* [PATCH] 2.5.39 s390 (7/26): dasd driver.
@ 2002-09-30 12:53 Martin Schwidefsky
0 siblings, 0 replies; only message in thread
From: Martin Schwidefsky @ 2002-09-30 12:53 UTC (permalink / raw)
To: linux-kernel, torvalds
Allocate gendisk structure per dasd device, replace kdev_t by a bdev pointer
where possible and remove option CONFIG_DASD_DYNAMIC.
diff -urN linux-2.5.39/drivers/s390/block/dasd.c linux-2.5.39-s390/drivers/s390/block/dasd.c
--- linux-2.5.39/drivers/s390/block/dasd.c Fri Sep 27 23:49:53 2002
+++ linux-2.5.39-s390/drivers/s390/block/dasd.c Mon Sep 30 13:25:48 2002
@@ -203,20 +203,24 @@
dasd_alloc_device(dasd_devmap_t *devmap)
{
dasd_device_t *device;
+ struct gendisk *gdp;
int rc;
- /* Make sure the gendisk structure for this device exists. */
- while (dasd_gendisk_from_devindex(devmap->devindex) == NULL) {
- rc = dasd_gendisk_new_major();
- if (rc)
- return ERR_PTR(rc);
- }
-
device = kmalloc(sizeof (dasd_device_t), GFP_ATOMIC);
if (device == NULL)
return ERR_PTR(-ENOMEM);
memset(device, 0, sizeof (dasd_device_t));
+ /* Get devinfo from the common io layer. */
+ rc = get_dev_info_by_devno(devmap->devno, &device->devinfo);
+ if (rc) {
+ kfree(device);
+ return ERR_PTR(rc);
+ }
+ DBF_EVENT(DBF_NOTICE, "got devinfo CU-type %04x and dev-type %04x",
+ device->devinfo.sid_data.cu_type,
+ device->devinfo.sid_data.dev_type);
+
/* Get two pages for normal block device operations. */
device->ccw_mem = (void *) __get_free_pages(GFP_ATOMIC | GFP_DMA, 1);
if (device->ccw_mem == NULL) {
@@ -231,17 +235,15 @@
return ERR_PTR(-ENOMEM);
}
- /* Get devinfo from the common io layer. */
- rc = get_dev_info_by_devno(devmap->devno, &device->devinfo);
- if (rc) {
- free_page((unsigned long) device->erp_mem);
+ /* Allocate gendisk structure for device. */
+ gdp = dasd_gendisk_alloc(device->name, devmap->devindex);
+ if (IS_ERR(gdp)) {
+ free_page((unsigned long) device->erp_mem);
free_pages((unsigned long) device->ccw_mem, 1);
kfree(device);
- return ERR_PTR(rc);
+ return (dasd_device_t *) gdp;
}
- DBF_EVENT(DBF_NOTICE, "got devinfo CU-type %04x and dev-type %04x",
- device->devinfo.sid_data.cu_type,
- device->devinfo.sid_data.dev_type);
+ device->gdp = gdp;
dasd_init_chunklist(&device->ccw_chunks, device->ccw_mem, PAGE_SIZE*2);
dasd_init_chunklist(&device->erp_chunks, device->erp_mem, PAGE_SIZE);
@@ -268,6 +270,7 @@
kfree(device->private);
free_page((unsigned long) device->erp_mem);
free_pages((unsigned long) device->ccw_mem, 1);
+ dasd_gendisk_free(device->gdp);
kfree(device);
}
@@ -278,21 +281,22 @@
dasd_state_new_to_known(dasd_device_t *device)
{
char buffer[5];
- struct gendisk *gdp;
dasd_devmap_t *devmap;
umode_t devfs_perm;
devfs_handle_t dir;
- int minor, rc;
+ int major, minor, rc;
devmap = dasd_devmap_from_devno(device->devinfo.devno);
if (devmap == NULL)
return -ENODEV;
- gdp = dasd_gendisk_from_devindex(devmap->devindex);
- if (gdp == NULL)
+ major = dasd_gendisk_index_major(devmap->devindex);
+ if (major < 0)
return -ENODEV;
- /* Set kdev and the device name. */
- device->kdev = mk_kdev(gdp->major, gdp->first_minor);
- strcpy(device->name, gdp->major_name);
+ minor = devmap->devindex % DASD_PER_MAJOR;
+
+ /* Set bdev and the device name. */
+ device->bdev = bdget(MKDEV(major, minor << DASD_PARTN_BITS));
+ strcpy(device->name, device->gdp->major_name);
/* Find a discipline for the device. */
rc = dasd_find_disc(device);
@@ -302,14 +306,13 @@
/* Add a proc directory and the dasd device entry to devfs. */
sprintf(buffer, "%04x", device->devinfo.devno);
dir = devfs_mk_dir(dasd_devfs_handle, buffer, device);
- gdp->de = dir;
+ device->gdp->de = dir;
if (devmap->features & DASD_FEATURE_READONLY)
devfs_perm = S_IFBLK | S_IRUSR;
else
devfs_perm = S_IFBLK | S_IRUSR | S_IWUSR;
device->devfs_entry = devfs_register(dir, "device", DEVFS_FL_DEFAULT,
- major(device->kdev),
- minor(device->kdev),
+ major, minor << DASD_PARTN_BITS,
devfs_perm,
&dasd_device_operations, NULL);
device->state = DASD_STATE_KNOWN;
@@ -322,17 +325,25 @@
static inline void
dasd_state_known_to_new(dasd_device_t * device)
{
- dasd_devmap_t *devmap = dasd_devmap_from_devno(device->devinfo.devno);
- struct gendisk *gdp = dasd_gendisk_from_devindex(devmap->devindex);
- if (gdp == NULL)
- return;
+ dasd_devmap_t *devmap;
+ struct block_device *bdev;
+ int minor;
+
+ devmap = dasd_devmap_from_devno(device->devinfo.devno);
+ minor = devmap->devindex % DASD_PER_MAJOR;
+
/* Remove device entry and devfs directory. */
devfs_unregister(device->devfs_entry);
- devfs_unregister(gdp->de);
+ devfs_unregister(device->gdp->de);
/* Forget the discipline information. */
device->discipline = NULL;
device->state = DASD_STATE_NEW;
+
+ /* Forget the block device */
+ bdev = device->bdev;
+ device->bdev = NULL;
+ bdput(bdev);
}
/*
@@ -419,21 +430,29 @@
}
/*
+ * get the kdev_t of a device
+ * FIXME: remove this when no longer needed
+ */
+static inline kdev_t
+dasd_partition_to_kdev_t(dasd_device_t *device, unsigned int partition)
+{
+ return to_kdev_t(device->bdev->bd_dev+partition);
+}
+
+
+/*
* Setup block device.
