On Tue, Jan 07, 2020 at 11:05:08PM +0530, madhuparnabhowmik04@xxxxxxxxx wrote:
> From: Madhuparna Bhowmik <madhuparnabhowmik04@xxxxxxxxx>
>
> list_for_each_entry_rcu has built-in RCU and lock checking.
> Pass cond argument to list_for_each_entry_rcu.
>
> Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik04@xxxxxxxxx>
> drivers/infiniband/hw/hfi1/verbs.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c
> index 089e201d7550..cab2ff185240 100644
> +++ b/drivers/infiniband/hw/hfi1/verbs.c
> @@ -515,7 +515,8 @@ static inline void hfi1_handle_packet(struct hfi1_packet *packet,
> opa_get_lid(packet->dlid, 9B));
> if (!mcast)
> goto drop;
> - list_for_each_entry_rcu(p, &mcast->qp_list, list) {
> + list_for_each_entry_rcu(p, &mcast->qp_list, list
> + lock_is_held(&(ibp->rvp.lock).dep_map)) {
This is missing a ',' and isn't indented properly. Does it even
compile?
The idea seems sound though.
Jason
