diff options
Diffstat (limited to 'drivers/scsi/sd.c')
-rw-r--r-- | drivers/scsi/sd.c | 109 |
1 files changed, 67 insertions, 42 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 62b28d58e65..d57566b8be0 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -48,6 +48,7 @@ #include <linux/delay.h> #include <linux/mutex.h> #include <linux/string_helpers.h> +#include <linux/async.h> #include <asm/uaccess.h> #include <scsi/scsi.h> @@ -1802,6 +1803,71 @@ static int sd_format_disk_name(char *prefix, int index, char *buf, int buflen) return 0; } +/* + * The asynchronous part of sd_probe + */ +static void sd_probe_async(void *data, async_cookie_t cookie) +{ + struct scsi_disk *sdkp = data; + struct scsi_device *sdp; + struct gendisk *gd; + u32 index; + struct device *dev; + + sdp = sdkp->device; + gd = sdkp->disk; + index = sdkp->index; + dev = &sdp->sdev_gendev; + + if (!sdp->request_queue->rq_timeout) { + if (sdp->type != TYPE_MOD) + blk_queue_rq_timeout(sdp->request_queue, SD_TIMEOUT); + else + blk_queue_rq_timeout(sdp->request_queue, + SD_MOD_TIMEOUT); + } + + device_initialize(&sdkp->dev); + sdkp->dev.parent = &sdp->sdev_gendev; + sdkp->dev.class = &sd_disk_class; + dev_set_name(&sdkp->dev, dev_name(&sdp->sdev_gendev)); + + if (device_add(&sdkp->dev)) + goto out_free_index; + + get_device(&sdp->sdev_gendev); + + if (index < SD_MAX_DISKS) { + gd->major = sd_major((index & 0xf0) >> 4); + gd->first_minor = ((index & 0xf) << 4) | (index & 0xfff00); + gd->minors = SD_MINORS; + } + gd->fops = &sd_fops; + gd->private_data = &sdkp->driver; + gd->queue = sdkp->device->request_queue; + + sd_revalidate_disk(gd); + + blk_queue_prep_rq(sdp->request_queue, sd_prep_fn); + + gd->driverfs_dev = &sdp->sdev_gendev; + gd->flags = GENHD_FL_EXT_DEVT | GENHD_FL_DRIVERFS; + if (sdp->removable) + gd->flags |= GENHD_FL_REMOVABLE; + + dev_set_drvdata(dev, sdkp); + add_disk(gd); + sd_dif_config_host(sdkp); + + sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n", + sdp->removable ? "removable " : ""); + + return; + + out_free_index: + ida_remove(&sd_index_ida, index); +} + /** * sd_probe - called during driver initialization and whenever a * new scsi device is attached to the system. It is called once @@ -1865,48 +1931,7 @@ static int sd_probe(struct device *dev) sdkp->openers = 0; sdkp->previous_state = 1; - if (!sdp->request_queue->rq_timeout) { - if (sdp->type != TYPE_MOD) - blk_queue_rq_timeout(sdp->request_queue, SD_TIMEOUT); - else - blk_queue_rq_timeout(sdp->request_queue, - SD_MOD_TIMEOUT); - } - - device_initialize(&sdkp->dev); - sdkp->dev.parent = &sdp->sdev_gendev; - sdkp->dev.class = &sd_disk_class; - strncpy(sdkp->dev.bus_id, sdp->sdev_gendev.bus_id, BUS_ID_SIZE); - - if (device_add(&sdkp->dev)) - goto out_free_index; - - get_device(&sdp->sdev_gendev); - - if (index < SD_MAX_DISKS) { - gd->major = sd_major((index & 0xf0) >> 4); - gd->first_minor = ((index & 0xf) << 4) | (index & 0xfff00); - gd->minors = SD_MINORS; - } - gd->fops = &sd_fops; - gd->private_data = &sdkp->driver; - gd->queue = sdkp->device->request_queue; - - sd_revalidate_disk(gd); - - blk_queue_prep_rq(sdp->request_queue, sd_prep_fn); - - gd->driverfs_dev = &sdp->sdev_gendev; - gd->flags = GENHD_FL_EXT_DEVT | GENHD_FL_DRIVERFS; - if (sdp->removable) - gd->flags |= GENHD_FL_REMOVABLE; - - dev_set_drvdata(dev, sdkp); - add_disk(gd); - sd_dif_config_host(sdkp); - - sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n", - sdp->removable ? "removable " : ""); + async_schedule(sd_probe_async, sdkp); return 0; |