*/
static inline int
dasd_state_accept_to_ready(dasd_device_t * device)
{
dasd_devmap_t *devmap;
- int major, minor;
int rc, i;
devmap = dasd_devmap_from_devno(device->devinfo.devno);
if (devmap->features & DASD_FEATURE_READONLY) {
- major = major(device->kdev);
- minor = minor(device->kdev);
for (i = 0; i < (1 << DASD_PARTN_BITS); i++)
- set_device_ro(mk_kdev(major, minor+i), 1);
+ set_device_ro(dasd_partition_to_kdev_t(device, i), 1);
DEV_MESSAGE (KERN_WARNING, device, "%s",
"setting read-only mode ");
}
@@ -1539,11 +1558,9 @@
goto restart;
}
- /* Dechain request from device request queue ... */
+ /* Rechain request on device device request queue */
cqr->endclk = get_clock();
- list_del(&cqr->list);
- /* ... and add it to list of final requests. */
- list_add_tail(&cqr->list, final_queue);
+ list_move_tail(&cqr->list, final_queue);
}
}
@@ -1572,6 +1589,10 @@
dasd_ccw_req_t *cqr;
int nr_queued;
+ /* No bdev, no queue. */
+ bdev = device->bdev;
+ if (!bdev)
+ return;
queue = device->request_queue;
/* No queue ? Then there is nothing to do. */
if (queue == NULL)
@@ -1594,9 +1615,6 @@
if (cqr->status == DASD_CQR_QUEUED)
nr_queued++;
}
- bdev = bdget(kdev_t_to_nr(device->kdev));
- if (!bdev)
- return;
while (!blk_queue_plugged(queue) &&
!blk_queue_empty(queue) &&
nr_queued < DASD_CHANQ_MAX_SIZE) {
@@ -1628,7 +1646,6 @@
dasd_profile_start(device, cqr, req);
nr_queued++;
}
- bdput(bdev);
}
/*
@@ -1707,11 +1724,9 @@
__dasd_process_erp(device, cqr);
continue;
}
- /* Dechain request from device request queue ... */
+ /* Rechain request on device request queue */
cqr->endclk = get_clock();
- list_del(&cqr->list);
- /* ... and add it to list of flushed requests. */
- list_add_tail(&cqr->list, &flush_queue);
+ list_move_tail(&cqr->list, &flush_queue);
}
spin_unlock_irq(get_irq_lock(device->devinfo.irq));
/* Now call the callback function of flushed requests */
diff -urN linux-2.5.39/drivers/s390/block/dasd_devmap.c linux-2.5.39-s390/drivers/s390/block/dasd_devmap.c
--- linux-2.5.39/drivers/s390/block/dasd_devmap.c Fri Sep 27 23:49:55 2002
+++ linux-2.5.39-s390/drivers/s390/block/dasd_devmap.c Mon Sep 30 13:25:48 2002
@@ -449,6 +449,15 @@
}
/*
+ * Find the devmap for a device corresponding to a block_device.
+ */
+dasd_devmap_t *
+dasd_devmap_from_bdev(struct block_device *bdev)
+{
+ return dasd_devmap_from_kdev(to_kdev_t(bdev->bd_dev));
+}
+
+/*
* Find the device structure for device number devno. If it does not
* exists yet, allocate it. Increase the reference counter in the device
* structure and return a pointer to it.
diff -urN linux-2.5.39/drivers/s390/block/dasd_diag.c linux-2.5.39-s390/drivers/s390/block/dasd_diag.c
--- linux-2.5.39/drivers/s390/block/dasd_diag.c Fri Sep 27 23:48:38 2002
+++ linux-2.5.39-s390/drivers/s390/block/dasd_diag.c Mon Sep 30 13:31:41 2002
@@ -21,6 +21,7 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/hdreg.h> /* HDIO_GETGEO */
+#include <linux/bio.h>
#include <asm/dasd.h>
#include <asm/debug.h>
@@ -53,31 +54,6 @@
diag_bio_t bio[0];
} dasd_diag_req_t;
-
-static __inline__ int
-dia210(void *devchar)
-{
- int rc;
-
- __asm__ __volatile__(" diag %1,0,0x210\n"
- "0: ipm %0\n"
- " srl %0,28\n"
- "1:\n"
- ".section .fixup,\"ax\"\n"
- "2: lhi %0,3\n"
- " bras 1,3f\n"
- " .long 1b\n"
- "3: l 1,0(1)\n"
- " br 1\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 0b,2b\n" ".previous\n":"=d"(rc)
- :"d"((void *) __pa(devchar))
- :"1");
- return rc;
-}
-
static __inline__ int
dia250(void *iob, int cmd)
{
@@ -155,7 +131,7 @@
private->iob.key = 0;
private->iob.flags = 2; /* do asynchronous io */
private->iob.block_count = dreq->block_count;
- private->iob.interrupt_params = (u32) cqr;
+ private->iob.interrupt_params = (u32)(addr_t) cqr;
private->iob.bio_list = __pa(dreq->bio);
cqr->startclk = get_clock();
@@ -196,21 +172,21 @@
ip = S390_lowcore.ext_params;
cpu = smp_processor_id();
- irq_enter(cpu, -1);
+ irq_enter();
if (!ip) { /* no intparm: unsolicited interrupt */
MESSAGE(KERN_DEBUG, "%s", "caught unsolicited interrupt");
- irq_exit(cpu, -1);
+ irq_exit();
return;
}
- cqr = (dasd_ccw_req_t *) ip;
+ cqr = (dasd_ccw_req_t *)(addr_t) ip;
device = (dasd_device_t *) cqr->device;
if (strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) {
DEV_MESSAGE(KERN_WARNING, device,
" magic number of dasd_ccw_req_t 0x%08X doesn't"
" match discipline 0x%08X",
cqr->magic, *(int *) (&device->discipline->name));
- irq_exit(cpu, -1);
+ irq_exit();
return;
}
@@ -244,8 +220,7 @@
dasd_schedule_bh(device);
spin_unlock_irqrestore(get_irq_lock(device->devinfo.irq), flags);
- irq_exit(cpu, -1);
-
+ irq_exit();
}
static int
@@ -273,7 +248,7 @@
rdc_data->dev_nr = device->devinfo.devno;
rdc_data->rdc_len = sizeof (dasd_diag_characteristics_t);
- rc = dia210(rdc_data);
+ rc = diag210((diag210_t *) rdc_data);
if (rc)
return -ENOTSUPP;
diff -urN linux-2.5.39/drivers/s390/block/dasd_eckd.c linux-2.5.39-s390/drivers/s390/block/dasd_eckd.c
--- linux-2.5.39/drivers/s390/block/dasd_eckd.c Fri Sep 27 23:48:35 2002
+++ linux-2.5.39-s390/drivers/s390/block/dasd_eckd.c Mon Sep 30 13:25:48 2002
@@ -29,6 +29,7 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/hdreg.h> /* HDIO_GETGEO */
+#include <linux/bio.h>
#include <asm/debug.h>
#include <asm/idals.h>
@@ -69,7 +70,6 @@
attrib_data_t attrib; /* e.g. cache operations */
} dasd_eckd_private_t;
-#ifdef CONFIG_DASD_DYNAMIC
static
devreg_t dasd_eckd_known_devices[] = {
{
@@ -94,7 +94,6 @@
oper_func:dasd_oper_handler
}
};
-#endif
static const int sizes_trk0[] = { 28, 148, 84 };
#define LABEL_SIZE 140
@@ -1092,7 +1091,8 @@
* Buils a channel programm to releases a prior reserved
* (see dasd_eckd_reserve) device.
