diff options
Diffstat (limited to 'fs/sysfs/group.c')
| -rw-r--r-- | fs/sysfs/group.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c index 5afe0e7ff7cd..fbb117757c52 100644 --- a/fs/sysfs/group.c +++ b/fs/sysfs/group.c @@ -426,6 +426,25 @@ int __compat_only_sysfs_link_entry_to_kobj(struct kobject *kobj, struct kobject *target_kobj, const char *target_name) { + return compat_only_sysfs_link_entry_to_kobj(kobj, target_kobj, + target_name, NULL); +} +EXPORT_SYMBOL_GPL(__compat_only_sysfs_link_entry_to_kobj); + +/** + * compat_only_sysfs_link_entry_to_kobj - add a symlink to a kobject pointing + * to a group or an attribute + * @kobj: The kobject containing the group. + * @target_kobj: The target kobject. + * @target_name: The name of the target group or attribute. + * @symlink_name: The name of the symlink file (target_name will be + * considered if symlink_name is NULL). + */ +int compat_only_sysfs_link_entry_to_kobj(struct kobject *kobj, + struct kobject *target_kobj, + const char *target_name, + const char *symlink_name) +{ struct kernfs_node *target; struct kernfs_node *entry; struct kernfs_node *link; @@ -449,15 +468,18 @@ int __compat_only_sysfs_link_entry_to_kobj(struct kobject *kobj, return -ENOENT; } - link = kernfs_create_link(kobj->sd, target_name, entry); + if (!symlink_name) + symlink_name = target_name; + + link = kernfs_create_link(kobj->sd, symlink_name, entry); if (PTR_ERR(link) == -EEXIST) - sysfs_warn_dup(kobj->sd, target_name); + sysfs_warn_dup(kobj->sd, symlink_name); kernfs_put(entry); kernfs_put(target); return PTR_ERR_OR_ZERO(link); } -EXPORT_SYMBOL_GPL(__compat_only_sysfs_link_entry_to_kobj); +EXPORT_SYMBOL_GPL(compat_only_sysfs_link_entry_to_kobj); static int sysfs_group_attrs_change_owner(struct kernfs_node *grp_kn, const struct attribute_group *grp, |