block: move cmdfilter from gendisk to request_queue
cmd_filter works only for the block layer SG_IO with SCSI block
devices. It breaks scsi/sg.c, bsg, and the block layer SG_IO with SCSI
character devices (such as st). We hit a kernel crash with them.
The problem is that cmd_filter code accesses to gendisk (having struct
blk_scsi_cmd_filter) via inode->i_bdev->bd_disk. It works for only
SCSI block device files. With character device files, inode->i_bdev
leads you to struct cdev. inode->i_bdev->bd_disk->blk_scsi_cmd_filter
isn't safe.
SCSI ULDs don't expose gendisk; they keep it private. bsg needs to be
independent on any protocols. We shouldn't change ULDs to expose their
gendisk.
This patch moves struct blk_scsi_cmd_filter from gendisk to
request_queue, a common object, which eveyone can access to.
The user interface doesn't change; users can change the filters via
/sys/block/. gendisk has a pointer to request_queue so the cmd_filter
code accesses to struct blk_scsi_cmd_filter.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/block/blk-core.c b/block/blk-core.c
index 4889eb8..2cba5ef 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -582,6 +582,8 @@
q->sg_reserved_size = INT_MAX;
+ blk_set_cmd_filter_defaults(&q->cmd_filter);
+
/*
* all done
*/
diff --git a/block/bsg.c b/block/bsg.c
index 5a68b09..0aae8d7 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -45,8 +45,6 @@
char name[BUS_ID_SIZE];
int max_queue;
unsigned long flags;
- struct blk_scsi_cmd_filter *cmd_filter;
- mode_t *f_mode;
};
enum {
@@ -174,7 +172,8 @@
}
static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq,
- struct sg_io_v4 *hdr, struct bsg_device *bd)
+ struct sg_io_v4 *hdr, struct bsg_device *bd,
+ int has_write_perm)
{
if (hdr->request_len > BLK_MAX_CDB) {
rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL);
@@ -187,8 +186,7 @@
return -EFAULT;
if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) {
- if (blk_cmd_filter_verify_command(bd->cmd_filter, rq->cmd,
- bd->f_mode))
+ if (blk_verify_command(&q->cmd_filter, rq->cmd, has_write_perm))
return -EPERM;
} else if (!capable(CAP_SYS_RAWIO))
return -EPERM;
@@ -244,7 +242,7 @@
* map sg_io_v4 to a request.
*/
static struct request *
-bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr)
+bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, int has_write_perm)
{
struct request_queue *q = bd->queue;
struct request *rq, *next_rq = NULL;
@@ -266,7 +264,7 @@
rq = blk_get_request(q, rw, GFP_KERNEL);
if (!rq)
return ERR_PTR(-ENOMEM);
- ret = blk_fill_sgv4_hdr_rq(q, rq, hdr, bd);
+ ret = blk_fill_sgv4_hdr_rq(q, rq, hdr, bd, has_write_perm);
if (ret)
goto out;
@@ -568,25 +566,6 @@
set_bit(BSG_F_BLOCK, &bd->flags);
}
-static void bsg_set_cmd_filter(struct bsg_device *bd,
- struct file *file)
-{
- struct inode *inode;
- struct gendisk *disk;
-
- if (!file)
- return;
-
- inode = file->f_dentry->d_inode;
- if (!inode)
- return;
-
- disk = inode->i_bdev->bd_disk;
-
- bd->cmd_filter = &disk->cmd_filter;
- bd->f_mode = &file->f_mode;
-}
-
/*
* Check if the error is a "real" error that we should return.