*/
-static int dasd_eckd_release(void *inp, int no, long args)
+static int
+dasd_eckd_release(struct block_device *bdev, int no, long args)
{
dasd_devmap_t *devmap;
dasd_device_t *device;
@@ -1101,7 +1101,7 @@
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- devmap = dasd_devmap_from_kdev(((struct inode *) inp)->i_rdev);
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -1134,7 +1134,8 @@
* 'timeout the request'. This leads to an terminate IO if
* the interrupt is outstanding for a certain time.
*/
-static int dasd_eckd_reserve(void *inp, int no, long args)
+static int
+dasd_eckd_reserve(struct block_device *bdev, int no, long args)
{
dasd_devmap_t *devmap;
dasd_device_t *device;
@@ -1143,7 +1144,7 @@
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- devmap = dasd_devmap_from_kdev(((struct inode *) inp)->i_rdev);
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -1168,7 +1169,7 @@
if (rc == -EIO) {
/* Request got an eror or has been timed out. */
- dasd_eckd_release(inp, no, args);
+ dasd_eckd_release(bdev, no, args);
}
dasd_kfree_request(cqr, cqr->device);
dasd_put_device(devmap);
@@ -1180,7 +1181,8 @@
* Buils a channel programm to break a device's reservation.
* (unconditional reserve)
*/
-static int dasd_eckd_steal_lock(void *inp, int no, long args)
+static int
+dasd_eckd_steal_lock(struct block_device *bdev, int no, long args)
{
dasd_devmap_t *devmap;
dasd_device_t *device;
@@ -1189,7 +1191,7 @@
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- devmap = dasd_devmap_from_kdev(((struct inode *) inp)->i_rdev);
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -1213,7 +1215,7 @@
if (rc == -EIO) {
/* Request got an eror or has been timed out. */
- dasd_eckd_release(inp, no, args);
+ dasd_eckd_release(bdev, no, args);
}
dasd_kfree_request(cqr, cqr->device);
dasd_put_device(devmap);
@@ -1223,7 +1225,8 @@
/*
* Read performance statistics
*/
-static int dasd_eckd_performance(void *inp, int no, long args)
+static int
+dasd_eckd_performance(struct block_device *bdev, int no, long args)
{
dasd_devmap_t *devmap;
dasd_device_t *device;
@@ -1233,7 +1236,7 @@
ccw1_t *ccw;
int rc;
- devmap = dasd_devmap_from_kdev(((struct inode *) inp)->i_rdev);
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -1292,7 +1295,8 @@
* Set attributes (cache operations)
* Stores the attributes for cache operation to be used in Define Extend (DE).
*/
-static int dasd_eckd_set_attrib(void *inp, int no, long args)
+static int
+dasd_eckd_set_attrib(struct block_device *bdev, int no, long args)
{
dasd_devmap_t *devmap;
dasd_device_t *device;
@@ -1304,7 +1308,7 @@
if (!args)
return -EINVAL;
- devmap = dasd_devmap_from_kdev(((struct inode *) inp)->i_rdev);
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -1452,10 +1456,8 @@
ASCEBC(dasd_eckd_discipline.ebcname, 4);
dasd_discipline_add(&dasd_eckd_discipline);
-#ifdef CONFIG_DASD_DYNAMIC
for (i = 0; i < sizeof(dasd_eckd_known_devices)/sizeof(devreg_t); i++)
s390_device_register(&dasd_eckd_known_devices[i]);
-#endif
return 0;
}
@@ -1464,10 +1466,8 @@
{
int i;
-#ifdef CONFIG_DASD_DYNAMIC
for (i = 0; i < sizeof(dasd_eckd_known_devices)/sizeof(devreg_t); i++)
s390_device_unregister(&dasd_eckd_known_devices[i]);
-#endif /* CONFIG_DASD_DYNAMIC */
dasd_discipline_del(&dasd_eckd_discipline);
diff -urN linux-2.5.39/drivers/s390/block/dasd_fba.c linux-2.5.39-s390/drivers/s390/block/dasd_fba.c
--- linux-2.5.39/drivers/s390/block/dasd_fba.c Fri Sep 27 23:50:22 2002
+++ linux-2.5.39-s390/drivers/s390/block/dasd_fba.c Mon Sep 30 13:25:48 2002
@@ -16,6 +16,7 @@
#include <linux/slab.h>
#include <linux/hdreg.h> /* HDIO_GETGEO */
+#include <linux/bio.h>
#include <asm/idals.h>
#include <asm/ebcdic.h>
@@ -43,7 +44,6 @@
dasd_fba_characteristics_t rdc_data;
} dasd_fba_private_t;
-#ifdef CONFIG_DASD_DYNAMIC
static
devreg_t dasd_fba_known_devices[] = {
{
@@ -59,7 +59,6 @@
oper_func:dasd_oper_handler
}
};
-#endif
static inline void
define_extent(ccw1_t * ccw, DE_fba_data_t *data, int rw,
@@ -417,10 +416,8 @@
ASCEBC(dasd_fba_discipline.ebcname, 4);
dasd_discipline_add(&dasd_fba_discipline);
-#ifdef CONFIG_DASD_DYNAMIC
for (i = 0; i < sizeof(dasd_fba_known_devices) / sizeof(devreg_t); i++)
