diff options
| author | Kay Sievers <kay.sievers@vrfy.org> | 2007-05-21 22:08:01 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-01-24 20:40:36 -0800 |
| commit | edfaa7c36574f1bf09c65ad602412db9da5f96bf (patch) | |
| tree | d591b80ff9229e4845e41d68e2f4c5aadb017027 /drivers/base | |
| parent | 09f82ea92822a7bbb7e816508abbda47ed54a77f (diff) | |
Driver core: convert block from raw kobjects to core devices
This moves the block devices to /sys/class/block. It will create a
flat list of all block devices, with the disks and partitions in one
directory. For compatibility /sys/block is created and contains symlinks
to the disks.
/sys/class/block
|-- sda -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda
|-- sda1 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda1
|-- sda10 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda10
|-- sda5 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda5
|-- sda6 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda6
|-- sda7 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda7
|-- sda8 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda8
|-- sda9 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda9
`-- sr0 -> ../../devices/pci0000:00/0000:00:1f.2/host1/target1:0:0/1:0:0:0/block/sr0
/sys/block/
|-- sda -> ../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda
`-- sr0 -> ../devices/pci0000:00/0000:00:1f.2/host1/target1:0:0/1:0:0:0/block/sr0
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/class.c | 7 | ||||
| -rw-r--r-- | drivers/base/core.c | 20 |
2 files changed, 19 insertions, 8 deletions
diff --git a/drivers/base/class.c b/drivers/base/class.c index ba6745b0fd2f..624b3316e938 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -17,6 +17,7 @@ #include <linux/kdev_t.h> #include <linux/err.h> #include <linux/slab.h> +#include <linux/genhd.h> #include "base.h" #define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr) @@ -149,7 +150,13 @@ int class_register(struct class * cls) if (error) return error; +#ifdef CONFIG_SYSFS_DEPRECATED + /* let the block class directory show up in the root of sysfs */ + if (cls != &block_class) + cls->subsys.kobj.kset = class_kset; +#else cls->subsys.kobj.kset = class_kset; +#endif cls->subsys.kobj.ktype = &class_ktype; error = kset_register(&cls->subsys); diff --git a/drivers/base/core.c b/drivers/base/core.c index 13cae18936c5..06e8738ab263 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -671,14 +671,15 @@ static int device_add_class_symlinks(struct device *dev) #ifdef CONFIG_SYSFS_DEPRECATED /* stacked class devices need a symlink in the class directory */ - if (dev->kobj.parent != &dev->class->subsys.kobj) { + if (dev->kobj.parent != &dev->class->subsys.kobj && + dev->type != &part_type) { error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, dev->bus_id); if (error) goto out_subsys; } - if (dev->parent) { + if (dev->parent && dev->type != &part_type) { struct device *parent = dev->parent; char *class_name; @@ -707,10 +708,11 @@ static int device_add_class_symlinks(struct device *dev) return 0; out_device: - if (dev->parent) + if (dev->parent && dev->type != &part_type) sysfs_remove_link(&dev->kobj, "device"); out_busid: - if (dev->kobj.parent != &dev->class->subsys.kobj) + if (dev->kobj.parent != &dev->class->subsys.kobj && + dev->type != &part_type) sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); #else /* link in the class directory pointing to the device */ @@ -719,7 +721,7 @@ out_busid: if (error) goto out_subsys; - if (dev->parent) { + if (dev->parent && dev->type != &part_type) { error = sysfs_create_link(&dev->kobj, &dev->parent->kobj, "device"); if (error) @@ -743,7 +745,7 @@ static void device_remove_class_symlinks(struct device *dev) return; #ifdef CONFIG_SYSFS_DEPRECATED - if (dev->parent) { + if (dev->parent && dev->type != &part_type) { char *class_name; class_name = make_class_name(dev->class->name, &dev->kobj); @@ -754,10 +756,11 @@ static void device_remove_class_symlinks(struct device *dev) sysfs_remove_link(&dev->kobj, "device"); } - if (dev->kobj.parent != &dev->class->subsys.kobj) + if (dev->kobj.parent != &dev->class->subsys.kobj && + dev->type != &part_type) sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); #else - if (dev->parent) + if (dev->parent && dev->type != &part_type) sysfs_remove_link(&dev->kobj, "device"); sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); @@ -925,6 +928,7 @@ struct device * get_device(struct device * dev) */ void put_device(struct device * dev) { + /* might_sleep(); */ if (dev) kobject_put(&dev->kobj); } |