*/
@@ -608,7 +587,6 @@
dprintk("%s: read %Zd bytes\n", bd->name, count);
bsg_set_block(bd, file);
- bsg_set_cmd_filter(bd, file);
bytes_read = 0;
ret = __bsg_read(buf, count, bd, NULL, &bytes_read);
@@ -621,7 +599,7 @@
}
static int __bsg_write(struct bsg_device *bd, const char __user *buf,
- size_t count, ssize_t *bytes_written)
+ size_t count, ssize_t *bytes_written, int has_write_perm)
{
struct bsg_command *bc;
struct request *rq;
@@ -652,7 +630,7 @@
/*
* get a request, fill in the blanks, and add to request queue
*/
- rq = bsg_map_hdr(bd, &bc->hdr);
+ rq = bsg_map_hdr(bd, &bc->hdr, has_write_perm);
if (IS_ERR(rq)) {
ret = PTR_ERR(rq);
rq = NULL;
@@ -683,10 +661,11 @@
dprintk("%s: write %Zd bytes\n", bd->name, count);
bsg_set_block(bd, file);
- bsg_set_cmd_filter(bd, file);
bytes_written = 0;
- ret = __bsg_write(bd, buf, count, &bytes_written);
+ ret = __bsg_write(bd, buf, count, &bytes_written,
+ file->f_mode & FMODE_WRITE);
+
*ppos = bytes_written;
/*
@@ -792,7 +771,6 @@
bd->queue = rq;
bsg_set_block(bd, file);
- bsg_set_cmd_filter(bd, file);
atomic_set(&bd->ref_count, 1);
mutex_lock(&bsg_mutex);
@@ -943,7 +921,7 @@
if (copy_from_user(&hdr, uarg, sizeof(hdr)))
return -EFAULT;
- rq = bsg_map_hdr(bd, &hdr);
+ rq = bsg_map_hdr(bd, &hdr, file->f_mode & FMODE_WRITE);
if (IS_ERR(rq))
return PTR_ERR(rq);
diff --git a/block/cmd-filter.c b/block/cmd-filter.c
index eec4404..c705c33 100644
--- a/block/cmd-filter.c
+++ b/block/cmd-filter.c
@@ -27,8 +27,8 @@
#include <scsi/scsi.h>
#include <linux/cdrom.h>
-int blk_cmd_filter_verify_command(struct blk_scsi_cmd_filter *filter,
- unsigned char *cmd, mode_t *f_mode)
+int blk_verify_command(struct blk_scsi_cmd_filter *filter,
+ unsigned char *cmd, int has_write_perm)
{
/* root can do any command. */
if (capable(CAP_SYS_RAWIO))
@@ -43,30 +43,11 @@
return 0;
/* Write-safe commands require a writable open */
- if (test_bit(cmd[0], filter->write_ok) && (*f_mode & FMODE_WRITE))
+ if (test_bit(cmd[0], filter->write_ok) && has_write_perm)
return 0;
return -EPERM;
}
-EXPORT_SYMBOL(blk_cmd_filter_verify_command);
-
-int blk_verify_command(struct file *file, unsigned char *cmd)
-{
- struct gendisk *disk;
- struct inode *inode;
-
- if (!file)
- return -EINVAL;
-
- inode = file->f_dentry->d_inode;
- if (!inode)
- return -EINVAL;
-
- disk = inode->i_bdev->bd_disk;
-
- return blk_cmd_filter_verify_command(&disk->cmd_filter,
- cmd, &file->f_mode);
-}
EXPORT_SYMBOL(blk_verify_command);
/* and now, the sysfs stuff */
@@ -219,114 +200,27 @@
.default_attrs = default_attrs,
};
-#ifndef MAINTENANCE_IN_CMD
-#define MAINTENANCE_IN_CMD 0xa3
-#endif
-
-static void rcf_set_defaults(struct blk_scsi_cmd_filter *filter)
-{
- /* Basic read-only commands */
- __set_bit(TEST_UNIT_READY, filter->read_ok);
- __set_bit(REQUEST_SENSE, filter->read_ok);
- __set_bit(READ_6, filter->read_ok);
- __set_bit(READ_10, filter->read_ok);
- __set_bit(READ_12, filter->read_ok);
- __set_bit(READ_16, filter->read_ok);
- __set_bit(READ_BUFFER, filter->read_ok);
