diff options
| author | Anand Jain <Anand.Jain@oracle.com> | 2014-06-03 11:36:01 +0800 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-06-28 13:48:43 -0700 |
| commit | 0d39376aa28eba6d63d0120ccc399735842abc8e (patch) | |
| tree | d588573634e0af59e6fc330d32ead6d53a18ac2c | |
| parent | 99994cde9c59c2b8bb67d46d531b26cc73e39747 (diff) | |
btrfs: dev add should add its sysfs entry
we would need the device links to be created,
when device is added.
Signed-off-by: Anand Jain <Anand.Jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
| -rw-r--r-- | fs/btrfs/sysfs.c | 12 | ||||
| -rw-r--r-- | fs/btrfs/sysfs.h | 2 | ||||
| -rw-r--r-- | fs/btrfs/volumes.c | 5 |
3 files changed, 16 insertions, 3 deletions
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 401677b1104..78699364f53 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -625,14 +625,17 @@ int btrfs_kobj_rm_device(struct btrfs_fs_info *fs_info, return 0; } -static int btrfs_kobj_add_device(struct btrfs_fs_info *fs_info) +int btrfs_kobj_add_device(struct btrfs_fs_info *fs_info, + struct btrfs_device *one_device) { int error = 0; struct btrfs_fs_devices *fs_devices = fs_info->fs_devices; struct btrfs_device *dev; - fs_info->device_dir_kobj = kobject_create_and_add("devices", + if (!fs_info->device_dir_kobj) + fs_info->device_dir_kobj = kobject_create_and_add("devices", &fs_info->super_kobj); + if (!fs_info->device_dir_kobj) return -ENOMEM; @@ -643,6 +646,9 @@ static int btrfs_kobj_add_device(struct btrfs_fs_info *fs_info) if (!dev->bdev) continue; + if (one_device && one_device != dev) + continue; + disk = dev->bdev->bd_part; disk_kobj = &part_to_dev(disk)->kobj; @@ -686,7 +692,7 @@ int btrfs_sysfs_add_one(struct btrfs_fs_info *fs_info) if (error) goto failure; - error = btrfs_kobj_add_device(fs_info); + error = btrfs_kobj_add_device(fs_info, NULL); if (error) goto failure; diff --git a/fs/btrfs/sysfs.h b/fs/btrfs/sysfs.h index 529554e5f9d..ac46df37504 100644 --- a/fs/btrfs/sysfs.h +++ b/fs/btrfs/sysfs.h @@ -66,6 +66,8 @@ char *btrfs_printable_features(enum btrfs_feature_set set, u64 flags); extern const char * const btrfs_feature_set_names[3]; extern struct kobj_type space_info_ktype; extern struct kobj_type btrfs_raid_ktype; +int btrfs_kobj_add_device(struct btrfs_fs_info *fs_info, + struct btrfs_device *one_device); int btrfs_kobj_rm_device(struct btrfs_fs_info *fs_info, struct btrfs_device *one_device); #endif /* _BTRFS_SYSFS_H_ */ diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index be2c8e285af..19b67e969b5 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2147,6 +2147,10 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) total_bytes = btrfs_super_num_devices(root->fs_info->super_copy); btrfs_set_super_num_devices(root->fs_info->super_copy, total_bytes + 1); + + /* add sysfs device entry */ + btrfs_kobj_add_device(root->fs_info, device); + mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); if (seeding_dev) { @@ -2209,6 +2213,7 @@ error_trans: unlock_chunks(root); btrfs_end_transaction(trans, root); rcu_string_free(device->name); + btrfs_kobj_rm_device(root->fs_info, device); kfree(device); error: blkdev_put(bdev, FMODE_EXCL); |