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block: use jiffies conversion functions in scsi_ioctl.c

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Use msecs_to_jiffies() and jiffies_to_msecs() in scsi_ioctl().
Sometimes callers use very large values for e.g. vendor specific media
clear command and calculation can overflow.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Tejun Heo 2007-12-05 21:28:24 +01:00 committed by Jens Axboe
parent c63a119036
commit 24bb8fb99a
1 changed files with 2 additions and 2 deletions
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4
block/scsi_ioctl.c
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@ -230,7 +230,7 @@ static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
rq->cmd_len = hdr->cmd_len; rq->cmd_len = hdr->cmd_len;
rq->cmd_type = REQ_TYPE_BLOCK_PC; rq->cmd_type = REQ_TYPE_BLOCK_PC;
rq->timeout = (hdr->timeout * HZ) / 1000; rq->timeout = msecs_to_jiffies(hdr->timeout);
if (!rq->timeout) if (!rq->timeout)
rq->timeout = q->sg_timeout; rq->timeout = q->sg_timeout;
if (!rq->timeout) if (!rq->timeout)
@ -366,7 +366,7 @@ static int sg_io(struct file *file, struct request_queue *q,
*/ */
blk_execute_rq(q, bd_disk, rq, 0); blk_execute_rq(q, bd_disk, rq, 0);
hdr->duration = ((jiffies - start_time) * 1000) / HZ; hdr->duration = jiffies_to_msecs(jiffies - start_time);
return blk_complete_sghdr_rq(rq, hdr, bio); return blk_complete_sghdr_rq(rq, hdr, bio);
out: out: