Various cleanup:

 - Got rid of dummy proc[0].  Now proc[0] is init.
 - Added initcode.S to exec /init, so that /init is
   just a regular binary.
 - Moved exec out of sysfile to exec.c
 - Moved code dealing with fs guts (like struct inode)
   from sysfile.c to fs.c.  Code dealing with system call
   arguments stays in sysfile.c
 - Refactored directory routines in fs.c; should be simpler.
 - Changed iget to return *unlocked* inode structure.
   This solves the lookup-then-use race in namei
   without introducing deadlocks.
   It also enabled getting rid of the dummy proc[0].

1 files changed, 0 insertions, 1 deletions

diff --git a/syscall.c b/syscall.c
index 7f4caa1..b18b62c 100644
--- a/syscall.c
+++ b/syscall.c
@@ -53,7 +53,6 @@ fetchstr(struct proc *p, uint addr, char **pp)
 int
 argint(int argno, int *ip)
 {
-
   return fetchint(cp, cp->tf->esp + 4 + 4*argno, ip);
 }