s390_device_register(&dasd_fba_known_devices[i]);
-#endif
return 0;
}
@@ -429,10 +426,8 @@
{
int i;
-#ifdef CONFIG_DASD_DYNAMIC
for (i = 0; i < sizeof(dasd_fba_known_devices) / sizeof(devreg_t); i++)
s390_device_unregister(&dasd_fba_known_devices[i]);
-#endif
dasd_discipline_del(&dasd_fba_discipline);
}
diff -urN linux-2.5.39/drivers/s390/block/dasd_genhd.c linux-2.5.39-s390/drivers/s390/block/dasd_genhd.c
--- linux-2.5.39/drivers/s390/block/dasd_genhd.c Fri Sep 27 23:50:27 2002
+++ linux-2.5.39-s390/drivers/s390/block/dasd_genhd.c Mon Sep 30 13:25:48 2002
@@ -33,8 +33,6 @@
struct major_info {
struct list_head list;
int major;
- struct gendisk disks[DASD_PER_MAJOR];
- char names[DASD_PER_MAJOR * 8];
};
/*
@@ -66,12 +64,8 @@
dasd_register_major(int major)
{
struct major_info *mi;
- int new_major, rc;
- struct list_head *l;
- int index;
- int i;
+ int new_major;
- rc = 0;
/* Allocate major info structure. */
mi = kmalloc(sizeof(struct major_info), GFP_KERNEL);
@@ -80,67 +74,39 @@
MESSAGE(KERN_WARNING, "%s",
"Cannot get memory to allocate another "
"major number");
- rc = -ENOMEM;
- goto out_error;
+ return -ENOMEM;
}
/* Register block device. */
new_major = register_blkdev(major, "dasd", &dasd_device_operations);
if (new_major < 0) {
MESSAGE(KERN_WARNING,
- "Cannot register to major no %d, rc = %d", major, rc);
- rc = new_major;
- goto out_error;
+ "Cannot register to major no %d, rc = %d",
+ major, new_major);
+ kfree(mi);
+ return new_major;
}
if (major != 0)
new_major = major;
-
+
/* Initialize major info structure. */
- memset(mi, 0, sizeof(struct major_info));
mi->major = new_major;
- for (i = 0; i < DASD_PER_MAJOR; i++) {
- struct gendisk *disk = mi->disks + i;
- disk->major = new_major;
- disk->first_minor = i << DASD_PARTN_BITS;
- disk->minor_shift = DASD_PARTN_BITS;
- disk->fops = &dasd_device_operations;
- disk->flags = GENHD_FL_DEVFS;
- }
/* Setup block device pointers for the new major. */
blk_dev[new_major].queue = dasd_get_queue;
+ /* Insert the new major info structure into dasd_major_info list. */
spin_lock(&dasd_major_lock);
- index = 0;
- list_for_each(l, &dasd_major_info)
- index += DASD_PER_MAJOR;
- for (i = 0; i < DASD_PER_MAJOR; i++, index++) {
- char *name = mi->names + i * 8;
- mi->disks[i].major_name = name;
- sprintf(name, "dasd");
- name += 4;
- if (index > 701)
- *name++ = 'a' + (((index - 702) / 676) % 26);
- if (index > 25)
- *name++ = 'a' + (((index - 26) / 26) % 26);
- sprintf(name, "%c", 'a' + (index % 26));
- }
list_add_tail(&mi->list, &dasd_major_info);
spin_unlock(&dasd_major_lock);
return 0;
-
- /* Something failed. Do the cleanup and return rc. */
-out_error:
- /* We rely on kfree to do the != NULL check. */
- kfree(mi);
- return rc;
}
static void
dasd_unregister_major(struct major_info * mi)
{
- int major, rc;
+ int rc;
if (mi == NULL)
return;
@@ -151,99 +117,177 @@
spin_unlock(&dasd_major_lock);
/* Clear block device pointers. */
- major = mi->major;
- blk_dev[major].queue = NULL;
+ blk_dev[mi->major].queue = NULL;
- rc = unregister_blkdev(major, "dasd");
+ rc = unregister_blkdev(mi->major, "dasd");
if (rc < 0)
MESSAGE(KERN_WARNING,
"Cannot unregister from major no %d, rc = %d",
- major, rc);
+ mi->major, rc);
/* Free memory. */
kfree(mi);
}
/*
- * Dynamically allocate a new major for dasd devices.
+ * This one is needed for naming 18000+ possible dasd devices.
+ * dasda - dasdz : 26 devices
+ * dasdaa - dasdzz : 676 devices, added up = 702
+ * dasdaaa - dasdzzz : 17576 devices, added up = 18278
*/
int
-dasd_gendisk_new_major(void)
+dasd_device_name(char *str, int index, int partition)
{
- int rc;
-
- rc = dasd_register_major(0);
- if (rc)
- DBF_EXC(DBF_ALERT, "%s", "out of major numbers!");
- return rc;
+ int len;
+
+ if (partition > DASD_PARTN_MASK)
+ return -EINVAL;
+
+ len = sprintf(str, "dasd");
+ if (index > 25) {
+ if (index > 701)
+ len += sprintf(str + len, "%c",
+ 'a' + (((index - 702) / 676) % 26));
+ len += sprintf(str + len, "%c",
+ 'a' + (((index - 26) / 26) % 26));
+ }
+ len += sprintf(str + len, "%c", 'a' + (index % 26));
+
+ if (partition)
+ len += sprintf(str + len, "%d", partition);
+ return 0;
}
/*
- * Return pointer to gendisk structure by kdev.
+ * Allocate gendisk structure for devindex.
