scheduler: implement nice

kernel-src/arch/x86-64/syscall.asm

@@ -92,6 +92,7 @@ extern syscall_sigtimedwait
 extern syscall_sigpending
 extern syscall_killthread
 extern syscall_shutdown
+extern syscall_nice
 syscalltab:
 dq syscall_print
 dq syscall_mmap
@@ -186,7 +187,8 @@ dq syscall_sigtimedwait
 dq syscall_sigpending
 dq syscall_killthread
 dq syscall_shutdown
-syscallcount equ 93
+dq syscall_nice
+syscallcount equ 94
 section .text
 global arch_syscall_entry
 ; on entry:

kernel-src/arch/x86-64/syscalllog.c

@@ -5,7 +5,7 @@
 
 #ifdef SYSCALL_LOGGING
 
-#define SYSCALL_COUNT 93
+#define SYSCALL_COUNT 94
 #define LOGSTR(x) arch_e9_puts(x)
 
 static char *name[] = {
@@ -101,7 +101,8 @@ static char *name[] = {
 	"sigtimedwait",
 	"sigpending",
 	"killthread",
-	"shutdown"
+	"shutdown",
+	"nice"
 };
 
 static char *args[] = {
@@ -195,9 +196,10 @@ static char *args[] = {
 	"egid %d", // setegid
 	"sigset %p", // sigsuspend
 	"sigset %p info %p, timespec %p", // sigtimedwait
-	"sigset %p\n", // sigpending
+	"sigset %p", // sigpending
 	"pid %d tid %d signal %d", // killthread
-	"how %d" // shutdown
+	"how %d", // shutdown
+	"off %d" // nice
 };
 
 #endif