On Mon, Jul 27, 2020 at 12:21 PM Roman Gushchin <guro@xxxxxx> wrote: > > Do not use rlimit-based memory accounting for bpf ringbuffer. > It has been replaced with the memcg-based memory accounting. > > bpf_ringbuf_alloc() can't return anything except ERR_PTR(-ENOMEM) > and a valid pointer, so to simplify the code make it return NULL > in the first case. This allows to drop a couple of lines in > ringbuf_map_alloc() and also makes it look similar to other memory > allocating function like kmalloc(). > > Signed-off-by: Roman Gushchin <guro@xxxxxx> > --- LGTM. Acked-by: Andrii Nakryiko <andriin@xxxxxx> > kernel/bpf/ringbuf.c | 24 ++++-------------------- > 1 file changed, 4 insertions(+), 20 deletions(-) > [...]