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Commit cfeb2cf9 authored by Mike Christie's avatar Mike Christie Committed by James Bottomley
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[SCSI] libiscsi: change login data buffer allocation 



This modifies the login buffer allocation to use __get_free_pages.
It will allow drivers that want to send this data with zero copy
operations to easily line things up on page boundaries.

Signed-off-by: default avatarMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent e2bac7c5

drivers/scsi/libiscsi.c

+4 −2
Original line number Diff line number Diff line
@@ -2284,7 +2284,8 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, int dd_size, 
	}

	spin_unlock_bh(&session->lock);



	data = kmalloc(ISCSI_DEF_MAX_RECV_SEG_LEN, GFP_KERNEL);

	data = (char *) __get_free_pages(GFP_KERNEL,

					 get_order(ISCSI_DEF_MAX_RECV_SEG_LEN));

	if (!data)

		goto login_task_data_alloc_fail;

	conn->login_task->data = conn->data = data;
@@ -2355,7 +2356,8 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) 
	iscsi_suspend_tx(conn);



	spin_lock_bh(&session->lock);

	kfree(conn->data);

	free_pages((unsigned long) conn->data,

		   get_order(ISCSI_DEF_MAX_RECV_SEG_LEN));

	kfree(conn->persistent_address);

	__kfifo_put(session->cmdpool.queue, (void*)&conn->login_task,

		    sizeof(void*));