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| author | Daan De Meyer <daan.j.demeyer@gmail.com> | 2021-09-09 16:12:55 +0100 |
|---|---|---|
| committer | Daan De Meyer <daan.j.demeyer@gmail.com> | 2021-09-20 13:53:11 +0100 |
| commit | 064a5c1438690f9454ad9bff05ec4ec2acfa67d2 (patch) | |
| tree | eb03352f75a79307dd38d86e913b3e1a52521eaf /src/core/manager.h | |
| parent | f2ed82d5107cfe557470958a7c0857202952aac3 (diff) | |
| download | systemd-064a5c1438690f9454ad9bff05ec4ec2acfa67d2.tar.gz | |
oom: Add support for user unit ManagedOOM property updates
Compared to PID1 where systemd-oomd has to be the client to PID1
because PID1 is a more privileged process than systemd-oomd, systemd-oomd
is the more privileged process compared to a user manager so we have
user managers be the client whereas systemd-oomd is now the server.
The same varlink protocol is used between user managers and systemd-oomd
to deliver ManagedOOM property updates. systemd-oomd now sets up a varlink
server that user managers connect to to send ManagedOOM property updates.
We also add extra validation to make sure that non-root senders don't
send updates for cgroups they don't own.
The integration test was extended to repeat the chill/bloat test using
a user manager instead of PID1.
Diffstat (limited to 'src/core/manager.h')
| -rw-r--r-- | src/core/manager.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/core/manager.h b/src/core/manager.h index 1220c9fb16..c60f9fa9b2 100644 --- a/src/core/manager.h +++ b/src/core/manager.h @@ -446,8 +446,11 @@ struct Manager { bool honor_device_enumeration; VarlinkServer *varlink_server; - /* Only systemd-oomd should be using this to subscribe to changes in ManagedOOM settings */ - Varlink *managed_oom_varlink_request; + /* When we're a system manager, this object manages the subscription from systemd-oomd to PID1 that's + * used to report changes in ManagedOOM settings (systemd server - oomd client). When + * we're a user manager, this object manages the client connection from the user manager to + * systemd-oomd to report changes in ManagedOOM settings (systemd client - oomd server). */ + Varlink *managed_oom_varlink; }; static inline usec_t manager_default_timeout_abort_usec(Manager *m) { |