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linux/arch/arm
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Steve Capper b8cd51afe0 arm: mm: enable RCU fast_gup 
Activate the RCU fast_gup for ARM.  We also need to force THP splits to
broadcast an IPI s.t.  we block in the fast_gup page walker.  As THP
splits are comparatively rare, this should not lead to a noticeable
performance degradation.

Some pre-requisite functions pud_write and pud_page are also added.

Signed-off-by: Steve Capper <steve.capper@linaro.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dann Frazier <dann.frazier@canonical.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-09 22:26:01 -04:00
..
boot
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-10-08 21:40:54 -04:00
common
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configs
Merge tag 'defconfig-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2014-10-08 17:38:52 -04:00
crypto
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firmware
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include
arm: mm: enable RCU fast_gup
2014-10-09 22:26:01 -04:00
kernel
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-10-09 06:42:04 -04:00
kvm
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2014-10-08 05:27:39 -04:00
lib
ARM: 8137/1: fix get_user BE behavior for target variable with size of 8 bytes
2014-09-12 17:38:59 +01:00
mach-at91
Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2014-10-08 17:37:16 -04:00
mach-axxia
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mach-bcm
Merge tag 'bcm63138-v4' of http://github.com/brcm/linux into next/soc
2014-09-25 23:50:02 +02:00
mach-berlin
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mach-clps711x
Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2014-10-08 17:13:04 -04:00
mach-cns3xxx
CNS3xxx: Fix PCIe read size limit.
2014-09-25 23:35:01 +02:00
mach-davinci
Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2014-10-08 17:22:23 -04:00
mach-dove
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mach-ebsa110
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mach-efm32
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mach-ep93xx
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mach-exynos
Merge tag 'samsung-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup
2014-09-25 23:23:34 +02:00
mach-footbridge
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mach-gemini
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mach-highbank
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mach-hisi
ARM: hisi: depend on ARCH_MULTI_V7
2014-10-02 16:40:10 +02:00
mach-imx
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-10-09 06:42:04 -04:00
mach-integrator
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mach-iop13xx
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mach-iop32x
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mach-iop33x
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mach-ixp4xx
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mach-keystone
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mach-ks8695
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mach-lpc32xx
ARM: LPC32xx: Fix reset function
2014-09-10 17:25:14 +02:00
mach-mediatek
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mach-meson
ARM: meson: add basic support for MesonX SoCs
2014-09-25 17:34:42 +02:00
mach-mmp
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mach-moxart
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mach-msm
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mach-mv78xx0
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mach-mvebu
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mach-mxs
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mach-netx
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mach-nomadik
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mach-nspire
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mach-omap1
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mach-omap2
Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2014-10-08 17:37:16 -04:00
mach-orion5x
ARM: orion5x: Convert pr_warning to pr_warn
2014-09-13 21:29:21 +00:00
mach-picoxcell
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mach-prima2
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mach-pxa
Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2014-10-08 17:13:04 -04:00
mach-qcom
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mach-realview
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mach-rockchip
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mach-rpc
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mach-s3c24xx
ARM: S3C24XX: remove separate restart code
2014-09-14 02:43:09 +09:00
mach-s3c64xx
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mach-s5pv210
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mach-sa1100
ARM: 8136/1: sa1100: add Micro ASIC platform device
2014-09-12 17:39:50 +01:00
mach-shmobile
Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2014-10-08 17:13:04 -04:00
mach-socfpga
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mach-spear
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mach-sti
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mach-sunxi
ARM: sunxi: Remove sun4i reboot code from mach directory
2014-09-11 21:01:47 +02:00
mach-tegra
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mach-u300
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mach-ux500
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mach-versatile
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mach-vexpress
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mach-vt8500
arm, vt8500, LLVMLlinux: Use mcr instead of mcr% for mach-vt8500
2014-09-26 01:49:03 +02:00
mach-w90x900
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mach-zynq
ARM: zynq: Remove useless L2C AUX setting
2014-09-16 12:55:12 +02:00
mm
arm: mm: enable RCU fast_gup
2014-10-09 22:26:01 -04:00
net
net: bpf: arm: make hole-faulting more robust
2014-09-23 12:40:22 -04:00
nwfpe
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oprofile
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plat-iop
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plat-omap
Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2014-10-08 17:06:53 -04:00
plat-orion
dsa: Replace mii_bus with a generic host device
2014-09-15 17:24:20 -04:00
plat-pxa
ARM: pxa: ssp: provide platform_device_id for PXA3xx
2014-09-19 01:56:02 +08:00
plat-samsung
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plat-versatile
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tools
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vfp
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xen
xen/arm: remove mach_to_phys rbtree
2014-09-11 18:11:53 +00:00
Kconfig
arm: mm: enable RCU fast_gup
2014-10-09 22:26:01 -04:00
Kconfig-nommu
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Kconfig.debug
Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2014-10-08 17:13:04 -04:00
Makefile
Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2014-10-08 17:13:04 -04:00