X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=kernel%2Fstop_machine.c;h=daabb74ee0bc2648dda71286eb0331074af5f28b;hb=18062a91d2ddc40e19fc674afeb7cad58cfa23ab;hp=b3d4dc858e3540a521ee69c32a9eab1798a67a44;hpb=51c83a946d5c8bc05eef7828197080f31fa33601;p=linux-2.6

diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index b3d4dc858e..daabb74ee0 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -1,8 +1,12 @@
-#include <linux/stop_machine.h>
-#include <linux/kthread.h>
-#include <linux/sched.h>
+/* Copyright 2005 Rusty Russell rusty@rustcorp.com.au IBM Corporation.
+ * GPL v2 and any later version.
+ */
 #include <linux/cpu.h>
 #include <linux/err.h>
+#include <linux/kthread.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/stop_machine.h>
 #include <linux/syscalls.h>
 #include <asm/atomic.h>
 #include <asm/semaphore.h>
@@ -87,13 +91,9 @@ static int stop_machine(void)
 {
 	int i, ret = 0;
 	struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 };
-	mm_segment_t old_fs = get_fs();
 
 	/* One high-prio thread per cpu.  We'll do this one. */
-	set_fs(KERNEL_DS);
-	sys_sched_setscheduler(current->pid, SCHED_FIFO,
-				(struct sched_param __user *)&param);
-	set_fs(old_fs);
+	sched_setscheduler(current, SCHED_FIFO, &param);
 
 	atomic_set(&stopmachine_thread_ack, 0);
 	stopmachine_num_threads = 0;
@@ -115,7 +115,6 @@ static int stop_machine(void)
 	/* If some failed, kill them all. */
 	if (ret < 0) {
 		stopmachine_set_state(STOPMACHINE_EXIT);
-		up(&stopmachine_mutex);
 		return ret;
 	}
 
@@ -210,3 +209,4 @@ int stop_machine_run(int (*fn)(void *), void *data, unsigned int cpu)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(stop_machine_run);