xprtrdma: Release orphaned MRs immediately
Instead of leaving orphaned MRs to be released when the transport
is destroyed, release them immediately. The MR free list can now be
replenished if it becomes exhausted.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index e77776b..f4c06c8 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -177,15 +177,22 @@
rc = __frwr_reset_mr(ia, mw);
ib_dma_unmap_sg(ia->ri_device, mw->mw_sg, mw->mw_nents, mw->mw_dir);
- if (rc) {
- pr_err("rpcrdma: FRMR reset status %d, %p orphaned\n",
- rc, mw);
- r_xprt->rx_stats.mrs_orphaned++;
- return;
- }
+ if (rc)
+ goto out_release;
rpcrdma_put_mw(r_xprt, mw);
r_xprt->rx_stats.mrs_recovered++;
+ return;
+
+out_release:
+ pr_err("rpcrdma: FRMR reset failed %d, %p release\n", rc, mw);
+ r_xprt->rx_stats.mrs_orphaned++;
+
+ spin_lock(&r_xprt->rx_buf.rb_mwlock);
+ list_del(&mw->mw_all);
+ spin_unlock(&r_xprt->rx_buf.rb_mwlock);
+
+ frwr_op_release_mr(mw);
}
static int