diff --git a/src/libos/src/fs/inode_file.rs b/src/libos/src/fs/inode_file.rs
index 65303a79..d61ebf4a 100644
--- a/src/libos/src/fs/inode_file.rs
+++ b/src/libos/src/fs/inode_file.rs
@@ -6,7 +6,7 @@ pub struct INodeFile {
     abs_path: String,
     offset: SgxMutex<usize>,
     access_mode: AccessMode,
-    status_flags: SgxRwLock<StatusFlags>,
+    status_flags: RwLock<StatusFlags>,
 }
 
 impl File for INodeFile {
@@ -216,7 +216,7 @@ impl INodeFile {
             abs_path: abs_path.to_owned(),
             offset: SgxMutex::new(0),
             access_mode,
-            status_flags: SgxRwLock::new(status_flags),
+            status_flags: RwLock::new(status_flags),
         })
     }
 
diff --git a/src/libos/src/fs/pipe.rs b/src/libos/src/fs/pipe.rs
index 520a39da..7cf1f212 100644
--- a/src/libos/src/fs/pipe.rs
+++ b/src/libos/src/fs/pipe.rs
@@ -21,11 +21,11 @@ impl Pipe {
         Ok(Pipe {
             reader: PipeReader {
                 inner: SgxMutex::new(ring_buf.reader),
-                status_flags: SgxRwLock::new(valid_flags),
+                status_flags: RwLock::new(valid_flags),
             },
             writer: PipeWriter {
                 inner: SgxMutex::new(ring_buf.writer),
-                status_flags: SgxRwLock::new(valid_flags),
+                status_flags: RwLock::new(valid_flags),
             },
         })
     }
@@ -34,7 +34,7 @@ impl Pipe {
 #[derive(Debug)]
 pub struct PipeReader {
     inner: SgxMutex<RingBufReader>,
-    status_flags: SgxRwLock<StatusFlags>,
+    status_flags: RwLock<StatusFlags>,
 }
 
 impl File for PipeReader {
@@ -95,7 +95,7 @@ unsafe impl Sync for PipeReader {}
 #[derive(Debug)]
 pub struct PipeWriter {
     inner: SgxMutex<RingBufWriter>,
-    status_flags: SgxRwLock<StatusFlags>,
+    status_flags: RwLock<StatusFlags>,
 }
 
 impl File for PipeWriter {
diff --git a/src/libos/src/process/process/builder.rs b/src/libos/src/process/process/builder.rs
index 23ff162a..e2f69f88 100644
--- a/src/libos/src/process/process/builder.rs
+++ b/src/libos/src/process/process/builder.rs
@@ -97,9 +97,9 @@ impl ProcessBuilder {
         // Build a new process
         let new_process = {
             let exec_path = self.exec_path.take().unwrap_or_default();
-            let parent = self.parent.take().map(|parent| SgxRwLock::new(parent));
+            let parent = self.parent.take().map(|parent| RwLock::new(parent));
             let inner = SgxMutex::new(ProcessInner::new());
-            let sig_dispositions = SgxRwLock::new(SigDispositions::new());
+            let sig_dispositions = RwLock::new(SigDispositions::new());
             let sig_queues = RwLock::new(SigQueues::new());
             let forced_exit_status = ForcedExitStatus::new();
             Arc::new(Process {
diff --git a/src/libos/src/process/process/mod.rs b/src/libos/src/process/process/mod.rs
index 46bf94a1..0a267d69 100644
--- a/src/libos/src/process/process/mod.rs
+++ b/src/libos/src/process/process/mod.rs
@@ -16,10 +16,10 @@ pub struct Process {
     pid: pid_t,
     exec_path: String,
     // Mutable info
-    parent: Option<SgxRwLock<ProcessRef>>,
+    parent: Option<RwLock<ProcessRef>>,
     inner: SgxMutex<ProcessInner>,
     // Signal
-    sig_dispositions: SgxRwLock<SigDispositions>,
+    sig_dispositions: RwLock<SigDispositions>,
     sig_queues: RwLock<SigQueues>,
     forced_exit_status: ForcedExitStatus,
 }
@@ -105,7 +105,7 @@ impl Process {
     }
 
