diff --git a/components/fs/littlefs/lfs_api.c b/components/fs/littlefs/lfs_api.c
index 8596cb04..50da6e94 100644
--- a/components/fs/littlefs/lfs_api.c
+++ b/components/fs/littlefs/lfs_api.c
@@ -128,56 +128,30 @@ int LfsMount(const char * source, const char * target, const char * fileSystemTy
 {
 	int ret;
 
-	pthread_mutex_lock(&g_FslocalMutex);
 	g_fsOp.fsVops = &lfs_vops;
 	ret = lfs_mount(&g_lfs, (struct lfs_config*)data);
-	pthread_mutex_unlock(&g_FslocalMutex);
 
 	return ret;
 }
 
 int LfsUmount(const char * target)
 {
-	int ret;
-
-	pthread_mutex_lock(&g_FslocalMutex);
-	ret = lfs_unmount(&g_lfs);
-	pthread_mutex_unlock(&g_FslocalMutex);
-
-	return ret;	
+	return lfs_unmount(&g_lfs);
 }
 
 int LfsUnlink(const char * fileName)
 {
-	int ret;
-
-	pthread_mutex_lock(&g_FslocalMutex);
-	ret = lfs_remove(&g_lfs, fileName);
-	pthread_mutex_unlock(&g_FslocalMutex);
-
-	return ret;
+	return lfs_remove(&g_lfs, fileName);
 }
 
 int LfsMkdir(const char * dirName, mode_t mode)
 {
-	int ret;
-
-	pthread_mutex_lock(&g_FslocalMutex);
-	ret = lfs_mkdir(&g_lfs, dirName);
-	pthread_mutex_unlock(&g_FslocalMutex);
-
-	return ret;
+	return lfs_mkdir(&g_lfs, dirName);
 }
 
 int LfsRmdir(const char * dirName)
 {
-	int ret;
-
-	pthread_mutex_lock(&g_FslocalMutex);
-	ret = lfs_remove(&g_lfs, dirName);
-	pthread_mutex_unlock(&g_FslocalMutex);
-
-	return ret;
+	return lfs_remove(&g_lfs, dirName);
 }
 
 DIR *LfsOpendir(const char * dirName)
@@ -189,9 +163,7 @@ DIR *LfsOpendir(const char * dirName)
 		return NULL;
 	}
 
-	pthread_mutex_lock(&g_FslocalMutex);
 	ret = lfs_dir_open(&g_lfs, dir, dirName);
-	pthread_mutex_unlock(&g_FslocalMutex);
 
 	if (ret == 0) {
 		return (DIR *)dir;
@@ -205,7 +177,6 @@ struct dirent *LfsReaddir(DIR * dir)
 	int ret;
 	struct lfs_info lfsInfo;
 
-	pthread_mutex_lock(&g_FslocalMutex);
 	ret = lfs_dir_read(&g_lfs, (lfs_dir_t *)dir, &lfsInfo);
 	if (ret == 0) {
 		(void)memcpy_s(g_nameValue.d_name, sizeof(g_nameValue.d_name), lfsInfo.name, strlen(lfsInfo.name) + 1);
@@ -216,31 +187,22 @@ struct dirent *LfsReaddir(DIR * dir)
 		}
 
 		g_nameValue.d_reclen = lfsInfo.size;
-		pthread_mutex_unlock(&g_FslocalMutex);
 
 		return &g_nameValue;
 	}
 
-	pthread_mutex_unlock(&g_FslocalMutex);
 	return NULL;
 }
 
 int LfsClosedir(DIR * dir)
 {
-	int ret;
-
-	pthread_mutex_lock(&g_FslocalMutex);
-	ret = lfs_dir_close(&g_lfs, (lfs_dir_t *)dir);
-	pthread_mutex_unlock(&g_FslocalMutex);
-
-	return ret;
+	return lfs_dir_close(&g_lfs, (lfs_dir_t *)dir);
 }
 
 int LfsOpen(const char * path, int openFlag, int mode)
 {
 	int fd = INVALID_FD;
 
