[NFC][sanitizer] Rename to Lock{Before,After}Fork StackDepotBase locking (#76303)

Followup to #76279

Author: vitalybuka

compiler-rt/lib/dfsan/dfsan_chained_origin_depot.cpp

@@ -19,10 +19,10 @@ static ChainedOriginDepot chainedOriginDepot;
 
 ChainedOriginDepot* GetChainedOriginDepot() { return &chainedOriginDepot; }
 
-void ChainedOriginDepotLockBeforeFork() { chainedOriginDepot.LockAll(); }
+void ChainedOriginDepotLockBeforeFork() { chainedOriginDepot.LockBeforeFork(); }
 
 void ChainedOriginDepotUnlockAfterFork(bool fork_child) {
-  chainedOriginDepot.UnlockAll();
+  chainedOriginDepot.UnlockAfterFork(fork_child);
 }
 
 }  // namespace __dfsan

compiler-rt/lib/msan/msan_chained_origin_depot.cpp

@@ -31,10 +31,10 @@ u32 ChainedOriginDepotGet(u32 id, u32 *other) {
   return chainedOriginDepot.Get(id, other);
 }
 
-void ChainedOriginDepotBeforeFork() { chainedOriginDepot.LockAll(); }
+void ChainedOriginDepotBeforeFork() { chainedOriginDepot.LockBeforeFork(); }
 
 void ChainedOriginDepotAfterFork(bool fork_child) {
-  chainedOriginDepot.UnlockAll();
+  chainedOriginDepot.UnlockAfterFork(fork_child);
 }
 
 } // namespace __msan

compiler-rt/lib/sanitizer_common/sanitizer_chained_origin_depot.cpp

@@ -139,9 +139,11 @@ u32 ChainedOriginDepot::Get(u32 id, u32 *other) {
   return desc.here_id;
 }
 
-void ChainedOriginDepot::LockAll() { depot.LockAll(); }
+void ChainedOriginDepot::LockBeforeFork() { depot.LockBeforeFork(); }
 
-void ChainedOriginDepot::UnlockAll() { depot.UnlockAll(); }
+void ChainedOriginDepot::UnlockAfterFork(bool fork_child) {
+  depot.UnlockAfterFork(fork_child);
+}
 
 void ChainedOriginDepot::TestOnlyUnmap() { depot.TestOnlyUnmap(); }
 

compiler-rt/lib/sanitizer_common/sanitizer_chained_origin_depot.h

@@ -32,8 +32,8 @@ class ChainedOriginDepot {
   // Retrieves the stored StackDepot ID for the given origin ID.
   u32 Get(u32 id, u32 *other);
 
-  void LockAll();
-  void UnlockAll();
+  void LockBeforeFork();
+  void UnlockAfterFork(bool fork_child);
   void TestOnlyUnmap();
 
  private:

compiler-rt/lib/sanitizer_common/sanitizer_stackdepot.cpp

@@ -216,15 +216,15 @@ StackTrace StackDepotGet(u32 id) {
 }
 
 void StackDepotLockBeforeFork() {
-  theDepot.LockAll();
+  theDepot.LockBeforeFork();
   compress_thread.LockAndStop();
   stackStore.LockAll();
 }
 
 void StackDepotUnlockAfterFork(bool fork_child) {
   stackStore.UnlockAll();
   compress_thread.Unlock();
-  theDepot.UnlockAll();
+  theDepot.UnlockAfterFork(fork_child);
 }
 
 void StackDepotPrintAll() {

compiler-rt/lib/sanitizer_common/sanitizer_stackdepotbase.h

@@ -52,8 +52,8 @@ class StackDepotBase {
     };
   }
 
-  void LockAll();
-  void UnlockAll();
+  void LockBeforeFork();
+  void UnlockAfterFork(bool fork_child);
   void PrintAll();
 
   void TestOnlyUnmap() {
@@ -160,14 +160,15 @@ StackDepotBase<Node, kReservedBits, kTabSizeLog>::Get(u32 id) {
 }
 
 template <class Node, int kReservedBits, int kTabSizeLog>
-void StackDepotBase<Node, kReservedBits, kTabSizeLog>::LockAll() {
+void StackDepotBase<Node, kReservedBits, kTabSizeLog>::LockBeforeFork() {
   for (int i = 0; i < kTabSize; ++i) {
     lock(&tab[i]);
   }
 }
 
 template <class Node, int kReservedBits, int kTabSizeLog>
-void StackDepotBase<Node, kReservedBits, kTabSizeLog>::UnlockAll() {
+void StackDepotBase<Node, kReservedBits, kTabSizeLog>::UnlockAfterFork(
+    bool fork_child) {
   for (int i = 0; i < kTabSize; ++i) {
     atomic_uint32_t *p = &tab[i];
     uptr s = atomic_load(p, memory_order_relaxed);