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-rw-r--r--drivers/block/ub.c35
1 files changed, 28 insertions, 7 deletions
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index 0536b5b29adc..c48e14878582 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -28,6 +28,7 @@
#include <linux/timer.h>
#include <linux/scatterlist.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <scsi/scsi.h>
#define DRV_NAME "ub"
@@ -648,7 +649,7 @@ static int ub_request_fn_1(struct ub_lun *lun, struct request *rq)
return 0;
}
- if (lun->changed && !blk_pc_request(rq)) {
+ if (lun->changed && rq->cmd_type != REQ_TYPE_BLOCK_PC) {
blk_start_request(rq);
ub_end_rq(rq, SAM_STAT_CHECK_CONDITION);
return 0;
@@ -684,7 +685,7 @@ static int ub_request_fn_1(struct ub_lun *lun, struct request *rq)
}
urq->nsg = n_elem;
- if (blk_pc_request(rq)) {
+ if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {
ub_cmd_build_packet(sc, lun, cmd, urq);
} else {
ub_cmd_build_block(sc, lun, cmd, urq);
@@ -781,7 +782,7 @@ static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
rq = urq->rq;
if (cmd->error == 0) {
- if (blk_pc_request(rq)) {
+ if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {
if (cmd->act_len >= rq->resid_len)
rq->resid_len = 0;
else
@@ -795,7 +796,7 @@ static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
}
}
} else {
- if (blk_pc_request(rq)) {
+ if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {
/* UB_SENSE_SIZE is smaller than SCSI_SENSE_BUFFERSIZE */
memcpy(rq->sense, sc->top_sense, UB_SENSE_SIZE);
rq->sense_len = UB_SENSE_SIZE;
@@ -1710,6 +1711,18 @@ err_open:
return rc;
}
+static int ub_bd_unlocked_open(struct block_device *bdev, fmode_t mode)
+{
+ int ret;
+
+ lock_kernel();
+ ret = ub_bd_open(bdev, mode);
+ unlock_kernel();
+
+ return ret;
+}
+
+
/*
*/
static int ub_bd_release(struct gendisk *disk, fmode_t mode)
@@ -1717,7 +1730,10 @@ static int ub_bd_release(struct gendisk *disk, fmode_t mode)
struct ub_lun *lun = disk->private_data;
struct ub_dev *sc = lun->udev;
+ lock_kernel();
ub_put(sc);
+ unlock_kernel();
+
return 0;
}
@@ -1729,8 +1745,13 @@ static int ub_bd_ioctl(struct block_device *bdev, fmode_t mode,
{
struct gendisk *disk = bdev->bd_disk;
void __user *usermem = (void __user *) arg;
+ int ret;
+
+ lock_kernel();
+ ret = scsi_cmd_ioctl(disk->queue, disk, mode, cmd, usermem);
+ unlock_kernel();
- return scsi_cmd_ioctl(disk->queue, disk, mode, cmd, usermem);
+ return ret;
}
/*
@@ -1792,9 +1813,9 @@ static int ub_bd_media_changed(struct gendisk *disk)
static const struct block_device_operations ub_bd_fops = {
.owner = THIS_MODULE,
- .open = ub_bd_open,
+ .open = ub_bd_unlocked_open,
.release = ub_bd_release,
- .locked_ioctl = ub_bd_ioctl,
+ .ioctl = ub_bd_ioctl,
.media_changed = ub_bd_media_changed,
.revalidate_disk = ub_bd_revalidate,
};
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