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cpumask: arch_send_call_function_ipi_mask: core

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Impact: new API to reduce stack usage

We're weaning the core code off handing cpumask's around on-stack.
This introduces arch_send_call_function_ipi_mask().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2008-12-30 09:05:17 +10:30
parent 54b11e6d57
commit ce47d974f7
1 changed files with 7 additions and 1 deletions
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8
kernel/smp.c
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@ -266,6 +266,12 @@ void __smp_call_function_single(int cpu, struct call_single_data *data)
generic_exec_single(cpu, data);
}
/* FIXME: Shim for archs using old arch_send_call_function_ipi API. */
#ifndef arch_send_call_function_ipi_mask
#define arch_send_call_function_ipi_mask(maskp) \
arch_send_call_function_ipi(*(maskp))
#endif
/**
* smp_call_function_many(): Run a function on a set of other CPUs.
* @mask: The set of cpus to run on (only runs on online subset).
@ -343,7 +349,7 @@ void smp_call_function_many(const struct cpumask *mask,
smp_mb();
/* Send a message to all CPUs in the map */
arch_send_call_function_ipi(*to_cpumask(data->cpumask_bits));
arch_send_call_function_ipi_mask(to_cpumask(data->cpumask_bits));
/* optionally wait for the CPUs to complete */
if (wait)