aboutsummaryrefslogtreecommitdiff
path: root/arch/x86/kernel/pci-iommu_table.c
diff options
context:
space:
mode:
authorSteve Capper <steve.capper@linaro.org>2014-03-21 10:55:36 +0000
committerSteve Capper <steve.capper@linaro.org>2014-08-27 15:37:02 +0100
commite376930ae25e6556c71b1c2d4531244b3c104353 (patch)
tree8d85683aebc3630037b80839292cd47bca3800a5 /arch/x86/kernel/pci-iommu_table.c
parent07e9c2c90b1a373d0bfef06bf1f6ddcf18317275 (diff)
downloadlinux-e376930ae25e6556c71b1c2d4531244b3c104353.tar.gz
arm64: mm: Enable RCU fast_gupfast_gup/3.17-rc1
Activate the RCU fast_gup for ARM64. 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> Tested-by: Dann Frazier <dann.frazier@canonical.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/x86/kernel/pci-iommu_table.c')
0 files changed, 0 insertions, 0 deletions