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| author | Mike Christie <michaelc@cs.wisc.edu> | 2006-12-01 10:40:55 +0100 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2006-12-01 10:40:55 +0100 |
| commit | 0e75f9063f5c55fb0b0b546a7c356f8ec186825e (patch) | |
| tree | db138f641175403546c2147def4b405f3ff453a8 /drivers | |
| parent | ad2d7225709b11da47e092634cbdf0591829ae9c (diff) | |
| download | linux-stable-0e75f9063f5c55fb0b0b546a7c356f8ec186825e.tar.gz linux-stable-0e75f9063f5c55fb0b0b546a7c356f8ec186825e.tar.bz2 linux-stable-0e75f9063f5c55fb0b0b546a7c356f8ec186825e.zip | |
[PATCH] block: support larger block pc requests
This patch modifies blk_rq_map/unmap_user() and the cdrom and scsi_ioctl.c
users so that it supports requests larger than bio by chaining them together.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/cdrom/cdrom.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 7ea0f48f8fa6..2df5cf4ec743 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -2133,16 +2133,14 @@ static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf, rq->timeout = 60 * HZ; bio = rq->bio; - if (rq->bio) - blk_queue_bounce(q, &rq->bio); - if (blk_execute_rq(q, cdi->disk, rq, 0)) { struct request_sense *s = rq->sense; ret = -EIO; cdi->last_sense = s->sense_key; } - if (blk_rq_unmap_user(bio, len)) + rq->bio = bio; + if (blk_rq_unmap_user(rq)) ret = -EFAULT; if (ret) |