- __set_bit(READ_DEFECT_DATA, filter->read_ok);
- __set_bit(READ_CAPACITY, filter->read_ok);
- __set_bit(READ_LONG, filter->read_ok);
- __set_bit(INQUIRY, filter->read_ok);
- __set_bit(MODE_SENSE, filter->read_ok);
- __set_bit(MODE_SENSE_10, filter->read_ok);
- __set_bit(LOG_SENSE, filter->read_ok);
- __set_bit(START_STOP, filter->read_ok);
- __set_bit(GPCMD_VERIFY_10, filter->read_ok);
- __set_bit(VERIFY_16, filter->read_ok);
- __set_bit(REPORT_LUNS, filter->read_ok);
- __set_bit(SERVICE_ACTION_IN, filter->read_ok);
- __set_bit(RECEIVE_DIAGNOSTIC, filter->read_ok);
- __set_bit(MAINTENANCE_IN_CMD, filter->read_ok);
- __set_bit(GPCMD_READ_BUFFER_CAPACITY, filter->read_ok);
-
- /* Audio CD commands */
- __set_bit(GPCMD_PLAY_CD, filter->read_ok);
- __set_bit(GPCMD_PLAY_AUDIO_10, filter->read_ok);
- __set_bit(GPCMD_PLAY_AUDIO_MSF, filter->read_ok);
- __set_bit(GPCMD_PLAY_AUDIO_TI, filter->read_ok);
- __set_bit(GPCMD_PAUSE_RESUME, filter->read_ok);
-
- /* CD/DVD data reading */
- __set_bit(GPCMD_READ_CD, filter->read_ok);
- __set_bit(GPCMD_READ_CD_MSF, filter->read_ok);
- __set_bit(GPCMD_READ_DISC_INFO, filter->read_ok);
- __set_bit(GPCMD_READ_CDVD_CAPACITY, filter->read_ok);
- __set_bit(GPCMD_READ_DVD_STRUCTURE, filter->read_ok);
- __set_bit(GPCMD_READ_HEADER, filter->read_ok);
- __set_bit(GPCMD_READ_TRACK_RZONE_INFO, filter->read_ok);
- __set_bit(GPCMD_READ_SUBCHANNEL, filter->read_ok);
- __set_bit(GPCMD_READ_TOC_PMA_ATIP, filter->read_ok);
- __set_bit(GPCMD_REPORT_KEY, filter->read_ok);
- __set_bit(GPCMD_SCAN, filter->read_ok);
- __set_bit(GPCMD_GET_CONFIGURATION, filter->read_ok);
- __set_bit(GPCMD_READ_FORMAT_CAPACITIES, filter->read_ok);
- __set_bit(GPCMD_GET_EVENT_STATUS_NOTIFICATION, filter->read_ok);
- __set_bit(GPCMD_GET_PERFORMANCE, filter->read_ok);
- __set_bit(GPCMD_SEEK, filter->read_ok);
- __set_bit(GPCMD_STOP_PLAY_SCAN, filter->read_ok);
-
- /* Basic writing commands */
- __set_bit(WRITE_6, filter->write_ok);
- __set_bit(WRITE_10, filter->write_ok);
- __set_bit(WRITE_VERIFY, filter->write_ok);
- __set_bit(WRITE_12, filter->write_ok);
- __set_bit(WRITE_VERIFY_12, filter->write_ok);
- __set_bit(WRITE_16, filter->write_ok);
- __set_bit(WRITE_LONG, filter->write_ok);
- __set_bit(WRITE_LONG_2, filter->write_ok);
- __set_bit(ERASE, filter->write_ok);
- __set_bit(GPCMD_MODE_SELECT_10, filter->write_ok);
- __set_bit(MODE_SELECT, filter->write_ok);
- __set_bit(LOG_SELECT, filter->write_ok);
- __set_bit(GPCMD_BLANK, filter->write_ok);
- __set_bit(GPCMD_CLOSE_TRACK, filter->write_ok);
- __set_bit(GPCMD_FLUSH_CACHE, filter->write_ok);
- __set_bit(GPCMD_FORMAT_UNIT, filter->write_ok);
- __set_bit(GPCMD_REPAIR_RZONE_TRACK, filter->write_ok);
- __set_bit(GPCMD_RESERVE_RZONE_TRACK, filter->write_ok);
- __set_bit(GPCMD_SEND_DVD_STRUCTURE, filter->write_ok);
- __set_bit(GPCMD_SEND_EVENT, filter->write_ok);
- __set_bit(GPCMD_SEND_KEY, filter->write_ok);
- __set_bit(GPCMD_SEND_OPC, filter->write_ok);
- __set_bit(GPCMD_SEND_CUE_SHEET, filter->write_ok);