     /// Get the process-wide signal dispositions.
-    pub fn sig_dispositions(&self) -> &SgxRwLock<SigDispositions> {
+    pub fn sig_dispositions(&self) -> &RwLock<SigDispositions> {
         &self.sig_dispositions
     }
 
diff --git a/src/libos/src/process/thread/builder.rs b/src/libos/src/process/thread/builder.rs
index a10ddc29..90544687 100644
--- a/src/libos/src/process/thread/builder.rs
+++ b/src/libos/src/process/thread/builder.rs
@@ -94,7 +94,7 @@ impl ThreadBuilder {
             .task
             .ok_or_else(|| errno!(EINVAL, "task is mandatory"))?;
         let tid = self.tid.unwrap_or_else(|| ThreadId::new());
-        let clear_ctid = SgxRwLock::new(self.clear_ctid);
+        let clear_ctid = RwLock::new(self.clear_ctid);
         let inner = SgxMutex::new(ThreadInner::new());
         let process = self
             .process
@@ -106,10 +106,10 @@ impl ThreadBuilder {
         let files = self.files.unwrap_or_default();
         let sched = self.sched.unwrap_or_default();
         let rlimits = self.rlimits.unwrap_or_default();
-        let name = SgxRwLock::new(self.name.unwrap_or_default());
+        let name = RwLock::new(self.name.unwrap_or_default());
         let sig_queues = RwLock::new(SigQueues::new());
-        let sig_mask = SgxRwLock::new(SigSet::new_empty());
-        let sig_tmp_mask = SgxRwLock::new(SigSet::new_empty());
+        let sig_mask = RwLock::new(SigSet::new_empty());
+        let sig_tmp_mask = RwLock::new(SigSet::new_empty());
         let sig_stack = SgxMutex::new(None);
         let profiler = if cfg!(feature = "syscall_timing") {
             SgxMutex::new(Some(ThreadProfiler::new()))
diff --git a/src/libos/src/process/thread/mod.rs b/src/libos/src/process/thread/mod.rs
index ee79029a..7f88c7da 100644
--- a/src/libos/src/process/thread/mod.rs
+++ b/src/libos/src/process/thread/mod.rs
@@ -24,9 +24,9 @@ pub struct Thread {
     // Immutable info
     tid: ThreadId,
     // Mutable info
-    clear_ctid: SgxRwLock<Option<NonNull<pid_t>>>,
+    clear_ctid: RwLock<Option<NonNull<pid_t>>>,
     inner: SgxMutex<ThreadInner>,
-    name: SgxRwLock<ThreadName>,
+    name: RwLock<ThreadName>,
     // Process
     process: ProcessRef,
     // Resources
@@ -37,8 +37,8 @@ pub struct Thread {
     rlimits: ResourceLimitsRef,
     // Signal
     sig_queues: RwLock<SigQueues>,
-    sig_mask: SgxRwLock<SigSet>,
-    sig_tmp_mask: SgxRwLock<SigSet>,
+    sig_mask: RwLock<SigSet>,
+    sig_tmp_mask: RwLock<SigSet>,
     sig_stack: SgxMutex<Option<SigStack>>,
     // System call timing
     profiler: SgxMutex<Option<ThreadProfiler>>,
@@ -86,7 +86,7 @@ impl Thread {
     }
 
     /// Get the per-thread signal mask.
-    pub fn sig_mask(&self) -> &SgxRwLock<SigSet> {
+    pub fn sig_mask(&self) -> &RwLock<SigSet> {
         &self.sig_mask
     }
 
@@ -94,7 +94,7 @@ impl Thread {
     ///
     /// The tmp mask is always cleared at the end of the execution
     /// of a syscall.
-    pub fn sig_tmp_mask(&self) -> &SgxRwLock<SigSet> {
+    pub fn sig_tmp_mask(&self) -> &RwLock<SigSet> {
         &self.sig_tmp_mask
     }