On Mon, Dec 14, 2020 at 12:13 PM Cong Wang <xiyou.wangcong@xxxxxxxxx> wrote: > > From: Cong Wang <cong.wang@xxxxxxxxxxxxx> > > This patchset introduces a new bpf hash map which has timeout. It's a bit too short a cover letter for a pretty major new type of hash maps. Please expand on the problem it's trying to solve, how you tested and benchmarked it, etc. > Patch 1 is a preparation, patch 2 is the implementation of timeout > map, patch 3 updates an existing hash map ptr test, patch 4 and > patch 5 contain two test cases for timeout map. > > Please check each patch description for more details. > > --- > v2: fix hashmap ptr test > add a test case in map ptr test > factor out htab_timeout_map_alloc() > > Cong Wang (5): > bpf: use index instead of hash for map_locked[] > bpf: introduce timeout map > selftests/bpf: update elem_size check in map ptr test > selftests/bpf: add a test case for bpf timeout map > selftests/bpf: add timeout map check in map_ptr tests > > include/linux/bpf_types.h | 1 + > include/uapi/linux/bpf.h | 3 +- > kernel/bpf/hashtab.c | 301 ++++++++++++++++-- > kernel/bpf/syscall.c | 3 +- > tools/include/uapi/linux/bpf.h | 1 + > .../selftests/bpf/progs/map_ptr_kern.c | 22 +- > tools/testing/selftests/bpf/test_maps.c | 41 +++ > 7 files changed, 340 insertions(+), 32 deletions(-) > > -- > 2.25.1 >
