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Subject[PATCH 0/2] blk-mq: support physical CPU hotplug

This two patches support physical CPU hotplug, so that we can make blk-mq
scale well when new physical CPU is added or removed, and this use case
is normal for VM world.

Also this patchset fixes the following warning reported by Christian

Christoph Hellwig (2):
genirq/affinity: assign vectors to all possible CPUs
blk-mq: simplify queue mapping & schedule with each possisble CPU

block/blk-mq.c | 19 ++++++++-----------
kernel/irq/affinity.c | 30 +++++++++++++++---------------
2 files changed, 23 insertions(+), 26 deletions(-)


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