#include "ibm.h"
#include "ultrix.h"
#include "efi.h"
+#include "karma.h"
#ifdef CONFIG_BLK_DEV_MD
extern void md_autodetect_dev(dev_t dev);
#ifdef CONFIG_LDM_PARTITION
ldm_partition, /* this must come before msdos */
#endif
-#ifdef CONFIG_NEC98_PARTITION
- nec98_partition, /* must be come before `msdos_partition' */
-#endif
#ifdef CONFIG_MSDOS_PARTITION
msdos_partition,
#endif
#endif
#ifdef CONFIG_IBM_PARTITION
ibm_partition,
+#endif
+#ifdef CONFIG_KARMA_PARTITION
+ karma_partition,
#endif
NULL
};
struct part_attribute {
struct attribute attr;
ssize_t (*show)(struct hd_struct *,char *);
+ ssize_t (*store)(struct hd_struct *,const char *, size_t);
};
static ssize_t
struct part_attribute * part_attr = container_of(attr,struct part_attribute,attr);
ssize_t ret = 0;
if (part_attr->show)
- ret = part_attr->show(p,page);
+ ret = part_attr->show(p, page);
+ return ret;
+}
+static ssize_t
+part_attr_store(struct kobject * kobj, struct attribute * attr,
+ const char *page, size_t count)
+{
+ struct hd_struct * p = container_of(kobj,struct hd_struct,kobj);
+ struct part_attribute * part_attr = container_of(attr,struct part_attribute,attr);
+ ssize_t ret = 0;
+
+ if (part_attr->store)
+ ret = part_attr->store(p, page, count);
return ret;
}
static struct sysfs_ops part_sysfs_ops = {
.show = part_attr_show,
+ .store = part_attr_store,
};
+static ssize_t part_uevent_store(struct hd_struct * p,
+ const char *page, size_t count)
+{
+ kobject_uevent(&p->kobj, KOBJ_ADD);
+ return count;
+}
static ssize_t part_dev_read(struct hd_struct * p, char *page)
{
struct gendisk *disk = container_of(p->kobj.parent,struct gendisk,kobj);
static ssize_t part_stat_read(struct hd_struct * p, char *page)
{
return sprintf(page, "%8u %8llu %8u %8llu\n",
- p->reads, (unsigned long long)p->read_sectors,
- p->writes, (unsigned long long)p->write_sectors);
+ p->ios[0], (unsigned long long)p->sectors[0],
+ p->ios[1], (unsigned long long)p->sectors[1]);
}
+static struct part_attribute part_attr_uevent = {
+ .attr = {.name = "uevent", .mode = S_IWUSR },
+ .store = part_uevent_store
+};
static struct part_attribute part_attr_dev = {
.attr = {.name = "dev", .mode = S_IRUGO },
.show = part_dev_read
};
static struct attribute * default_attrs[] = {
+ &part_attr_uevent.attr,
&part_attr_dev.attr,
&part_attr_start.attr,
&part_attr_size.attr,
.sysfs_ops = &part_sysfs_ops,
};
+static inline void partition_sysfs_add_subdir(struct hd_struct *p)
+{
+ struct kobject *k;
+
+ k = kobject_get(&p->kobj);
+ p->holder_dir = kobject_add_dir(k, "holders");
+ kobject_put(k);
+}
+
+static inline void disk_sysfs_add_subdirs(struct gendisk *disk)
+{
+ struct kobject *k;
+
+ k = kobject_get(&disk->kobj);
+ disk->holder_dir = kobject_add_dir(k, "holders");
+ disk->slave_dir = kobject_add_dir(k, "slaves");
+ kobject_put(k);
+}
+
void delete_partition(struct gendisk *disk, int part)
{
struct hd_struct *p = disk->part[part-1];
disk->part[part-1] = NULL;
p->start_sect = 0;
p->nr_sects = 0;
- p->reads = p->writes = p->read_sectors = p->write_sectors = 0;
+ p->ios[0] = p->ios[1] = 0;
+ p->sectors[0] = p->sectors[1] = 0;
devfs_remove("%s/part%d", disk->devfs_name, part);
- kobject_unregister(&p->kobj);
+ if (p->holder_dir)
+ kobject_unregister(p->holder_dir);
+ kobject_uevent(&p->kobj, KOBJ_REMOVE);
+ kobject_del(&p->kobj);
