On Thu, Jun 22, 2023 at 09:58:14AM +0000, Anton Protopopov wrote: > Add a new map test, map_percpu_stats.c, which is checking the correctness of > map's percpu elements counters. For supported maps the test upserts a number > of elements, checks the correctness of the counters, then deletes all the > elements and checks again that the counters sum drops down to zero. > > The following map types are tested: > > * BPF_MAP_TYPE_HASH, BPF_F_NO_PREALLOC > * BPF_MAP_TYPE_PERCPU_HASH, BPF_F_NO_PREALLOC > * BPF_MAP_TYPE_HASH, > * BPF_MAP_TYPE_PERCPU_HASH, > * BPF_MAP_TYPE_LRU_HASH > * BPF_MAP_TYPE_LRU_PERCPU_HASH > > Signed-off-by: Anton Protopopov <aspsk@xxxxxxxxxxxxx> > --- > .../bpf/map_tests/map_percpu_stats.c | 336 ++++++++++++++++++ > .../selftests/bpf/progs/map_percpu_stats.c | 24 ++ please add another patch with an extension to map_ptr_kern.c where it not only checks hash->count.counter, but new elem count as well.
