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Commit 5bff9e85 authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Nicholas Bellinger
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target/rd: simplify the page/offset computation 



Breakout rd_MEMCPY_do_task() usage of do_div() to tmp value during
rd_request->rd_page assignment.

Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent 6f214755

drivers/target/target_core_rd.c

+4 −6
Original line number Diff line number Diff line
@@ -583,14 +583,12 @@ static int rd_MEMCPY_do_task(struct se_task *task) 
{

	struct se_device *dev = task->task_se_cmd->se_dev;

	struct rd_request *req = RD_REQ(task);

	unsigned long long lba;

	u64 tmp;

	int ret;



	req->rd_page = (task->task_lba * dev->se_sub_dev->se_dev_attrib.block_size) / PAGE_SIZE;

	lba = task->task_lba;

	req->rd_offset = (do_div(lba,

			  (PAGE_SIZE / dev->se_sub_dev->se_dev_attrib.block_size))) *

			   dev->se_sub_dev->se_dev_attrib.block_size;

	tmp = task->task_lba * dev->se_sub_dev->se_dev_attrib.block_size;

	req->rd_offset = do_div(tmp, PAGE_SIZE);

	req->rd_page = tmp;

	req->rd_size = task->task_size;



	if (task->task_data_direction == DMA_FROM_DEVICE)