Pull swiotlb-size into release branch

[linux-2.6] / drivers / char / rtc.c

diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index d8f9e94ae475703465300750258fbf984a3101a0..cd4fe8b1709f67593d47939819c9fd6a37e32ce3 100644 (file)
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -1209,6 +1209,7 @@ static int rtc_proc_open(struct inode *inode, struct file *file)
 
 void rtc_get_rtc_time(struct rtc_time *rtc_tm)
 {
+       unsigned long uip_watchdog = jiffies;
        unsigned char ctrl;
 #ifdef CONFIG_MACH_DECSTATION
        unsigned int real_year;
@@ -1224,8 +1225,10 @@ void rtc_get_rtc_time(struct rtc_time *rtc_tm)
         * Once the read clears, read the RTC time (again via ioctl). Easy.
         */
 
-       if (rtc_is_updating() != 0)
-               msleep(20);
+       while (rtc_is_updating() != 0 && jiffies - uip_watchdog < 2*HZ/100) {
+               barrier();
+               cpu_relax();
+       }
 
        /*
         * Only the values that we read from the RTC are set. We leave