From: JP Kobryn <inwardvessel@gmail.com>
To: shakeel.butt@linux.dev, tj@kernel.org, mhocko@kernel.org,
hannes@cmpxchg.org, yosryahmed@google.com,
akpm@linux-foundation.org
Cc: linux-mm@kvack.org, cgroups@vger.kernel.org
Subject: [RFC PATCH 8/9 v2] cgroup: remove bpf rstat flush from css generic flush
Date: Thu, 2 Jan 2025 17:50:19 -0800 [thread overview]
Message-ID: <20250103015020.78547-9-inwardvessel@gmail.com> (raw)
In-Reply-To: <20250103015020.78547-1-inwardvessel@gmail.com>
Remove the bpf-specific flush call from the generic subsystem flush. Leave it
up to bpf programs to manually flush any subsystems desired by using the kfunc
cgroup_rstat_flush().
Signed-off-by: JP Kobryn <inwardvessel@gmail.com>
---
kernel/cgroup/rstat.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/cgroup/rstat.c b/kernel/cgroup/rstat.c
index c52e8429c75d..03effaaf09a4 100644
--- a/kernel/cgroup/rstat.c
+++ b/kernel/cgroup/rstat.c
@@ -346,10 +346,8 @@ static void cgroup_rstat_flush_locked(struct cgroup_subsys_state *css)
for_each_possible_cpu(cpu) {
struct cgroup_subsys_state *pos = cgroup_rstat_updated_list(css, cpu);
- for (; pos; pos = pos->rstat_flush_next) {
- bpf_rstat_flush(pos->cgroup, cgroup_parent(pos->cgroup), cpu);
+ for (; pos; pos = pos->rstat_flush_next)
pos->ss->css_rstat_flush(pos, cpu);
- }
/* play nice and yield if necessary */
if (need_resched() || spin_needbreak(lock)) {
--
2.47.1
next prev parent reply other threads:[~2025-01-03 1:50 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-03 1:50 [RFC PATCH 0/9 v2] cgroup: separate per-subsystem rstat trees JP Kobryn
2025-01-03 1:50 ` [RFC PATCH 1/9 v2] cgroup: change cgroup to css in rstat updated and flush api JP Kobryn
2025-01-03 1:50 ` [RFC PATCH 2/9 v2] cgroup: change cgroup to css in rstat internal flush and lock funcs JP Kobryn
2025-01-03 1:50 ` [RFC PATCH 3/9 v2] cgroup: change cgroup to css in rstat init and exit api JP Kobryn
2025-01-03 1:50 ` [RFC PATCH 4/9 v2] cgroup: split rstat from cgroup into separate css JP Kobryn
2025-01-03 1:50 ` [RFC PATCH 5/9 v2] cgroup: separate locking between base css and others JP Kobryn
2025-01-03 1:50 ` [RFC PATCH 6/9 v2] cgroup: isolate base stat flush JP Kobryn
2025-01-03 1:50 ` [RFC PATCH 7/9 v2] cgroup: remove unneeded rcu list JP Kobryn
2025-01-03 1:50 ` JP Kobryn [this message]
2025-01-03 1:50 ` [RFC PATCH 9/9 v2] cgroup: avoid allocating rstat when flush func not present JP Kobryn
2025-01-03 22:08 ` [RFC PATCH 0/9 v2] cgroup: separate per-subsystem rstat trees Tejun Heo
2025-01-13 18:39 ` Shakeel Butt
2025-01-13 19:14 ` Tejun Heo
2025-01-06 23:13 ` Yosry Ahmed
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