4 files changed, 10 insertions, 48 deletions

diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 61e70d35d808..d9554199afa7 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -103,7 +103,7 @@ spufs_setattr(struct dentry *dentry, struct iattr *attr)
 
 static int
 spufs_new_file(struct super_block *sb, struct dentry *dentry,
-                struct file_operations *fops, int mode,
+                const struct file_operations *fops, int mode,
                 struct spu_context *ctx)
 {
         static struct inode_operations spufs_file_iops = {
diff --git a/arch/powerpc/platforms/chrp/time.c b/arch/powerpc/platforms/chrp/time.c
index 12c6f689b1aa..7d7889026936 100644
--- a/arch/powerpc/platforms/chrp/time.c
+++ b/arch/powerpc/platforms/chrp/time.c
@@ -120,33 +120,15 @@ int chrp_set_rtc_time(struct rtc_time *tmarg)
 void chrp_get_rtc_time(struct rtc_time *tm)
 {
         unsigned int year, mon, day, hour, min, sec;
-        int uip, i;
 
-        /* The Linux interpretation of the CMOS clock register contents:
-         * When the Update-In-Progress (UIP) flag goes from 1 to 0, the
-         * RTC registers show the second which has precisely just started.
-         * Let's hope other operating systems interpret the RTC the same way.
-         */
-
-        /* Since the UIP flag is set for about 2.2 ms and the clock
-         * is typically written with a precision of 1 jiffy, trying
-         * to obtain a precision better than a few milliseconds is
-         * an illusion. Only consistency is interesting, this also
-         * allows to use the routine for /dev/rtc without a potential
-         * 1 second kernel busy loop triggered by any reader of /dev/rtc.
-         */
-
-        for ( i = 0; i<1000000; i++) {
-                uip = chrp_cmos_clock_read(RTC_FREQ_SELECT);
+        do {
                 sec = chrp_cmos_clock_read(RTC_SECONDS);
                 min = chrp_cmos_clock_read(RTC_MINUTES);
                 hour = chrp_cmos_clock_read(RTC_HOURS);
                 day = chrp_cmos_clock_read(RTC_DAY_OF_MONTH);
                 mon = chrp_cmos_clock_read(RTC_MONTH);
                 year = chrp_cmos_clock_read(RTC_YEAR);
-                uip |= chrp_cmos_clock_read(RTC_FREQ_SELECT);
-                if ((uip & RTC_UIP)==0) break;
-        }
+        } while (sec != chrp_cmos_clock_read(RTC_SECONDS));
 
         if (!(chrp_cmos_clock_read(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
                 BCD_TO_BIN(sec);
diff --git a/arch/powerpc/platforms/maple/time.c b/arch/powerpc/platforms/maple/time.c
index 5e6981d17379..b9a2b3d4bf33 100644
--- a/arch/powerpc/platforms/maple/time.c
+++ b/arch/powerpc/platforms/maple/time.c
@@ -60,34 +60,14 @@ static void maple_clock_write(unsigned long val, int addr)
 
 void maple_get_rtc_time(struct rtc_time *tm)
 {
-        int uip, i;
-
-        /* The Linux interpretation of the CMOS clock register contents:
-         * When the Update-In-Progress (UIP) flag goes from 1 to 0, the
-         * RTC registers show the second which has precisely just started.
-         * Let's hope other operating systems interpret the RTC the same way.
-         */
-
-        /* Since the UIP flag is set for about 2.2 ms and the clock
-         * is typically written with a precision of 1 jiffy, trying
-         * to obtain a precision better than a few milliseconds is
-         * an illusion. Only consistency is interesting, this also
-         * allows to use the routine for /dev/rtc without a potential
-         * 1 second kernel busy loop triggered by any reader of /dev/rtc.
-         */
-
-        for (i = 0; i<1000000; i++) {
-                uip = maple_clock_read(RTC_FREQ_SELECT);
+        do {
                 tm->tm_sec = maple_clock_read(RTC_SECONDS);
                 tm->tm_min = maple_clock_read(RTC_MINUTES);
                 tm->tm_hour = maple_clock_read(RTC_HOURS);
                 tm->tm_mday = maple_clock_read(RTC_DAY_OF_MONTH);
                 tm->tm_mon = maple_clock_read(RTC_MONTH);
                 tm->tm_year = maple_clock_read(RTC_YEAR);
-                uip |= maple_clock_read(RTC_FREQ_SELECT);
-                if ((uip & RTC_UIP)==0)
-                        break;
-        }
+        } while (tm->tm_sec != maple_clock_read(RTC_SECONDS));
 
         if (!(maple_clock_read(RTC_CONTROL) & RTC_DM_BINARY)
             || RTC_ALWAYS_BCD) {
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 9a4b592e40bc..1773103354be 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -95,16 +95,16 @@ static struct device_node *derive_parent(const char *path)
         return parent;
 }
 
-static struct notifier_block *pSeries_reconfig_chain;
+static BLOCKING_NOTIFIER_HEAD(pSeries_reconfig_chain);
 
 int pSeries_reconfig_notifier_register(struct notifier_block *nb)
 {
-        return notifier_chain_register(&pSeries_reconfig_chain, nb);
+        return blocking_notifier_chain_register(&pSeries_reconfig_chain, nb);
 }
 
 void pSeries_reconfig_notifier_unregister(struct notifier_block *nb)
 {
-        notifier_chain_unregister(&pSeries_reconfig_chain, nb);
+        blocking_notifier_chain_unregister(&pSeries_reconfig_chain, nb);
 }
 
 static int pSeries_reconfig_add_node(const char *path, struct property *proplist)
@@ -132,7 +132,7 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist
                 goto out_err;
         }
 
-        err = notifier_call_chain(&pSeries_reconfig_chain,
+        err = blocking_notifier_call_chain(&pSeries_reconfig_chain,
                                   PSERIES_RECONFIG_ADD, np);
         if (err == NOTIFY_BAD) {
                 printk(KERN_ERR "Failed to add device node %s\n", path);
@@ -172,7 +172,7 @@ static int pSeries_reconfig_remove_node(struct device_node *np)
 
         remove_node_proc_entries(np);
 
-        notifier_call_chain(&pSeries_reconfig_chain,
+        blocking_notifier_call_chain(&pSeries_reconfig_chain,
                             PSERIES_RECONFIG_REMOVE, np);
         of_detach_node(np);