When analyzed memory usage of SMC, we found that the size of struct
smc_link_group is 16048 bytes, which is too big for a busy machine to
allocate contiguous memory. Using kvzalloc instead that falls back to
vmalloc if there has not enough contiguous memory.
Signed-off-by: Tony Lu <tonylu@xxxxxxxxxxxxxxxxx>
---
net/smc/smc_core.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 8935ef4811b0..a5024b098540 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -828,7 +828,7 @@ static int smc_lgr_create(struct smc_sock *smc, struct smc_init_info *ini)
}
}
- lgr = kzalloc(sizeof(*lgr), GFP_KERNEL);
+ lgr = kvzalloc(sizeof(*lgr), GFP_KERNEL);
if (!lgr) {
rc = SMC_CLC_DECL_MEM;
goto ism_put_vlan;
@@ -914,7 +914,7 @@ static int smc_lgr_create(struct smc_sock *smc, struct smc_init_info *ini)
free_wq:
destroy_workqueue(lgr->tx_wq);
free_lgr:
- kfree(lgr);
+ kvfree(lgr);
ism_put_vlan:
if (ini->is_smcd && ini->vlan_id)
smc_ism_put_vlan(ini->ism_dev[ini->ism_selected], ini->vlan_id);
@@ -1317,7 +1317,7 @@ static void smc_lgr_free(struct smc_link_group *lgr)
if (!atomic_dec_return(&lgr_cnt))
wake_up(&lgrs_deleted);
}
- kfree(lgr);
+ kvfree(lgr);
}
static void smc_sk_wake_ups(struct smc_sock *smc)
--
2.32.0.3.g01195cf9f
