openstlinux/linux-st
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
804eb64615a405b3765fb3618bc07d7d95809add
linux-st/drivers
History
John Hubbard 67446283d8 rapidio: convert get_user_pages() --> pin_user_pages() 
This code was using get_user_pages_fast(), in a "Case 2" scenario
(DMA/RDMA), using the categorization from [1].  That means that it's time
to convert the get_user_pages_fast() + put_page() calls to
pin_user_pages_fast() + unpin_user_pages() calls.

There is some helpful background in [2]: basically, this is a small
part of fixing a long-standing disconnect between pinning pages, and
file systems' use of those pages.

[1] Documentation/core-api/pin_user_pages.rst

[2] "Explicit pinning of user-space pages":
    https://lwn.net/Articles/807108/

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Alexandre Bounine <alex.bou9@gmail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Link: http://lkml.kernel.org/r/20200517235620.205225-3-jhubbard@nvidia.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-04 19:06:26 -07:00
..
accessibility
…
acpi
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
amba
…
android
…
ata
Merge tag 'for-5.8/block-2020-06-01' of git://git.kernel.dk/linux-block
2020-06-02 15:29:19 -07:00
atm
…
auxdisplay
…
base
Merge branch 'akpm' (patches from Andrew)
2020-06-03 20:24:15 -07:00
bcma
…
block
zcomp: Use ARRAY_SIZE() for backends list
2020-06-04 19:06:24 -07:00
bluetooth
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-06-03 16:27:18 -07:00
bus
…
cdrom
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-06-03 16:27:18 -07:00
char
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-06-03 16:27:18 -07:00
clk
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
clocksource
…
connector
…
counter
…
cpufreq
Merge tag 'mips_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
2020-06-03 13:32:21 -07:00
cpuidle
…
crypto
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-06-03 16:27:18 -07:00
dax
device-dax: add memory via add_memory_driver_managed()
2020-06-04 19:06:23 -07:00
dca
…
devfreq
…
dio
…
dma
…
dma-buf
Merge tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drm
2020-06-02 15:04:15 -07:00
edac
…
eisa
…
extcon
…
firewire
…
firmware
Merge branch 'uaccess.access_ok' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-06-01 16:09:43 -07:00
fpga
Merge branch 'uaccess.access_ok' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-06-01 16:09:43 -07:00
fsi
…
gnss
…
gpio
Merge tag 'irq-core-2020-06-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-06-03 10:05:11 -07:00
gpu
drm: remove drm specific kmap_atomic code
2020-06-04 19:06:22 -07:00
greybus
…
hid
…
hsi
…
hv
Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
2020-06-03 15:00:05 -07:00
hwmon
…
hwspinlock
…
hwtracing
Merge tag 'docs-5.8' of git://git.lwn.net/linux
2020-06-01 15:45:27 -07:00
i2c
…
i3c
…
ide
…
idle
…
iio
Merge tag 'irq-core-2020-06-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-06-03 10:05:11 -07:00
infiniband
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-06-03 16:27:18 -07:00
input
…
interconnect
…
iommu
…
ipack
…
irqchip
…
isdn
…
leds
…
lightnvm
Merge tag 'for-5.8/block-2020-06-01' of git://git.kernel.dk/linux-block
2020-06-02 15:29:19 -07:00
macintosh
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-06-03 16:27:18 -07:00
mailbox
…
mcb
…
md
Merge tag 'for-5.8/drivers-2020-06-01' of git://git.kernel.dk/linux-block
2020-06-02 15:37:03 -07:00
media
Merge tag 'media/v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2020-06-03 20:59:38 -07:00
memory
…
memstick
…
message
…
mfd
Merge tag 'platform-drivers-x86-v5.8-1' of git://git.infradead.org/linux-platform-drivers-x86
2020-06-02 12:56:58 -07:00
misc
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
mmc
…
most
…
mtd
Merge tag 'for-5.8/block-2020-06-01' of git://git.kernel.dk/linux-block
2020-06-02 15:29:19 -07:00
mux
…
net
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-06-03 16:27:18 -07:00
nfc
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2020-06-01 12:00:10 -07:00
ntb
…
nubus
…
nvdimm
…
nvme
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-06-03 16:27:18 -07:00
nvmem
…
of
…
opp
…
oprofile
…
parisc
…
parport
…
pci
Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
2020-06-03 15:00:05 -07:00
pcmcia
powerpc: add an ioremap_phb helper
2020-06-02 10:59:10 -07:00
perf
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2020-06-01 15:18:27 -07:00
phy
…
pinctrl
…
platform
Merge tag 'media/v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2020-06-03 20:59:38 -07:00
pnp
…
power
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-06-03 16:27:18 -07:00
powercap
…
pps
…
ps3
…
ptp
…
pwm
…
rapidio
rapidio: convert get_user_pages() --> pin_user_pages()
2020-06-04 19:06:26 -07:00
ras
…
regulator
…
remoteproc
…
reset
…
rpmsg
…
rtc
…
s390
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-06-03 16:27:18 -07:00
sbus
…
scsi
Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
2020-06-03 15:00:05 -07:00
sfi
…
sh
…
siox
…
slimbus
…
soc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-06-03 16:27:18 -07:00
soundwire
…
spi
…
spmi
…
ssb
…
staging
atomisp: avoid warning about unused function
2020-06-03 21:22:46 -07:00
target
…
tc
…
tee
…
thermal
…
thunderbolt
…
tty
Merge tag 'kgdb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux
2020-06-03 14:57:03 -07:00
uio
…
usb
usb: core: kcov: collect coverage from usb complete callback
2020-06-04 19:06:20 -07:00
vdpa
…
vfio
…
vhost
…
video
Merge tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drm
2020-06-02 15:04:15 -07:00
virt
…
virtio
…
visorbus
…
vlynq
…
vme
…
w1
…
watchdog
…
xen
…
zorro
…
Kconfig
…
Makefile
…