summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorjohn stultz <johnstul@us.ibm.com>2007-07-24 17:47:43 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-25 10:09:20 -0700
commit2c6b47de17c75d553de3e2fb426d8298d2074585 (patch)
treec8edc3d727d85cb3e1c043583c350a04a133e1a3 /drivers
parent0de085bb474f64e4fdb2f1ff3268590792648c7b (diff)
Cleanup non-arch xtime uses, use get_seconds() or current_kernel_time().
This avoids use of the kernel-internal "xtime" variable directly outside of the actual time-related functions. Instead, use the helper functions that we already have available to us. This doesn't actually change any behaviour, but this will allow us to fix the fact that "xtime" isn't updated very often with CONFIG_NO_HZ (because much of the realtime information is maintained as separate offsets to 'xtime'), which has caused interfaces that use xtime directly to get a time that is out of sync with the real-time clock by up to a third of a second or so. Signed-off-by: John Stultz <johnstul@us.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/rtc/class.c5
-rw-r--r--drivers/s390/net/ctcmain.c6
-rw-r--r--drivers/s390/net/netiucv.c4
3 files changed, 8 insertions, 7 deletions
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index 8b3cd31d6a61..10ab3b71ffc6 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -46,6 +46,7 @@ static int rtc_suspend(struct device *dev, pm_message_t mesg)
{
struct rtc_device *rtc = to_rtc_device(dev);
struct rtc_time tm;
+ struct timespec ts = current_kernel_time();
if (strncmp(rtc->dev.bus_id,
CONFIG_RTC_HCTOSYS_DEVICE,
@@ -57,8 +58,8 @@ static int rtc_suspend(struct device *dev, pm_message_t mesg)
/* RTC precision is 1 second; adjust delta for avg 1/2 sec err */
set_normalized_timespec(&delta,
- xtime.tv_sec - oldtime,
- xtime.tv_nsec - (NSEC_PER_SEC >> 1));
+ ts.tv_sec - oldtime,
+ ts.tv_nsec - (NSEC_PER_SEC >> 1));
return 0;
}
diff --git a/drivers/s390/net/ctcmain.c b/drivers/s390/net/ctcmain.c
index b20fd0681733..92e8a37b5022 100644
--- a/drivers/s390/net/ctcmain.c
+++ b/drivers/s390/net/ctcmain.c
@@ -674,7 +674,7 @@ ch_action_txdone(fsm_instance * fi, int event, void *arg)
int first = 1;
int i;
unsigned long duration;
- struct timespec done_stamp = xtime;
+ struct timespec done_stamp = current_kernel_time();
DBF_TEXT(trace, 4, __FUNCTION__);
@@ -730,7 +730,7 @@ ch_action_txdone(fsm_instance * fi, int event, void *arg)
spin_unlock(&ch->collect_lock);
ch->ccw[1].count = ch->trans_skb->len;
fsm_addtimer(&ch->timer, CTC_TIMEOUT_5SEC, CH_EVENT_TIMER, ch);
- ch->prof.send_stamp = xtime;
+ ch->prof.send_stamp = current_kernel_time();
rc = ccw_device_start(ch->cdev, &ch->ccw[0],
(unsigned long) ch, 0xff, 0);
ch->prof.doios_multi++;
@@ -2281,7 +2281,7 @@ transmit_skb(struct channel *ch, struct sk_buff *skb)
fsm_newstate(ch->fsm, CH_STATE_TX);
fsm_addtimer(&ch->timer, CTC_TIMEOUT_5SEC, CH_EVENT_TIMER, ch);
spin_lock_irqsave(get_ccwdev_lock(ch->cdev), saveflags);
- ch->prof.send_stamp = xtime;
+ ch->prof.send_stamp = current_kernel_time();
rc = ccw_device_start(ch->cdev, &ch->ccw[ccw_idx],
(unsigned long) ch, 0xff, 0);
spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags);
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index 3d28e1a5bf79..268889474339 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -753,7 +753,7 @@ static void conn_action_txdone(fsm_instance *fi, int event, void *arg)
header.next = 0;
memcpy(skb_put(conn->tx_buff, NETIUCV_HDRLEN), &header, NETIUCV_HDRLEN);
- conn->prof.send_stamp = xtime;
+ conn->prof.send_stamp = current_kernel_time();
txmsg.class = 0;
txmsg.tag = 0;
rc = iucv_message_send(conn->path, &txmsg, 0, 0,
@@ -1185,7 +1185,7 @@ static int netiucv_transmit_skb(struct iucv_connection *conn,
memcpy(skb_put(nskb, NETIUCV_HDRLEN), &header, NETIUCV_HDRLEN);
fsm_newstate(conn->fsm, CONN_STATE_TX);
- conn->prof.send_stamp = xtime;
+ conn->prof.send_stamp = current_kernel_time();
msg.tag = 1;
msg.class = 0;