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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2011-11-25 22:18:45 +0100 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-12-06 06:00:57 +0000 |
| commit | 5bff9e8584fbcdb361dada5a0425724b9e31e608 (patch) | |
| tree | a16f405f1165e03f0bf7a8d6053aa772b8545a5d /drivers/target | |
| parent | 6f21475576dde397cd2580262209d4080fbd5458 (diff) | |
| download | linux-stable-5bff9e8584fbcdb361dada5a0425724b9e31e608.tar.gz linux-stable-5bff9e8584fbcdb361dada5a0425724b9e31e608.tar.bz2 linux-stable-5bff9e8584fbcdb361dada5a0425724b9e31e608.zip | |
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: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_rd.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index 6d8a6881cfff..6119ed5a3311 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -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) |