On 04/04, Andrii Nakryiko wrote: > > Also, point out in the comments more explicitly why we use seqcount > despite our reader side being rather simple and never retrying. We favor > well-maintained kernel primitive in favor of open-coding our own memory > barriers. > > Link: https://lore.kernel.org/bpf/CAADnVQLLOHZmPO4X_dQ+cTaSDvzdWHzA0qUqQDhLFYL3D6xPxg@xxxxxxxxxxxxxx/ > Reported-by: Alexei Starovoitov <ast@xxxxxxxxxx> > Suggested-by: Sebastian Siewior <bigeasy@xxxxxxxxxxxxx> > Fixes: 8622e45b5da1 ("uprobes: Reuse return_instances between multiple uretprobes within task") > Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx> LGTM. FWIW, Acked-by: Oleg Nesterov <oleg@xxxxxxxxxx>
