> On Jan 19, 2022, at 8:10 PM, Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx> wrote: > > On Wed, Jan 19, 2022 at 03:06:15PM -0800, Song Liu wrote: >> From: Song Liu <songliubraving@xxxxxx> >> >> This enables sub-page memory charge and allocation. >> >> Signed-off-by: Song Liu <songliubraving@xxxxxx> >> [...] >> @@ -808,7 +808,7 @@ int bpf_jit_add_poke_descriptor(struct bpf_prog *prog, >> return slot; >> } >> >> -static atomic_long_t bpf_jit_current; >> +static atomic64_t bpf_jit_current; > > I don't understand the motivation for this change. > bpf_jit_limit is type "long" and it's counting in bytes. > So why change jit_current to atomic64? > atomic_long will be fine even on 32-bit arch. > What did I miss? Hmm.. I think you are right. I guess I missed the fact that we use long bpf_jit_limit. Will remove this change in the next version. Thanks, Song