/*
- * bsg.c - block layer implementation of the sg v3 interface
+ * bsg.c - block layer implementation of the sg v4 interface
*
* Copyright (C) 2004 Jens Axboe <axboe@suse.de> SUSE Labs
* Copyright (C) 2004 Peter M. Jones <pjones@redhat.com>
* archive for more details.
*
*/
-/*
- * TODO
- * - Should this get merged, block/scsi_ioctl.c will be migrated into
- * this file. To keep maintenance down, it's easier to have them
- * seperated right now.
- *
- */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/file.h>
#define BSG_VERSION "0.4"
struct bsg_device {
- request_queue_t *queue;
+ struct request_queue *queue;
spinlock_t lock;
struct list_head busy_list;
struct list_head done_list;
struct bio *bidi_bio;
int err;
struct sg_io_v4 hdr;
- struct sg_io_v4 __user *uhdr;
char sense[SCSI_SENSE_BUFFERSIZE];
};
return ret;
}
-static int blk_fill_sgv4_hdr_rq(request_queue_t *q, struct request *rq,
+static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq,
struct sg_io_v4 *hdr, int has_write_perm)
{
memset(rq->cmd, 0, BLK_MAX_CDB); /* ATAPI hates garbage after CDB */
* Check if sg_io_v4 from user is allowed and valid
*/
static int
-bsg_validate_sgv4_hdr(request_queue_t *q, struct sg_io_v4 *hdr, int *rw)
+bsg_validate_sgv4_hdr(struct request_queue *q, struct sg_io_v4 *hdr, int *rw)
{
int ret = 0;
static struct request *
bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr)
{
- request_queue_t *q = bd->queue;
+ struct request_queue *q = bd->queue;
struct request *rq, *next_rq = NULL;
int ret, rw;
unsigned int dxfer_len;
* do final setup of a 'bc' and submit the matching 'rq' to the block
* layer for io
*/
-static void bsg_add_command(struct bsg_device *bd, request_queue_t *q,
+static void bsg_add_command(struct bsg_device *bd, struct request_queue *q,
struct bsg_command *bc, struct request *rq)
{
rq->sense = bc->sense;
hdr->info = 0;
if (hdr->device_status || hdr->transport_status || hdr->driver_status)
hdr->info |= SG_INFO_CHECK;
- hdr->din_resid = rq->data_len;
hdr->response_len = 0;
if (rq->sense_len && hdr->response) {
}
if (rq->next_rq) {
+ hdr->dout_resid = rq->data_len;
+ hdr->din_resid = rq->next_rq->data_len;
blk_rq_unmap_user(bidi_bio);
blk_put_request(rq->next_rq);
- }
+ } else if (rq_data_dir(rq) == READ)
+ hdr->din_resid = rq->data_len;
+ else
+ hdr->dout_resid = rq->data_len;
blk_rq_unmap_user(bio);
blk_put_request(rq);
bc = NULL;
ret = 0;
while (nr_commands) {
- request_queue_t *q = bd->queue;
+ struct request_queue *q = bd->queue;
bc = bsg_alloc_command(bd);
if (IS_ERR(bc)) {
break;
}
- bc->uhdr = (struct sg_io_v4 __user *) buf;
if (copy_from_user(&bc->hdr, buf, sizeof(bc->hdr))) {
ret = -EFAULT;
break;
}
}
-static struct file_operations bsg_fops = {
+static const struct file_operations bsg_fops = {
.read = bsg_read,
.write = bsg_write,
.poll = bsg_poll,
}
EXPORT_SYMBOL_GPL(bsg_register_queue);
-static struct cdev bsg_cdev = {
- .kobj = {.name = "bsg", },
- .owner = THIS_MODULE,
-};
+static struct cdev bsg_cdev;
static int __init bsg_init(void)
{