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| author | Michal Koutný <mkoutny@suse.com> | 2023-08-14 19:59:57 +0200 |
|---|---|---|
| committer | Michal Koutný <mkoutny@suse.com> | 2024-01-03 13:43:04 +0100 |
| commit | 93f8e88d23bd383b5134f32c1e2ee315ac3a38c8 (patch) | |
| tree | c88c62d467735870ecc9ea6b4cd0037860750e70 /src/core | |
| parent | test: Add effective cgroup limits testing (diff) | |
| download | systemd-93f8e88d23bd383b5134f32c1e2ee315ac3a38c8.tar.xz systemd-93f8e88d23bd383b5134f32c1e2ee315ac3a38c8.zip | |
cgroup: Restrict effective limits with global resource provision
Global resource (whole system or root cg's (e.g. in a container)) is
also a well-defined limit for memory and tasks, take it into account
when calculating effective limits.
Diffstat (limited to 'src/core')
| -rw-r--r-- | src/core/cgroup.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/core/cgroup.c b/src/core/cgroup.c index f7b776337a..60a8a55087 100644 --- a/src/core/cgroup.c +++ b/src/core/cgroup.c @@ -4253,6 +4253,17 @@ static uint64_t unit_get_effective_limit_one(Unit *u, CGroupLimitType type) { assert(u); assert(UNIT_HAS_CGROUP_CONTEXT(u)); + if (unit_has_name(u, SPECIAL_ROOT_SLICE)) + switch (type) { + case CGROUP_LIMIT_MEMORY_MAX: + case CGROUP_LIMIT_MEMORY_HIGH: + return physical_memory(); + case CGROUP_LIMIT_TASKS_MAX: + return system_tasks_max(); + default: + assert_not_reached(); + } + cc = unit_get_cgroup_context(u); switch (type) { /* Note: on legacy/hybrid hierarchies memory_max stays CGROUP_LIMIT_MAX unless configured |