From: Jens Axboe <axboe@kernel.dk>
To: io-uring <io-uring@vger.kernel.org>
Subject: [PATCH] io_uring/bpf_filter: use bpf_prog_run_pin_on_cpu() to prevent migration
Date: Tue, 10 Mar 2026 08:44:44 -0600 [thread overview]
Message-ID: <7fccfa01-cb96-4d9f-b71a-56460d49f47d@kernel.dk> (raw)
Since the caller, __io_uring_run_bpf_filters(), doesn't prevent
migration, it should use the migration disabling variant for running
the BPF program.
Fixes: d42eb05e60fe ("io_uring: add support for BPF filtering for opcode restrictions")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
diff --git a/io_uring/bpf_filter.c b/io_uring/bpf_filter.c
index 28a23e92ee81..9cc44764e0ac 100644
--- a/io_uring/bpf_filter.c
+++ b/io_uring/bpf_filter.c
@@ -85,7 +85,7 @@ int __io_uring_run_bpf_filters(struct io_bpf_filter __rcu **filters,
do {
if (filter == &dummy_filter)
return -EACCES;
- ret = bpf_prog_run(filter->prog, &bpf_ctx);
+ ret = bpf_prog_run_pin_on_cpu(filter->prog, &bpf_ctx);
if (!ret)
return -EACCES;
filter = filter->next;
--
Jens Axboe
reply other threads:[~2026-03-10 14:44 UTC|newest]
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