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authorChen Wandun <chenwandun@huawei.com>2022-05-26 15:26:56 +0300
committerTejun Heo <tj@kernel.org>2022-06-07 20:11:47 +0300
commit5f69a6577bc33d8f6d6bbe02bccdeb357b287f56 (patch)
treee411f7730aabe4d2c485f550367c884e1c84a94b /include/linux/cgroup-defs.h
parente71e60cd74df9386c3f684c54888f2367050b831 (diff)
downloadlinux-5f69a6577bc33d8f6d6bbe02bccdeb357b287f56.tar.xz
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/cgroup-defs.h')
-rw-r--r--include/linux/cgroup-defs.h2
1 files changed, 1 insertions, 1 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;