diff options
| author | Paul E. McKenney <[email protected]> | 2019-09-23 15:37:04 -0700 |
|---|---|---|
| committer | Paul E. McKenney <[email protected]> | 2019-10-30 08:45:14 -0700 |
| commit | 6092f7263f7e56dacf72e383ed7ba9cbabec30e5 (patch) | |
| tree | f244aacd3b89d6864db7c9ca8bd5faa3d22396f3 | |
| parent | 62860da7082e4f2440c6bc96e4710d9c8bfb916b (diff) | |
bpf/cgroup: Replace rcu_swap_protected() with rcu_replace_pointer()
This commit replaces the use of rcu_swap_protected() with the more
intuitively appealing rcu_replace_pointer() as a step towards removing
rcu_swap_protected().
Link: https://lore.kernel.org/lkml/CAHk-=wiAsJLw1egFEE=Z7-GGtM6wcvtyytXZA1+BHqta4gg6Hw@mail.gmail.com/
Reported-by: Linus Torvalds <[email protected]>
[ paulmck: From rcu_replace() to rcu_replace_pointer() per Ingo Molnar. ]
Signed-off-by: Paul E. McKenney <[email protected]>
Acked-by: Andrii Nakryiko <[email protected]>
Acked-by: Song Liu <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: Daniel Borkmann <[email protected]>
Cc: Martin KaFai Lau <[email protected]>
Cc: Yonghong Song <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
| -rw-r--r-- | kernel/bpf/cgroup.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/bpf/cgroup.c b/kernel/bpf/cgroup.c index ddd8addcdb5c..c684cf424849 100644 --- a/kernel/bpf/cgroup.c +++ b/kernel/bpf/cgroup.c @@ -180,8 +180,8 @@ static void activate_effective_progs(struct cgroup *cgrp, enum bpf_attach_type type, struct bpf_prog_array *old_array) { - rcu_swap_protected(cgrp->bpf.effective[type], old_array, - lockdep_is_held(&cgroup_mutex)); + old_array = rcu_replace_pointer(cgrp->bpf.effective[type], old_array, + lockdep_is_held(&cgroup_mutex)); /* free prog array after grace period, since __cgroup_bpf_run_*() * might be still walking the array */ |