module_param(check_media_type, bool, 0);
module_param(mrw_format_restart, bool, 0);
-static DEFINE_SPINLOCK(cdrom_lock);
+static DEFINE_MUTEX(cdrom_mutex);
static const char *mrw_format_status[] = {
"not mrw",
cdo->generic_packet = cdrom_dummy_generic_packet;
cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" registered\n", cdi->name);
- spin_lock(&cdrom_lock);
+ mutex_lock(&cdrom_mutex);
cdi->next = topCdromPtr;
topCdromPtr = cdi;
- spin_unlock(&cdrom_lock);
+ mutex_unlock(&cdrom_mutex);
return 0;
}
#undef ENSURE
cdinfo(CD_OPEN, "entering unregister_cdrom\n");
prev = NULL;
- spin_lock(&cdrom_lock);
+ mutex_lock(&cdrom_mutex);
cdi = topCdromPtr;
while (cdi && cdi != unreg) {
prev = cdi;
}
if (cdi == NULL) {
- spin_unlock(&cdrom_lock);
+ mutex_unlock(&cdrom_mutex);
return -2;
}
if (prev)
else
topCdromPtr = cdi->next;
- spin_unlock(&cdrom_lock);
+ mutex_unlock(&cdrom_mutex);
if (cdi->exit)
cdi->exit(cdi);
check_disk_change(ip->i_bdev);
return 0;
err_release:
+ if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) {
+ cdi->ops->lock_door(cdi, 0);
+ cdinfo(CD_OPEN, "door unlocked.\n");
+ }
cdi->ops->release(cdi);
err:
cdi->use_count--;
is the default case! */
cdinfo(CD_OPEN, "bummer. wrong media type.\n");
cdinfo(CD_WARNING, "pid %d must open device O_NONBLOCK!\n",
- (unsigned int)current->pid);
+ (unsigned int)task_pid_nr(current));
ret=-EMEDIUMTYPE;
goto clean_up_and_return;
}
static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf,
int lba, int nframes)
{
- request_queue_t *q = cdi->disk->queue;
+ struct request_queue *q = cdi->disk->queue;
struct request *rq;
struct bio *bio;
unsigned int len;
return -EACCES;
if (!CDROM_CAN(CDC_RESET))
return -ENOSYS;
- invalidate_bdev(bdev, 0);
+ invalidate_bdev(bdev);
return cdi->ops->reset(cdi);
}
{
void __user *argp = (void __user *)arg;
int ret;
+ struct gendisk *disk = ip->i_bdev->bd_disk;
/*
* Try the generic SCSI command ioctl's first.
*/
- ret = scsi_cmd_ioctl(file, ip->i_bdev->bd_disk, cmd, argp);
+ ret = scsi_cmd_ioctl(file, disk->queue, disk, cmd, argp);
if (ret != -ENOTTY)
return ret;
int check; /* check media type */
} cdrom_sysctl_settings;
+enum cdrom_print_option {
+ CTL_NAME,
+ CTL_SPEED,
+ CTL_SLOTS,
+ CTL_CAPABILITY
+};
+
+static int cdrom_print_info(const char *header, int val, char *info,
+ int *pos, enum cdrom_print_option option)
+{
+ const int max_size = sizeof(cdrom_sysctl_settings.info);
+ struct cdrom_device_info *cdi;
+ int ret;
+
+ ret = scnprintf(info + *pos, max_size - *pos, header);
+ if (!ret)
+ return 1;
+
+ *pos += ret;
+
+ for (cdi = topCdromPtr; cdi; cdi = cdi->next) {
+ switch (option) {
+ case CTL_NAME:
+ ret = scnprintf(info + *pos, max_size - *pos,
+ "\t%s", cdi->name);
+ break;
+ case CTL_SPEED:
+ ret = scnprintf(info + *pos, max_size - *pos,
+ "\t%d", cdi->speed);
+ break;
+ case CTL_SLOTS:
+ ret = scnprintf(info + *pos, max_size - *pos,
+ "\t%d", cdi->capacity);
+ break;
+ case CTL_CAPABILITY:
+ ret = scnprintf(info + *pos, max_size - *pos,
+ "\t%d", CDROM_CAN(val) != 0);
+ break;
+ default:
+ printk(KERN_INFO "cdrom: invalid option%d\n", option);
+ return 1;
+ }
+ if (!ret)
+ return 1;
+ *pos += ret;
+ }
+
+ return 0;
+}
+
static int cdrom_sysctl_info(ctl_table *ctl, int write, struct file * filp,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
- int pos;
- struct cdrom_device_info *cdi;
+ int pos;
char *info = cdrom_sysctl_settings.info;
+ const int max_size = sizeof(cdrom_sysctl_settings.info);
if (!*lenp || (*ppos && !write)) {
*lenp = 0;
return 0;
}
+ mutex_lock(&cdrom_mutex);
+
pos = sprintf(info, "CD-ROM information, " VERSION "\n");
