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From: Christoph Hellwig <hch@lst.de>
To: Thomas Gleixner <tglx@linutronix.de>, Jens Axboe <axboe@kernel.dk>
Cc: Keith Busch <keith.busch@intel.com>,
	linux-nvme@lists.infradead.org, linux-block@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: spread MSI(-X) vectors to all possible CPUs V2
Date: Sat,  3 Jun 2017 16:03:55 +0200
Message-ID: <20170603140403.27379-1-hch@lst.de> (raw)

Hi all,

this series changes our automatic MSI-X vector assignment so that it
takes all present CPUs into account instead of all online ones.  This
allows to better deal with cpu hotplug events, which could happen
frequently due to power management for example.

Changes since V1:
 - rebase to current Linus' tree
 - add irq_lock_sparse calls
 - move memory allocations outside of (raw) spinlocks
 - make the possible cpus per node mask safe vs physical CPU hotplug
 - remove the irq_force_complete_move call
 - factor some common code into helpers
 - identation fixups

             reply index

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-03 14:03 Christoph Hellwig [this message]
2017-06-03 14:03 ` [PATCH 1/8] genirq: allow assigning affinity to present but not online CPUs Christoph Hellwig
2017-06-04 15:14   ` Sagi Grimberg
2017-06-17 23:21   ` Thomas Gleixner
2017-06-03 14:03 ` [PATCH 2/8] genirq: move pending helpers to internal.h Christoph Hellwig
2017-06-04 15:15   ` Sagi Grimberg
2017-06-03 14:03 ` [PATCH 3/8] genirq/affinity: factor out a irq_affinity_set helper Christoph Hellwig
2017-06-04 15:15   ` Sagi Grimberg
2017-06-16 10:23   ` Thomas Gleixner
2017-06-16 11:08   ` Thomas Gleixner
2017-06-16 12:00     ` Thomas Gleixner
2017-06-17 23:14   ` Thomas Gleixner
2017-06-03 14:03 ` [PATCH 4/8] genirq/affinity: assign vectors to all present CPUs Christoph Hellwig
2017-06-04 15:17   ` Sagi Grimberg
2017-06-03 14:04 ` [PATCH 5/8] genirq/affinity: update CPU affinity for CPU hotplug events Christoph Hellwig
2017-06-16 10:26   ` Thomas Gleixner
2017-06-16 10:29   ` Thomas Gleixner
2017-06-03 14:04 ` [PATCH 6/8] blk-mq: include all present CPUs in the default queue mapping Christoph Hellwig
2017-06-04 15:11   ` Sagi Grimberg
2017-06-03 14:04 ` [PATCH 7/8] blk-mq: create hctx for each present CPU Christoph Hellwig
2017-06-04 15:11   ` Sagi Grimberg
2017-06-07  9:10   ` Ming Lei
2017-06-07 19:06     ` Christoph Hellwig
2017-06-08  2:28       ` Ming Lei
2017-06-07 22:04   ` Omar Sandoval
2017-06-08  6:58     ` Christoph Hellwig
2017-06-03 14:04 ` [PATCH 8/8] nvme: allocate queues for all possible CPUs Christoph Hellwig
2017-06-04 15:13   ` Sagi Grimberg
2017-06-16  6:48 ` spread MSI(-X) vectors to all possible CPUs V2 Christoph Hellwig
2017-06-16  7:28   ` Thomas Gleixner
  -- strict thread matches above, loose matches on Subject: below --
2017-05-19  8:57 Christoph Hellwig

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