*/
-static struct gendisk *dasd_gendisk_by_dev(kdev_t dev)
+struct gendisk *
+dasd_gendisk_alloc(char *device_name, int devindex)
{
struct list_head *l;
struct major_info *mi;
struct gendisk *gdp;
- int major = major(dev);
+ struct hd_struct *gd_part;
+ int index, len, rc;
- spin_lock(&dasd_major_lock);
- gdp = NULL;
- list_for_each(l, &dasd_major_info) {
- mi = list_entry(l, struct major_info, list);
- if (mi->major == major) {
- gdp = &mi->disks[minor(dev) >> DASD_PARTN_BITS];
+ /* Make sure the major for this device exists. */
+ mi = NULL;
+ while (1) {
+ spin_lock(&dasd_major_lock);
+ index = devindex;
+ list_for_each(l, &dasd_major_info) {
+ mi = list_entry(l, struct major_info, list);
+ if (index < DASD_PER_MAJOR)
+ break;
+ index -= DASD_PER_MAJOR;
+ }
+ spin_unlock(&dasd_major_lock);
+ if (index < DASD_PER_MAJOR)
break;
+ rc = dasd_register_major(0);
+ if (rc) {
+ DBF_EXC(DBF_ALERT, "%s", "out of major numbers!");
+ return ERR_PTR(rc);
}
}
- spin_unlock(&dasd_major_lock);
+
+ /* Allocate genhd structure and gendisk arrays. */
+ gdp = kmalloc(sizeof(struct gendisk), GFP_KERNEL);
+ gd_part = kmalloc(sizeof (struct hd_struct) << DASD_PARTN_BITS,
+ GFP_ATOMIC);
+
+ /* Check if one of the allocations failed. */
+ if (gdp == NULL || gd_part == NULL) {
+ /* We rely on kfree to do the != NULL check. */
+ kfree(gd_part);
+ kfree(gdp);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ /* Initialize gendisk structure. */
+ memset(gdp, 0, sizeof(struct gendisk));
+ gdp->major = mi->major;
+ gdp->major_name = device_name;
+ gdp->first_minor = index << DASD_PARTN_BITS;
+ gdp->minor_shift = DASD_PARTN_BITS;
+ gdp->part = gd_part;
+ gdp->fops = &dasd_device_operations;
+
+ /*
+ * Set device name.
+ * dasda - dasdz : 26 devices
+ * dasdaa - dasdzz : 676 devices, added up = 702
+ * dasdaaa - dasdzzz : 17576 devices, added up = 18278
+ */
+ len = sprintf(device_name, "dasd");
+ if (devindex > 25) {
+ if (devindex > 701)
+ len += sprintf(device_name + len, "%c",
+ 'a' + (((devindex - 702) / 676) % 26));
+ len += sprintf(device_name + len, "%c",
+ 'a' + (((devindex - 26) / 26) % 26));
+ }
+ len += sprintf(device_name + len, "%c", 'a' + (devindex % 26));
+
+ /* Initialize the gendisk arrays. */
+ memset(gd_part, 0, sizeof (struct hd_struct) << DASD_PARTN_BITS);
+
return gdp;
}
/*
- * Return pointer to gendisk structure by devindex.
+ * Free gendisk structure for devindex.
*/
-struct gendisk *
-dasd_gendisk_from_devindex(int devindex)
+void
+dasd_gendisk_free(struct gendisk *gdp)
+{
+ /* Free memory. */
+ kfree(gdp->part);
+ kfree(gdp);
+}
+
+/*
+ * Return devindex of first device using a specific major number.
+ */
+int dasd_gendisk_major_index(int major)
{
struct list_head *l;
struct major_info *mi;
- struct gendisk *gdp;
+ int devindex, rc;
spin_lock(&dasd_major_lock);
- gdp = NULL;
+ rc = -EINVAL;
+ devindex = 0;
list_for_each(l, &dasd_major_info) {
mi = list_entry(l, struct major_info, list);
- if (devindex < DASD_PER_MAJOR) {
- gdp = &mi->disks[devindex];
+ if (mi->major == major) {
+ rc = devindex;
break;
}
- devindex -= DASD_PER_MAJOR;
+ devindex += DASD_PER_MAJOR;
}
spin_unlock(&dasd_major_lock);
- return gdp;
+ return rc;
}
/*
- * Return devindex of first device using a specifiy major number.
+ * Return major number for device with device index devindex.
*/
-int dasd_gendisk_major_index(int major)
+int dasd_gendisk_index_major(int devindex)
{
struct list_head *l;
struct major_info *mi;
- int devindex, rc;
+ int rc;
spin_lock(&dasd_major_lock);
- rc = -EINVAL;
- devindex = 0;
+ rc = -ENODEV;
list_for_each(l, &dasd_major_info) {
mi = list_entry(l, struct major_info, list);
- if (mi->major == major) {
- rc = devindex;
+ if (devindex < DASD_PER_MAJOR) {
+ rc = mi->major;
break;
}
- devindex += DASD_PER_MAJOR;
+ devindex -= DASD_PER_MAJOR;
}
spin_unlock(&dasd_major_lock);
return rc;
@@ -255,11 +299,9 @@
void
dasd_setup_partitions(dasd_device_t * device)
{
- struct gendisk *disk = dasd_gendisk_by_dev(device->kdev);
- if (disk == NULL)
- return;
- set_capacity(disk, device->blocks << device->s2b_shift);
- add_disk(disk);
+ /* Make the disk known. */
+ set_capacity(device->gdp, device->blocks << device->s2b_shift);
+ add_disk(device->gdp);
}
/*
@@ -269,13 +311,7 @@
void
dasd_destroy_partitions(dasd_device_t * device)
{
- struct gendisk *disk = dasd_gendisk_by_dev(device->kdev);
- int minor, i;
-
- if (disk == NULL)
- return;
-
- del_gendisk(disk);
+ del_gendisk(device->gdp);
}
int
@@ -296,6 +332,7 @@
dasd_gendisk_exit(void)
{
struct list_head *l, *n;
+
spin_lock(&dasd_major_lock);
list_for_each_safe(l, n, &dasd_major_info)
dasd_unregister_major(list_entry(l, struct major_info, list));
diff -urN linux-2.5.39/drivers/s390/block/dasd_int.h linux-2.5.39-s390/drivers/s390/block/dasd_int.h