-	pthread_mutex_lock(&g_FslocalMutex);
 	LittleFsHandleStruct *fsHandle = GetFreeFd(&fd);
 	if (fd == INVALID_FD) {
 		goto errout;
@@ -251,56 +213,36 @@ int LfsOpen(const char * path, int openFlag, int mode)
 		goto errout;
 	}
 
-	pthread_mutex_unlock(&g_FslocalMutex);
 	return fd;
 errout:
-	pthread_mutex_unlock(&g_FslocalMutex);
 	return INVALID_FD;	
 }
 
 int LfsRead(int fd, void * buf, unsigned int len)
 {
-	int ret = VFS_ERROR;
-
 	if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
-		return ret;
+		return VFS_ERROR;
 	}
 
-	pthread_mutex_lock(&g_FslocalMutex);
-	ret = lfs_file_read(&g_lfs, &(g_handle[fd].file), buf, len);
-	pthread_mutex_unlock(&g_FslocalMutex);
-
-	return ret;
+	return lfs_file_read(&g_lfs, &(g_handle[fd].file), buf, len);
 }
 
 int LfsWrite(int fd, const void * buf, unsigned int len)
 {
-	int ret = VFS_ERROR;
-
 	if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
-		return ret;
+		return VFS_ERROR;
 	}
 
-	pthread_mutex_lock(&g_FslocalMutex);
-	ret = lfs_file_write(&g_lfs, &(g_handle[fd].file), buf, len);
-	pthread_mutex_unlock(&g_FslocalMutex);
-
-	return ret;
+	return lfs_file_write(&g_lfs, &(g_handle[fd].file), buf, len);
 }
 
 int LfsSeek(int fd, off_t offset, int whence)
 {
-	int ret = VFS_ERROR;
-
 	if (fd >= LITTLE_FS_MAX_OPEN_FILES && fd < 0) {
-		return ret;
+		return VFS_ERROR;
 	}
 
-	pthread_mutex_lock(&g_FslocalMutex);
-	ret = lfs_file_seek(&g_lfs, &(g_handle[fd].file), offset, whence);
-	pthread_mutex_unlock(&g_FslocalMutex);
-
-	return ret;
+	return lfs_file_seek(&g_lfs, &(g_handle[fd].file), offset, whence);
 }
 
 int LfsClose(int fd)
@@ -311,23 +253,15 @@ int LfsClose(int fd)
 		return ret;
 	}
 
-	pthread_mutex_lock(&g_FslocalMutex);
 	ret = lfs_file_close(&g_lfs, &(g_handle[fd].file));
 	g_handle[fd].useFlag = 0;
-	pthread_mutex_unlock(&g_FslocalMutex);
 
 	return ret;	
 }
 
 int LfsRename(const char * oldName, const char * newName)
 {
-	int ret;
-
-	pthread_mutex_lock(&g_FslocalMutex);
-	ret = lfs_rename(&g_lfs, oldName, newName);
-	pthread_mutex_unlock(&g_FslocalMutex);
-
-	return ret;
+	return lfs_rename(&g_lfs, oldName, newName);
 }
 
 int LfsStat(const char * path, struct stat * buf)
@@ -335,24 +269,16 @@ int LfsStat(const char * path, struct stat * buf)
 	int ret;
 	struct lfs_info info;
 
-	pthread_mutex_lock(&g_FslocalMutex);
 	ret = lfs_stat(&g_lfs, path, &info);
 	if (ret == 0) {
 		buf->st_size = info.size;
 	}
-	pthread_mutex_unlock(&g_FslocalMutex);
 
 	return ret;	
 }
 
 int LfsFsync(int fd)
 {
-	int ret;
-
-	pthread_mutex_lock(&g_FslocalMutex);
-	ret = lfs_file_sync(&g_lfs, &(g_handle[fd].file));
-	pthread_mutex_unlock(&g_FslocalMutex);
-
-	return ret;
+	return lfs_file_sync(&g_lfs, &(g_handle[fd].file));
 }