+ kobject_put(&p->kobj);
}
void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len)
snprintf(p->kobj.name,KOBJ_NAME_LEN,"%s%d",disk->kobj.name,part);
p->kobj.parent = &disk->kobj;
p->kobj.ktype = &ktype_part;
- kobject_register(&p->kobj);
+ kobject_init(&p->kobj);
+ kobject_add(&p->kobj);
+ if (!disk->part_uevent_suppress)
+ kobject_uevent(&p->kobj, KOBJ_ADD);
+ partition_sysfs_add_subdir(p);
disk->part[part-1] = p;
}
+static char *make_block_name(struct gendisk *disk)
+{
+ char *name;
+ static char *block_str = "block:";
+ int size;
+ char *s;
+
+ size = strlen(block_str) + strlen(disk->disk_name) + 1;
+ name = kmalloc(size, GFP_KERNEL);
+ if (!name)
+ return NULL;
+ strcpy(name, block_str);
+ strcat(name, disk->disk_name);
+ /* ewww... some of these buggers have / in name... */
+ s = strchr(name, '/');
+ if (s)
+ *s = '!';
+ return name;
+}
+
static void disk_sysfs_symlinks(struct gendisk *disk)
{
struct device *target = get_device(disk->driverfs_dev);
if (target) {
+ char *disk_name = make_block_name(disk);
sysfs_create_link(&disk->kobj,&target->kobj,"device");
- sysfs_create_link(&target->kobj,&disk->kobj,"block");
+ if (disk_name) {
+ sysfs_create_link(&target->kobj,&disk->kobj,disk_name);
+ kfree(disk_name);
+ }
}
}
{
struct block_device *bdev;
char *s;
+ int i;
+ struct hd_struct *p;
int err;
strlcpy(disk->kobj.name,disk->disk_name,KOBJ_NAME_LEN);
if ((err = kobject_add(&disk->kobj)))
return;
disk_sysfs_symlinks(disk);
- kobject_hotplug(&disk->kobj, KOBJ_ADD);
+ disk_sysfs_add_subdirs(disk);
/* No minors to use for partitions */
if (disk->minors == 1) {
if (disk->devfs_name[0] != '\0')
devfs_add_disk(disk);
- return;
+ goto exit;
}
/* always add handle for the whole disk */
/* No such device (e.g., media were just removed) */
if (!get_capacity(disk))
- return;
+ goto exit;
bdev = bdget_disk(disk, 0);
if (!bdev)
- return;
+ goto exit;
+ /* scan partition table, but suppress uevents */
bdev->bd_invalidated = 1;
- if (blkdev_get(bdev, FMODE_READ, 0) < 0)
- return;
+ disk->part_uevent_suppress = 1;
+ err = blkdev_get(bdev, FMODE_READ, 0);
+ disk->part_uevent_suppress = 0;
+ if (err < 0)
+ goto exit;
blkdev_put(bdev);
+
+exit:
+ /* announce disk after possible partitions are already created */
+ kobject_uevent(&disk->kobj, KOBJ_ADD);
+
+ /* announce possible partitions */
+ for (i = 1; i < disk->minors; i++) {
+ p = disk->part[i-1];
+ if (!p || !p->nr_sects)
+ continue;
+ kobject_uevent(&p->kobj, KOBJ_ADD);
+ }
}
int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
disk->flags &= ~GENHD_FL_UP;
unlink_gendisk(disk);
disk_stat_set_all(disk, 0);
- disk->stamp = disk->stamp_idle = 0;
+ disk->stamp = 0;
devfs_remove_disk(disk);
+ kobject_uevent(&disk->kobj, KOBJ_REMOVE);
+ if (disk->holder_dir)
+ kobject_unregister(disk->holder_dir);
+ if (disk->slave_dir)
+ kobject_unregister(disk->slave_dir);
if (disk->driverfs_dev) {
+ char *disk_name = make_block_name(disk);
sysfs_remove_link(&disk->kobj, "device");
- sysfs_remove_link(&disk->driverfs_dev->kobj, "block");
+ if (disk_name) {
+ sysfs_remove_link(&disk->driverfs_dev->kobj, disk_name);
+ kfree(disk_name);
+ }
put_device(disk->driverfs_dev);
+ disk->driverfs_dev = NULL;
}
- kobject_hotplug(&disk->kobj, KOBJ_REMOVE);
kobject_del(&disk->kobj);
}
git://git.onelab.eu / linux-2.6.git / blobdiff