[PATCH v5 00/13] Copy Offload in NVMe Fabrics with P2P PCI Memory · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
[PATCH v5 12/13] nvmet: Introduce helper functions to allocate and free request SGLs · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
Re: [PATCH v5 12/13] nvmet: Introduce helper functions to allocate and free request SGLs · Sagi Grimberg <sagi@grimberg.me> · 2018-08-31
[PATCH v5 03/13] PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
[PATCH v5 11/13] nvme-pci: Add a quirk for a pseudo CMB · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
[PATCH v5 04/13] PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
[PATCH v5 05/13] docs-rst: Add a new directory for PCI documentation · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
[PATCH v5 13/13] nvmet: Optionally use PCI P2P memory · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
Re: [PATCH v5 13/13] nvmet: Optionally use PCI P2P memory · Sagi Grimberg <sagi@grimberg.me> · 2018-08-31
Re: [PATCH v5 13/13] nvmet: Optionally use PCI P2P memory · Logan Gunthorpe <logang@deltatee.com> · 2018-08-31
[PATCH v5 01/13] PCI/P2PDMA: Support peer-to-peer memory · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
Re: [PATCH v5 01/13] PCI/P2PDMA: Support peer-to-peer memory · Christian König <christian.koenig@amd.com> · 2018-08-31
Re: [PATCH v5 01/13] PCI/P2PDMA: Support peer-to-peer memory · Logan Gunthorpe <logang@deltatee.com> · 2018-08-31
Re: [PATCH v5 01/13] PCI/P2PDMA: Support peer-to-peer memory · Christoph Hellwig <hch@lst.de> · 2018-09-01
Re: [PATCH v5 01/13] PCI/P2PDMA: Support peer-to-peer memory · Jonathan Cameron <hidden> · 2018-08-31
Re: [PATCH v5 01/13] PCI/P2PDMA: Support peer-to-peer memory · Logan Gunthorpe <logang@deltatee.com> · 2018-08-31
[PATCH v5 06/13] PCI/P2PDMA: Add P2P DMA driver writer's documentation · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
Re: [PATCH v5 06/13] PCI/P2PDMA: Add P2P DMA driver writer's documentation · Randy Dunlap <rdunlap@infradead.org> · 2018-08-31
Re: [PATCH v5 06/13] PCI/P2PDMA: Add P2P DMA driver writer's documentation · Logan Gunthorpe <logang@deltatee.com> · 2018-08-31
Re: [PATCH v5 06/13] PCI/P2PDMA: Add P2P DMA driver writer's documentation · Christian König <christian.koenig@amd.com> · 2018-08-31
Re: [PATCH v5 06/13] PCI/P2PDMA: Add P2P DMA driver writer's documentation · Logan Gunthorpe <logang@deltatee.com> · 2018-08-31
Re: [PATCH v5 06/13] PCI/P2PDMA: Add P2P DMA driver writer's documentation · Christian König <christian.koenig@amd.com> · 2018-08-31
Re: [PATCH v5 06/13] PCI/P2PDMA: Add P2P DMA driver writer's documentation · Logan Gunthorpe <logang@deltatee.com> · 2018-08-31
[PATCH v5 08/13] IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]() · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
Re: [PATCH v5 08/13] IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]() · Sagi Grimberg <sagi@grimberg.me> · 2018-08-31
[PATCH v5 02/13] PCI/P2PDMA: Add sysfs group to display p2pmem stats · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
[PATCH v5 09/13] nvme-pci: Use PCI p2pmem subsystem to manage the CMB · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
[PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Jens Axboe <axboe@kernel.dk> · 2018-08-30
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Jens Axboe <axboe@kernel.dk> · 2018-08-30
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Christoph Hellwig <hch@lst.de> · 2018-09-01
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Logan Gunthorpe <logang@deltatee.com> · 2018-09-03
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Jens Axboe <axboe@kernel.dk> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Logan Gunthorpe <logang@deltatee.com> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Jens Axboe <axboe@kernel.dk> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Christoph Hellwig <hch@lst.de> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Jens Axboe <axboe@kernel.dk> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Christoph Hellwig <hch@lst.de> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Logan Gunthorpe <logang@deltatee.com> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Jens Axboe <axboe@kernel.dk> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Logan Gunthorpe <logang@deltatee.com> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Jens Axboe <axboe@kernel.dk> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Logan Gunthorpe <logang@deltatee.com> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Jens Axboe <axboe@kernel.dk> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Logan Gunthorpe <logang@deltatee.com> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Christoph Hellwig <hch@lst.de> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Jens Axboe <axboe@kernel.dk> · 2018-09-05
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Christoph Hellwig <hch@lst.de> · 2018-09-10
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Logan Gunthorpe <logang@deltatee.com> · 2018-09-10
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Christoph Hellwig <hch@lst.de> · 2018-09-11
Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests · Logan Gunthorpe <logang@deltatee.com> · 2018-09-05
[PATCH v5 10/13] nvme-pci: Add support for P2P memory in requests · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30
Re: [PATCH v5 10/13] nvme-pci: Add support for P2P memory in requests · Jason Gunthorpe <hidden> · 2018-09-04
Re: [PATCH v5 10/13] nvme-pci: Add support for P2P memory in requests · Logan Gunthorpe <logang@deltatee.com> · 2018-09-04
Re: [PATCH v5 10/13] nvme-pci: Add support for P2P memory in requests · Christoph Hellwig <hch@lst.de> · 2018-09-05
Re: [PATCH v5 00/13] Copy Offload in NVMe Fabrics with P2P PCI Memory · Jerome Glisse <hidden> · 2018-08-30
Re: [PATCH v5 00/13] Copy Offload in NVMe Fabrics with P2P PCI Memory · Logan Gunthorpe <logang@deltatee.com> · 2018-08-30

Re: [PATCH v5 07/13] block: Add PCI P2P flag for request queue and check support for requests

From: Christoph Hellwig <hch@lst.de>
Date: 2018-09-11 07:06:36
Also in: linux-nvme, linux-pci, linux-rdma, lkml, nvdimm

On Mon, Sep 10, 2018 at 12:11:01PM -0600, Logan Gunthorpe wrote:

quoted

I just saw you added that "helper" in your tree.  Please don't, it is
a negative value add as it doesn't help anything with the checking.

Alright, so what's the consensus then? Just have a check in
nvmet_bdev_execute_rw() to add REQ_NOMERGE when appropriate?

Yes.

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