--- linux-2.5.39/drivers/s390/block/dasd_int.h Fri Sep 27 23:50:26 2002
+++ linux-2.5.39-s390/drivers/s390/block/dasd_int.h Mon Sep 30 13:25:48 2002
@@ -64,12 +64,12 @@
#include <asm/irq.h>
#include <asm/s390dyn.h>
-#define CONFIG_DASD_DYNAMIC
-
/*
* SECTION: Type definitions
*/
-typedef int (*dasd_ioctl_fn_t) (void *inp, int no, long args);
+struct dasd_device_t;
+
+typedef int (*dasd_ioctl_fn_t) (struct block_device *bdev, int no, long args);
typedef struct {
struct list_head list;
@@ -139,9 +139,8 @@
/* messages to be written via klogd and dbf */
#define DEV_MESSAGE(d_loglevel,d_device,d_string,d_args...)\
do { \
- printk(d_loglevel PRINTK_HEADER " /dev/%-7s(%3d:%3d),%04x@%02x: " \
- d_string "\n", d_device->name, \
- major(d_device->kdev), minor(d_device->kdev), \
+ printk(d_loglevel PRINTK_HEADER " %s,%04x@%02x: " \
+ d_string "\n", bdevname(d_device->bdev), \
d_device->devinfo.devno, d_device->devinfo.irq, \
d_args); \
DBF_DEV_EVENT(DBF_ALERT, d_device, d_string, d_args); \
@@ -153,8 +152,6 @@
DBF_EVENT(DBF_ALERT, d_string, d_args); \
} while(0)
-struct dasd_device_t;
-
typedef struct dasd_ccw_req_t {
unsigned int magic; /* Eye catcher */
struct list_head list; /* list_head for request queueing. */
@@ -262,7 +259,8 @@
typedef struct dasd_device_t {
/* Block device stuff. */
char name[16]; /* The device name in /dev. */
- kdev_t kdev;
+ struct block_device *bdev;
+ struct gendisk *gdp;
devfs_handle_t devfs_entry;
request_queue_t *request_queue;
spinlock_t request_queue_lock;
@@ -467,6 +465,7 @@
dasd_devmap_t *dasd_devmap_from_devindex(int);
dasd_devmap_t *dasd_devmap_from_irq(int);
dasd_devmap_t *dasd_devmap_from_kdev(kdev_t);
+dasd_devmap_t *dasd_devmap_from_bdev(struct block_device *bdev);
dasd_device_t *dasd_get_device(dasd_devmap_t *);
void dasd_put_device(dasd_devmap_t *);
@@ -478,9 +477,10 @@
/* externals in dasd_gendisk.c */
int dasd_gendisk_init(void);
void dasd_gendisk_exit(void);
-int dasd_gendisk_new_major(void);
int dasd_gendisk_major_index(int);
-struct gendisk *dasd_gendisk_from_devindex(int);
+int dasd_gendisk_index_major(int);
+struct gendisk *dasd_gendisk_alloc(char *, int);
+void dasd_gendisk_free(struct gendisk *);
void dasd_setup_partitions(dasd_device_t *);
void dasd_destroy_partitions(dasd_device_t *);
diff -urN linux-2.5.39/drivers/s390/block/dasd_ioctl.c linux-2.5.39-s390/drivers/s390/block/dasd_ioctl.c
--- linux-2.5.39/drivers/s390/block/dasd_ioctl.c Fri Sep 27 23:50:20 2002
+++ linux-2.5.39-s390/drivers/s390/block/dasd_ioctl.c Mon Sep 30 13:25:48 2002
@@ -91,6 +91,7 @@
dasd_devmap_t *devmap;
dasd_device_t *device;
dasd_ioctl_list_t *ioctl;
+ struct block_device *bdev;
struct list_head *l;
const char *dir;
int rc;
@@ -101,13 +102,17 @@
PRINT_DEBUG("empty data ptr");
return -EINVAL;
}
- devmap = dasd_devmap_from_kdev(inp->i_rdev);
+ bdev = bdget(kdev_t_to_nr(inp->i_rdev));
+ if (!bdev)
+ return -EINVAL;
+
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device)) {
MESSAGE(KERN_WARNING,
- "No device registered as device (%d:%d)",
- major(inp->i_rdev), minor(inp->i_rdev));
+ "No device registered as device %s", bdevname(bdev));
+ bdput(bdev);
return -EINVAL;
}
dir = _IOC_DIR (no) == _IOC_NONE ? "0" :
@@ -125,11 +130,12 @@
if (ioctl->owner) {
if (try_inc_mod_count(ioctl->owner) != 0)
continue;
- rc = ioctl->handler(inp, no, data);
+ rc = ioctl->handler(bdev, no, data);
__MOD_DEC_USE_COUNT(ioctl->owner);
} else
- rc = ioctl->handler(inp, no, data);
+ rc = ioctl->handler(bdev, no, data);
dasd_put_device(devmap);
+ bdput(bdev);
return rc;
}
}
@@ -138,10 +144,12 @@
"unknown ioctl 0x%08x=%s'0x%x'%d(%d) data %8lx", no,
dir, _IOC_TYPE(no), _IOC_NR(no), _IOC_SIZE(no), data);
dasd_put_device(devmap);
+ bdput(bdev);
return -ENOTTY;
}
-static int dasd_ioctl_api_version(void *inp, int no, long args)
+static int
+dasd_ioctl_api_version(struct block_device *bdev, int no, long args)
{
int ver = DASD_API_VERSION;
return put_user(ver, (int *) args);
@@ -150,7 +158,8 @@
/*
* Enable device.
*/
-static int dasd_ioctl_enable(void *inp, int no, long args)
+static int
+dasd_ioctl_enable(struct block_device *bdev, int no, long args)
{
dasd_devmap_t *devmap;
dasd_device_t *device;
@@ -158,7 +167,7 @@
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- devmap = dasd_devmap_from_kdev(((struct inode *) inp)->i_rdev);
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -172,14 +181,15 @@
/*
* Disable device.
*/
-static int dasd_ioctl_disable(void *inp, int no, long args)
+static int
+dasd_ioctl_disable(struct block_device *bdev, int no, long args)
{
dasd_devmap_t *devmap;
dasd_device_t *device;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- devmap = dasd_devmap_from_kdev(((struct inode *) inp)->i_rdev);
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -245,7 +255,8 @@
/*
* Format device.
