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net/smc: delete rkey first before switching to unused

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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: c7674c001b ("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>
This commit is contained in:
Ursula Braun 2019-02-04 13:44:46 +01:00 committed by David S. Miller
parent b8649efad8
commit a5e04318c8
1 changed files with 1 additions and 1 deletions
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2
net/smc/smc_core.c
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@ -302,13 +302,13 @@ static void smc_buf_unuse(struct smc_connection *conn,
conn->sndbuf_desc->used = 0; conn->sndbuf_desc->used = 0;
if (conn->rmb_desc) { if (conn->rmb_desc) {
if (!conn->rmb_desc->regerr) { if (!conn->rmb_desc->regerr) {
conn->rmb_desc->used = 0;
if (!lgr->is_smcd) { if (!lgr->is_smcd) {
/* unregister rmb with peer */ /* unregister rmb with peer */
smc_llc_do_delete_rkey( smc_llc_do_delete_rkey(
&lgr->lnk[SMC_SINGLE_LINK], &lgr->lnk[SMC_SINGLE_LINK],
conn->rmb_desc); conn->rmb_desc);
} }
conn->rmb_desc->used = 0;
} else { } else {
/* buf registration failed, reuse not possible */ /* buf registration failed, reuse not possible */
write_lock_bh(&lgr->rmbs_lock); write_lock_bh(&lgr->rmbs_lock);