Messages in this thread | | | From | Ming Lei <> | Subject | [PATCH 0/4] irq: fix support for allocating sets of IRQs | Date | Fri, 2 Nov 2018 22:59:47 +0800 |
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Hi Jens,
As I mentioned, there are at least two issues in the patch of ' irq: add support for allocating (and affinitizing) sets of IRQs':
1) it is wrong to pass 'mask + usedvec' to irq_build_affinity_masks()
2) we should spread all possible CPUs in 2-stage way on each set of IRQs
The fix isn't trivial, and I introduce two extra patches as preparation, then the implementation can be more clean.
The patchset is against mq-maps branch of block tree, feel free to integrate into the whole patchset of multiple queue maps.
Thanks, Ming
Jens Axboe (1): irq: add support for allocating (and affinitizing) sets of IRQs
Ming Lei (3): Revert "irq: add support for allocating (and affinitizing) sets of IRQs" irq: move 2-stage irq spread into one helper irq: pass first vector to __irq_build_affinity_masks
kernel/irq/affinity.c | 119 +++++++++++++++++++++++++++++++------------------- 1 file changed, 75 insertions(+), 44 deletions(-)
Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Cc: Hannes Reinecke <hare@suse.com> Cc: Ming Lei <ming.lei@redhat.com> Cc: Keith Busch <keith.busch@intel.com> Cc: Sagi Grimberg <sagi@grimberg.me>
-- 2.9.5
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