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Mike Rapoport 3f08a302f5 mm: remove CONFIG_HAVE_MEMBLOCK_NODE_MAP option 
CONFIG_HAVE_MEMBLOCK_NODE_MAP is used to differentiate initialization of
nodes and zones structures between the systems that have region to node
mapping in memblock and those that don't.

Currently all the NUMA architectures enable this option and for the
non-NUMA systems we can presume that all the memory belongs to node 0 and
therefore the compile time configuration option is not required.

The remaining few architectures that use DISCONTIGMEM without NUMA are
easily updated to use memblock_add_node() instead of memblock_add() and
thus have proper correspondence of memblock regions to NUMA nodes.

Still, free_area_init_node() must have a backward compatible version
because its semantics with and without CONFIG_HAVE_MEMBLOCK_NODE_MAP is
different.  Once all the architectures will use the new semantics, the
entire compatibility layer can be dropped.

To avoid addition of extra run time memory to store node id for
architectures that keep memblock but have only a single node, the node id
field of the memblock_region is guarded by CONFIG_NEED_MULTIPLE_NODES and
the corresponding accessors presume that in those cases it is always 0.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Hoan Tran <hoan@os.amperecomputing.com>	[arm64]
Acked-by: Catalin Marinas <catalin.marinas@arm.com>	[arm64]
Cc: Baoquan He <bhe@redhat.com>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200412194859.12663-4-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-03 20:09:43 -07:00
..
ABI
Merge tag 'acpi-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2020-06-02 13:25:52 -07:00
accounting
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admin-guide
Merge tag 'pm-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2020-06-02 13:17:23 -07:00
arm
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arm64
Merge tag 'docs-5.8' of git://git.lwn.net/linux
2020-06-01 15:45:27 -07:00
block
Merge tag 'for-5.8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
2020-06-02 19:59:25 -07:00
bpf
bpf: lsm: Add Documentation
2020-03-30 01:35:12 +02:00
cdrom
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core-api
Merge branch 'akpm' (patches from Andrew)
2020-06-02 12:21:36 -07:00
cpu-freq
docs: cpu-freq: convert cpufreq-stats.txt to ReST
2020-03-06 00:01:02 +01:00
crypto
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dev-tools
Merge tag 'linux-kselftest-kunit-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
2020-04-01 16:11:40 -07:00
devicetree
Merge tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drm
2020-06-02 15:04:15 -07:00
doc-guide
docs: fix broken references for ReST files that moved around
2020-04-20 15:45:03 -06:00
driver-api
Merge tag 'pm-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2020-06-02 13:17:23 -07:00
fault-injection
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fb
efi/gop: Add an option to list out the available GOP modes
2020-05-20 19:09:20 +02:00
features
mm: remove CONFIG_HAVE_MEMBLOCK_NODE_MAP option
2020-06-03 20:09:43 -07:00
filesystems
Merge tag 'vfs-5.8-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2020-06-02 19:45:12 -07:00
firmware_class
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firmware-guide
Documentation: firmware-guide: ACPI: fix table alignment in namespace.rst
2020-04-08 14:27:48 +02:00
fpga
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gpu
Merge tag 'drm-intel-next-2020-05-15' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
2020-05-20 13:36:45 +10:00
hid
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hwmon
hwmon: Add Baikal-T1 PVT sensor driver
2020-05-28 07:59:45 -07:00
i2c
docs: i2c: rename i2c.svg to i2c_bus.svg
2020-04-20 15:45:41 -06:00
ia64
docs: add IRQ documentation at the core-api book
2020-05-15 12:00:56 -06:00
ide
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iio
docs: filesystems: convert configfs.txt to ReST
2020-05-05 09:23:25 -06:00
infiniband
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input
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isdn
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kbuild
Documentation: kbuild: fix the section title format
2020-04-23 10:53:19 +09:00
kernel-hacking
docs: locking: Drop :c:func: throughout
2020-03-20 17:16:24 -06:00
leds
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livepatch
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locking
Merge tag 'docs-5.8' of git://git.lwn.net/linux
2020-06-01 15:45:27 -07:00
m68k
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maintainer
Documentation: fixes to the maintainer-entry-profile template
2020-06-01 09:36:07 -06:00
media
Merge tag 'media/v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2020-03-30 13:42:05 -07:00
mhi
docs: Add documentation for MHI bus