- __set_bit(GPCMD_SET_SPEED, filter->write_ok);
- __set_bit(GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL, filter->write_ok);
- __set_bit(GPCMD_LOAD_UNLOAD, filter->write_ok);
- __set_bit(GPCMD_SET_STREAMING, filter->write_ok);
-}
-
int blk_register_filter(struct gendisk *disk)
{
int ret;
- struct blk_scsi_cmd_filter *filter = &disk->cmd_filter;
+ struct blk_scsi_cmd_filter *filter = &disk->queue->cmd_filter;
struct kobject *parent = kobject_get(disk->holder_dir->parent);
if (!parent)
return -ENODEV;
ret = kobject_init_and_add(&filter->kobj, &rcf_ktype, parent,
- "%s", "cmd_filter");
+ "%s", "cmd_filter");
if (ret < 0)
return ret;
- rcf_set_defaults(filter);
return 0;
}
void blk_unregister_filter(struct gendisk *disk)
{
- struct blk_scsi_cmd_filter *filter = &disk->cmd_filter;
+ struct blk_scsi_cmd_filter *filter = &disk->queue->cmd_filter;
kobject_put(&filter->kobj);
kobject_put(disk->holder_dir->parent);
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 12a5182..d01ef5e 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -105,12 +105,96 @@
return put_user(1, p);
}
+void blk_set_cmd_filter_defaults(struct blk_scsi_cmd_filter *filter)
+{
+ /* Basic read-only commands */
+ __set_bit(TEST_UNIT_READY, filter->read_ok);
+ __set_bit(REQUEST_SENSE, filter->read_ok);
+ __set_bit(READ_6, filter->read_ok);
+ __set_bit(READ_10, filter->read_ok);
+ __set_bit(READ_12, filter->read_ok);
+ __set_bit(READ_16, filter->read_ok);
+ __set_bit(READ_BUFFER, filter->read_ok);
+ __set_bit(READ_DEFECT_DATA, filter->read_ok);
+ __set_bit(READ_CAPACITY, filter->read_ok);
+ __set_bit(READ_LONG, filter->read_ok);
+ __set_bit(INQUIRY, filter->read_ok);
+ __set_bit(MODE_SENSE, filter->read_ok);
+ __set_bit(MODE_SENSE_10, filter->read_ok);
+ __set_bit(LOG_SENSE, filter->read_ok);
+ __set_bit(START_STOP, filter->read_ok);
+ __set_bit(GPCMD_VERIFY_10, filter->read_ok);
+ __set_bit(VERIFY_16, filter->read_ok);
+ __set_bit(REPORT_LUNS, filter->read_ok);
+ __set_bit(SERVICE_ACTION_IN, filter->read_ok);
+ __set_bit(RECEIVE_DIAGNOSTIC, filter->read_ok);
+ __set_bit(MAINTENANCE_IN, filter->read_ok);
+ __set_bit(GPCMD_READ_BUFFER_CAPACITY, filter->read_ok);
+
+ /* Audio CD commands */
+ __set_bit(GPCMD_PLAY_CD, filter->read_ok);
+ __set_bit(GPCMD_PLAY_AUDIO_10, filter->read_ok);
+ __set_bit(GPCMD_PLAY_AUDIO_MSF, filter->read_ok);
+ __set_bit(GPCMD_PLAY_AUDIO_TI, filter->read_ok);
+ __set_bit(GPCMD_PAUSE_RESUME, filter->read_ok);
+
+ /* CD/DVD data reading */
+ __set_bit(GPCMD_READ_CD, filter->read_ok);
+ __set_bit(GPCMD_READ_CD_MSF, filter->read_ok);
+ __set_bit(GPCMD_READ_DISC_INFO, filter->read_ok);
+ __set_bit(GPCMD_READ_CDVD_CAPACITY, filter->read_ok);
+ __set_bit(GPCMD_READ_DVD_STRUCTURE, filter->read_ok);
+ __set_bit(GPCMD_READ_HEADER, filter->read_ok);
+ __set_bit(GPCMD_READ_TRACK_RZONE_INFO, filter->read_ok);
+ __set_bit(GPCMD_READ_SUBCHANNEL, filter->read_ok);
+ __set_bit(GPCMD_READ_TOC_PMA_ATIP, filter->read_ok);
+ __set_bit(GPCMD_REPORT_KEY, filter->read_ok);
