Liu Shixin f498150208 mm/huge_memory: prevent THP_ZERO_PAGE_ALLOC increased twice ... A user who reads THP_ZERO_PAGE_ALLOC may be more concerned about the huge zero pages that are really allocated for thp. It is misleading to increase THP_ZERO_PAGE_ALLOC twice if two threads call get_huge_zero_page concurrently. Don't increase the value if the huge page is not really used. Update Documentation/admin-guide/mm/transhuge.rst to suit. Link: https://lkml.kernel.org/r/20220909021653.3371879-1-liushixin2@huawei.com Signed-off-by: Liu Shixin <liushixin2@huawei.com> Cc: Alexander Potapenko <glider@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2022-10-03 14:03:08 -07:00
..
ABI	mm/demotion: expose memory tier details via sysfs	2022-09-26 19:46:13 -07:00
accounting	filemap: make the accounting of thrashing more consistent	2022-09-26 19:46:06 -07:00
admin-guide	mm/huge_memory: prevent THP_ZERO_PAGE_ALLOC increased twice	2022-10-03 14:03:08 -07:00
arc
arm	SPDX changes for 6.0-rc1	2022-08-04 12:12:54 -07:00
arm64	arm64: errata: add detection for AMEVCNTR01 incrementing incorrectly	2022-08-23 11:06:48 +01:00
block	null_blk: add module parameters for 4 options	2022-08-02 17:14:50 -06:00
bpf	bpf: Update bpf_design_QA.rst to clarify that BTF_ID does not ABIify a function	2022-08-04 13:17:24 -07:00
cdrom
core-api	Maple Tree: add new data structure	2022-09-26 19:46:13 -07:00
cpu-freq
crypto
dev-tools	kasan: dynamically allocate stack ring entries	2022-10-03 14:03:02 -07:00
devicetree	Merge branch 'thermal-core'	2022-08-27 15:07:58 +02:00
doc-guide
driver-api	cxl for 6.0	2022-08-10 11:07:26 -07:00
fault-injection	SUNRPC: Fix server-side fault injection documentation	2022-07-29 20:08:56 -04:00
fb
features	Xtensa updates for v5.20	2022-08-04 15:35:58 -07:00
filesystems	f2fs-for-6.0	2022-08-08 11:18:31 -07:00
firmware_class
firmware-guide	Documentation: ACPI: EINJ: Fix obsolete example	2022-07-21 17:05:42 +02:00
fpga
gpu	Merge tag 'amd-drm-next-5.20-2022-07-26' of https://gitlab.freedesktop.org/agd5f/linux into drm-next	2022-07-27 09:33:45 +10:00
hid
hwmon	This was a moderately busy cycle for documentation, but nothing all that	2022-08-02 19:24:24 -07:00
i2c	docs: i2c: i2c-sysfs: fix hyperlinks	2022-08-11 23:25:05 +02:00
ia64
iio
images
infiniband
input
isdn
kbuild	asm goto: eradicate CC_HAS_ASM_GOTO	2022-08-21 10:06:28 -07:00
kernel-hacking	docs: process: remove outdated submitting-drivers.rst	2022-07-14 15:03:57 -06:00
leds
litmus-tests
livepatch
locking
loongarch	docs/LoongArch: Add I14 description	2022-08-12 13:10:11 +08:00
m68k	video: fbdev: atari: Fix inverse handling	2022-07-18 07:56:17 +02:00
maintainer
mhi
mips
misc-devices
mm	ksm: add the ksm prefix to the names of the ksm private structures	2022-10-03 14:02:43 -07:00
netlabel
networking	docs: net: bonding: remove mentions of trans_start	2022-08-03 19:20:13 -07:00
nios2
nvdimm
openrisc
parisc
PCI	Fix of heap data and clang warnings, support for a new Intel NTB device,	2022-08-13 14:00:45 -07:00
pcmcia
peci
power	Merge branches 'pm-devfreq', 'pm-qos', 'pm-tools' and 'pm-docs'	2022-07-29 19:46:00 +02:00
powerpc	docs: powerpc: add elf_hwcaps to table of contents	2022-07-28 16:19:47 +10:00
process	sound updates for 6.0-rc1	2022-08-06 10:19:51 -07:00
RCU
riscv
s390	s390/docs: fix warnings for vfio_ap driver doc	2022-07-22 13:54:07 +02:00
scheduler
scsi	SCSI misc on 20220804	2022-08-04 19:47:37 -07:00
security	Documentation: siphash: Fix typo in the name of offsetofend macro	2022-07-13 14:01:22 -06:00
sh
sound
sparc
sphinx
sphinx-static
spi
staging
target
timers
tools	rtla: Fix tracer name	2022-08-10 11:43:59 -04:00
trace	Tracing updates for 5.20 / 6.0	2022-08-05 09:41:12 -07:00
translations	LoongArch changes for v5.20	2022-08-12 09:44:23 -07:00
usb	usb: gadget: f_mass_storage: forced_eject attribute	2022-07-14 16:06:42 +02:00
userspace-api	SCSI misc on 20220804	2022-08-04 19:47:37 -07:00
virt	KVM: x86/MMU: properly format KVM_CAP_VM_DISABLE_NX_HUGE_PAGES capability table	2022-08-11 02:35:37 -04:00
w1
watchdog	watchdog/pseries-wdt: initial support for H_WATCHDOG-based watchdog timers	2022-07-20 21:57:39 +10:00
x86	dma-mapping updates	2022-08-06 10:56:45 -07:00
xtensa
.gitignore
arch.rst
asm-annotations.rst
atomic_bitops.txt	wait_on_bit: add an acquire memory barrier	2022-08-26 09:30:25 -07:00
atomic_t.txt
Changes
CodingStyle
conf.py
docutils.conf
dontdiff
index.rst
Kconfig
Makefile
memory-barriers.txt
SubmittingPatches