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drbd: use get_random_u64() where appropriate #726

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drbd: use get_random_u64() where appropriate #726

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4 changes: 2 additions & 2 deletions drivers/block/drbd/drbd_main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -874,7 +874,7 @@ void drbd_gen_and_send_sync_uuid(struct drbd_peer_device *peer_device)
if (uuid && uuid != UUID_JUST_CREATED)
uuid = uuid + UUID_NEW_BM_OFFSET;
else
get_random_bytes(&uuid, sizeof(u64));
uuid = get_random_u64();
drbd_uuid_set(device, UI_BITMAP, uuid);
drbd_print_uuids(device, "updated sync UUID");
drbd_md_sync(device);
Expand Down Expand Up @@ -3337,7 +3337,7 @@ void drbd_uuid_new_current(struct drbd_device *device) __must_hold(local)
u64 val;
unsigned long long bm_uuid;

get_random_bytes(&val, sizeof(u64));
val = get_random_u64();

spin_lock_irq(&device->ldev->md.uuid_lock);
bm_uuid = device->ldev->md.uuid[UI_BITMAP];
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2 changes: 1 addition & 1 deletion drivers/block/drbd/drbd_nl.c
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Expand Up @@ -3173,7 +3173,7 @@ int drbd_adm_resume_io(struct sk_buff *skb, struct genl_info *info)
* matching real data uuid exists).
*/
u64 val;
get_random_bytes(&val, sizeof(u64));
val = get_random_u64();
drbd_set_ed_uuid(device, val);
drbd_warn(device, "Resumed without access to data; please tear down before attempting to re-configure.\n");
}
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