tree 52379ced52c2c2ed5f023073a1aeeb52779e376d
parent 1e0bd5a091e5d9e0f1d5b0e6329b87bb1792f784
author Andrii Nakryiko <andriin@fb.com> 1574011683 -0800
committer Daniel Borkmann <daniel@iogearbox.net> 1574073719 +0100

bpf: Convert bpf_prog refcnt to atomic64_t

Similarly to bpf_map's refcnt/usercnt, convert bpf_prog's refcnt to atomic64
and remove artificial 32k limit. This allows to make bpf_prog's refcounting
non-failing, simplifying logic of users of bpf_prog_add/bpf_prog_inc.

Validated compilation by running allyesconfig kernel build.

Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191117172806.2195367-3-andriin@fb.com