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-rw-r--r--drivers/s390/block/dasd.c38
-rw-r--r--drivers/s390/block/dasd_genhd.c2
-rw-r--r--drivers/s390/block/dasd_int.h7
-rw-r--r--drivers/s390/block/dasd_proc.c3
-rw-r--r--fs/partitions/ibm.c16
5 files changed, 46 insertions, 20 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index af1d5b404ce..33157c84d1d 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -215,9 +215,10 @@ dasd_state_basic_to_known(struct dasd_device * device)
* interrupt for this detection ccw uses the kernel event daemon to
* trigger the call to dasd_change_state. All this is done in the
* discipline code, see dasd_eckd.c.
- * After the analysis ccw is done (do_analysis returned 0 or error)
- * the block device is setup. Either a fake disk is added to allow
- * formatting or a proper device request queue is created.
+ * After the analysis ccw is done (do_analysis returned 0) the block
+ * device is setup.
+ * In case the analysis returns an error, the device setup is stopped
+ * (a fake disk was already added to allow formatting).
*/
static inline int
dasd_state_basic_to_ready(struct dasd_device * device)
@@ -227,13 +228,19 @@ dasd_state_basic_to_ready(struct dasd_device * device)
rc = 0;
if (device->discipline->do_analysis != NULL)
rc = device->discipline->do_analysis(device);
- if (rc)
+ if (rc) {
+ if (rc != -EAGAIN)
+ device->state = DASD_STATE_UNFMT;
return rc;
+ }
+ /* make disk known with correct capacity */
dasd_setup_queue(device);
+ set_capacity(device->gdp, device->blocks << device->s2b_shift);
device->state = DASD_STATE_READY;
- if (dasd_scan_partitions(device) != 0)
+ rc = dasd_scan_partitions(device);
+ if (rc)
device->state = DASD_STATE_BASIC;
- return 0;
+ return rc;
}
/*
@@ -254,6 +261,15 @@ dasd_state_ready_to_basic(struct dasd_device * device)
}
/*
+ * Back to basic.
+ */
+static inline void
+dasd_state_unfmt_to_basic(struct dasd_device * device)
+{
+ device->state = DASD_STATE_BASIC;
+}
+
+/*
* Make the device online and schedule the bottom half to start
* the requeueing of requests from the linux request queue to the
* ccw queue.
@@ -319,8 +335,12 @@ dasd_decrease_state(struct dasd_device *device)
if (device->state == DASD_STATE_READY &&
device->target <= DASD_STATE_BASIC)
dasd_state_ready_to_basic(device);
-
- if (device->state == DASD_STATE_BASIC &&
+
+ if (device->state == DASD_STATE_UNFMT &&
+ device->target <= DASD_STATE_BASIC)
+ dasd_state_unfmt_to_basic(device);
+
+ if (device->state == DASD_STATE_BASIC &&
device->target <= DASD_STATE_KNOWN)
dasd_state_basic_to_known(device);
@@ -1722,7 +1742,7 @@ dasd_open(struct inode *inp, struct file *filp)
goto out;
}
- if (device->state < DASD_STATE_BASIC) {
+ if (device->state <= DASD_STATE_BASIC) {
DBF_DEV_EVENT(DBF_ERR, device, " %s",
" Cannot open unrecognized device");
rc = -ENODEV;
diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index 65dc844b975..fce2835e7d1 100644
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -100,8 +100,6 @@ dasd_scan_partitions(struct dasd_device * device)
{
struct block_device *bdev;
- /* Make the disk known. */
- set_capacity(device->gdp, device->blocks << device->s2b_shift);
bdev = bdget_disk(device->gdp, 0);
if (!bdev || blkdev_get(bdev, FMODE_READ, 1) < 0)
return -ENODEV;
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 0592354cc60..7cb0b9e78a6 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -26,7 +26,7 @@
* new: the dasd_device structure is allocated.
* known: the discipline for the device is identified.
* basic: the device can do basic i/o.
- * accept: the device is analysed (format is known).
+ * unfmt: the device could not be analyzed (format is unknown).
* ready: partition detection is done and the device is can do block io.
* online: the device accepts requests from the block device queue.
*
@@ -47,8 +47,9 @@
#define DASD_STATE_NEW 0
#define DASD_STATE_KNOWN 1
#define DASD_STATE_BASIC 2
-#define DASD_STATE_READY 3
-#define DASD_STATE_ONLINE 4
+#define DASD_STATE_UNFMT 3
+#define DASD_STATE_READY 4
+#define DASD_STATE_ONLINE 5
#include <linux/module.h>
#include <linux/wait.h>
diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c
index 2d5da3c75ca..4c1acc8daa8 100644
--- a/drivers/s390/block/dasd_proc.c
+++ b/drivers/s390/block/dasd_proc.c
@@ -93,6 +93,9 @@ dasd_devices_show(struct seq_file *m, void *v)
case DASD_STATE_BASIC:
seq_printf(m, "basic");
break;
+ case DASD_STATE_UNFMT:
+ seq_printf(m, "unnformatted");
+ break;
case DASD_STATE_READY:
case DASD_STATE_ONLINE:
seq_printf(m, "active ");
diff --git a/fs/partitions/ibm.c b/fs/partitions/ibm.c
index 78010ad60e4..1e4a93835fe 100644
--- a/fs/partitions/ibm.c
+++ b/fs/partitions/ibm.c
@@ -52,6 +52,7 @@ int
ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
{
int blocksize, offset, size;
+ loff_t i_size;
dasd_information_t *info;
struct hd_geometry *geo;
char type[5] = {0,};
@@ -63,6 +64,13 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
unsigned char *data;
Sector sect;
+ blocksize = bdev_hardsect_size(bdev);
+ if (blocksize <= 0)
+ return 0;
+ i_size = i_size_read(bdev->bd_inode);
+ if (i_size == 0)
+ return 0;
+
if ((info = kmalloc(sizeof(dasd_information_t), GFP_KERNEL)) == NULL)
goto out_noinfo;
if ((geo = kmalloc(sizeof(struct hd_geometry), GFP_KERNEL)) == NULL)
@@ -73,9 +81,6 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
if (ioctl_by_bdev(bdev, BIODASDINFO, (unsigned long)info) != 0 ||
ioctl_by_bdev(bdev, HDIO_GETGEO, (unsigned long)geo) != 0)
goto out_noioctl;
-
- if ((blocksize = bdev_hardsect_size(bdev)) <= 0)
- goto out_badsect;
/*
* Get volume label, extract name and type.
@@ -111,7 +116,7 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
} else {
printk("CMS1/%8s:", name);
offset = (info->label_block + 1);
- size = bdev->bd_inode->i_size >> 9;
+ size = i_size >> 9;
}
put_partition(state, 1, offset*(blocksize >> 9),
size-offset*(blocksize >> 9));
@@ -168,7 +173,7 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
else
printk("(nonl)/%8s:", name);
offset = (info->label_block + 1);
- size = (bdev->bd_inode->i_size >> 9);
+ size = i_size >> 9;
put_partition(state, 1, offset*(blocksize >> 9),
size-offset*(blocksize >> 9));
}
@@ -180,7 +185,6 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
return 1;
out_readerr:
-out_badsect:
out_noioctl:
kfree(label);
out_nolab:
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 21:57:25 +0000