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target/tcm_fc: use CPU affinity for responses

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The libfc stack assigns exchange IDs based on the CPU the request
was received on, so we need to send the responses via the same CPU.
Otherwise the send logic gets confuses and responses will be delayed,
causing exchange timeouts on the initiator side.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Cc: stable@vger.kernel.org # 4.5+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Hannes Reinecke 2016-08-22 10:54:11 +02:00 • committed by Nicholas Bellinger
parent 8962a4d29b
commit 1ba0158fa6
1 changed files with 1 additions and 1 deletions
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2
drivers/target/tcm_fc/tfc_cmd.c
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@ -572,7 +572,7 @@ static void ft_send_work(struct work_struct *work)
if (target_submit_cmd(&cmd->se_cmd, cmd->sess->se_sess, fcp->fc_cdb,
&cmd->ft_sense_buffer[0], scsilun_to_int(&fcp->fc_lun),
ntohl(fcp->fc_dl), task_attr, data_dir,
TARGET_SCF_ACK_KREF))
TARGET_SCF_ACK_KREF | TARGET_SCF_USE_CPUID))
goto err;
pr_debug("r_ctl %x target_submit_cmd %p\n", fh->fh_r_ctl, cmd);