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authorChristoph Hellwig <hch@infradead.org>2012-07-08 15:58:45 -0400
committerNicholas Bellinger <nab@linux-iscsi.org>2012-07-16 17:35:19 -0700
commitb8b22533fed12dbb9e5a63d414cb1c768d1c28dd (patch)
tree121ce98fd9b96ce9f6c6ee135885d27922e97cc2
parent43381ce8bb14d2536102fe700b43e97da1410169 (diff)
downloadlinux-stericsson-b8b22533fed12dbb9e5a63d414cb1c768d1c28dd.tar.gz
tcm_fc: Offload WRITE I/O backend submission to tpg workqueue
Defer the write processing to the internal to be able to use target_execute_cmd. I'm not even entirely sure the calling code requires this due to the convoluted structure in libfc, but let's be safe for now. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Mark Rustad <mark.d.rustad@intel.com> Cc: Kiran Patil <Kiran.patil@intel.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
-rw-r--r--drivers/target/tcm_fc/tfc_io.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/target/tcm_fc/tfc_io.c b/drivers/target/tcm_fc/tfc_io.c
index 071a505f98fc..ad36ede1a1ea 100644
--- a/drivers/target/tcm_fc/tfc_io.c
+++ b/drivers/target/tcm_fc/tfc_io.c
@@ -183,6 +183,13 @@ int ft_queue_data_in(struct se_cmd *se_cmd)
return ft_queue_status(se_cmd);
}
+static void ft_execute_work(struct work_struct *work)
+{
+ struct ft_cmd *cmd = container_of(work, struct ft_cmd, work);
+
+ target_execute_cmd(&cmd->se_cmd);
+}
+
/*
* Receive write data frame.
*/
@@ -307,8 +314,10 @@ void ft_recv_write_data(struct ft_cmd *cmd, struct fc_frame *fp)
cmd->write_data_len += tlen;
}
last_frame:
- if (cmd->write_data_len == se_cmd->data_length)
- transport_generic_handle_data(se_cmd);
+ if (cmd->write_data_len == se_cmd->data_length) {
+ INIT_WORK(&cmd->work, ft_execute_work);
+ queue_work(cmd->sess->tport->tpg->workqueue, &cmd->work);
+ }
drop:
fc_frame_free(fp);
}