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authorKay Sievers <kay.sievers@suse.de>2006-06-15 09:31:56 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-06-21 15:40:49 -0400
commitb9d9c82b4d081feb464f62dfc786c8621d09ecd2 (patch)
tree511d15b4d7aaba80a2c0fe49622a3224ca386122 /fs/partitions/check.c
parent23681e479129854305da1da32f7f1eaf635ef22c (diff)
[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/check.c')
-rw-r--r--fs/partitions/check.c4
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)
329 p->ios[0] = p->ios[1] = 0; 329 p->ios[0] = p->ios[1] = 0;
330 p->sectors[0] = p->sectors[1] = 0; 330 p->sectors[0] = p->sectors[1] = 0;
331 devfs_remove("%s/part%d", disk->devfs_name, part); 331 devfs_remove("%s/part%d", disk->devfs_name, part);
332 sysfs_remove_link(&p->kobj, "subsystem");
332 if (p->holder_dir) 333 if (p->holder_dir)
333 kobject_unregister(p->holder_dir); 334 kobject_unregister(p->holder_dir);
334 kobject_uevent(&p->kobj, KOBJ_REMOVE); 335 kobject_uevent(&p->kobj, KOBJ_REMOVE);
@@ -363,6 +364,7 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len)
363 kobject_add(&p->kobj); 364 kobject_add(&p->kobj);
364 if (!disk->part_uevent_suppress) 365 if (!disk->part_uevent_suppress)
365 kobject_uevent(&p->kobj, KOBJ_ADD); 366 kobject_uevent(&p->kobj, KOBJ_ADD);
367 sysfs_create_link(&p->kobj, &block_subsys.kset.kobj, "subsystem");
366 partition_sysfs_add_subdir(p); 368 partition_sysfs_add_subdir(p);
367 disk->part[part-1] = p; 369 disk->part[part-1] = p;
368} 370}
@@ -398,6 +400,7 @@ static void disk_sysfs_symlinks(struct gendisk *disk)
398 kfree(disk_name); 400 kfree(disk_name);
399 } 401 }
400 } 402 }
403 sysfs_create_link(&disk->kobj, &block_subsys.kset.kobj, "subsystem");
401} 404}
402 405
403/* Not exported, helper to add_disk(). */ 406/* Not exported, helper to add_disk(). */
@@ -548,5 +551,6 @@ void del_gendisk(struct gendisk *disk)
548 put_device(disk->driverfs_dev); 551 put_device(disk->driverfs_dev);
549 disk->driverfs_dev = NULL; 552 disk->driverfs_dev = NULL;
550 } 553 }
554 sysfs_remove_link(&disk->kobj, "subsystem");
551 kobject_del(&disk->kobj); 555 kobject_del(&disk->kobj);
552} 556}