diff options
| author |   Chen Wandun <chenwandun@huawei.com> | 2022-05-26 20:26:56 +0800 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2022-06-07 07:11:47 -1000 |
| commit | 5f69a6577bc33d8f6d6bbe02bccdeb357b287f56 (patch) | |
| tree | e411f7730aabe4d2c485f550367c884e1c84a94b /include/linux | |
| parent | Merge tag 'dma-mapping-5.19-2022-06-06' of git://git.infradead.org/users/hch/dma-mapping (diff) | |
| download | wireguard-linux-5f69a6577bc33d8f6d6bbe02bccdeb357b287f56.tar.xz wireguard-linux-5f69a6577bc33d8f6d6bbe02bccdeb357b287f56.zip | |
psi: dont alloc memory for psi by default
Memory about struct psi_group is allocated by default for
each cgroup even if psi_disabled is true, in this case, these
allocated memory is waste, so alloc memory for struct psi_group
only when psi_disabled is false.
Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cgroup-defs.h | 2 | ||||
| -rw-r--r-- | include/linux/cgroup.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index 1bfcfb1af352..672de25e3ec8 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -475,7 +475,7 @@ struct cgroup { struct work_struct release_agent_work; /* used to track pressure stalls */ - struct psi_group psi; + struct psi_group *psi; /* used to store eBPF programs */ struct cgroup_bpf bpf; diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 0d1ada8968d7..ed53bfe7c46c 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -674,7 +674,7 @@ static inline void pr_cont_cgroup_path(struct cgroup *cgrp) static inline struct psi_group *cgroup_psi(struct cgroup *cgrp) { - return &cgrp->psi; + return cgrp->psi; } bool cgroup_psi_enabled(void); |