Alexei Starovoitov a3ce685dd0 bpf: fix precision tracking ... When equivalent state is found the current state needs to propagate precision marks. Otherwise the verifier will prune the search incorrectly. There is a price for correctness: before before broken fixed cnst spill precise precise bpf_lb-DLB_L3.o 1923 8128 1863 1898 bpf_lb-DLB_L4.o 3077 6707 2468 2666 bpf_lb-DUNKNOWN.o 1062 1062 544 544 bpf_lxc-DDROP_ALL.o 166729 380712 22629 36823 bpf_lxc-DUNKNOWN.o 174607 440652 28805 45325 bpf_netdev.o 8407 31904 6801 7002 bpf_overlay.o 5420 23569 4754 4858 bpf_lxc_jit.o 39389 359445 50925 69631 Overall precision tracking is still very effective. Fixes: b5dc0163d8 ("bpf: precise scalar_value tracking") Reported-by: Lawrence Brakmo <brakmo@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Tested-by: Lawrence Brakmo <brakmo@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2019-07-03 11:12:14 +02:00
..
arraymap.c
bpf_lru_list.c
bpf_lru_list.h
btf.c
cgroup.c	bpf: implement getsockopt and setsockopt hooks	2019-06-27 15:25:16 -07:00
core.c	bpf: implement getsockopt and setsockopt hooks	2019-06-27 15:25:16 -07:00
cpumap.c	devmap/cpumap: Use flush list instead of bitmap	2019-06-29 01:31:08 +02:00
devmap.c	devmap: Allow map lookups from eBPF	2019-06-29 01:31:09 +02:00
disasm.c
disasm.h
hashtab.c
helpers.c
inode.c
local_storage.c
lpm_trie.c
Makefile
map_in_map.c
map_in_map.h
offload.c
percpu_freelist.c
percpu_freelist.h
queue_stack_maps.c
reuseport_array.c
stackmap.c
syscall.c	bpf: implement getsockopt and setsockopt hooks	2019-06-27 15:25:16 -07:00
tnum.c
verifier.c	bpf: fix precision tracking	2019-07-03 11:12:14 +02:00
xskmap.c	xskmap: Move non-standard list manipulation to helper	2019-06-29 01:31:08 +02:00