Revision 96d454cd2c1668010406ea4c28ab915bcbb747f4 authored by Linus Torvalds on 28 August 2020, 18:37:33 UTC, committed by Linus Torvalds on 28 August 2020, 18:37:33 UTC
Pull arm64 fixes from Catalin Marinas: - Fix kernel build with the integrated LLVM assembler which doesn't see the -Wa,-march option. - Fix "make vdso_install" when COMPAT_VDSO is disabled. - Make KVM more robust if the AT S1E1R instruction triggers an exception (architecture corner cases). * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: KVM: arm64: Set HCR_EL2.PTW to prevent AT taking synchronous exception KVM: arm64: Survive synchronous exceptions caused by AT instructions KVM: arm64: Add kvm_extable for vaxorcism code arm64: vdso32: make vdso32 install conditional arm64: use a common .arch preamble for inline assembly
Kconfig.iosched
# SPDX-License-Identifier: GPL-2.0
if BLOCK
menu "IO Schedulers"
config MQ_IOSCHED_DEADLINE
tristate "MQ deadline I/O scheduler"
default y
help
MQ version of the deadline IO scheduler.
config MQ_IOSCHED_KYBER
tristate "Kyber I/O scheduler"
default y
help
The Kyber I/O scheduler is a low-overhead scheduler suitable for
multiqueue and other fast devices. Given target latencies for reads and
synchronous writes, it will self-tune queue depths to achieve that
goal.
config IOSCHED_BFQ
tristate "BFQ I/O scheduler"
help
BFQ I/O scheduler for BLK-MQ. BFQ distributes the bandwidth of
of the device among all processes according to their weights,
regardless of the device parameters and with any workload. It
also guarantees a low latency to interactive and soft
real-time applications. Details in
Documentation/block/bfq-iosched.rst
config BFQ_GROUP_IOSCHED
bool "BFQ hierarchical scheduling support"
depends on IOSCHED_BFQ && BLK_CGROUP
select BLK_CGROUP_RWSTAT
help
Enable hierarchical scheduling in BFQ, using the blkio
(cgroups-v1) or io (cgroups-v2) controller.
config BFQ_CGROUP_DEBUG
bool "BFQ IO controller debugging"
depends on BFQ_GROUP_IOSCHED
help
Enable some debugging help. Currently it exports additional stat
files in a cgroup which can be useful for debugging.
endmenu
endif
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