Andrew Morton wrote:
> "Stone, Joshua I" <[email protected]> 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 <[email protected]>
--- 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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