The patch looks fine to me. Thanks, Karen -----Original Message----- From: Thadeu Lima de Souza Cascardo [mailto:cascardo@xxxxxxxxxxxxxxxxxx] Sent: Wednesday, December 14, 2011 7:46 AM To: linux-scsi@xxxxxxxxxxxxxxx Cc: netdev@xxxxxxxxxxxxxxx; Karen Xie; michaelc@xxxxxxxxxxx; davem@xxxxxxxxxxxxx; JBottomley@xxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Thadeu Lima de Souza Cascardo Subject: [PATCH] libcxgbi: do not print a message when memory allocation fails In alloc_pdu, libcxgbi tries to allocate a skb with GFP_ATOMIC, which may potentially fail. When it happens, the current code prints a warning message. When the system is under IO stress, this failure may happen lots of times and it usually scares users. Instead of printing the warning message, the code now increases the tx_dropped statistics for the ethernet interface wich is doing the iscsi task. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@xxxxxxxxxxxxxxxxxx> --- drivers/scsi/cxgbi/libcxgbi.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c index c10f74a..3422bc2 100644 --- a/drivers/scsi/cxgbi/libcxgbi.c +++ b/drivers/scsi/cxgbi/libcxgbi.c @@ -1862,8 +1862,9 @@ int cxgbi_conn_alloc_pdu(struct iscsi_task *task, u8 opcode) tdata->skb = alloc_skb(cdev->skb_tx_rsvd + headroom, GFP_ATOMIC); if (!tdata->skb) { - pr_warn("alloc skb %u+%u, opcode 0x%x failed.\n", - cdev->skb_tx_rsvd, headroom, opcode); + struct cxgbi_sock *csk = cconn->cep->csk; + struct net_device *ndev = cdev->ports[csk->port_id]; + ndev->stats.tx_dropped++; return -ENOMEM; } -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
