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@xxxxxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: Hannes Reinecke <hare@xxxxxxxx>
Cc: Ming Lei <ming.lei@xxxxxxxxxx>
Cc: Keith Busch <keith.busch@xxxxxxxxx>
Cc: Sagi Grimberg <sagi@xxxxxxxxxxx>
--
2.9.5
