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Driver Core: block: add nodename support for block drivers.

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This adds support for block drivers to report their requested nodename
to userspace.  It also updates a number of block drivers to provide the
needed subdirectory and device name to be used for them.

Signed-off-by: Kay Sievers <[email protected]>
Signed-off-by: Jan Blunck <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Kay Sievers 2009-04-30 15:23:42 +02:00 • committed by Greg Kroah-Hartman
commit b03f38b685
3 changed files with 18 additions and 1 deletions
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7
drivers/block/pktcdvd.c
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@ -2855,6 +2855,11 @@ static struct block_device_operations pktcdvd_ops = {
.media_changed = pkt_media_changed,
};
static char *pktcdvd_nodename(struct gendisk *gd)
{
return kasprintf(GFP_KERNEL, "pktcdvd/%s", gd->disk_name);
}
/*
* Set up mapping from pktcdvd device to CD-ROM device.
*/
@ -2907,6 +2912,7 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
disk->fops = &pktcdvd_ops;
disk->flags = GENHD_FL_REMOVABLE;
strcpy(disk->disk_name, pd->name);
disk->nodename = pktcdvd_nodename;
disk->private_data = pd;
disk->queue = blk_alloc_queue(GFP_KERNEL);
if (!disk->queue)
@ -3062,6 +3068,7 @@ static const struct file_operations pkt_ctl_fops = {
static struct miscdevice pkt_misc = {
.minor = MISC_DYNAMIC_MINOR,
.name = DRIVER_NAME,
.name = "pktcdvd/control",
.fops = &pkt_ctl_fops
};