*/
-static int dasd_ioctl_format(void *inp, int no, long args)
+static int
+dasd_ioctl_format(struct block_device *bdev, int no, long args)
{
dasd_devmap_t *devmap;
dasd_device_t *device;
@@ -257,8 +268,8 @@
if (!args)
return -EINVAL;
/* fdata == NULL is no longer a valid arg to dasd_format ! */
- partn = minor(((struct inode *) inp)->i_rdev) & DASD_PARTN_MASK;
- devmap = dasd_devmap_from_kdev(((struct inode *) inp)->i_rdev);
+ partn = MINOR(bdev->bd_dev) & DASD_PARTN_MASK;
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -283,14 +294,15 @@
/*
* Reset device profile information
*/
-static int dasd_ioctl_reset_profile(void *inp, int no, long args)
+static int
+dasd_ioctl_reset_profile(struct block_device *bdev, int no, long args)
{
dasd_devmap_t *devmap;
dasd_device_t *device;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- devmap = dasd_devmap_from_kdev(((struct inode *) inp)->i_rdev);
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -303,13 +315,14 @@
/*
* Return device profile information
*/
-static int dasd_ioctl_read_profile(void *inp, int no, long args)
+static int
+dasd_ioctl_read_profile(struct block_device *bdev, int no, long args)
{
dasd_devmap_t *devmap;
dasd_device_t *device;
int rc;
- devmap = dasd_devmap_from_kdev(((struct inode *) inp)->i_rdev);
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -322,12 +335,14 @@
return rc;
}
#else
-static int dasd_ioctl_reset_profile(void *inp, int no, long args)
+static int
+dasd_ioctl_reset_profile(struct block_device *bdev, int no, long args)
{
return -ENOSYS;
}
-static int dasd_ioctl_read_profile(void *inp, int no, long args)
+static int
+dasd_ioctl_read_profile(struct block_device *bdev, int no, long args)
{
return -ENOSYS;
}
@@ -336,15 +351,16 @@
/*
* Return dasd information. Used for BIODASDINFO and BIODASDINFO2.
*/
-static int dasd_ioctl_information(void *inp, int no, long args)
+static int
+dasd_ioctl_information(struct block_device *bdev, int no, long args)
{
dasd_devmap_t *devmap;
dasd_device_t *device;
- dasd_information2_t dasd_info;
+ dasd_information2_t *dasd_info;
unsigned long flags;
int rc;
- devmap = dasd_devmap_from_kdev(((struct inode *) inp)->i_rdev);
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -354,20 +370,26 @@
return -EINVAL;
}
- rc = device->discipline->fill_info(device, &dasd_info);
+ dasd_info = kmalloc(sizeof(dasd_information2_t), GFP_KERNEL);
+ if (dasd_info == NULL) {
+ dasd_put_device(devmap);
+ return -ENOMEM;
+ }
+ rc = device->discipline->fill_info(device, dasd_info);
if (rc) {
dasd_put_device(devmap);
+ kfree(dasd_info);
return rc;
}
- dasd_info.devno = device->devinfo.devno;
- dasd_info.schid = device->devinfo.irq;
- dasd_info.cu_type = device->devinfo.sid_data.cu_type;
- dasd_info.cu_model = device->devinfo.sid_data.cu_model;
- dasd_info.dev_type = device->devinfo.sid_data.dev_type;
- dasd_info.dev_model = device->devinfo.sid_data.dev_model;
- dasd_info.open_count = atomic_read(&device->open_count);
- dasd_info.status = device->state;
+ dasd_info->devno = device->devinfo.devno;
+ dasd_info->schid = device->devinfo.irq;
+ dasd_info->cu_type = device->devinfo.sid_data.cu_type;
+ dasd_info->cu_model = device->devinfo.sid_data.cu_model;
+ dasd_info->dev_type = device->devinfo.sid_data.dev_type;
+ dasd_info->dev_model = device->devinfo.sid_data.dev_model;
+ dasd_info->open_count = atomic_read(&device->open_count);
+ dasd_info->status = device->state;
/*
* check if device is really formatted
@@ -375,16 +397,16 @@
*/
if ((device->state < DASD_STATE_READY) ||
(dasd_check_blocksize(device->bp_block)))
- dasd_info.format = DASD_FORMAT_NONE;
+ dasd_info->format = DASD_FORMAT_NONE;
- dasd_info.features = devmap->features;
+ dasd_info->features = devmap->features;
if (device->discipline)
- memcpy(dasd_info.type, device->discipline->name, 4);
+ memcpy(dasd_info->type, device->discipline->name, 4);
else
- memcpy(dasd_info.type, "none", 4);
- dasd_info.req_queue_len = 0;
- dasd_info.chanq_len = 0;
+ memcpy(dasd_info->type, "none", 4);
+ dasd_info->req_queue_len = 0;
+ dasd_info->chanq_len = 0;
if (device->request_queue->request_fn) {
struct list_head *l;
#ifdef DASD_EXTENDED_PROFILING
@@ -392,45 +414,46 @@
struct list_head *l;
spin_lock_irqsave(&device->lock, flags);
list_for_each(l, &device->request_queue->queue_head)
- dasd_info.req_queue_len++;
+ dasd_info->req_queue_len++;
spin_unlock_irqrestore(&device->lock, flags);
}
#endif /* DASD_EXTENDED_PROFILING */
spin_lock_irqsave(get_irq_lock(device->devinfo.irq), flags);
list_for_each(l, &device->ccw_queue)
- dasd_info.chanq_len++;
+ dasd_info->chanq_len++;
spin_unlock_irqrestore(get_irq_lock(device->devinfo.irq),
flags);
}
rc = 0;
- if (copy_to_user((long *) args, (long *) &dasd_info,
+ if (copy_to_user((long *) args, (long *) dasd_info,
((no == (unsigned int) BIODASDINFO2) ?
sizeof (dasd_information2_t) :
sizeof (dasd_information_t))))
rc = -EFAULT;
dasd_put_device(devmap);
+ kfree(dasd_info);
return rc;
}
/*
* Set read only
*/
-static int dasd_ioctl_set_ro(void *inp, int no, long args)
+static int
+dasd_ioctl_set_ro(struct block_device *bdev, int no, long args)
{
dasd_devmap_t *devmap;
dasd_device_t *device;
- int major, minor;
int intval, i;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- if (minor(((struct inode *) inp)->i_rdev) & DASD_PARTN_MASK)
+ if (MINOR(bdev->bd_dev) & DASD_PARTN_MASK)
// ro setting is not allowed for partitions
return -EINVAL;
if (get_user(intval, (int *) args))
return -EFAULT;
- devmap = dasd_devmap_from_kdev(((struct inode *) inp)->i_rdev);
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -439,10 +462,8 @@
devmap->features |= DASD_FEATURE_READONLY;
else
devmap->features &= ~DASD_FEATURE_READONLY;
- major = major(device->kdev);
- minor = minor(device->kdev);
for (i = 0; i < (1 << DASD_PARTN_BITS); i++)
- set_device_ro(mk_kdev(major, minor + i), intval);
+ set_device_ro(to_kdev_t(bdev->bd_dev + i), intval);
dasd_put_device(devmap);
return 0;
}
@@ -450,16 +471,15 @@
/*
* Return disk geometry.
