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RDMA/rtrs: Require holding rcu_read_lock explicitly

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No functional change. The function get_next_path_rr needs to hold
rcu_read_lock. As such, if no rcu read lock, warnings will pop out.

Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Link: https://lore.kernel.org/r/20230919073727.540207-1-yanjun.zhu@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Zhu Yanjun 2023-09-19 15:37:27 +08:00 committed by Leon Romanovsky
parent 81760bedc6
commit 20a02837fb
1 changed files with 6 additions and 1 deletions
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7
drivers/infiniband/ulp/rtrs/rtrs-clt.c
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@ -775,7 +775,7 @@ rtrs_clt_get_next_path_or_null(struct list_head *head, struct rtrs_clt_path *clt
* Related to @MP_POLICY_RR
*
* Locks:
* rcu_read_lock() must be hold.
* rcu_read_lock() must be held.
*/
static struct rtrs_clt_path *get_next_path_rr(struct path_it *it)
{
@ -783,6 +783,11 @@ static struct rtrs_clt_path *get_next_path_rr(struct path_it *it)
struct rtrs_clt_path *path;
struct rtrs_clt_sess *clt;
/*
* Assert that rcu lock must be held
*/
RCU_LOCKDEP_WARN(!rcu_read_lock_held(), "no rcu read lock held");
clt = it->clt;
/*