Jens Axboe 75199aa526 Merge branch 'nvme-5.2' of git://git.infradead.org/nvme into for-5.2/block
Pull NVMe changes from Christoph:

"Below is the first batch of nvme updates for 5.2. This includes the
performance improvements for single segment I/O on PCIe, which introduce
new block helpers, so it might be a good idea to get them in early.

 - various performance optimizations in the PCIe code (Keith and me)
 - new block helpers to support the above (me)
 - nvmet error conversion cleanup (me)
 - nvmet-fc variable sized array cleanup (Gustavo)
 - passthrough ioctl error printk cleanup (Kenneth)
 - small nvmet fixes (Max)
 - endianess conversion cleanup (Max)
 - nvmet-tcp faspath completion optimization (Sagi)"

* 'nvme-5.2' of git://git.infradead.org/nvme: (24 commits)
  nvme: log the error status on Identify Namespace failure
  nvmet: add safety check for subsystem lock during nvmet_ns_changed
  nvmet: never fail double namespace enablement
  nvme-pci: tidy up nvme_map_data
  nvme-pci: optimize mapping single segment requests using SGLs
  nvme-pci: optimize mapping of small single segment requests
  nvme-pci: remove the inline scatterlist optimization
  nvme-pci: split metadata handling from nvme_map_data / nvme_unmap_data
  nvme-pci: do not build a scatterlist to map metadata
  nvme-pci: only call nvme_unmap_data for requests transferring data
  nvme-pci: merge nvme_free_iod into nvme_unmap_data
  nvme-pci: move the call to nvme_cleanup_cmd out of nvme_unmap_data
  nvme-pci: remove nvme_init_iod
  block: add dma_map_bvec helper
  block: add a rq_dma_dir helper
  block: add a rq_integrity_vec helper
  block: add a req_bvec helper
  nvme-pci: remove unused nvme_iod member
  nvme-pci: remove q_dmadev from nvme_queue
  nvme-pci: use a flag for polled queues
  ...
2019-04-05 09:08:51 -06:00
2019-03-07 18:32:03 -08:00
2019-04-05 08:07:57 +02:00
2019-03-29 10:01:37 -07:00
2019-03-31 14:39:29 -07:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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