From 03b77e17aeb22a5935ea20d585ca6a1f2947e62b Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Thu, 2 Mar 2023 20:14:41 -0800 Subject: bpf: Rename __kptr_ref -> __kptr and __kptr -> __kptr_untrusted. __kptr meant to store PTR_UNTRUSTED kernel pointers inside bpf maps. The concept felt useful, but didn't get much traction, since bpf_rdonly_cast() was added soon after and bpf programs received a simpler way to access PTR_UNTRUSTED kernel pointers without going through restrictive __kptr usage. Rename __kptr_ref -> __kptr and __kptr -> __kptr_untrusted to indicate its intended usage. The main goal of __kptr_untrusted was to read/write such pointers directly while bpf_kptr_xchg was a mechanism to access refcnted kernel pointers. The next patch will allow RCU protected __kptr access with direct read. At that point __kptr_untrusted will be deprecated. Signed-off-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann Acked-by: David Vernet Link: https://lore.kernel.org/bpf/20230303041446.3630-2-alexei.starovoitov@gmail.com --- tools/testing/selftests/bpf/progs/lru_bug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools/testing/selftests/bpf/progs/lru_bug.c') diff --git a/tools/testing/selftests/bpf/progs/lru_bug.c b/tools/testing/selftests/bpf/progs/lru_bug.c index 687081a724b3..ad73029cb1e3 100644 --- a/tools/testing/selftests/bpf/progs/lru_bug.c +++ b/tools/testing/selftests/bpf/progs/lru_bug.c @@ -4,7 +4,7 @@ #include struct map_value { - struct task_struct __kptr *ptr; + struct task_struct __kptr_untrusted *ptr; }; struct { -- cgit