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Btrfs: sysfs: let default_attrs be separate from the kset 

As of now btrfs_attrs are provided using the default_attrs through
the kset. Separate them and create the default_attrs using the
sysfs_create_files instead. By doing this we will have the
flexibility that device discovery thread could create fsid
kobject.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
Anand Jain 2015-03-10 06:38:27 +08:00 committed by David Sterba
parent 720592157e
commit 0dd2906f72
1 changed files with 8 additions and 4 deletions
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12
fs/btrfs/sysfs.c
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@ -428,7 +428,7 @@ static ssize_t btrfs_clone_alignment_show(struct kobject *kobj,
BTRFS_ATTR(clone_alignment, btrfs_clone_alignment_show);
static struct attribute *btrfs_attrs[] = {
static const struct attribute *btrfs_attrs[] = {
BTRFS_ATTR_PTR(label),
BTRFS_ATTR_PTR(nodesize),
BTRFS_ATTR_PTR(sectorsize),
@ -447,7 +447,6 @@ static void btrfs_release_super_kobj(struct kobject *kobj)
static struct kobj_type btrfs_ktype = {
.sysfs_ops = &kobj_sysfs_ops,
.release = btrfs_release_super_kobj,
.default_attrs = btrfs_attrs,
};
static inline struct btrfs_fs_info *to_fs_info(struct kobject *kobj)
@ -531,6 +530,7 @@ void btrfs_sysfs_remove_one(struct btrfs_fs_info *fs_info)
}
addrm_unknown_feature_attrs(fs_info, false);
sysfs_remove_group(&fs_info->super_kobj, &btrfs_feature_attr_group);
sysfs_remove_files(&fs_info->super_kobj, btrfs_attrs);
btrfs_sysfs_remove_fsid(fs_info);
}
@ -720,13 +720,17 @@ int btrfs_sysfs_add_one(struct btrfs_fs_info *fs_info)
return error;
}
error = sysfs_create_group(&fs_info->super_kobj,
&btrfs_feature_attr_group);
error = sysfs_create_files(&fs_info->super_kobj, btrfs_attrs);
if (error) {
btrfs_sysfs_remove_fsid(fs_info);
return error;
}
error = sysfs_create_group(&fs_info->super_kobj,
&btrfs_feature_attr_group);
if (error)
goto failure;
error = addrm_unknown_feature_attrs(fs_info, true);
if (error)
goto failure;