+ c.mu.Lock()
+ defer c.mu.Unlock()
+ if entry, ok := c.mu.table[e.addr]; ok {
+ t.Errorf("unexpected entry at c.mu.table[%s]: %#v", e.addr, entry)
}
}