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authorDavid S. Miller <davem@davemloft.net>2020-07-20 17:52:25 -0700
committerDavid S. Miller <davem@davemloft.net>2020-07-20 17:52:25 -0700
commitd49e2c9e54ddc072fe38dcd838a78067757b13c8 (patch)
tree32429edd15a4550a790a468fd039834d2454f519
parent639f181f0ee20d3249dbc55f740f0167267180f0 (diff)
parenta9e445029570ab691a44389d68b9c544338586b5 (diff)
Merge branch 'smc-fixes'
Karsten Graul says: ==================== net/smc: fixes 2020-07-20 Please apply the following patch series for smc to netdev's net tree. Patch 1 fixes a problem with a buffer that is not put back when the connection was killed in the meantime. Patch 2 fixes a wrong behaviour when the maximum dmb buffer count exceeded. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/smc/smc_cdc.c6
-rw-r--r--net/smc/smc_core.c4
2 files changed, 7 insertions, 3 deletions
diff --git a/net/smc/smc_cdc.c b/net/smc/smc_cdc.c
index a47e8855e045..ce468ff62a19 100644
--- a/net/smc/smc_cdc.c
+++ b/net/smc/smc_cdc.c
@@ -66,9 +66,13 @@ int smc_cdc_get_free_slot(struct smc_connection *conn,
rc = smc_wr_tx_get_free_slot(link, smc_cdc_tx_handler, wr_buf,
wr_rdma_buf,
(struct smc_wr_tx_pend_priv **)pend);
- if (conn->killed)
+ if (conn->killed) {
/* abnormal termination */
+ if (!rc)
+ smc_wr_tx_put_slot(link,
+ (struct smc_wr_tx_pend_priv *)pend);
rc = -EPIPE;
+ }
return rc;
}
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index ca3dc6af73af..f82a2e599917 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -444,7 +444,7 @@ static int smc_lgr_create(struct smc_sock *smc, struct smc_init_info *ini)
}
smc->conn.lgr = lgr;
spin_lock_bh(lgr_lock);
- list_add(&lgr->list, lgr_list);
+ list_add_tail(&lgr->list, lgr_list);
spin_unlock_bh(lgr_lock);
return 0;
@@ -1311,7 +1311,7 @@ int smc_conn_create(struct smc_sock *smc, struct smc_init_info *ini)
smcr_lgr_match(lgr, ini->ib_lcl, role, ini->ib_clcqpn)) &&
!lgr->sync_err &&
lgr->vlan_id == ini->vlan_id &&
- (role == SMC_CLNT ||
+ (role == SMC_CLNT || ini->is_smcd ||
lgr->conns_num < SMC_RMBS_PER_LGR_MAX)) {
/* link group found */
ini->cln_first_contact = SMC_REUSE_CONTACT;