Linus Torvalds 9d21874da8 Merge branch 'idr-2018-02-06' of git://git.infradead.org/users/willy/linux-dax
Pull idr updates from Matthew Wilcox:

 - test-suite improvements

 - replace the extended API by improving the normal API

 - performance improvement for IDRs which are 1-based rather than
   0-based

 - add documentation

* 'idr-2018-02-06' of git://git.infradead.org/users/willy/linux-dax:
  idr: Add documentation
  idr: Make 1-based IDRs more efficient
  idr: Warn if old iterators see large IDs
  idr: Rename idr_for_each_entry_ext
  idr: Remove idr_alloc_ext
  cls_u32: Convert to idr_alloc_u32
  cls_u32: Reinstate cyclic allocation
  cls_flower: Convert to idr_alloc_u32
  cls_bpf: Convert to use idr_alloc_u32
  cls_basic: Convert to use idr_alloc_u32
  cls_api: Convert to idr_alloc_u32
  net sched actions: Convert to use idr_alloc_u32
  idr: Add idr_alloc_u32 helper
  idr: Delete idr_find_ext function
  idr: Delete idr_replace_ext function
  idr: Delete idr_remove_ext function
  IDR test suite: Check handling negative end correctly
  idr test suite: Fix ida_test_random()
  radix tree test suite: Remove ARRAY_SIZE
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Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.
Description
Linux kernel stable tree
Readme
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