2020-03-19 07:41:04 +01:00
mips
docs: mips: remove no longer needed au1xxx_ide.rst documentation
2020-03-24 15:53:48 +01:00
misc-devices
doc: misc-device: add uacce to toctree(index)
2020-05-05 09:41:59 -06:00
netlabel
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networking
Merge tag 'docs-5.8' of git://git.lwn.net/linux
2020-06-01 15:45:27 -07:00
nios2
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nvdimm
nvdimm: fixes to maintainter-entry-profile
2020-05-25 10:19:19 -06:00
openrisc
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parisc
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PCI
docs: pci: boot-interrupts.rst: improve html output
2020-04-20 15:45:23 -06:00
pcmcia
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power
Merge tag 'pm-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2020-06-02 13:17:23 -07:00
powerpc
docs: powerpc: cxl.rst: mark two section titles as such
2020-04-20 15:45:25 -06:00
process
Merge tag 'docs-5.8' of git://git.lwn.net/linux
2020-06-01 15:45:27 -07:00
RCU
rcu: Make rcu_read_unlock_special() safe for rq/pi locks
2020-04-27 11:03:50 -07:00
riscv
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s390
docs: s390: Fix wrong label Guest2 instead of Guest3
2020-05-05 09:45:28 -06:00
scheduler
Documentation: scheduler: fix outdated information on sched groups
2020-04-21 13:38:27 -06:00
scsi
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2020-04-02 17:03:53 -07:00
security
Merge tag 'docs-5.8' of git://git.lwn.net/linux
2020-06-01 15:45:27 -07:00
sh
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sound
ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups
2020-03-31 10:54:06 +02:00
sparc
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sphinx
docs: update recommended Sphinx version to 2.4.4
2020-04-20 15:35:58 -06:00
sphinx-static
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spi
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target
docs: prevent warnings due to autosectionlabel
2020-03-20 17:01:29 -06:00
timers
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trace
Merge tag 'docs-5.8' of git://git.lwn.net/linux
2020-06-01 15:45:27 -07:00
translations
docs: add IRQ documentation at the core-api book
2020-05-15 12:00:56 -06:00
usb
Merge tag 'docs-5.8' of git://git.lwn.net/linux
2020-06-01 15:45:27 -07:00
userspace-api
docs: ioctl-number.rst: add habanalabs driver IOCTL
2020-04-20 17:01:53 -06:00
virt
Merge tag 'docs-5.8' of git://git.lwn.net/linux
2020-06-01 15:45:27 -07:00
vm
Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
2020-06-02 14:05:27 -07:00
w1
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watchdog
watchdog: update email address in conversion doc
2020-05-05 09:39:53 -06:00
x86
Merge tag 'docs-5.8' of git://git.lwn.net/linux
2020-06-01 15:45:27 -07:00
xtensa
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.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
asm-annotations.rst
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atomic_bitops.txt
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atomic_t.txt
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bus-virt-phys-mapping.txt
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Changes
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CodingStyle
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conf.py
docs: LaTeX/PDF: drop list of documents
2020-04-20 15:35:58 -06:00
COPYING-logo
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crc32.txt
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docutils.conf
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dontdiff
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index.rst
Merge tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2020-04-03 13:22:40 -07:00
Kconfig
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kprobes.txt
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logo.gif
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lzo.txt
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mailbox.txt
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Makefile
docs: Makefile: place final pdf docs on a separate dir
2020-04-20 15:45:41 -06:00
memory-barriers.txt
docs: fix broken references to text files
2020-04-20 15:35:59 -06:00
nommu-mmap.txt
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remoteproc.txt
remoteproc: Add elf64 support in elf loader
2020-03-25 22:29:40 -07:00
rpmsg.txt
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speculation.txt
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static-keys.txt
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SubmittingPatches
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tee.txt
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this_cpu_ops.txt
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xz.txt
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