fill st_blksize of struct stat in dfs_def.h(this filed has nothing to do with jffs2)

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2369 bbd45198-f89e-11dd-88c7-29a3b14d5316

components/dfs/filesystems/jffs2/dfs_jffs2.c

@@ -684,7 +684,7 @@ static int dfs_jffs2_stat(struct dfs_filesystem* fs, const char *path, struct st
 	st->st_dev  = 0;
 	st->st_size = s.st_size;
 	st->st_mtime = s.st_mtime;
-	/*st->st_blksize = ;*/ //fixme: what's this field?
+	st->st_blksize = 1;//fixme: what's this field?
 
 	return 0;
 }