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Commit b6e5d5b9 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

genirq/affinity: Use default affinity mask for reserved vectors 



The reserved vectors at the beginning and the end of the vector space get
cpu_possible_mask assigned as their affinity mask.

All other non-auto affine interrupts get the default irq affinity mask
assigned. Using cpu_possible_mask breaks that rule.

Treat them like any other interrupt and use irq_default_affinity as target
mask.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Christoph Hellwig <hch@lst.de>
parent bfe13077

kernel/irq/affinity.c

+2 −2
Original line number Diff line number Diff line
@@ -75,7 +75,7 @@ irq_create_affinity_masks(int nvecs, const struct irq_affinity *affd) 


	/* Fill out vectors at the beginning that don't need affinity */

	for (curvec = 0; curvec < affd->pre_vectors; curvec++)

		cpumask_copy(masks + curvec, cpu_possible_mask);

		cpumask_copy(masks + curvec, irq_default_affinity);



	/* Stabilize the cpumasks */

	get_online_cpus();
@@ -130,7 +130,7 @@ irq_create_affinity_masks(int nvecs, const struct irq_affinity *affd) 


	/* Fill out vectors at the end that don't need affinity */

	for (; curvec < nvecs; curvec++)

		cpumask_copy(masks + curvec, cpu_possible_mask);

		cpumask_copy(masks + curvec, irq_default_affinity);

out:

	free_cpumask_var(nmsk);

	return masks;