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authorKay Sievers <kay.sievers@vrfy.org>2009-04-30 15:23:42 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2009-06-15 21:30:25 -0700
commitb03f38b685e2e1db174fb8982930e789a516f414 (patch)
tree8ad84738e433409647a1450a991dba1ba90d7921 /block
parentf7a386c5b8ff34cd84ae922603d1c6f9d234edee (diff)
downloadlwn-b03f38b685e2e1db174fb8982930e789a516f414.tar.gz
lwn-b03f38b685e2e1db174fb8982930e789a516f414.zip
Driver Core: block: add nodename support for block drivers.
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 <kay.sievers@vrfy.org> Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'block')
-rw-r--r--block/genhd.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/block/genhd.c b/block/genhd.c
index fe7ccc0a618f..f4c64c2b303a 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -996,10 +996,20 @@ struct class block_class = {
.name = "block",
};
+static char *block_nodename(struct device *dev)
+{
+ struct gendisk *disk = dev_to_disk(dev);
+
+ if (disk->nodename)
+ return disk->nodename(disk);
+ return NULL;
+}
+
static struct device_type disk_type = {
.name = "disk",
.groups = disk_attr_groups,
.release = disk_release,
+ .nodename = block_nodename,
};
#ifdef CONFIG_PROC_FS