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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 21:40:49 +0200 |
| commit | b9d9c82b4d081feb464f62dfc786c8621d09ecd2 (patch) | |
| tree | 511d15b4d7aaba80a2c0fe49622a3224ca386122 /fs/partitions | |
| parent | [PATCH] Driver core: allow struct device to have a dev_t (diff) | |
| download | linux-b9d9c82b4d081feb464f62dfc786c8621d09ecd2.tar.xz linux-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 'fs/partitions')
| -rw-r--r-- | fs/partitions/check.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/partitions/check.c b/fs/partitions/check.c index 7ef1f094de91..8851b81e7c5a 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -329,6 +329,7 @@ void delete_partition(struct gendisk *disk, int part) p->ios[0] = p->ios[1] = 0; p->sectors[0] = p->sectors[1] = 0; devfs_remove("%s/part%d", disk->devfs_name, part); + sysfs_remove_link(&p->kobj, "subsystem"); if (p->holder_dir) kobject_unregister(p->holder_dir); kobject_uevent(&p->kobj, KOBJ_REMOVE); @@ -363,6 +364,7 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len) kobject_add(&p->kobj); if (!disk->part_uevent_suppress) kobject_uevent(&p->kobj, KOBJ_ADD); + sysfs_create_link(&p->kobj, &block_subsys.kset.kobj, "subsystem"); partition_sysfs_add_subdir(p); disk->part[part-1] = p; } @@ -398,6 +400,7 @@ static void disk_sysfs_symlinks(struct gendisk *disk) kfree(disk_name); } } + sysfs_create_link(&disk->kobj, &block_subsys.kset.kobj, "subsystem"); } /* Not exported, helper to add_disk(). */ @@ -548,5 +551,6 @@ void del_gendisk(struct gendisk *disk) put_device(disk->driverfs_dev); disk->driverfs_dev = NULL; } + sysfs_remove_link(&disk->kobj, "subsystem"); kobject_del(&disk->kobj); } |