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[PATCH] i386: Update smp_call_function* comments

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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>
This commit is contained in:
Jeremy Fitzhardinge 2007-05-02 19:27:12 +02:00 committed by Andi Kleen
parent 7946331856
commit d479d2cc08
1 changed files with 15 additions and 10 deletions
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25
arch/i386/kernel/smp.c
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@ -554,8 +554,10 @@ static void __smp_call_function(void (*func) (void *info), void *info,
* @info: An arbitrary pointer to pass to the function.
* @wait: If true, wait (atomically) until function has completed on other CPUs.
*
* Returns 0 on success, else a negative status code. Does not return until
* remote CPUs are nearly ready to execute <<func>> or are or have finished.
* Returns 0 on success, else a negative status code.
*
* If @wait is true, then returns once @func has returned; otherwise
* it returns just before the target cpu calls @func.
*
* You must not call this function with disabled interrupts or from a
* hardware interrupt handler or from a bottom half handler.
@ -617,11 +619,13 @@ int native_smp_call_function_mask(cpumask_t mask,
* smp_call_function(): Run a function on all other CPUs.
* @func: The function to run. This must be fast and non-blocking.
* @info: An arbitrary pointer to pass to the function.
* @nonatomic: currently unused.
* @nonatomic: Unused.
* @wait: If true, wait (atomically) until function has completed on other CPUs.
*
* Returns 0 on success, else a negative status code. Does not return until
* remote CPUs are nearly ready to execute <<func>> or are or have executed.
* Returns 0 on success, else a negative status code.
*
* If @wait is true, then returns once @func has returned; otherwise
* it returns just before the target cpu calls @func.
*
* You must not call this function with disabled interrupts or from a
* hardware interrupt handler or from a bottom half handler.
@ -633,17 +637,18 @@ int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
}
EXPORT_SYMBOL(smp_call_function);
/*
/**
* smp_call_function_single - Run a function on another CPU
* @cpu: The target CPU. Cannot be the calling CPU.
* @func: The function to run. This must be fast and non-blocking.
* @info: An arbitrary pointer to pass to the function.
* @nonatomic: Currently unused.
* @nonatomic: Unused.
* @wait: If true, wait until function has completed on other CPUs.
*
* Retrurns 0 on success, else a negative status code.
* Returns 0 on success, else a negative status code.
*
* Does not return until the remote CPU is nearly ready to execute <func>
* or is or has executed.
* If @wait is true, then returns once @func has returned; otherwise
* it returns just before the target cpu calls @func.
*/
int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
int nonatomic, int wait)