On Wed, Dec 02, 2020 at 06:54:46PM -0800, Alexei Starovoitov wrote: > On Tue, Dec 1, 2020 at 1:59 PM Roman Gushchin <guro@xxxxxx> wrote: > > > > 5) Cryptic -EPERM is returned on exceeding the limit. Libbpf even had > > a function to "explain" this case for users. > ... > > v9: > > - always charge the saved memory cgroup, by Daniel, Toke and Alexei > > - added bpf_map_kzalloc() > > - rebase and minor fixes > > This looks great. Applied. Thanks! > Please follow up with a change to libbpf's pr_perm_msg(). > That helpful warning should stay for old kernels, but it would be > misleading for new kernels. > libbpf probably needs a feature check to make this warning conditional. I think we've discussed it several months ago and at that time we didn't find a good way to check this feature. I'll think again, but if somebody has any ideas here, I'll appreciate a lot.
