Dirt simple logging

Passes usertests and stressfs
Seems to recover correctly in a number of simple cases

1 files changed, 1 insertions, 0 deletions

diff --git a/fs.h b/fs.h
index 1e6137b..c9e34bf 100644
--- a/fs.h
+++ b/fs.h
@@ -13,6 +13,7 @@ struct superblock {
   uint size;         // Size of file system image (blocks)
   uint nblocks;      // Number of data blocks
   uint ninodes;      // Number of inodes.
+  uint nlog;         // Number of log blocks
 };
 
 #define NDIRECT 12