2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-25 05:34:00 +08:00
linux-next/arch/arm
Nathan Lynch 09edea4f8f ARM: 8410/1: VDSO: fix coarse clock monotonicity regression
Since 906c55579a ("timekeeping: Copy the shadow-timekeeper over the
real timekeeper last") it has become possible on ARM to:

- Obtain a CLOCK_MONOTONIC_COARSE or CLOCK_REALTIME_COARSE timestamp
  via syscall.
- Subsequently obtain a timestamp for the same clock ID via VDSO which
  predates the first timestamp (by one jiffy).

This is because ARM's update_vsyscall is deriving the coarse time
using the __current_kernel_time interface, when it should really be
using the timekeeper object provided to it by the timekeeping core.
It happened to work before only because __current_kernel_time would
access the same timekeeper object which had been passed to
update_vsyscall.  This is no longer the case.

Cc: stable@vger.kernel.org
Fixes: 906c55579a ("timekeeping: Copy the shadow-timekeeper over the real timekeeper last")
Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-08-11 13:42:44 +01:00
..
boot Minor fixes for omaps against v4.2-rc1. Mostly just minor dts changes 2015-07-09 15:38:16 -07:00
common TTY/Serial driver patches for 4.2-rc1 2015-06-26 15:53:22 -07:00
configs Allwinner late changes for 4.2 2015-07-09 15:08:44 -07:00
crypto
firmware
include ARM: fix __virt_to_idmap build error on !MMU 2015-07-17 15:08:40 +01:00
kernel ARM: 8410/1: VDSO: fix coarse clock monotonicity regression 2015-08-11 13:42:44 +01:00
kvm Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-06-26 12:20:00 -07:00
lib ARM: avoid unwanted GCC memset()/memcpy() optimisations for IO variants 2015-07-03 20:46:15 +01:00
mach-alpine
mach-asm9260
mach-at91 genalloc: rename dev_get_gen_pool() to gen_pool_get() 2015-06-30 19:45:01 -07:00
mach-axxia
mach-bcm ARM: BCM: Do not select CONFIG_MTD_NAND_BRCMNAND 2015-07-01 13:04:13 -07:00
mach-berlin ARM: SoC: driver updates for v4.2 2015-06-26 11:54:29 -07:00
mach-clps711x
mach-cns3xxx
mach-davinci ARM: SoC cleanups for v4.2 2015-06-26 11:08:27 -07:00
mach-digicolor
mach-dove ARM: dove: fix legacy dove IRQ numbers 2015-06-24 11:05:57 +02:00
mach-ebsa110
mach-efm32
mach-ep93xx ARM: ep93xx: simone: support for SPI-based MMC/SD cards 2015-06-11 14:21:29 -07:00
mach-exynos The changes to the common clock framework for 4.2 are dominated by new 2015-07-01 19:22:00 -07:00
mach-footbridge
mach-gemini ARM: gemini: Fix race in installing GPIO chained IRQ handler 2015-06-18 14:03:08 +02:00
mach-highbank
mach-hisi arm/mach-hisi: remove legacy __CPUINIT section that crept in 2015-06-16 14:12:21 -04:00
mach-imx genalloc: rename dev_get_gen_pool() to gen_pool_get() 2015-06-30 19:45:01 -07:00
mach-integrator ARM: 8365/1: introduce sp804_timer_disable and remove arm_timer.h inclusion 2015-06-02 09:58:18 +01:00
mach-iop13xx
mach-iop32x
mach-iop33x
mach-ixp4xx
mach-keystone Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-06-26 12:20:00 -07:00
mach-ks8695
mach-lpc18xx ARM: lpc18xx: add basic support for NXP LPC18xx/43xx SoCs 2015-05-15 21:43:56 +02:00
mach-lpc32xx Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:19:35 -07:00
mach-mediatek
mach-meson
mach-mmp
mach-moxart
mach-mv78xx0
mach-mvebu ARM: SoC: late fixes and dependencies 2015-07-02 14:40:49 -07:00
mach-mxs
mach-netx
mach-nomadik
mach-nspire ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource 2015-06-02 09:58:18 +01:00
mach-omap1 ARM: SoC: platform support for v4.2 2015-06-26 11:34:35 -07:00
mach-omap2 Merge branch 'fixes-rc1' into omap-for-v4.2/fixes 2015-07-06 05:33:17 -07:00
mach-orion5x
mach-picoxcell
mach-prima2 move CSR rtc iobrg read/write API to be regmap 2015-07-08 14:20:12 -07:00
mach-pxa ARM: SoC: platform support for v4.2 2015-06-26 11:34:35 -07:00
mach-qcom
mach-realview ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource 2015-06-02 09:58:18 +01:00
mach-rockchip Remove __cpuinit macros and users. 2015-07-02 09:54:14 -07:00
mach-rpc
mach-s3c24xx
mach-s3c64xx
mach-s5pv210
mach-sa1100 Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-06-26 12:20:00 -07:00
mach-shmobile ARM: SoC: platform support for v4.2 2015-06-26 11:34:35 -07:00
mach-socfpga genalloc: rename dev_get_gen_pool() to gen_pool_get() 2015-06-30 19:45:01 -07:00
mach-spear
mach-sti
mach-stm32 ARM: Add STM32 family machine 2015-05-15 21:43:23 +02:00
mach-sunxi Allwinner late changes for 4.2 2015-07-09 15:08:44 -07:00
mach-tegra ARM: SoC: platform support for v4.2 2015-06-26 11:34:35 -07:00
mach-u300
mach-uniphier ARM: uniphier: only select TWD for SMP 2015-05-20 17:21:30 +02:00
mach-ux500 ARM: ux500: delete static resource defines 2015-05-18 15:08:15 +02:00
mach-versatile ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource 2015-06-02 09:58:18 +01:00
mach-vexpress arm: don't use module_init in non-modular mach-vexpress/spc.c code 2015-06-16 14:12:29 -04:00
mach-vt8500
mach-w90x900
mach-zx ARM: zx: fix building with CONFIG_THUMB2_KERNEL 2015-05-22 16:45:54 +02:00
mach-zynq ARM: SoC: platform support for v4.2 2015-06-26 11:34:35 -07:00
mm ARM: invalidate L1 before enabling coherency 2015-07-17 15:08:40 +01:00
net
nwfpe
oprofile
plat-iop
plat-omap ARM: OMAP1: Change interrupt numbering for sparse IRQ 2015-05-20 09:01:21 -07:00
plat-orion
plat-pxa
plat-samsung ARM: SAMSUNG: Constify platform_device_id 2015-06-06 02:18:02 +09:00
plat-versatile
probes
tools
vdso ARM: 8405/1: VDSO: fix regression with toolchains lacking ld.bfd executable 2015-07-31 18:54:45 +01:00
vfp ARM: vfp: Add vfp_disable for problematic platforms 2015-05-20 15:07:00 -07:00
xen xen: Include xen/page.h rather than asm/xen/page.h 2015-06-17 16:14:18 +01:00
Kconfig Merge branches 'fixes' and 'ioremap' into for-linus 2015-07-07 12:35:33 +01:00
Kconfig-nommu
Kconfig.debug Merge branches 'fixes' and 'ioremap' into for-linus 2015-07-07 12:35:33 +01:00
Makefile Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-06-26 12:20:00 -07:00