* the OS/400 partition.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/major.h>
#include <linux/blkdev.h>
#include <linux/cdrom.h>
#include <linux/module.h>
#include <linux/completion.h>
#include <linux/proc_fs.h>
+#include <linux/mutex.h>
#include <linux/seq_file.h>
#include <linux/scatterlist.h>
#define VIOCD_VERS "1.06"
-#define VIOCD_KERN_WARNING KERN_WARNING "viocd: "
-#define VIOCD_KERN_INFO KERN_INFO "viocd: "
-
/*
* Should probably make this a module parameter....sigh
*/
#define VIOCD_MAX_CD HVMAXARCHITECTEDVIRTUALCDROMS
+static DEFINE_MUTEX(viocd_mutex);
static const struct vio_error_entry viocd_err_table[] = {
{0x0201, EINVAL, "Invalid Range"},
{0x0202, EINVAL, "Invalid Token"},
static int viocd_blk_open(struct block_device *bdev, fmode_t mode)
{
struct disk_info *di = bdev->bd_disk->private_data;
- return cdrom_open(&di->viocd_info, bdev, mode);
+ int ret;
+
+ mutex_lock(&viocd_mutex);
+ ret = cdrom_open(&di->viocd_info, bdev, mode);
+ mutex_unlock(&viocd_mutex);
+
+ return ret;
}
static int viocd_blk_release(struct gendisk *disk, fmode_t mode)
{
struct disk_info *di = disk->private_data;
+ mutex_lock(&viocd_mutex);
cdrom_release(&di->viocd_info, mode);
+ mutex_unlock(&viocd_mutex);
return 0;
}
unsigned cmd, unsigned long arg)
{
struct disk_info *di = bdev->bd_disk->private_data;
- return cdrom_ioctl(&di->viocd_info, bdev, mode, cmd, arg);
+ int ret;
+
+ mutex_lock(&viocd_mutex);
+ ret = cdrom_ioctl(&di->viocd_info, bdev, mode, cmd, arg);
+ mutex_unlock(&viocd_mutex);
+
+ return ret;
}
static int viocd_blk_media_changed(struct gendisk *disk)
.owner = THIS_MODULE,
.open = viocd_blk_open,
.release = viocd_blk_release,
- .locked_ioctl = viocd_blk_ioctl,
+ .ioctl = viocd_blk_ioctl,
.media_changed = viocd_blk_media_changed,
};
(u64)&we, VIOVERSION << 16, ((u64)device_no << 48),
0, 0, 0);
if (hvrc != 0) {
- printk(VIOCD_KERN_WARNING
- "bad rc on HvCallEvent_signalLpEventFast %d\n",
- (int)hvrc);
+ pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
+ (int)hvrc);
return -EIO;
}
if (we.rc) {
const struct vio_error_entry *err =
vio_lookup_rc(viocd_err_table, we.sub_result);
- printk(VIOCD_KERN_WARNING "bad rc %d:0x%04X on open: %s\n",
- we.rc, we.sub_result, err->msg);
+ pr_warning("bad rc %d:0x%04X on open: %s\n",
+ we.rc, we.sub_result, err->msg);
return -err->errno;
}
viopath_targetinst(viopath_hostLp), 0,
VIOVERSION << 16, ((u64)device_no << 48), 0, 0, 0);
if (hvrc != 0)
- printk(VIOCD_KERN_WARNING
- "bad rc on HvCallEvent_signalLpEventFast %d\n",
- (int)hvrc);
+ pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
+ (int)hvrc);
}
/* Send a read or write request to OS/400 */
sg_init_table(&sg, 1);
if (blk_rq_map_sg(req->q, req, &sg) == 0) {
- printk(VIOCD_KERN_WARNING
- "error setting up scatter/gather list\n");
+ pr_warning("error setting up scatter/gather list\n");
return -1;
}
if (dma_map_sg(diskinfo->dev, &sg, 1, direction) == 0) {
- printk(VIOCD_KERN_WARNING "error allocating sg tce\n");
+ pr_warning("error allocating sg tce\n");
return -1;
}
dmaaddr = sg_dma_address(&sg);
((u64)DEVICE_NR(diskinfo) << 48) | dmaaddr,
(u64)blk_rq_pos(req) * 512, len, 0);
if (hvrc != HvLpEvent_Rc_Good) {
- printk(VIOCD_KERN_WARNING "hv error on op %d\n", (int)hvrc);
+ pr_warning("hv error on op %d\n", (int)hvrc);
return -1;
}
struct request *req;
while ((rwreq == 0) && ((req = blk_fetch_request(q)) != NULL)) {
- if (!blk_fs_request(req))
+ if (req->cmd_type != REQ_TYPE_FS)
__blk_end_request_all(req, -EIO);
else if (send_request(req) < 0) {
- printk(VIOCD_KERN_WARNING
- "unable to send message to OS/400!");
+ pr_warning("unable to send message to OS/400!\n");
