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| author | Yonghong Song <yhs@fb.com> | 2021-08-10 01:51:51 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2021-08-10 10:10:49 +0200 |
| commit | 87b7b5335e6995a6d64fca98fc67b92b29caac9c (patch) | |
| tree | 11879d3cfc48083ece2a1f0e9960aed3bcca8792 /kernel/tracepoint.c | |
| parent | bpf: Add lockdown check for probe_write_user helper (diff) | |
| download | linux-87b7b5335e6995a6d64fca98fc67b92b29caac9c.tar.xz linux-87b7b5335e6995a6d64fca98fc67b92b29caac9c.zip | |
bpf: Add missing bpf_read_[un]lock_trace() for syscall program
Commit 79a7f8bdb159d ("bpf: Introduce bpf_sys_bpf() helper and program type.")
added support for syscall program, which is a sleepable program.
But the program run missed bpf_read_lock_trace()/bpf_read_unlock_trace(),
which is needed to ensure proper rcu callback invocations. This patch adds
bpf_read_[un]lock_trace() properly.
Fixes: 79a7f8bdb159d ("bpf: Introduce bpf_sys_bpf() helper and program type.")
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210809235151.1663680-1-yhs@fb.com
Diffstat (limited to 'kernel/tracepoint.c')
0 files changed, 0 insertions, 0 deletions