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| author | Kay Sievers <kay.sievers@suse.de> | 2006-06-15 15:31:56 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-06-21 12:40:49 -0700 |
| commit | b9d9c82b4d081feb464f62dfc786c8621d09ecd2 (patch) | |
| tree | 511d15b4d7aaba80a2c0fe49622a3224ca386122 /block/genhd.c | |
| parent | 23681e479129854305da1da32f7f1eaf635ef22c (diff) | |
| download | lwn-b9d9c82b4d081feb464f62dfc786c8621d09ecd2.tar.gz lwn-b9d9c82b4d081feb464f62dfc786c8621d09ecd2.zip | |
[PATCH] Driver core: add generic "subsystem" link to all devices
Like the SUBSYTEM= key we find in the environment of the uevent, this
creates a generic "subsystem" link in sysfs for every device. Userspace
usually doesn't care at all if its a "class" or a "bus" device. This
provides an unified way to determine the subsytem of a device, regardless
of the way the driver core has created it.
Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'block/genhd.c')
| -rw-r--r-- | block/genhd.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/block/genhd.c b/block/genhd.c index 5a8d3bf02f17..8d7339511e5e 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -17,8 +17,7 @@ #include <linux/buffer_head.h> #include <linux/mutex.h> -static struct subsystem block_subsys; - +struct subsystem block_subsys; static DEFINE_MUTEX(block_subsys_lock); /* @@ -511,9 +510,7 @@ static struct kset_uevent_ops block_uevent_ops = { .uevent = block_uevent, }; -/* declare block_subsys. */ -static decl_subsys(block, &ktype_block, &block_uevent_ops); - +decl_subsys(block, &ktype_block, &block_uevent_ops); /* * aggregate disk stat collector. Uses the same stats that the sysfs |