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3ce4fee4401206cf5a2c476ec0ee6c90191dfade
linux/include
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Miaohe Lin 3ce4fee440 mm/huge_memory: check pmd_present first in is_huge_zero_pmd 
When pmd is non-present, pmd_pfn returns an insane value. So we should
check pmd_present first to avoid acquiring such insane value and also
avoid touching possible cold huge_zero_pfn cache line when pmd isn't
present.

Link: https://lkml.kernel.org/r/20220704132201.14611-11-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Zach O'Keefe <zokeefe@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-17 17:14:45 -07:00
..
acpi
Merge tag 'cxl-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
2022-05-27 21:24:19 -07:00
asm-generic
kernel: add platform_has() infrastructure
2022-06-06 08:06:00 +02:00
clocksource
Merge tag 'pwm/for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
2022-06-01 10:49:11 -07:00
crypto
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drm
drm/ttm: fix bulk move handling v2
2022-06-14 11:15:19 +02:00
dt-bindings
Merge tag 'char-misc-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2022-06-03 11:36:34 -07:00
keys
certs: Move load_certificate_list() to be with the asymmetric keys code
2022-06-21 16:05:06 +01:00
kunit
kunit: take kunit_assert as const
2022-05-16 13:23:00 -06:00
kvm
Merge branch kvm-arm64/per-vcpu-host-pmu-data into kvmarm-master/next
2022-05-16 17:48:36 +01:00
linux
mm/huge_memory: check pmd_present first in is_huge_zero_pmd
2022-07-17 17:14:45 -07:00
math-emu
…
media
media: h264: Sort p/b reflist using frame_num
2022-05-17 10:02:29 +02:00
memory
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misc
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net
sock: redo the psock vs ULP protection check
2022-06-23 10:08:30 +02:00
pcmcia
ARM: pxa/sa1100: move I/O space to PCI_IOBASE
2022-05-07 22:56:17 +02:00
ras
…
rdma
RDMA/core: Fix typo in comment
2022-05-24 11:24:58 -03:00
scsi
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2022-05-25 19:09:48 -07:00
soc
Merge tag 'arm-drivers-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2022-05-26 10:32:47 -07:00
sound
Merge tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2022-06-02 15:23:54 -07:00
target
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2022-05-25 19:09:48 -07:00
trace
Merge tag 'ata-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
2022-06-24 11:12:34 -07:00
uapi
io_uring: remove IORING_CLOSE_FD_AND_FILE_SLOT
2022-06-14 10:57:40 -06:00
ufs
scsi: ufs: Split the drivers/scsi/ufs directory
2022-05-19 20:27:37 -04:00
vdso
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video
video: fbdev: radeon: Fix spelling typo in comment
2022-05-26 13:38:59 +02:00
xen
arm/xen: Assign xen-grant DMA ops for xen-grant DMA devices
2022-06-06 16:07:30 +02:00