2 * fs/sysfs/group.c - Operations for adding/removing multiple files at once.
4 * Copyright (c) 2003 Patrick Mochel
5 * Copyright (c) 2003 Open Source Development Lab
7 * This file is released undert the GPL v2.
11 #include <linux/kobject.h>
12 #include <linux/module.h>
13 #include <linux/dcache.h>
14 #include <linux/namei.h>
15 #include <linux/err.h>
20 static void remove_files(struct sysfs_dirent *dir_sd,
21 const struct attribute_group *grp)
23 struct attribute *const* attr;
25 for (attr = grp->attrs; *attr; attr++)
26 sysfs_hash_and_remove(dir_sd, (*attr)->name);
29 static int create_files(struct sysfs_dirent *dir_sd,
30 const struct attribute_group *grp)
32 struct attribute *const* attr;
35 for (attr = grp->attrs; *attr && !error; attr++)
36 error = sysfs_add_file(dir_sd, *attr, SYSFS_KOBJ_ATTR);
38 remove_files(dir_sd, grp);
43 int sysfs_create_group(struct kobject * kobj,
44 const struct attribute_group * grp)
46 struct sysfs_dirent *sd;
49 BUG_ON(!kobj || !kobj->sd);
52 error = sysfs_create_subdir(kobj, grp->name, &sd);
58 error = create_files(sd, grp);
61 sysfs_remove_subdir(sd);
67 void sysfs_remove_group(struct kobject * kobj,
68 const struct attribute_group * grp)
70 struct sysfs_dirent *dir_sd = kobj->sd;
71 struct sysfs_dirent *sd;
74 sd = sysfs_get_dirent(dir_sd, grp->name);
77 sd = sysfs_get(dir_sd);
79 remove_files(sd, grp);
81 sysfs_remove_subdir(sd);
87 EXPORT_SYMBOL_GPL(sysfs_create_group);
88 EXPORT_SYMBOL_GPL(sysfs_remove_group);