- pos += sprintf(info+pos, "\ndrive name:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%s", cdi->name);
-
- pos += sprintf(info+pos, "\ndrive speed:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", cdi->speed);
-
- pos += sprintf(info+pos, "\ndrive # of slots:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", cdi->capacity);
-
- pos += sprintf(info+pos, "\nCan close tray:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_CLOSE_TRAY) != 0);
-
- pos += sprintf(info+pos, "\nCan open tray:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_OPEN_TRAY) != 0);
-
- pos += sprintf(info+pos, "\nCan lock tray:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_LOCK) != 0);
-
- pos += sprintf(info+pos, "\nCan change speed:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_SELECT_SPEED) != 0);
-
- pos += sprintf(info+pos, "\nCan select disk:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_SELECT_DISC) != 0);
-
- pos += sprintf(info+pos, "\nCan read multisession:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MULTI_SESSION) != 0);
-
- pos += sprintf(info+pos, "\nCan read MCN:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MCN) != 0);
-
- pos += sprintf(info+pos, "\nReports media changed:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MEDIA_CHANGED) != 0);
-
- pos += sprintf(info+pos, "\nCan play audio:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_PLAY_AUDIO) != 0);
-
- pos += sprintf(info+pos, "\nCan write CD-R:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_CD_R) != 0);
-
- pos += sprintf(info+pos, "\nCan write CD-RW:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_CD_RW) != 0);
-
- pos += sprintf(info+pos, "\nCan read DVD:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_DVD) != 0);
-
- pos += sprintf(info+pos, "\nCan write DVD-R:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_DVD_R) != 0);
-
- pos += sprintf(info+pos, "\nCan write DVD-RAM:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_DVD_RAM) != 0);
-
- pos += sprintf(info+pos, "\nCan read MRW:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MRW) != 0);
-
- pos += sprintf(info+pos, "\nCan write MRW:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MRW_W) != 0);
-
- pos += sprintf(info+pos, "\nCan write RAM:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_RAM) != 0);
-
- strcpy(info+pos,"\n\n");
-
- return proc_dostring(ctl, write, filp, buffer, lenp, ppos);
+ if (cdrom_print_info("\ndrive name:\t", 0, info, &pos, CTL_NAME))
+ goto done;
+ if (cdrom_print_info("\ndrive speed:\t", 0, info, &pos, CTL_SPEED))
+ goto done;
+ if (cdrom_print_info("\ndrive # of slots:", 0, info, &pos, CTL_SLOTS))
+ goto done;
+ if (cdrom_print_info("\nCan close tray:\t",
+ CDC_CLOSE_TRAY, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan open tray:\t",
+ CDC_OPEN_TRAY, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan lock tray:\t",
+ CDC_LOCK, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan change speed:",
+ CDC_SELECT_SPEED, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan select disk:",
+ CDC_SELECT_DISC, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan read multisession:",
+ CDC_MULTI_SESSION, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan read MCN:\t",
+ CDC_MCN, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nReports media changed:",
+ CDC_MEDIA_CHANGED, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan play audio:\t",
+ CDC_PLAY_AUDIO, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan write CD-R:\t",
