[PATCH] i386: Update smp_call_function* comments
Update documentation for i386 smp_call_function* functions. As reported by Randy Dunlap <rdunlap@xenotime.net> [ I've posted this before but it seems to have been lost along the way. ] Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Randy Dunlap <rdunlap@xenotime.net>
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1 changed files with 15 additions and 10 deletions
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@ -554,8 +554,10 @@ static void __smp_call_function(void (*func) (void *info), void *info,
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* @info: An arbitrary pointer to pass to the function.
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* @wait: If true, wait (atomically) until function has completed on other CPUs.
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*
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* Returns 0 on success, else a negative status code. Does not return until
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* remote CPUs are nearly ready to execute <<func>> or are or have finished.
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* Returns 0 on success, else a negative status code.
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*
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* If @wait is true, then returns once @func has returned; otherwise
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* it returns just before the target cpu calls @func.
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*
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* You must not call this function with disabled interrupts or from a
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* hardware interrupt handler or from a bottom half handler.
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@ -617,11 +619,13 @@ int native_smp_call_function_mask(cpumask_t mask,
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* smp_call_function(): Run a function on all other CPUs.
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* @func: The function to run. This must be fast and non-blocking.
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* @info: An arbitrary pointer to pass to the function.
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* @nonatomic: currently unused.
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* @nonatomic: Unused.
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* @wait: If true, wait (atomically) until function has completed on other CPUs.
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*
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* Returns 0 on success, else a negative status code. Does not return until
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* remote CPUs are nearly ready to execute <<func>> or are or have executed.
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* Returns 0 on success, else a negative status code.
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*
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* If @wait is true, then returns once @func has returned; otherwise
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* it returns just before the target cpu calls @func.
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*
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* You must not call this function with disabled interrupts or from a
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* hardware interrupt handler or from a bottom half handler.
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@ -633,17 +637,18 @@ int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
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}
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EXPORT_SYMBOL(smp_call_function);
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/*
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/**
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* smp_call_function_single - Run a function on another CPU
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* @cpu: The target CPU. Cannot be the calling CPU.
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* @func: The function to run. This must be fast and non-blocking.
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* @info: An arbitrary pointer to pass to the function.
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* @nonatomic: Currently unused.
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* @nonatomic: Unused.
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* @wait: If true, wait until function has completed on other CPUs.
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*
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* Retrurns 0 on success, else a negative status code.
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* Returns 0 on success, else a negative status code.
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*
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* Does not return until the remote CPU is nearly ready to execute <func>
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* or is or has executed.
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* If @wait is true, then returns once @func has returned; otherwise
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* it returns just before the target cpu calls @func.
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*/
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int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
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int nonatomic, int wait)
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