+ __set_bit(GPCMD_SCAN, filter->read_ok);
+ __set_bit(GPCMD_GET_CONFIGURATION, filter->read_ok);
+ __set_bit(GPCMD_READ_FORMAT_CAPACITIES, filter->read_ok);
+ __set_bit(GPCMD_GET_EVENT_STATUS_NOTIFICATION, filter->read_ok);
+ __set_bit(GPCMD_GET_PERFORMANCE, filter->read_ok);
+ __set_bit(GPCMD_SEEK, filter->read_ok);
+ __set_bit(GPCMD_STOP_PLAY_SCAN, filter->read_ok);
+
+ /* Basic writing commands */
+ __set_bit(WRITE_6, filter->write_ok);
+ __set_bit(WRITE_10, filter->write_ok);
+ __set_bit(WRITE_VERIFY, filter->write_ok);
+ __set_bit(WRITE_12, filter->write_ok);
+ __set_bit(WRITE_VERIFY_12, filter->write_ok);
+ __set_bit(WRITE_16, filter->write_ok);
+ __set_bit(WRITE_LONG, filter->write_ok);
+ __set_bit(WRITE_LONG_2, filter->write_ok);
+ __set_bit(ERASE, filter->write_ok);
+ __set_bit(GPCMD_MODE_SELECT_10, filter->write_ok);
+ __set_bit(MODE_SELECT, filter->write_ok);
+ __set_bit(LOG_SELECT, filter->write_ok);
+ __set_bit(GPCMD_BLANK, filter->write_ok);
+ __set_bit(GPCMD_CLOSE_TRACK, filter->write_ok);
+ __set_bit(GPCMD_FLUSH_CACHE, filter->write_ok);
+ __set_bit(GPCMD_FORMAT_UNIT, filter->write_ok);
+ __set_bit(GPCMD_REPAIR_RZONE_TRACK, filter->write_ok);
+ __set_bit(GPCMD_RESERVE_RZONE_TRACK, filter->write_ok);
+ __set_bit(GPCMD_SEND_DVD_STRUCTURE, filter->write_ok);
+ __set_bit(GPCMD_SEND_EVENT, filter->write_ok);
+ __set_bit(GPCMD_SEND_KEY, filter->write_ok);
+ __set_bit(GPCMD_SEND_OPC, filter->write_ok);
+ __set_bit(GPCMD_SEND_CUE_SHEET, filter->write_ok);
+ __set_bit(GPCMD_SET_SPEED, filter->write_ok);
+ __set_bit(GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL, filter->write_ok);
+ __set_bit(GPCMD_LOAD_UNLOAD, filter->write_ok);
+ __set_bit(GPCMD_SET_STREAMING, filter->write_ok);
+}
+EXPORT_SYMBOL_GPL(blk_set_cmd_filter_defaults);
+
static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
struct sg_io_hdr *hdr, struct file *file)
{
if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len))
return -EFAULT;
- if (blk_verify_command(file, rq->cmd))
+ if (blk_verify_command(&q->cmd_filter, rq->cmd,
+ file->f_mode & FMODE_WRITE))
return -EPERM;
/*
@@ -298,7 +382,7 @@
struct gendisk *disk, struct scsi_ioctl_command __user *sic)
{
struct request *rq;
- int err;
+ int err, write_perm = 0;
unsigned int in_len, out_len, bytes, opcode, cmdlen;
char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE];
@@ -340,7 +424,11 @@
if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len))
goto error;
- err = blk_verify_command(file, rq->cmd);
+ /* scsi_ioctl passes NULL */
+ if (file && (file->f_mode & FMODE_WRITE))
+ write_perm = 1;
+
+ err = blk_verify_command(&q->cmd_filter, rq->cmd, write_perm);
if (err)
goto error;
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 3d36270..9d28b9f 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -641,6 +641,7 @@
unsigned char cmnd[MAX_COMMAND_SIZE];
int timeout;
unsigned long ul_timeout;
+ struct request_queue *q;
if (count < SZ_SG_IO_HDR)
return -EINVAL;
@@ -689,7 +690,9 @@
sg_remove_request(sfp, srp);