+ CDC_CD_R, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan write CD-RW:",
+ CDC_CD_RW, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan read DVD:\t",
+ CDC_DVD, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan write DVD-R:",
+ CDC_DVD_R, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan write DVD-RAM:",
+ CDC_DVD_RAM, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan read MRW:\t",
+ CDC_MRW, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan write MRW:\t",
+ CDC_MRW_W, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan write RAM:\t",
+ CDC_RAM, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (!scnprintf(info + pos, max_size - pos, "\n\n"))
+ goto done;
+doit:
+ mutex_unlock(&cdrom_mutex);
+ return proc_dostring(ctl, write, filp, buffer, lenp, ppos);
+done:
+ printk(KERN_INFO "cdrom: info buffer too small\n");
+ goto doit;
}
/* Unfortunately, per device settings are not implemented through
static int cdrom_sysctl_handler(ctl_table *ctl, int write, struct file * filp,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
- int *valp = ctl->data;
- int val = *valp;
int ret;
ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
- if (write && *valp != val) {
+ if (write) {
/* we only care for 1 or 0. */
- if (*valp)
- *valp = 1;
- else
- *valp = 0;
+ autoclose = !!cdrom_sysctl_settings.autoclose;
+ autoeject = !!cdrom_sysctl_settings.autoeject;
+ debug = !!cdrom_sysctl_settings.debug;
+ lockdoor = !!cdrom_sysctl_settings.lock;
+ check_media_type = !!cdrom_sysctl_settings.check;
- switch (ctl->ctl_name) {
- case DEV_CDROM_AUTOCLOSE: {
- if (valp == &cdrom_sysctl_settings.autoclose)
- autoclose = cdrom_sysctl_settings.autoclose;
- break;
- }
- case DEV_CDROM_AUTOEJECT: {
- if (valp == &cdrom_sysctl_settings.autoeject)
- autoeject = cdrom_sysctl_settings.autoeject;
- break;
- }
- case DEV_CDROM_DEBUG: {
- if (valp == &cdrom_sysctl_settings.debug)
- debug = cdrom_sysctl_settings.debug;
- break;
- }
- case DEV_CDROM_LOCK: {
- if (valp == &cdrom_sysctl_settings.lock)
- lockdoor = cdrom_sysctl_settings.lock;
- break;
- }
- case DEV_CDROM_CHECK_MEDIA: {
- if (valp == &cdrom_sysctl_settings.check)
- check_media_type = cdrom_sysctl_settings.check;
- break;
- }
- }
/* update the option flags according to the changes. we
don't have per device options through sysctl yet,
but we will have and then this will disappear. */
/* Place files in /proc/sys/dev/cdrom */
static ctl_table cdrom_table[] = {
{
- .ctl_name = DEV_CDROM_INFO,
.procname = "info",
.data = &cdrom_sysctl_settings.info,
.maxlen = CDROM_STR_SIZE,
.proc_handler = &cdrom_sysctl_info,
},
{
- .ctl_name = DEV_CDROM_AUTOCLOSE,
.procname = "autoclose",
.data = &cdrom_sysctl_settings.autoclose,
.maxlen = sizeof(int),
.proc_handler = &cdrom_sysctl_handler,
},
{
- .ctl_name = DEV_CDROM_AUTOEJECT,
.procname = "autoeject",
.data = &cdrom_sysctl_settings.autoeject,
.maxlen = sizeof(int),
.proc_handler = &cdrom_sysctl_handler,
},
{
- .ctl_name = DEV_CDROM_DEBUG,
.procname = "debug",
.data = &cdrom_sysctl_settings.debug,
.maxlen = sizeof(int),
.proc_handler = &cdrom_sysctl_handler,
},
{
- .ctl_name = DEV_CDROM_LOCK,
.procname = "lock",
.data = &cdrom_sysctl_settings.lock,
.maxlen = sizeof(int),
.proc_handler = &cdrom_sysctl_handler,
},
{
- .ctl_name = DEV_CDROM_CHECK_MEDIA,
.procname = "check_media",
.data = &cdrom_sysctl_settings.check,
.maxlen = sizeof(int),
if (initialized == 1)
return;
- cdrom_sysctl_header = register_sysctl_table(cdrom_root_table, 0);
+ cdrom_sysctl_header = register_sysctl_table(cdrom_root_table);
/* set the defaults */
cdrom_sysctl_settings.autoclose = autoclose;