cgroup v2: return cpuset cpu count when no quota is set

Signed-off-by: michuan <michu_an@126.com>

Merge pull request #541 from bytedance/cleanup-getsize

sysfs: cleanup sys_devices_system_cpu_online_getsize

sysfs: cleanup sys_devices_system_cpu_online_getsize

cleanup useless parameters and local variables, meanwhile,
a compiler warning resolved.

Signed-off-by: huteng.ht <huteng.ht@bytedance.com>

Merge pull request #539 from bytedance/calc-online-file-size

sysfs: correct file size of /sys/devices/system/cpu/online.

sysfs: correct file size of /sys/devices/system/cpu/online.

Calculate accurate size of 'online' file in sys_getattr routine.

Signed-off-by: huteng.ht <huteng.ht@bytedance.com>

Merge pull request #537 from dasteihn/sta/commentfix

util: remove doubled comment

util: remove doubled comment

Signed-off-by: Philipp Stanner <stanner@posteo.de>

Merge pull request #536 from yrhki/extra-space

proc_fuse: extra space in /proc/stat

proc_fuse: extra space in /proc/stat

Signed-off-by: Tuomas Yrjölä <mail@yrhki.fi>

Merge pull request #535 from stgraber/master

meson: Syntax nit

meson: Syntax nit

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Merge pull request #533 from stgraber/master

Meson tweaks for init systems

meson: Support multiple init systems

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

init: Fix install paths for sysvinit and openrc

Closes #532

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Merge pull request #531 from stgraber/master

Fix tests

tests: Skip sysfs test on older FUSE versions

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

github: Re-organize Github Actions

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Merge pull request #530 from Blub/2022-01-17/optional-fuse-2

support explicit fuse version choice

support explicit fuse version choice

We'd like to provide an easy upgrade path which doesn't
cause an lxcfs-reload to crash because the new library was
built against the wrong version.

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

Merge pull request #526 from brauner/2022-03-13.fixes

sysfs_fuse: fixes

Merge pull request #528 from thmo/unitdir

Query systemd system unit dir.

Query systemd system unit dir.

Signed-off-by: Thomas Moschny <thomas.moschny@gmx.de>

Merge pull request #527 from Foxboron/morten/fix-libdir

init/meson: Use libdir instead of hardcoded /lib path

init/meson: Use libdir instead of hardcoded /lib path

Hardcoding `/lib` makes meson create a directory which would conflict on
distros with usrmerge as `/lib` is a symlink. We define `libdir` in the
top-level so we should be using that instead.

Signed-off-by: Morten Linderud <morten@linderud.pw>

meson: handle fuse versions with buggy dt_type handling

Link: https://github.com/libfuse/libfuse/pull/591
Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

github: add fuse3 tests

Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

meson: bump fuse version

Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

sysfs_fuse: generate file info for cpu<nr> entries as well

Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

sysfs_fuse: fix indendation

Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

utils: add and use opathdir()

Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

Merge pull request #525 from stgraber/master

More sysfs fixes

tests: Fix sysfs test

For the sysfs test to be useful, we need /sys/devices/system/cpu/ to
actually be mounted.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

sysfs: Don't incorrectly filter entries

The filtering logic was completely skipping any entry which was 3
characters or shorter. Instead change the logic to only attempt to parse
those entries longer than 3 characters.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Merge pull request #524 from Foxboron/morten/docs

meson: Include documentation

Merge pull request #523 from brauner/2022-03-12.fixes

fuse: set file info for fuse2

workflows: disable documentation generation

Signed-off-by: Morten Linderud <morten@linderud.pw>

meson: Include documentation

Documentation was removed from the build system with the migration to
meson. This implements the help2man generation which existed in the
autoconf setup.

Signed-off-by: Morten Linderud <morten@linderud.pw>

tests: add test for issue #522

Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

tree-wide: ensure that file information is set even with legacy fuse

Fixes: #522
Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

tree-wide: remove struct stat argument from DIR_FILLER and make it static inline

Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

lxcfs_fuse: ensure lxcfs_fuse_compat.h is included after including fuse header

Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

Release LXCFS 5.0.0

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Merge pull request #521 from stgraber/master

Makefile: Fix ordering and add PHONY

Makefile: Fix ordering and add PHONY

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Merge pull request #520 from stgraber/master

More meson tweaks

Makefile: Tweak for meson (add dist target)

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

meson: Set check argument on run_command

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Merge pull request #519 from stgraber/master

meson: Cleanup build files

meson: Cleanup build files

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Merge pull request #518 from brauner/2022-03-07.fixes

proc_fuse: improve error message

proc_fuse: improve error message

Fixes: #516
Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

Merge pull request #515 from phanhuy1502/preserve-cpu-sum-when-cpu-set-changes

Preseve cpu sum in /proc/stat when cpuset changes

Preseve cpu sum in /proc/stat when cpuset changes

Signed-off-by: Nguyen Phan Huy <phanhuy1502@gmail.com>

Merge pull request #514 from Blub/2022-01-17/fix-and-reformat-format-strings

fix and reformat format strings

fix and reformat format strings

Some of these missed the spaces in between and in order to
make this more readable and apparent, put one field per line
and add comments matching the field names.

