[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: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 80cbcdc..c1bb740 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -2284,7 +2284,8 @@
}
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 @@
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*));