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RDMA/rxe: Move mr cleanup code to rxe_mr_cleanup()
author
Bob Pearson
<rpearsonhpe@gmail.com>
Thu, 21 Apr 2022 01:40:38 +0000
(20:40 -0500)
committer
Jason Gunthorpe
<jgg@nvidia.com>
Mon, 9 May 2022 12:03:45 +0000
(09:03 -0300)
Move the code which tears down an mr to rxe_mr_cleanup to allow operations
holding a reference to the mr to complete.
Link:
https://lore.kernel.org/r/20220421014042.26985-6-rpearsonhpe@gmail.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
drivers/infiniband/sw/rxe/rxe_mr.c
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diff --git
a/drivers/infiniband/sw/rxe/rxe_mr.c
b/drivers/infiniband/sw/rxe/rxe_mr.c
index
60a31b7
..
fc3942e
100644
(file)
--- a/
drivers/infiniband/sw/rxe/rxe_mr.c
+++ b/
drivers/infiniband/sw/rxe/rxe_mr.c
@@
-683,14
+683,10
@@
int rxe_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata)
{
struct rxe_mr *mr = to_rmr(ibmr);
- if (atomic_read(&mr->num_mw) > 0) {
- pr_warn("%s: Attempt to deregister an MR while bound to MWs\n",
- __func__);
+ /* See IBA 10.6.7.2.6 */
+ if (atomic_read(&mr->num_mw) > 0)
return -EINVAL;
- }
- mr->state = RXE_MR_STATE_INVALID;
- rxe_put(mr_pd(mr));
rxe_put(mr);
return 0;
@@
-700,6
+696,8
@@
void rxe_mr_cleanup(struct rxe_pool_elem *elem)
{
struct rxe_mr *mr = container_of(elem, typeof(*mr), elem);
+ rxe_put(mr_pd(mr));
+
ib_umem_release(mr->umem);
if (mr->cur_map_set)