*/
-static int dasd_ioctl_getgeo(void *inp, int no, long args)
+static int
+dasd_ioctl_getgeo(struct block_device *bdev, int no, long args)
{
struct hd_geometry geo = { 0, };
- struct inode *inode = inp;
dasd_devmap_t *devmap;
dasd_device_t *device;
- kdev_t kdev = inode->i_rdev;
int rc;
- devmap = dasd_devmap_from_kdev(kdev);
+ devmap = dasd_devmap_from_bdev(bdev);
device = (devmap != NULL) ?
dasd_get_device(devmap) : ERR_PTR(-ENODEV);
if (IS_ERR(device))
@@ -468,7 +488,7 @@
if (device != NULL && device->discipline != NULL &&
device->discipline->fill_geometry != NULL) {
device->discipline->fill_geometry(device, &geo);
- geo.start = get_start_sect(inode->i_bdev);
+ geo.start = get_start_sect(bdev);
if (copy_to_user((struct hd_geometry *) args, &geo,
sizeof (struct hd_geometry)))
rc = -EFAULT;
diff -urN linux-2.5.39/drivers/s390/block/dasd_proc.c linux-2.5.39-s390/drivers/s390/block/dasd_proc.c
--- linux-2.5.39/drivers/s390/block/dasd_proc.c Fri Sep 27 23:49:14 2002
+++ linux-2.5.39-s390/drivers/s390/block/dasd_proc.c Mon Sep 30 13:25:48 2002
@@ -15,6 +15,7 @@
#include <linux/config.h>
#include <linux/version.h>
#include <linux/ctype.h>
+#include <linux/vmalloc.h>
#include <asm/debug.h>
#include <asm/irq.h>
@@ -123,7 +124,7 @@
}
features = dasd_feature_list(str, &str);
/* Negative numbers in from/to/features indicate errors */
- if (from < 0 || to < 0 || features < 0)
+ if (from < 0 || to < 0 || from > 65546 || to > 65536 || features < 0)
goto out_error;
if (add_or_set == 0) {
@@ -152,10 +153,8 @@
dasd_devices_print(dasd_devmap_t *devmap, char *str)
{
dasd_device_t *device;
- struct gendisk *gdp;
- char buffer[7];
char *substr;
- int minor;
+ int major, minor;
int len;
device = dasd_get_device(devmap);
@@ -169,11 +168,11 @@
else
len += sprintf(str + len, "(none)");
/* Print kdev. */
- gdp = dasd_gendisk_from_devindex(devmap->devindex);
- minor = devmap->devindex % DASD_PER_MAJOR;
- len += sprintf(str + len, " at (%3d:%3d)", gdp->major, minor);
+ major = MAJOR(device->bdev->bd_dev);
+ minor = MINOR(device->bdev->bd_dev);
+ len += sprintf(str + len, " at (%3d:%3d)", major, minor);
/* Print device name. */
- len += sprintf(str + len, " is %-7s", gdp->major_name);
+ len += sprintf(str + len, " is %-7s", device->name);
/* Print devices features. */
substr = (devmap->features & DASD_FEATURE_READONLY) ? "(ro)" : " ";
len += sprintf(str + len, "%4s: ", substr);
diff -urN linux-2.5.39/include/asm-s390/dasd.h linux-2.5.39-s390/include/asm-s390/dasd.h
--- linux-2.5.39/include/asm-s390/dasd.h Fri Sep 27 23:49:09 2002
+++ linux-2.5.39-s390/include/asm-s390/dasd.h Mon Sep 30 13:25:48 2002
@@ -13,6 +13,8 @@
* 12/06/01 DASD_API_VERSION 2 - binary compatible to 0 (new BIODASDINFO2)
* 01/23/02 DASD_API_VERSION 3 - added BIODASDPSRD (and BIODASDENAPAV) IOCTL
* 02/15/02 DASD_API_VERSION 4 - added BIODASDSATTR IOCTL
+ * ##/##/## DASD_API_VERSION 5 - added boxed dasd support TOBEDONE
+ * 21/06/02 DASD_API_VERSION 6 - fixed HDIO_GETGEO: geo.start is in sectors!
*
*/
@@ -22,7 +24,7 @@
#define DASD_IOCTL_LETTER 'D'
-#define DASD_API_VERSION 4
+#define DASD_API_VERSION 6
/*
* struct dasd_information2_t
diff -urN linux-2.5.39/include/asm-s390x/dasd.h linux-2.5.39-s390/include/asm-s390x/dasd.h
--- linux-2.5.39/include/asm-s390x/dasd.h Fri Sep 27 23:49:18 2002
+++ linux-2.5.39-s390/include/asm-s390x/dasd.h Mon Sep 30 13:25:48 2002
@@ -13,6 +13,8 @@
* 12/06/01 DASD_API_VERSION 2 - binary compatible to 0 (new BIODASDINFO2)
* 01/23/02 DASD_API_VERSION 3 - added BIODASDPSRD (and BIODASDENAPAV) IOCTL
* 02/15/02 DASD_API_VERSION 4 - added BIODASDSATTR IOCTL
+ * ##/##/## DASD_API_VERSION 5 - added boxed dasd support TOBEDONE
+ * 21/06/02 DASD_API_VERSION 6 - fixed HDIO_GETGEO: geo.start is in sectors!
*
*/
@@ -22,7 +24,7 @@
#define DASD_IOCTL_LETTER 'D'
-#define DASD_API_VERSION 4
+#define DASD_API_VERSION 6
/*
* struct dasd_information2_t
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