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

Merge pull request #509 from brauner/2021-12-13.fixes

tree-wide: use PRIu64 to print uint64_t

proc_loadavg: use PRIu64 to print uint64_t

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

proc_fuse: use PRIu64 to print uint64_t

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

proc_cpuview: use PRIu64 to print uint64_t

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

proc_fuse: use correct type for swap variables

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

build: move global options further up

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Merge pull request #508 from Blub/2021-12-09/cgv2-swap-meminfo

make meminfo and swaps cgroupv2 aware

make meminfo and swaps cgroupv2 aware

and deduplicate the corresponding code

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

Merge pull request #506 from Sn0rt/empty-cgroup-if-set-unified_cgroup_hierarchy=1

empty cgroup dir if set unified_cgroup_hierarchy=1

empty cgroup dir if set unified_cgroup_hierarchy=1

Signed-off-by: Guohao Wang <wangguohao.2009@gmail.com>

Merge pull request #501 from phanhuy1502/detect-disable-cfs-quota

Skip cpu revise when cfs quota is disable

Skip cpu revise when cfs quota is disable

Signed-off-by: Nguyen Phan Huy <phanhuy1502@gmail.com>

Merge pull request #499 from brauner/2021-11-05.fixes

build: fixes

build: use jinja2 templating

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

build: add LXCFSTARGETDIR to configuration data

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Merge pull request #496 from Foxboron/morten/fix-src

meson: Include lxcfs_fuse.h into source files

meson: Include lxcfs_fuse.h into source files

Signed-off-by: Morten Linderud <morten@linderud.pw>

Merge pull request #495 from brauner/2021-10-20.fixes

build: fixes

github/workflows: meson compile -C build everywhere

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

build: add share/ directory

This was somehow missing until now.

Fixes: #494
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

build: remove newline

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Merge pull request #493 from brauner/2021-10-19.fixes.2

sysfs: fix cpumasks

sysfs: fix cpumasks

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Merge pull request #491 from brauner/2021-10-19.fixes

lxcfs: fixes

macro: cast to correct integer types

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

meson: use shared_module()

The liblxcfs library is supposed to be dlopen()ed.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Merge pull request #492 from Sn0rt/doc/reload-dot-so-file

doc: guide for reload share libary file

doc: guide for reload share libary file

Signed-off-by: sn0rt <wangguohao.2009@gmail.com>

Merge pull request #488 from stgraber/master

github: Drop 16.04

github: Drop 16.04

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Merge pull request #487 from brauner/2021-10-14.fixes

tree-wide: build fixes

build: add __STDC_FORMAT_MACROS

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

tree-wide: use a single fuse header

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

tree-wide: set _GNU_SOURCE in meson.build

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

tree-wide: fix HAVE_FUSE3 checks

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Merge pull request #486 from brauner/2021-10-11.fixes

cpuview: log non-fatal error in verbose mode only

cpuview: log non-fatal error in verbose mode only

Fixes: #482
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Merge pull request #485 from mtstickney/proc_meminfo_slab_padding

Fix padding for Slab entry in /proc/meminfo

Fix padding for Slab entry in /proc/meminfo

The padding used for the 'Slab' entry of /proc/meminfo is three bytes
shorter than the padding used by the kernel. Since we report the host's
file size as the size of the lxcfs file, this means reads would be three
bytes short of the reported file length. In some cases this causes the
client to receive three additional NUL bytes at the end of the file,
which can cause various problems.

Signed-off-by: Matthew Stickney <fiendishlinux@gmail.com>

Merge pull request #484 from brauner/2021-10-07.fixes

lxcfs: fix version and usage handling

build: generate lxcfs.spec file

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

lxcfs: fix version and usage handling

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Merge pull request #483 from Sn0rt/bugfix/version-loss

Bugfix: fix lxcfs --version or -v loss

lxcfs: fix lxcfs CLI -v and no arg output

Signed-off-by: sn0rt <wangguohao.2009@gmail.com>

Merge pull request #481 from brauner/2021-09-23.fixes

README: update build instructions