diff options
| author | Yafang Shao <[email protected]> | 2023-02-14 15:35:49 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2023-02-16 20:43:55 -0800 |
| commit | 2ef8ed7ddd2e6e69da7802be51af8ad71326a74f (patch) | |
| tree | abf089b7cce04ead6f17bb66efa8c03257a6edd3 /tools/testing/selftests/bpf/progs/test_autoload.c | |
| parent | 44081c77e8a4aac9c5a010ed0d9ccdcf684041e1 (diff) | |
mm: percpu: fix incorrect size in pcpu_obj_full_size()
The extra space which is used to store the obj_cgroup membership is only
valid when kmemcg is enabled. The kmemcg can be disabled via the kernel
parameter "cgroup.memory=nokmem" at boot time. This helper is also used
in non-memcg code, for example the tracepoint, so we should fix it.
It was found by code review when I was implementing bpf memory usage[1].
No real issue happens in production environment.
[1]. https://lwn.net/Articles/921991/
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Yafang Shao <[email protected]>
Reviewed-by: Roman Gushchin <[email protected]>
Acked-by: Dennis Zhou <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: Christoph Lameter <[email protected]>
Cc: Vasily Averin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_autoload.c')
0 files changed, 0 insertions, 0 deletions