return -EFAULT;
}
- if (read_only && !blk_verify_command(file, cmnd)) {
+ q = sfp->parentdp->device->request_queue;
+ if (read_only && blk_verify_command(&q->cmd_filter, cmnd,
+ file->f_mode & FMODE_WRITE)) {
sg_remove_request(sfp, srp);
return -EPERM;
}
@@ -793,6 +796,7 @@
if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp)))
return -ENXIO;
+
SCSI_LOG_TIMEOUT(3, printk("sg_ioctl: %s, cmd=0x%x\n",
sdp->disk->disk_name, (int) cmd_in));
read_only = (O_RDWR != (filp->f_flags & O_ACCMODE));
@@ -1057,11 +1061,14 @@
return -ENODEV;
if (read_only) {
unsigned char opcode = WRITE_6;
+ struct request_queue *q = sdp->device->request_queue;
Scsi_Ioctl_Command __user *siocp = p;
if (copy_from_user(&opcode, siocp->data, 1))
return -EFAULT;
- if (!blk_verify_command(filp, &opcode))
+ if (blk_verify_command(&q->cmd_filter,
+ &opcode,
+ filp->f_mode & FMODE_WRITE))
return -EPERM;
}
return sg_scsi_ioctl(filp, sdp->device->request_queue, NULL, p);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index e61f22b..d2d34e2 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -280,6 +280,15 @@
atomic_t refcnt; /* map can be shared */
};
+#define BLK_SCSI_MAX_CMDS (256)
+#define BLK_SCSI_CMD_PER_LONG (BLK_SCSI_MAX_CMDS / (sizeof(long) * 8))
+
+struct blk_scsi_cmd_filter {
+ unsigned long read_ok[BLK_SCSI_CMD_PER_LONG];
+ unsigned long write_ok[BLK_SCSI_CMD_PER_LONG];
+ struct kobject kobj;
+};
+
struct request_queue
{
/*
@@ -398,6 +407,7 @@
#if defined(CONFIG_BLK_DEV_BSG)
struct bsg_class_device bsg_dev;
#endif
+ struct blk_scsi_cmd_filter cmd_filter;
};
#define QUEUE_FLAG_CLUSTER 0 /* cluster several segments into 1 */
@@ -833,11 +843,11 @@
/*
* command filter functions
*/
-extern int blk_verify_command(struct file *file, unsigned char *cmd);
-extern int blk_cmd_filter_verify_command(struct blk_scsi_cmd_filter *filter,
- unsigned char *cmd, mode_t *f_mode);
+extern int blk_verify_command(struct blk_scsi_cmd_filter *filter,
+ unsigned char *cmd, int has_write_perm);
extern int blk_register_filter(struct gendisk *disk);
extern void blk_unregister_filter(struct gendisk *disk);
+extern void blk_set_cmd_filter_defaults(struct blk_scsi_cmd_filter *filter);
#define MAX_PHYS_SEGMENTS 128
#define MAX_HW_SEGMENTS 128
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 118216f..be4f5e5 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -110,15 +110,6 @@
#define GENHD_FL_SUPPRESS_PARTITION_INFO 32
#define GENHD_FL_FAIL 64
-#define BLK_SCSI_MAX_CMDS (256)
-#define BLK_SCSI_CMD_PER_LONG (BLK_SCSI_MAX_CMDS / (sizeof(long) * 8))
-
-struct blk_scsi_cmd_filter {
- unsigned long read_ok[BLK_SCSI_CMD_PER_LONG];
- unsigned long write_ok[BLK_SCSI_CMD_PER_LONG];
- struct kobject kobj;
-};
-
struct gendisk {
int major; /* major number of driver */
int first_minor;
@@ -128,7 +119,6 @@
struct hd_struct **part; /* [indexed by minor] */
struct block_device_operations *fops;
struct request_queue *queue;
- struct blk_scsi_cmd_filter cmd_filter;
void *private_data;
sector_t capacity;