[PATCH] 2.5.68 FUTEX support should be optional

Not everyone needs futex support, so it should be optional.  This is
needed for small platforms.

-ch
mailto:ch(at)murgatroid.com
mailto:ch(at)hpl.hp.com

diff -X dontdiff.txt -Naurp linux-2.5.68-rmk1/kernel/Makefile linux-2.5.68-rmk1-ceiva1/kernel/Makefile
--- linux-2.5.68-rmk1/kernel/Makefile	2003-04-19 19:48:55.000000000 -0700
+++ linux-2.5.68-rmk1-ceiva1/kernel/Makefile	2003-05-13 20:58:54.000000000 -0700
@@ -5,9 +5,10 @@
 obj-y     = sched.o fork.o exec_domain.o panic.o printk.o profile.o \
 	    exit.o itimer.o time.o softirq.o resource.o \
 	    sysctl.o capability.o ptrace.o timer.o user.o \
-	    signal.o sys.o kmod.o workqueue.o futex.o pid.o \
+	    signal.o sys.o kmod.o workqueue.o pid.o \
 	    rcupdate.o intermodule.o extable.o params.o posix-timers.o
 
+obj-$(CONFIG_FUTEXT) += futex.o
 obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o
 obj-$(CONFIG_SMP) += cpu.o
 obj-$(CONFIG_UID16) += uid16.o
diff -X dontdiff.txt -Naurp linux-2.5.68-rmk1/kernel/sys.c linux-2.5.68-rmk1-ceiva1/kernel/sys.c
--- linux-2.5.68-rmk1/kernel/sys.c	2003-04-19 19:48:51.000000000 -0700
+++ linux-2.5.68-rmk1-ceiva1/kernel/sys.c	2003-05-13 21:06:02.000000000 -0700
@@ -226,6 +226,7 @@ cond_syscall(sys_shutdown)
 cond_syscall(sys_sendmsg)
 cond_syscall(sys_recvmsg)
 cond_syscall(sys_socketcall)
+cond_syscall(sys_futex)
 
 static int set_one_prio(struct task_struct *p, int niceval, int error)
 {
diff -X dontdiff.txt -Naurp linux-2.5.68-rmk1/init/Kconfig linux-2.5.68-rmk1-ceiva1/init/Kconfig
--- linux-2.5.68-rmk1/init/Kconfig	2003-04-19 19:50:38.000000000 -0700
+++ linux-2.5.68-rmk1-ceiva1/init/Kconfig	2003-05-13 21:25:39.000000000 -0700
@@ -108,8 +108,14 @@ config LOG_BUF_SHIFT
 		     13 =>  8 KB
 		     12 =>  4 KB
 
-endmenu
 
+config FUTEX
+       bool "Futex support"
+       default y
+       ---help---
+       Say Y if you want support for Fast Userspace Mutexes (Futexes).
+
+endmenu
 
 menu "Loadable module support"
 
-
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