xv6

commit 95692c4a8cf38765bac15b05d7a898e4ac8946e8
parent 432acbaf9e8817e16026bfcaaa8bca0ba7c8a6f8
Author: Frans Kaashoek <kaashoek@mit.edu>
Date:   Wed, 22 Aug 2012 20:28:58 -0400

Remove left-over from some logging plan making complete syscalls atomic
0 is not a system call (thanks to Peter Froehlich)

Diffstat:
M
syscall.c
 | 
4
+---
M
syscall.h
 | 
1
-

2 files changed, 1 insertion(+), 4 deletions(-)
diff --git a/syscall.c b/syscall.c
@@ -129,9 +129,7 @@ syscall(void)
   int num;
 
   num = proc->tf->eax;
-  if(num >= 0 && num < SYS_open && syscalls[num]) {
-    proc->tf->eax = syscalls[num]();
-  } else if (num >= SYS_open && num < NELEM(syscalls) && syscalls[num]) {
+  if(num > 0 && num < NELEM(syscalls) && syscalls[num]) {
     proc->tf->eax = syscalls[num]();
   } else {
     cprintf("%d %s: unknown sys call %d\n",
diff --git a/syscall.h b/syscall.h
@@ -13,7 +13,6 @@
 #define SYS_sbrk   12
 #define SYS_sleep  13
 #define SYS_uptime 14
-
 #define SYS_open   15
 #define SYS_write  16
 #define SYS_mknod  17