Commit a5e04318 authored Feb 04, 2019 by Ursula Braun Committed by David S. Miller Feb 04, 2019

net/smc: delete rkey first before switching to unused



Once RMBs are flagged as unused they are candidates for reuse.
Thus the LLC DELETE RKEY operaton should be made before flagging
the RMB as unused.

Fixes: c7674c00 ("net/smc: unregister rkeys of unused buffer")
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent b8649efa

net/smc/smc_core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -302,13 +302,13 @@ static void smc_buf_unuse(struct smc_connection *conn,
		conn->sndbuf_desc->used = 0;
		if (conn->rmb_desc) {
		if (!conn->rmb_desc->regerr) {
		conn->rmb_desc->used = 0;
		if (!lgr->is_smcd) {
		/* unregister rmb with peer */
		smc_llc_do_delete_rkey(
		&lgr->lnk[SMC_SINGLE_LINK],
		conn->rmb_desc);
		}
		conn->rmb_desc->used = 0;
		} else {
		/* buf registration failed, reuse not possible */
		write_lock_bh(&lgr->rmbs_lock);