diff options
| -rw-r--r-- | drivers/s390/block/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/s390/block/Makefile | 1 | ||||
| -rw-r--r-- | drivers/s390/block/dasd_cmb.c | 128 | ||||
| -rw-r--r-- | drivers/s390/block/dasd_ioctl.c | 22 |
4 files changed, 22 insertions, 139 deletions
diff --git a/drivers/s390/block/Kconfig b/drivers/s390/block/Kconfig index 6f50cc9323d..baf9cc3ebae 100644 --- a/drivers/s390/block/Kconfig +++ b/drivers/s390/block/Kconfig @@ -55,14 +55,4 @@ config DASD_DIAG Disks under VM. If you are not running under VM or unsure what it is, say "N". -config DASD_CMB - tristate "Compatibility interface for DASD channel measurement blocks" - depends on DASD - help - This driver provides an additional interface to the channel measurement - facility, which is normally accessed though sysfs, with a set of - ioctl functions specific to the dasd driver. - This is only needed if you want to use applications written for - linux-2.4 dasd channel measurement facility interface. - endif diff --git a/drivers/s390/block/Makefile b/drivers/s390/block/Makefile index 58c6780134f..163e97554f5 100644 --- a/drivers/s390/block/Makefile +++ b/drivers/s390/block/Makefile @@ -12,6 +12,5 @@ obj-$(CONFIG_DASD) += dasd_mod.o obj-$(CONFIG_DASD_DIAG) += dasd_diag_mod.o obj-$(CONFIG_DASD_ECKD) += dasd_eckd_mod.o obj-$(CONFIG_DASD_FBA) += dasd_fba_mod.o -obj-$(CONFIG_DASD_CMB) += dasd_cmb.o obj-$(CONFIG_BLK_DEV_XPRAM) += xpram.o obj-$(CONFIG_DCSSBLK) += dcssblk.o diff --git a/drivers/s390/block/dasd_cmb.c b/drivers/s390/block/dasd_cmb.c deleted file mode 100644 index e88f73ee72c..00000000000 --- a/drivers/s390/block/dasd_cmb.c +++ /dev/null @@ -1,128 +0,0 @@ -/* - * Linux on zSeries Channel Measurement Facility support - * (dasd device driver interface) - * - * Copyright 2000,2003 IBM Corporation - * - * Author: Arnd Bergmann <arndb@de.ibm.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#include <linux/init.h> -#include <linux/module.h> -#include <asm/ccwdev.h> -#include <asm/cmb.h> - -#include "dasd_int.h" - -static int -dasd_ioctl_cmf_enable(struct block_device *bdev, int no, long args) -{ - struct dasd_device *device; - - device = bdev->bd_disk->private_data; - if (!device) - return -EINVAL; - - return enable_cmf(device->cdev); -} - -static int -dasd_ioctl_cmf_disable(struct block_device *bdev, int no, long args) -{ - struct dasd_device *device; - - device = bdev->bd_disk->private_data; - if (!device) - return -EINVAL; - - return disable_cmf(device->cdev); -} - -static int -dasd_ioctl_readall_cmb(struct block_device *bdev, int no, long args) -{ - struct dasd_device *device; - struct cmbdata __user *udata; - struct cmbdata data; - size_t size; - int ret; - - device = bdev->bd_disk->private_data; - if (!device) - return -EINVAL; - udata = (void __user *) args; - size = _IOC_SIZE(no); - - if (!access_ok(VERIFY_WRITE, udata, size)) - return -EFAULT; - ret = cmf_readall(device->cdev, &data); - if (ret) - return ret; - if (copy_to_user(udata, &data, min(size, sizeof(*udata)))) - return -EFAULT; - return 0; -} - -/* module initialization below here. dasd already provides a mechanism - * to dynamically register ioctl functions, so we simply use this. */ -static inline int -ioctl_reg(unsigned int no, dasd_ioctl_fn_t handler) -{ - return dasd_ioctl_no_register(THIS_MODULE, no, handler); -} - -static inline void -ioctl_unreg(unsigned int no, dasd_ioctl_fn_t handler) -{ - dasd_ioctl_no_unregister(THIS_MODULE, no, handler); -} - -static void -dasd_cmf_exit(void) -{ - ioctl_unreg(BIODASDCMFENABLE, dasd_ioctl_cmf_enable); - ioctl_unreg(BIODASDCMFDISABLE, dasd_ioctl_cmf_disable); - ioctl_unreg(BIODASDREADALLCMB, dasd_ioctl_readall_cmb); -} - -static int __init -dasd_cmf_init(void) -{ - int ret; - ret = ioctl_reg (BIODASDCMFENABLE, dasd_ioctl_cmf_enable); - if (ret) - goto err; - ret = ioctl_reg (BIODASDCMFDISABLE, dasd_ioctl_cmf_disable); - if (ret) - goto err; - ret = ioctl_reg (BIODASDREADALLCMB, dasd_ioctl_readall_cmb); - if (ret) - goto err; - - return 0; -err: - dasd_cmf_exit(); - - return ret; -} - -module_init(dasd_cmf_init); -module_exit(dasd_cmf_exit); - -MODULE_AUTHOR("Arnd Bergmann <arndb@de.ibm.com>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("channel measurement facility interface for dasd\n" - "Copyright 2003 IBM Corporation\n"); diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index bb6caf46bbd..c8319bef273 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -16,6 +16,7 @@ #include <linux/blkpg.h> #include <asm/ccwdev.h> +#include <asm/cmb.h> #include <asm/uaccess.h> /* This is ugly... */ @@ -406,6 +407,21 @@ dasd_ioctl_set_ro(struct block_device *bdev, void __user *argp) return dasd_set_feature(device->cdev, DASD_FEATURE_READONLY, intval); } +static int +dasd_ioctl_readall_cmb(struct dasd_device *device, unsigned int cmd, + unsigned long arg) +{ + struct cmbdata __user *argp = (void __user *) arg; + size_t size = _IOC_SIZE(cmd); + struct cmbdata data; + int ret; + + ret = cmf_readall(device->cdev, &data); + if (!ret && copy_to_user(argp, &data, min(size, sizeof(*argp)))) + return -EFAULT; + return ret; +} + int dasd_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) @@ -447,6 +463,12 @@ dasd_ioctl(struct inode *inode, struct file *file, return dasd_ioctl_set_ro(bdev, argp); case DASDAPIVER: return dasd_ioctl_api_version(argp); + case BIODASDCMFENABLE: + return enable_cmf(device->cdev); + case BIODASDCMFDISABLE: + return disable_cmf(device->cdev); + case BIODASDREADALLCMB: + return dasd_ioctl_readall_cmb(device, cmd, arg); default: /* if the discipline has an ioctl method try it. */ if (device->discipline->ioctl) { |