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Linus Torvalds e913a8cdc2 Fixes around VM_FPNMAP and follow_pfn
- replace mm/frame_vector.c by get_user_pages in misc/habana and
   drm/exynos drivers, then move that into media as it's sole user
 - close race in generic_access_phys
 - s390 pci ioctl fix of this series landed in 5.11 already
 - properly revoke iomem mappings (/dev/mem, pci files)
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Merge tag 'topic/iomem-mmap-vs-gup-2021-02-22' of git://anongit.freedesktop.org/drm/drm

Pull follow_pfn() updates from Daniel Vetter:
 "Fixes around VM_FPNMAP and follow_pfn:

   - replace mm/frame_vector.c by get_user_pages in misc/habana and
     drm/exynos drivers, then move that into media as it's sole user

   - close race in generic_access_phys

   - s390 pci ioctl fix of this series landed in 5.11 already

   - properly revoke iomem mappings (/dev/mem, pci files)"

* tag 'topic/iomem-mmap-vs-gup-2021-02-22' of git://anongit.freedesktop.org/drm/drm:
  PCI: Revoke mappings like devmem
  PCI: Also set up legacy files only after sysfs init
  sysfs: Support zapping of binary attr mmaps
  resource: Move devmem revoke code to resource framework
  /dev/mem: Only set filp->f_mapping
  PCI: Obey iomem restrictions for procfs mmap
  mm: Close race in generic_access_phys
  media: videobuf2: Move frame_vector into media subsystem
  mm/frame-vector: Use FOLL_LONGTERM
  misc/habana: Use FOLL_LONGTERM for userptr
  misc/habana: Stop using frame_vector helpers
  drm/exynos: Use FOLL_LONGTERM for g2d cmdlists
  drm/exynos: Stop using frame_vector helpers
2021-02-22 17:45:02 -08:00
Documentation Tracing updates for 5.12 2021-02-22 14:07:15 -08:00
LICENSES LICENSES: Add the CC-BY-4.0 license 2020-12-08 10:33:27 -07:00
arch powerpc updates for 5.12 2021-02-22 14:34:00 -08:00
block for-5.12/block-ipi-2021-02-21 2021-02-22 10:53:05 -08:00
certs .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-02-21 17:23:56 -08:00
drivers Fixes around VM_FPNMAP and follow_pfn 2021-02-22 17:45:02 -08:00
fs Fixes around VM_FPNMAP and follow_pfn 2021-02-22 17:45:02 -08:00
include Fixes around VM_FPNMAP and follow_pfn 2021-02-22 17:45:02 -08:00
init kconfig for kcmp syscall 2021-02-22 17:15:30 -08:00
ipc Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
kernel Fixes around VM_FPNMAP and follow_pfn 2021-02-22 17:45:02 -08:00
lib \n 2021-02-22 13:25:37 -08:00
mm Fixes around VM_FPNMAP and follow_pfn 2021-02-22 17:45:02 -08:00
net Optimization: 2021-02-22 13:29:55 -08:00
samples It has been a relatively quiet cycle in docsland. 2021-02-22 10:57:46 -08:00
scripts It has been a relatively quiet cycle in docsland. 2021-02-22 10:57:46 -08:00
security Merge branch 'userns-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-02-22 17:13:33 -08:00
sound ARM updates for 5.12-rc1: 2021-02-22 14:27:07 -08:00
tools kconfig for kcmp syscall 2021-02-22 17:15:30 -08:00
usr arch: ia64: Remove rest of perfmon support 2021-01-22 12:12:20 +05:30
virt KVM/arm64 fixes for 5.11, take #2 2021-02-12 14:07:39 +00:00
.clang-format clang-format: Update with the latest for_each macro list 2021-01-29 15:00:23 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore kbuild: Add support to build overlays (%.dtbo) 2021-02-04 09:00:04 -06:00
.mailmap Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-02-21 17:23:56 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: dccp: move Gerrit Renker to CREDITS 2021-01-14 10:53:49 -08:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS IOMMU Updates for Linux v5.12 2021-02-22 10:31:29 -08:00
Makefile Devicetree updates for v5.12: 2021-02-22 10:05:12 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README

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.