diff options
| author | Hiago De Franco <hiago.franco@toradex.com> | 2025-06-02 15:00:56 -0300 |
|---|---|---|
| committer | Hiago De Franco <hiago.franco@toradex.com> | 2025-06-03 10:26:20 -0300 |
| commit | defb81960f4fcb580b75bbc207e5440dad4376d6 (patch) | |
| tree | da4539935a24104d027d92a8f9afd519f2ee625a /kernel/bpf/helpers.c | |
| parent | 5a6602cc6c3204b24470b2429e658c25638b10a9 (diff) | |
| parent | 1b69a86802c7e77a7624fe4970ca7d382a785b8f (diff) | |
Merge branch '5.15-2.2.x-imx' into toradex_5.15-2.2.x-imxtoradex_5.15-2.2.x-imx
Conflicts:
drivers/tty/serial/fsl_lpuart.c
Signed-off-by: Hiago De Franco <hiago.franco@toradex.com>
Diffstat (limited to 'kernel/bpf/helpers.c')
| -rw-r--r-- | kernel/bpf/helpers.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c index 13f870e47ab6..d3feaf6d68eb 100644 --- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -3,6 +3,7 @@ */ #include <linux/bpf.h> #include <linux/rcupdate.h> +#include <linux/rcupdate_trace.h> #include <linux/random.h> #include <linux/smp.h> #include <linux/topology.h> @@ -24,12 +25,13 @@ * * Different map implementations will rely on rcu in map methods * lookup/update/delete, therefore eBPF programs must run under rcu lock - * if program is allowed to access maps, so check rcu_read_lock_held in - * all three functions. + * if program is allowed to access maps, so check rcu_read_lock_held() or + * rcu_read_lock_trace_held() in all three functions. */ BPF_CALL_2(bpf_map_lookup_elem, struct bpf_map *, map, void *, key) { - WARN_ON_ONCE(!rcu_read_lock_held() && !rcu_read_lock_bh_held()); + WARN_ON_ONCE(!rcu_read_lock_held() && !rcu_read_lock_trace_held() && + !rcu_read_lock_bh_held()); return (unsigned long) map->ops->map_lookup_elem(map, key); } @@ -45,7 +47,8 @@ const struct bpf_func_proto bpf_map_lookup_elem_proto = { BPF_CALL_4(bpf_map_update_elem, struct bpf_map *, map, void *, key, void *, value, u64, flags) { - WARN_ON_ONCE(!rcu_read_lock_held() && !rcu_read_lock_bh_held()); + WARN_ON_ONCE(!rcu_read_lock_held() && !rcu_read_lock_trace_held() && + !rcu_read_lock_bh_held()); return map->ops->map_update_elem(map, key, value, flags); } @@ -62,7 +65,8 @@ const struct bpf_func_proto bpf_map_update_elem_proto = { BPF_CALL_2(bpf_map_delete_elem, struct bpf_map *, map, void *, key) { - WARN_ON_ONCE(!rcu_read_lock_held() && !rcu_read_lock_bh_held()); + WARN_ON_ONCE(!rcu_read_lock_held() && !rcu_read_lock_trace_held() && + !rcu_read_lock_bh_held()); return map->ops->map_delete_elem(map, key); } |