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drbd: Rename kvfree_rcu() to kvfree_rcu_mightsleep()

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The kvfree_rcu() macro's single-argument form is deprecated.  Therefore
switch to the new kvfree_rcu_mightsleep() variant. The goal is to
avoid accidental use of the single-argument forms, which can introduce
functionality bugs in atomic contexts and latency bugs in non-atomic
contexts.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Philipp Reisner <philipp.reisner@linbit.com>
Cc: Lars Ellenberg <lars.ellenberg@linbit.com>
Begrudgingly-acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
This commit is contained in:
Uladzislau Rezki (Sony)
2023-02-01 16:08:08 +01:00
committed by Joel Fernandes (Google)
parent fe15c26ee2
commit a77b2109f7
3 changed files with 6 additions and 6 deletions
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6
drivers/block/drbd/drbd_nl.c
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@@ -1615,7 +1615,7 @@ int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info)
drbd_send_sync_param(peer_device);
}
kvfree_rcu(old_disk_conf);
kvfree_rcu_mightsleep(old_disk_conf);
kfree(old_plan);
mod_timer(&device->request_timer, jiffies + HZ);
goto success;
@@ -2446,7 +2446,7 @@ int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info)
mutex_unlock(&connection->resource->conf_update);
mutex_unlock(&connection->data.mutex);
kvfree_rcu(old_net_conf);
kvfree_rcu_mightsleep(old_net_conf);
if (connection->cstate >= C_WF_REPORT_PARAMS) {
struct drbd_peer_device *peer_device;
@@ -2860,7 +2860,7 @@ int drbd_adm_resize(struct sk_buff *skb, struct genl_info *info)
new_disk_conf->disk_size = (sector_t)rs.resize_size;
rcu_assign_pointer(device->ldev->disk_conf, new_disk_conf);
mutex_unlock(&device->resource->conf_update);
kvfree_rcu(old_disk_conf);
kvfree_rcu_mightsleep(old_disk_conf);
new_disk_conf = NULL;
}