Steve Capper f3eab7184d arm64: percpu: Make this_cpu accessors pre-empt safe ... this_cpu operations were implemented for arm64 in: 5284e1b arm64: xchg: Implement cmpxchg_double f97fc81 arm64: percpu: Implement this_cpu operations Unfortunately, it is possible for pre-emption to take place between address generation and data access. This can lead to cases where data is being manipulated by this_cpu for a different CPU than it was called on. Which effectively breaks the spec. This patch disables pre-emption for the this_cpu operations guaranteeing that address generation and data manipulation take place without a pre-emption in-between. Fixes: 5284e1b4bc ("arm64: xchg: Implement cmpxchg_double") Fixes: f97fc81079 ("arm64: percpu: Implement this_cpu operations") Reported-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Steve Capper <steve.capper@linaro.org> [catalin.marinas@arm.com: remove space after type cast] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>		2015-03-24 18:02:55 +00:00
..
boot	dtb: change binding name to match with newer firmware DT	2015-03-04 15:54:14 -05:00
configs	ARM: SoC 64-bit changes and additions	2015-02-17 09:47:46 -08:00
crypto	arm64: crypto: increase AES interleave to 4x	2015-02-26 18:31:46 +00:00
include	arm64: percpu: Make this_cpu accessors pre-empt safe	2015-03-24 18:02:55 +00:00
kernel	arm64: efi: don't restore TTBR0 if active_mm points at init_mm	2015-03-20 17:05:16 +00:00
kvm	Fairly small update, but there are some interesting new features.	2015-02-13 09:55:09 -08:00
lib	arm64: __clear_user: handle exceptions on strb	2014-11-13 15:21:26 +00:00
mm	arm64: Honor __GFP_ZERO in dma allocations	2015-03-20 18:18:54 +00:00
net	arm64: bpf: lift restriction on last instruction	2014-12-03 18:04:09 +00:00
xen	arm: xen: implement multicall hypercall support.	2014-04-24 13:09:46 +01:00
Kconfig	ARM: SoC 64-bit changes and additions	2015-02-17 09:47:46 -08:00
Kconfig.debug	arm64: add better page protections to arm64	2015-01-22 14:54:29 +00:00
Makefile	arm64 updates for 3.20:	2015-02-11 18:03:54 -08:00