zero freed blocks

multi-block directories
track size of directory (size = number entries in use)
should namei (and other code that scans through directories) scan through all blocks of a directory and not use size?

1 files changed, 15 insertions, 0 deletions

diff --git a/userfs.c b/userfs.c
index 90aa1fa..2726de7 100644
--- a/userfs.c
+++ b/userfs.c
@@ -7,6 +7,7 @@
 // file system tests
 
 char buf[2000];
+char name[3];
 char *echo_args[] = { "echo", "hello", "goodbye", 0 };
 char *cat_args[] = { "cat", "README", 0 };
 
@@ -65,6 +66,20 @@ main(void)
   }
   close(fd);
   unlink("doesnotexist");
+  name[0] = 'a';
+  name[2] = '\0';
+  for (i = 0; i < 52; i++) {
+    name[1] = '0' + i;
+    fd = open(name, O_CREATE|O_RDWR);
+    close(fd);
+  }
+  name[0] = 'a';
+  name[2] = '\0';
+  for (i = 0; i < 52; i++) {
+    name[1] = '0' + i;
+    unlink(name);
+  }
+
   //exec("echo", echo_args);
   printf(stdout, "about to do exec\n");
   exec("cat", cat_args);