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	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-06-17 20:20:36 -07:00
bpf_lru_list.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206	2019-05-30 11:29:53 -07:00
bpf_lru_list.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206	2019-05-30 11:29:53 -07:00
btf.c	bpf: allow for key-less BTF in array map	2019-04-09 17:05:46 -07:00
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	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295	2019-06-05 17:36:38 +02:00
disasm.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295	2019-06-05 17:36:38 +02:00
hashtab.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-06-17 20:20:36 -07:00
helpers.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295	2019-06-05 17:36:38 +02:00
inode.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
local_storage.c	bpf: move memory size checks to bpf_map_charge_init()	2019-05-31 16:52:56 -07:00
lpm_trie.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-06-22 08:59:24 -04:00
Makefile	bpf: silence warning messages in core	2019-06-12 16:51:02 +02:00
map_in_map.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206	2019-05-30 11:29:53 -07:00
map_in_map.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206	2019-05-30 11:29:53 -07:00
offload.c	bpf: offload: add priv field for drivers	2019-02-12 17:07:09 +01:00
percpu_freelist.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206	2019-05-30 11:29:53 -07:00
percpu_freelist.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206	2019-05-30 11:29:53 -07:00
queue_stack_maps.c	bpf: move memory size checks to bpf_map_charge_init()	2019-05-31 16:52:56 -07:00
reuseport_array.c	bpf: move memory size checks to bpf_map_charge_init()	2019-05-31 16:52:56 -07:00
stackmap.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-06-07 11:00:14 -07:00
syscall.c	bpf: implement getsockopt and setsockopt hooks	2019-06-27 15:25:16 -07:00
tnum.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
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