[PATCH 10/10] smb: client: let destroy_mr_list() keep smbdirect_mr_io memory if registered

[Stefan Metzmacher]

Hi Steve,

as already discussed, one additional hunk is needed...

> @@ -2402,6 +2448,9 @@ static int allocate_mr_list(struct smbdirect_socket *sc)
>   			goto kzalloc_mr_failed;
>   		}
>   
> +		kref_init(&mr->kref);
> +		mutex_init(&mr->mutex);
> +
>   		mr->mr = ib_alloc_mr(sc->ib.pd,
>   				     sc->mr_io.type,
>   				     sp->max_frmr_depth);

Here we're missing the following hunk:

@@ -2483,6 +2483,7 @@ static int allocate_mr_list(struct smbdirect_socket *sc)
  kcalloc_sgl_failed:
         ib_dereg_mr(mr->mr);
  ib_alloc_mr_failed:
+       mutex_destroy(&mr->mutex);
         kfree(mr);
  kzalloc_mr_failed:
         destroy_mr_list(sc);

I fixed it in my for-6.18/fs-smb-20251015-v2 branch,
up to commit e4418cd1d5d80a8c24530ac0a41a5451c44f82bf.
git fetch https://git.samba.org/metze/linux/wip.git for-6.18/fs-smb-20251015-v2

The above hunk is the only difference to the current sfrench-cifs-2.6/for-next
(at commit 7949ce089965bd025a8d46dbaa2f5d0a2bd4ec77), I only moved my commits
to the top. So you can just replace 7949ce089965bd025a8d46dbaa2f5d0a2bd4ec77 by
e4418cd1d5d80a8c24530ac0a41a5451c44f82bf.

Thanks!
metze