X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=folly%2FRWSpinLock.h;h=cc4f480a4e29b123cafd16af71963bbd3b63f03e;hb=b367f0fada0a53564f83e5072bbd45994a1c0795;hp=63dac2f5dbc294efa737315b1fbd34a0c243583b;hpb=79b78eaaf88ead9fa6543822c193b4e86d0e2395;p=folly.git

diff --git a/folly/RWSpinLock.h b/folly/RWSpinLock.h
index 63dac2f5..cc4f480a 100644
--- a/folly/RWSpinLock.h
+++ b/folly/RWSpinLock.h
@@ -307,7 +307,7 @@ class RWSpinLock {
 
   class ReadHolder {
    public:
-    explicit ReadHolder(RWSpinLock* lock = nullptr) : lock_(lock) {
+    explicit ReadHolder(RWSpinLock* lock) : lock_(lock) {
       if (lock_) lock_->lock_shared();
     }
 
@@ -360,7 +360,7 @@ class RWSpinLock {
 
   class UpgradedHolder {
    public:
-    explicit UpgradedHolder(RWSpinLock* lock = nullptr) : lock_(lock) {
+    explicit UpgradedHolder(RWSpinLock* lock) : lock_(lock) {
       if (lock_) lock_->lock_upgrade();
     }
 
@@ -409,7 +409,7 @@ class RWSpinLock {
 
   class WriteHolder {
    public:
-    explicit WriteHolder(RWSpinLock* lock = nullptr) : lock_(lock) {
+    explicit WriteHolder(RWSpinLock* lock) : lock_(lock) {
       if (lock_) lock_->lock();
     }
 
@@ -692,8 +692,7 @@ class RWTicketSpinLockT {
     ReadHolder(ReadHolder const&) = delete;
     ReadHolder& operator=(ReadHolder const&) = delete;
 
-    explicit ReadHolder(RWSpinLock *lock = nullptr) :
-      lock_(lock) {
+    explicit ReadHolder(RWSpinLock* lock) : lock_(lock) {
       if (lock_) lock_->lock_shared();
     }
 
@@ -732,7 +731,7 @@ class RWTicketSpinLockT {
     WriteHolder(WriteHolder const&) = delete;
     WriteHolder& operator=(WriteHolder const&) = delete;
 
-    explicit WriteHolder(RWSpinLock *lock = nullptr) : lock_(lock) {
+    explicit WriteHolder(RWSpinLock* lock) : lock_(lock) {
       if (lock_) lock_->lock();
     }
     explicit WriteHolder(RWSpinLock &lock) : lock_ (&lock) {