add struct type FilenameFDPair

src/common_define.h

@@ -297,6 +297,11 @@ typedef struct {
     int fd;
 } SafeWriteFileInfo;
 
+typedef struct {
+    char filename[PATH_MAX];
+    int fd;
+} FilenameFDPair;
+
 typedef void (*FreeDataFunc)(void *ptr);
 typedef int (*CompareFunc)(void *p1, void *p2);
 typedef void* (*MallocFunc)(size_t size);

src/system_info.c

@@ -776,7 +776,6 @@ int get_sysinfo(struct fast_sysinfo *info)
 		page_size = sysconf(_SC_PAGESIZE);
 		info->freeram = vm.t_free * page_size;
 		info->sharedram = vm.t_rmshr * page_size;
-		//info->bufferram = vm.   //TODO:
 	}
 #endif