Re: [PATCH 002/003] Switch getnstimestamp() calls to ktime_get_ts()

[Matt Helsley <matthltc@us.ibm.com>]

Use ktime_get_ts() to take the timestamp instead of getnstimestamp(). This
patch prepares to remove getnstimestamp() by switching its only user to
a different function with almost exactly the same code.

Signed-off-by: Matt Helsley <matthltc@us.ibm.com>

--

Index: linux-2.6.15-rc5-mm2/drivers/connector/cn_proc.c
===================================================================
--- linux-2.6.15-rc5-mm2.orig/drivers/connector/cn_proc.c
+++ linux-2.6.15-rc5-mm2/drivers/connector/cn_proc.c
@@ -22,10 +22,11 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
+#include <linux/ktime.h>
 #include <linux/init.h>
 #include <asm/atomic.h>
 
 #include <linux/cn_proc.h>
 
@@ -54,11 +55,11 @@ void proc_fork_connector(struct task_str
 		return;
 
 	msg = (struct cn_msg*)buffer;
 	ev = (struct proc_event*)msg->data;
 	get_seq(&msg->seq, &ev->cpu);
-	getnstimestamp(&ev->timestamp);
+	ktime_get_ts(&ev->timestamp); /* get high res monotonic timestamp */
 	ev->what = PROC_EVENT_FORK;
 	ev->event_data.fork.parent_pid = task->real_parent->pid;
 	ev->event_data.fork.parent_tgid = task->real_parent->tgid;
 	ev->event_data.fork.child_pid = task->pid;
 	ev->event_data.fork.child_tgid = task->tgid;
@@ -80,11 +81,11 @@ void proc_exec_connector(struct task_str
 		return;
 
 	msg = (struct cn_msg*)buffer;
 	ev = (struct proc_event*)msg->data;
 	get_seq(&msg->seq, &ev->cpu);
-	getnstimestamp(&ev->timestamp);
+	ktime_get_ts(&ev->timestamp);
 	ev->what = PROC_EVENT_EXEC;
 	ev->event_data.exec.process_pid = task->pid;
 	ev->event_data.exec.process_tgid = task->tgid;
 
 	memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
@@ -114,11 +115,11 @@ void proc_id_connector(struct task_struc
 	   	ev->event_data.id.r.rgid = task->gid;
 	   	ev->event_data.id.e.egid = task->egid;
 	} else
 	     	return;
 	get_seq(&msg->seq, &ev->cpu);
-	getnstimestamp(&ev->timestamp);
+	ktime_get_ts(&ev->timestamp);
 
 	memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
 	msg->ack = 0; /* not used */
 	msg->len = sizeof(*ev);
 	cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
@@ -134,11 +135,11 @@ void proc_exit_connector(struct task_str
 		return;
 
 	msg = (struct cn_msg*)buffer;
 	ev = (struct proc_event*)msg->data;
 	get_seq(&msg->seq, &ev->cpu);
-	getnstimestamp(&ev->timestamp);
+	ktime_get_ts(&ev->timestamp);
 	ev->what = PROC_EVENT_EXIT;
 	ev->event_data.exit.process_pid = task->pid;
 	ev->event_data.exit.process_tgid = task->tgid;
 	ev->event_data.exit.exit_code = task->exit_code;
 	ev->event_data.exit.exit_signal = task->exit_signal;
@@ -167,11 +168,11 @@ static void cn_proc_ack(int err, int rcv
 		return;
 
 	msg = (struct cn_msg*)buffer;
 	ev = (struct proc_event*)msg->data;
 	msg->seq = rcvd_seq;
-	getnstimestamp(&ev->timestamp);
+	ktime_get_ts(&ev->timestamp);
 	ev->cpu = -1;
 	ev->what = PROC_EVENT_NONE;
 	ev->event_data.ack.err = err;
 	memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
 	msg->ack = rcvd_ack + 1;