On 2023-08-11 03:00, Taylor R Campbell wrote: > So is there a way to limit the memory use of memfd?
You are correct, currently the only limits are via F_SEAL_*. > Maybe the memfd > should contribute toward RLIMIT_AS somehow, or something like that? It could contribute directly to RLIMIT_AS (in the same way that mmap does it), but then the memory would be double counted when you mmap the memfd(?), which seems undesirable. Maybe memfd should respect RLIMIT_FSIZE, since memfds are supposed to behave like regular files as much as possible. Also, I think this is much simpler to add (just an extra check when truncating?). Theo(dore)