__blk_end_request_all(req, -EIO);
} else
rwreq++;
(u64)&we, VIOVERSION << 16, ((u64)device_no << 48),
0, 0, 0);
if (hvrc != 0) {
- printk(VIOCD_KERN_WARNING "bad rc on HvCallEvent_signalLpEventFast %d\n",
- (int)hvrc);
+ pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
+ (int)hvrc);
return -EIO;
}
if (we.rc) {
const struct vio_error_entry *err =
vio_lookup_rc(viocd_err_table, we.sub_result);
- printk(VIOCD_KERN_WARNING
- "bad rc %d:0x%04X on check_change: %s; Assuming no change\n",
- we.rc, we.sub_result, err->msg);
+ pr_warning("bad rc %d:0x%04X on check_change: %s; Assuming no change\n",
+ we.rc, we.sub_result, err->msg);
return 0;
}
(u64)&we, VIOVERSION << 16,
(device_no << 48) | (flags << 32), 0, 0, 0);
if (hvrc != 0) {
- printk(VIOCD_KERN_WARNING "bad rc on HvCallEvent_signalLpEventFast %d\n",
- (int)hvrc);
+ pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
+ (int)hvrc);
return -EIO;
}
return;
/* First, we should NEVER get an int here...only acks */
if (hvlpevent_is_int(event)) {
- printk(VIOCD_KERN_WARNING
- "Yikes! got an int in viocd event handler!\n");
+ pr_warning("Yikes! got an int in viocd event handler!\n");
if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
const struct vio_error_entry *err =
vio_lookup_rc(viocd_err_table,
bevent->sub_result);
- printk(VIOCD_KERN_WARNING "request %p failed "
- "with rc %d:0x%04X: %s\n",
- req, event->xRc,
- bevent->sub_result, err->msg);
+ pr_warning("request %p failed with rc %d:0x%04X: %s\n",
+ req, event->xRc,
+ bevent->sub_result, err->msg);
__blk_end_request_all(req, -EIO);
} else
__blk_end_request_all(req, 0);
break;
default:
- printk(VIOCD_KERN_WARNING
- "message with invalid subtype %0x04X!\n",
- event->xSubtype & VIOMINOR_SUBTYPE_MASK);
+ pr_warning("message with invalid subtype %0x04X!\n",
+ event->xSubtype & VIOMINOR_SUBTYPE_MASK);
if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
sprintf(c->name, VIOCD_DEVICE "%c", 'a' + deviceno);
if (register_cdrom(c) != 0) {
- printk(VIOCD_KERN_WARNING "Cannot register viocd CD-ROM %s!\n",
- c->name);
+ pr_warning("Cannot register viocd CD-ROM %s!\n", c->name);
goto out;
}
- printk(VIOCD_KERN_INFO "cd %s is iSeries resource %10.10s "
- "type %4.4s, model %3.3s\n",
- c->name, d->rsrcname, d->type, d->model);
+ pr_info("cd %s is iSeries resource %10.10s type %4.4s, model %3.3s\n",
+ c->name, d->rsrcname, d->type, d->model);
q = blk_init_queue(do_viocd_request, &viocd_reqlock);
if (q == NULL) {
- printk(VIOCD_KERN_WARNING "Cannot allocate queue for %s!\n",
- c->name);
+ pr_warning("Cannot allocate queue for %s!\n", c->name);
goto out_unregister_cdrom;
}
gendisk = alloc_disk(1);
if (gendisk == NULL) {
- printk(VIOCD_KERN_WARNING "Cannot create gendisk for %s!\n",
- c->name);
+ pr_warning("Cannot create gendisk for %s!\n", c->name);
goto out_cleanup_queue;
}
gendisk->major = VIOCD_MAJOR;
return -ENODEV;
}
- printk(VIOCD_KERN_INFO "vers " VIOCD_VERS ", hosting partition %d\n",
- viopath_hostLp);
+ pr_info("vers " VIOCD_VERS ", hosting partition %d\n", viopath_hostLp);
if (register_blkdev(VIOCD_MAJOR, VIOCD_DEVICE) != 0) {
- printk(VIOCD_KERN_WARNING "Unable to get major %d for %s\n",
- VIOCD_MAJOR, VIOCD_DEVICE);
+ pr_warning("Unable to get major %d for %s\n",
+ VIOCD_MAJOR, VIOCD_DEVICE);
return -EIO;
}
ret = viopath_open(viopath_hostLp, viomajorsubtype_cdio,
MAX_CD_REQ + 2);
if (ret) {
- printk(VIOCD_KERN_WARNING
- "error opening path to host partition %d\n",
- viopath_hostLp);
+ pr_warning("error opening path to host partition %d\n",
+ viopath_hostLp);
goto out_unregister;
}
git://bbs.cooldavid.org / net-next-2.6.git / blobdiff