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authorKay Sievers <kay.sievers@vrfy.org>2007-05-21 22:08:01 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2008-01-24 20:40:36 -0800
commitedfaa7c36574f1bf09c65ad602412db9da5f96bf (patch)
treed591b80ff9229e4845e41d68e2f4c5aadb017027 /drivers/block
parent09f82ea92822a7bbb7e816508abbda47ed54a77f (diff)
downloadop-kernel-dev-edfaa7c36574f1bf09c65ad602412db9da5f96bf.zip
op-kernel-dev-edfaa7c36574f1bf09c65ad602412db9da5f96bf.tar.gz
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/block')
-rw-r--r--drivers/block/aoe/aoeblk.c51
-rw-r--r--drivers/block/nbd.c15
2 files changed, 34 insertions, 32 deletions
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index ad00b3d..826d123 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -15,8 +15,10 @@
static struct kmem_cache *buf_pool_cache;
-static ssize_t aoedisk_show_state(struct gendisk * disk, char *page)
+static ssize_t aoedisk_show_state(struct device *dev,
+ struct device_attribute *attr, char *page)
{
+ struct gendisk *disk = dev_to_disk(dev);
struct aoedev *d = disk->private_data;
return snprintf(page, PAGE_SIZE,
@@ -26,50 +28,47 @@ static ssize_t aoedisk_show_state(struct gendisk * disk, char *page)
(d->nopen && !(d->flags & DEVFL_UP)) ? ",closewait" : "");
/* I'd rather see nopen exported so we can ditch closewait */
}
-static ssize_t aoedisk_show_mac(struct gendisk * disk, char *page)
+static ssize_t aoedisk_show_mac(struct device *dev,
+ struct device_attribute *attr, char *page)
{
+ struct gendisk *disk = dev_to_disk(dev);
struct aoedev *d = disk->private_data;
return snprintf(page, PAGE_SIZE, "%012llx\n",
(unsigned long long)mac_addr(d->addr));
}
-static ssize_t aoedisk_show_netif(struct gendisk * disk, char *page)
+static ssize_t aoedisk_show_netif(struct device *dev,
+ struct device_attribute *attr, char *page)
{
+ struct gendisk *disk = dev_to_disk(dev);
struct aoedev *d = disk->private_data;
return snprintf(page, PAGE_SIZE, "%s\n", d->ifp->name);
}
/* firmware version */
-static ssize_t aoedisk_show_fwver(struct gendisk * disk, char *page)
+static ssize_t aoedisk_show_fwver(struct device *dev,
+ struct device_attribute *attr, char *page)
{
+ struct gendisk *disk = dev_to_disk(dev);
struct aoedev *d = disk->private_data;
return snprintf(page, PAGE_SIZE, "0x%04x\n", (unsigned int) d->fw_ver);
}
-static struct disk_attribute disk_attr_state = {
- .attr = {.name = "state", .mode = S_IRUGO },
- .show = aoedisk_show_state
-};
-static struct disk_attribute disk_attr_mac = {
- .attr = {.name = "mac", .mode = S_IRUGO },
- .show = aoedisk_show_mac
-};
-static struct disk_attribute disk_attr_netif = {
- .attr = {.name = "netif", .mode = S_IRUGO },
- .show = aoedisk_show_netif
-};
-static struct disk_attribute disk_attr_fwver = {
- .attr = {.name = "firmware-version", .mode = S_IRUGO },
- .show = aoedisk_show_fwver
+static DEVICE_ATTR(state, S_IRUGO, aoedisk_show_state, NULL);
+static DEVICE_ATTR(mac, S_IRUGO, aoedisk_show_mac, NULL);
+static DEVICE_ATTR(netif, S_IRUGO, aoedisk_show_netif, NULL);
+static struct device_attribute dev_attr_firmware_version = {
+ .attr = { .name = "firmware-version", .mode = S_IRUGO, .owner = THIS_MODULE },
+ .show = aoedisk_show_fwver,
};
static struct attribute *aoe_attrs[] = {
- &disk_attr_state.attr,
- &disk_attr_mac.attr,
- &disk_attr_netif.attr,
- &disk_attr_fwver.attr,
- NULL
+ &dev_attr_state.attr,
+ &dev_attr_mac.attr,
+ &dev_attr_netif.attr,
+ &dev_attr_firmware_version.attr,
+ NULL,
};
static const struct attribute_group attr_group = {
@@ -79,12 +78,12 @@ static const struct attribute_group attr_group = {
static int
aoedisk_add_sysfs(struct aoedev *d)
{
- return sysfs_create_group(&d->gd->kobj, &attr_group);
+ return sysfs_create_group(&d->gd->dev.kobj, &attr_group);
}
void
aoedisk_rm_sysfs(struct aoedev *d)
{
- sysfs_remove_group(&d->gd->kobj, &attr_group);
+ sysfs_remove_group(&d->gd->dev.kobj, &attr_group);
}
static int
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index b4c0888..ba9b17e 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -375,14 +375,17 @@ harderror:
return NULL;
}
-static ssize_t pid_show(struct gendisk *disk, char *page)
+static ssize_t pid_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- return sprintf(page, "%ld\n",
+ struct gendisk *disk = dev_to_disk(dev);
+
+ return sprintf(buf, "%ld\n",
(long) ((struct nbd_device *)disk->private_data)->pid);
}
-static struct disk_attribute pid_attr = {
- .attr = { .name = "pid", .mode = S_IRUGO },
+static struct device_attribute pid_attr = {
+ .attr = { .name = "pid", .mode = S_IRUGO, .owner = THIS_MODULE },
.show = pid_show,
};
@@ -394,7 +397,7 @@ static int nbd_do_it(struct nbd_device *lo)
BUG_ON(lo->magic != LO_MAGIC);
lo->pid = current->pid;
- ret = sysfs_create_file(&lo->disk->kobj, &pid_attr.attr);
+ ret = sysfs_create_file(&lo->disk->dev.kobj, &pid_attr.attr);
if (ret) {
printk(KERN_ERR "nbd: sysfs_create_file failed!");
return ret;
@@ -403,7 +406,7 @@ static int nbd_do_it(struct nbd_device *lo)
while ((req = nbd_read_stat(lo)) != NULL)
nbd_end_request(req);
- sysfs_remove_file(&lo->disk->kobj, &pid_attr.attr);
+ sysfs_remove_file(&lo->disk->dev.kobj, &pid_attr.attr);
return 0;
}
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