[PATCH] provide hrtimer exports for module use [Was: Exports for hrtimer APIs]

[Stone, Joshua I]

Andrew Morton wrote:
> "Stone, Joshua I" <joshua.i.stone@xxxxxxxxx> wrote:
>> I have noticed that the hrtimer APIs in 2.6.16 RCs are not exported,
>> and therefore modules are unable to use hrtimers.  I have not seen
>> any discussion on this point, so I presume that this is either an
>> oversight, or there has not been any case presented for exporting
>> hrtimers. 
>> 
>> I would like to add hrtimer support to SystemTap, which by design
>> requires the use of dynamically loaded kernel modules.  Can the
>> appropriate exports for hrtimers please be added?
> 
> Please send a patch, so we can see what's needed.
> 
> EXPORT_SYMBOL_GPL would be preferred.

This patch adds the exports needed for modules to use the
hrtimer APIs.

Signed-off-by: Josh Stone <joshua.i.stone@xxxxxxxxx>

--- linux-2.6.16-rc6/kernel/hrtimer.c	2006-03-14 10:44:13.000000000
-0800
+++ linux-2.6.16-rc6-hrtexp/kernel/hrtimer.c	2006-03-14
11:13:48.000000000 -0800
@@ -238,6 +238,7 @@ ktime_t ktime_add_ns(const ktime_t kt, u
 
 	return ktime_add(kt, tmp);
 }
+EXPORT_SYMBOL_GPL(ktime_add_ns);
 
 #else /* CONFIG_KTIME_SCALAR */
 
@@ -319,6 +320,7 @@ hrtimer_forward(struct hrtimer *timer, k
 
 	return orun;
 }
+EXPORT_SYMBOL_GPL(hrtimer_forward);
 
 /*
  * enqueue_hrtimer - internal function to (re)start a timer
@@ -439,6 +441,7 @@ hrtimer_start(struct hrtimer *timer, kti
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(hrtimer_start);
 
 /**
  * hrtimer_try_to_cancel - try to deactivate a timer
@@ -467,6 +470,7 @@ int hrtimer_try_to_cancel(struct hrtimer
 	return ret;
 
 }
+EXPORT_SYMBOL_GPL(hrtimer_try_to_cancel);
 
 /**
  * hrtimer_cancel - cancel a timer and wait for the handler to finish.
@@ -486,6 +490,7 @@ int hrtimer_cancel(struct hrtimer *timer
 			return ret;
 	}
 }
+EXPORT_SYMBOL_GPL(hrtimer_cancel);
 
 /**
  * hrtimer_get_remaining - get remaining time for the timer
@@ -504,6 +509,7 @@ ktime_t hrtimer_get_remaining(const stru
 
 	return rem;
 }
+EXPORT_SYMBOL_GPL(hrtimer_get_remaining);
 
 #ifdef CONFIG_NO_IDLE_HZ
 /**
@@ -538,6 +544,7 @@ ktime_t hrtimer_get_next_event(void)
 		mindelta.tv64 = 0;
 	return mindelta;
 }
+EXPORT_SYMBOL_GPL(hrtimer_get_next_event);
 #endif
 
 /**
@@ -561,6 +568,7 @@ void hrtimer_init(struct hrtimer *timer,
 
 	timer->base = &bases[clock_id];
 }
+EXPORT_SYMBOL_GPL(hrtimer_init);
 
 /**
  * hrtimer_get_res - get the timer resolution for a clock
@@ -580,6 +588,7 @@ int hrtimer_get_res(const clockid_t whic
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(hrtimer_get_res);
 
 /*
  * Expire the per base hrtimer-queue:
@@ -761,6 +770,7 @@ long hrtimer_nanosleep(struct timespec *
 
 	return -ERESTART_RESTARTBLOCK;
 }
+EXPORT_SYMBOL_GPL(hrtimer_nanosleep);
 
 asmlinkage long
 sys_nanosleep(struct timespec __user *rqtp, struct timespec __user
*rmtp)
-
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