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Oscar Salvador e3a9d9fcc3 mm,memory_hotplug: add kernel boot option to enable memmap_on_memory 
Self stored memmap leads to a sparse memory situation which is
unsuitable for workloads that requires large contiguous memory chunks,
so make this an opt-in which needs to be explicitly enabled.

To control this, let memory_hotplug have its own memory space, as
suggested by David, so we can add memory_hotplug.memmap_on_memory
parameter.

Link: https://lkml.kernel.org/r/20210421102701.25051-7-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-05-05 11:27:27 -07:00
..
ABI mm: cma: support sysfs 2021-05-05 11:27:24 -07:00
accounting Documentation: Replace lkml.org links with lore 2021-01-11 12:47:38 -07:00
admin-guide mm,memory_hotplug: add kernel boot option to enable memmap_on_memory 2021-05-05 11:27:27 -07:00
arm It's been a relatively busy cycle in docsland, though more than usually 2021-04-26 13:22:43 -07:00
arm64 arm64 updates for 5.13: 2021-04-26 10:25:03 -07:00
block block/bfq: update comments and default value in docs for fifo_expire 2021-03-02 11:25:38 -07:00
bpf bpf: Document the pahole release info related to libbpf in bpf_devel_QA.rst 2021-04-23 17:11:58 -07:00
cdrom
core-api mm/mmzone.h: fix existing kernel-doc comments and link them to core-api 2021-04-30 11:20:43 -07:00
cpu-freq
crypto crypto: remove cipher routines from public crypto API 2021-01-03 08:41:35 +11:00
dev-tools kasan: docs: update tests section 2021-04-30 11:20:42 -07:00
devicetree Kbuild updates for v5.13 2021-04-29 14:24:39 -07:00
doc-guide docs: Document cross-referencing using relative path 2021-02-04 16:24:12 -07:00
driver-api VFIO updates for v5.13-rc1 2021-04-28 17:19:47 -07:00
fault-injection
fb Documentation: Add leading slash to some paths 2021-03-31 13:49:19 -06:00
features Documentation/features: mark BATCHED_UNMAP_TLB_FLUSH doesn't apply to ARM64 2021-03-15 13:17:40 -06:00
filesystems for-5.13/drivers-2021-04-27 2021-04-28 14:39:37 -07:00
firmware-guide Merge branches 'acpi-pci' and 'acpi-processor' 2021-04-26 17:03:05 +02:00
firmware_class
fpga Documentation: fpga: dfl: Add description for DFL UIO support 2021-03-28 14:58:18 +02:00
gpu drm-misc-next for 5.13: 2021-04-07 17:32:12 +10:00
hid Documentation: Add leading slash to some paths 2021-03-31 13:49:19 -06:00
hwmon hwmon: Remove amd_energy driver 2021-04-20 06:52:08 -07:00
i2c i2c: testunit: add support for block process calls 2021-02-12 11:11:04 +01:00
ia64
ide
iio iio: hrtimer: Allow sub Hz granularity 2021-03-25 19:13:49 +00:00
infiniband
input input: Documentation: corrections for uinput.rst 2021-03-08 17:15:37 -07:00
isdn
kbuild Kconfig updates for v5.13 2021-04-29 14:32:00 -07:00
kernel-hacking docs: kernel-hacking: be more civil 2021-02-11 10:00:40 -07:00
leds Documentation: Add leading slash to some paths 2021-03-31 13:49:19 -06:00
litmus-tests
livepatch docs: livepatch: Fix a typo and remove the unnecessary gaps in a sentence 2021-03-08 17:25:16 -07:00
locking
m68k
maintainer media: add a subsystem profile documentation 2021-03-22 08:56:42 +01:00
mhi
mips
misc-devices dw-xdata-pcie: Update outdated info and improve text format 2021-04-14 19:47:28 +02:00
netlabel
networking Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-04-28 11:59:31 -07:00
nios2
nvdimm
openrisc
parisc
PCI Documentation: PCI: Add PCI endpoint NTB function user guide 2021-02-23 14:15:45 -06:00
pcmcia
power power supply and reset changes for the v5.13 series 2021-04-28 15:43:58 -07:00
powerpc docs: powerpc: Fix misspellings and grammar errors 2021-03-31 13:50:59 -06:00
process It's been a relatively busy cycle in docsland, though more than usually 2021-04-26 13:22:43 -07:00
RCU docs: Correctly spell Stephen Hemminger's name 2021-03-15 13:53:24 -07:00
riscv
s390 s390/pci: expose UID uniqueness guarantee 2021-04-05 11:30:57 +02:00
scheduler sched/debug: Rename the sched_debug parameter to sched_verbose 2021-04-17 13:22:44 +02:00
scsi for-5.13/block-2021-04-27 2021-04-28 14:27:12 -07:00
security doc: trusted-encrypted: updates with TEE as a new trust source 2021-04-14 16:30:30 +03:00
sh
sound ALSA: jack: implement software jack injection via debugfs 2021-02-02 10:37:07 +01:00
sparc
sphinx docs: sphinx: Fix couple of spellings in the file rstFlatTable.py 2021-03-06 17:36:50 -07:00
sphinx-static
spi spi: Updates for v5.13 2021-04-26 16:32:11 -07:00
staging
target
timers Documentation: Replace lkml.org links with lore 2021-01-11 12:47:38 -07:00
trace Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
translations It's been a relatively busy cycle in docsland, though more than usually 2021-04-26 13:22:43 -07:00
usb docs: usbip: Fix major fields and descriptions in protocol 2021-04-09 16:04:45 +02:00
userspace-api Networking changes for 5.13. 2021-04-29 11:57:23 -07:00
virt It's been a relatively busy cycle in docsland, though more than usually 2021-04-26 13:22:43 -07:00
vm mm: gup: remove FOLL_SPLIT 2021-04-30 11:20:37 -07:00
w1
watchdog docs: watchdog: fix obsolete include file reference in pcwd 2021-03-06 17:36:51 -07:00
x86 x86/sgx: Introduce virtual EPC for use by KVM guests 2021-04-06 09:43:17 +02:00
xtensa A much quieter cycle for documentation (happily), with, one hopes, the bulk 2020-12-14 16:55:54 -08:00
.gitignore
arch.rst docs: Group arch-specific documentation under "CPU Architectures" 2021-03-15 13:35:35 -06:00
asm-annotations.rst x86/entry: Emit a symbol for register restoring thunk 2021-01-14 17:18:25 +01:00
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py docs: conf.py: adjust the LaTeX document output 2021-03-08 17:20:03 -07:00
COPYING-logo
docutils.conf
dontdiff kbuild: generate Module.symvers only when vmlinux exists 2021-04-25 05:17:02 +09:00
index.rst docs: Group arch-specific documentation under "CPU Architectures" 2021-03-15 13:35:35 -06:00
Kconfig
logo.gif
Makefile kbuild: remove PYTHON variable 2021-02-01 10:37:19 +09:00
memory-barriers.txt
SubmittingPatches
watch_queue.rst