No description
  • C 98.2%
  • Assembly 1%
  • Makefile 0.3%
  • Shell 0.2%
  • Python 0.1%
Find a file
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Christoffer Dall 61bbe38027 KVM: arm/arm64: Avoid work when userspace iqchips are not used
We currently check if the VM has a userspace irqchip in several places
along the critical path, and if so, we do some work which is only
required for having an irqchip in userspace.  This is unfortunate, as we
could avoid doing any work entirely, if we didn't have to support
irqchip in userspace.

Realizing the userspace irqchip on ARM is mostly a developer or hobby
feature, and is unlikely to be used in servers or other scenarios where
performance is a priority, we can use a refcounted static key to only
check the irqchip configuration when we have at least one VM that uses
an irqchip in userspace.

Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2018-01-02 10:05:46 +01:00
arch KVM: arm/arm64: Avoid work when userspace iqchips are not used 2018-01-02 10:05:46 +01:00
block Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2017-12-01 08:05:45 -05:00
certs
crypto X.509: fix comparisons of ->pkey_algo 2017-12-08 15:13:29 +00:00
Documentation ARM: SoC fixes for 4.15-rc 2017-12-10 08:26:59 -08:00
drivers ARM: SoC fixes for 4.15-rc 2017-12-10 08:26:59 -08:00
firmware
fs hpfs: don't bother with the i_version counter or f_version 2017-12-10 12:58:18 -08:00
include KVM: arm/arm64: Provide a get_input_level for the arch timer 2018-01-02 10:05:46 +01:00
init
ipc
kernel futex: futex_wake_op, fix sign_extend32 sign bits 2017-12-10 12:50:57 -08:00
lib Keyrings fixes 2017-12-09 14:39:48 +11:00
mm kmemcheck: rip it out for real 2017-12-08 13:40:17 -08:00
net tcp: evaluate packet losses upon RTT change 2017-12-08 14:14:11 -05:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2017-12-03 13:08:30 -05:00
scripts A handful of documentation fixes. The most significant of these addresses 2017-12-04 13:55:28 -08:00
security KEYS: reject NULL restriction string when type is specified 2017-12-08 15:13:29 +00:00
sound sound fixes for 4.15-rc3 2017-12-06 10:49:14 -08:00
tools kmemcheck: rip it out for real 2017-12-08 13:40:17 -08:00
usr
virt KVM: arm/arm64: Avoid work when userspace iqchips are not used 2018-01-02 10:05:46 +01:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS ARM: SoC fixes for 4.15-rc 2017-12-10 08:26:59 -08:00
Makefile Linux 4.15-rc3 2017-12-10 17:56:26 -08:00
README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.