diff options
Diffstat (limited to 'fs/sysfs/group.c')
| -rw-r--r-- | fs/sysfs/group.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c index 2df555c66d57..aec3d5c98c94 100644 --- a/fs/sysfs/group.c +++ b/fs/sysfs/group.c @@ -205,6 +205,48 @@ void sysfs_unmerge_group(struct kobject *kobj, } EXPORT_SYMBOL_GPL(sysfs_unmerge_group); +/** + * sysfs_add_link_to_group - add a symlink to an attribute group. + * @kobj: The kobject containing the group. + * @group_name: The name of the group. + * @target: The target kobject of the symlink to create. + * @link_name: The name of the symlink to create. + */ +int sysfs_add_link_to_group(struct kobject *kobj, const char *group_name, + struct kobject *target, const char *link_name) +{ + struct sysfs_dirent *dir_sd; + int error = 0; + + dir_sd = sysfs_get_dirent(kobj->sd, NULL, group_name); + if (!dir_sd) + return -ENOENT; + + error = sysfs_create_link_sd(dir_sd, target, link_name); + sysfs_put(dir_sd); + + return error; +} +EXPORT_SYMBOL_GPL(sysfs_add_link_to_group); + +/** + * sysfs_remove_link_from_group - remove a symlink from an attribute group. + * @kobj: The kobject containing the group. + * @group_name: The name of the group. + * @link_name: The name of the symlink to remove. + */ +void sysfs_remove_link_from_group(struct kobject *kobj, const char *group_name, + const char *link_name) +{ + struct sysfs_dirent *dir_sd; + + dir_sd = sysfs_get_dirent(kobj->sd, NULL, group_name); + if (dir_sd) { + sysfs_hash_and_remove(dir_sd, NULL, link_name); + sysfs_put(dir_sd); + } +} +EXPORT_SYMBOL_GPL(sysfs_remove_link_from_group); EXPORT_SYMBOL_GPL(sysfs_create_group); EXPORT_SYMBOL_GPL(sysfs_update_group); |