From: Frank Munzert <munzert@xxxxxxxxxx>
Signed-off-by: Frank Munzert <munzert@xxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
---
Documentation/s390/kmsg/vmur | 33 +++++++++++++++++++++++++++++++++
drivers/s390/char/vmur.c | 13 ++++++++-----
2 files changed, 41 insertions(+), 5 deletions(-)
Index: quilt-2.6/Documentation/s390/kmsg/vmur
===================================================================
--- /dev/null
+++ quilt-2.6/Documentation/s390/kmsg/vmur
@@ -0,0 +1,33 @@
+/*?
+ * Tag: vmur.1
+ * Text: "The %s cannot be loaded without z/VM"
+ * Severity: Error
+ * Parameter:
+ * @1: z/VM virtual unit record device driver
+ * Description:
+ * The z/VM virtual unit record device driver provides Linux with access to
+ * z/VM virtual unit record devices like punch card readers, card punches, and
+ * line printers. On Linux instances that run in environments other than the
+ * z/VM hypervisor, the device driver does not provide any useful function and
+ * the corresponding vmur module cannot be loaded.
+ * User action:
+ * Load the vmur module only on Linux instances that run as guest operating
+ * systems of the z/VM hypervisor. If the z/VM virtual unit record device
+ * has been compiled into the kernel, ignore this message.
+ */
+
+/*?
+ * Tag: vmur.2
+ * Text: "Kernel function alloc_chrdev_region failed with error code %d"
+ * Severity: Error
+ * Parameter:
+ * @1: error code according to errno definitions
+ * Description:
+ * The z/VM virtual unit record device driver (vmur) needs to register a range
+ * of character device minor numbers from 0x0000 to 0xffff.
+ * This registration failed, probably because of memory constraints.
+ * User action:
+ * Free some memory and reload the vmur module. If the z/VM virtual unit
+ * record device driver has been compiled into the kernel reboot Linux.
+ * Consider assigning more memory to your LPAR or z/VM guest virtual machine.
+ */
Index: quilt-2.6/drivers/s390/char/vmur.c
===================================================================
--- quilt-2.6.orig/drivers/s390/char/vmur.c
+++ quilt-2.6/drivers/s390/char/vmur.c
@@ -16,6 +16,7 @@
#include <asm/ccwdev.h>
#include <asm/debug.h>
#include <asm/diag.h>
+#include <asm/kmsg.h>
#include "vmur.h"
@@ -40,7 +41,7 @@ MODULE_AUTHOR("IBM Corporation");
MODULE_DESCRIPTION("s390 z/VM virtual unit record device driver");
MODULE_LICENSE("GPL");
-#define PRINTK_HEADER "vmur: "
+#define KMSG_COMPONENT "vmur"
static dev_t ur_first_dev_maj_min;
static struct class *vmur_class;
@@ -988,7 +989,8 @@ static int __init ur_init(void)
dev_t dev;
if (!MACHINE_IS_VM) {
- PRINT_ERR("%s is only available under z/VM.\n", ur_banner);
+ kmsg_err(1, "The %s cannot be loaded without z/VM\n",
+ ur_banner);
return -ENODEV;
}
@@ -1007,7 +1009,8 @@ static int __init ur_init(void)
rc = alloc_chrdev_region(&dev, 0, NUM_MINORS, "vmur");
if (rc) {
- PRINT_ERR("alloc_chrdev_region failed: err = %d\n", rc);
+ kmsg_err(2, "Kernel function alloc_chrdev_region failed with "
+ "error code %d\n", rc);
goto fail_unregister_driver;
}
ur_first_dev_maj_min = MKDEV(MAJOR(dev), 0);
@@ -1017,7 +1020,7 @@ static int __init ur_init(void)
rc = PTR_ERR(vmur_class);
goto fail_unregister_region;
}
- PRINT_INFO("%s loaded.\n", ur_banner);
+ kmsg_info(0, "%s loaded.\n", ur_banner);
return 0;
fail_unregister_region:
@@ -1035,7 +1038,7 @@ static void __exit ur_exit(void)
unregister_chrdev_region(ur_first_dev_maj_min, NUM_MINORS);
ccw_driver_unregister(&ur_driver);
debug_unregister(vmur_dbf);
- PRINT_INFO("%s unloaded.\n", ur_banner);
+ kmsg_info(0, "%s unloaded.\n", ur_banner);
}
module_init(ur_init);
--
blue skies,
Martin.
"Reality continues to ruin my life." - Calvin.
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