On Mon, Nov 24, 2025 at 08:38:13PM +0800, Guopeng Zhang wrote: > Hi all, > > This patch series introduces improvements to the cgroup selftests by adding > helper functions to better handle > asynchronous updates in cgroup statistics. These changes are especially > useful for managing cgroup stats like > memory.stat and cgroup.stat, which can be affected by delays (e.g., RCPU > callbacks and asynchronous rstat flushing). > > v4: > - Patch 1/3: Adds the `cg_read_key_long_poll()` helper to poll cgroup keys > with retries and configurable intervals. > - Patch 2/3: Updates `test_memcg_sock()` to use `cg_read_key_long_poll()` > for handling delayed "sock" counter updates in memory.stat. > - Patch 3/3: Replaces `sleep` and retry logic in `test_kmem_dead_cgroups()` > with `cg_read_key_long_poll()` for waiting on `nr_dying_descendants`.
Michal, if this looks good to you, I'll apply after the merge window. Thanks. -- tejun
