namei returns locked parent dir inode for create / unlink

don't hold fd table lock across idecref() (latter does block i/o)
idecref calls iput() in case last ref -> freeing inode
dir size is 512 * # blocks, so readi/writei &c work
unlink deletes dirent even if ip->nlink > 0

1 files changed, 1 insertions, 1 deletions

diff --git a/defs.h b/defs.h
index c8e1870..da47691 100644
--- a/defs.h
+++ b/defs.h
@@ -116,7 +116,7 @@ void ilock(struct inode *ip);
 void iunlock(struct inode *ip);
 void idecref(struct inode *ip);
 void iput(struct inode *ip);
-struct inode * namei(char *path, uint *);
+struct inode * namei(char *path, int, uint *);
 void stati(struct inode *ip, struct stat *st);
 int readi(struct inode *ip, char *xdst, uint off, uint n);
 int writei(struct inode *ip, char *addr, uint off, uint n);