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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/include/linux/configfs.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/include/linux/configfs.h')
-rw-r--r-- | ANDROID_3.4.5/include/linux/configfs.h | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/ANDROID_3.4.5/include/linux/configfs.h b/ANDROID_3.4.5/include/linux/configfs.h deleted file mode 100644 index 34025df6..00000000 --- a/ANDROID_3.4.5/include/linux/configfs.h +++ /dev/null @@ -1,260 +0,0 @@ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * - * configfs.h - definitions for the device driver filesystem - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. - * - * Based on sysfs: - * sysfs is Copyright (C) 2001, 2002, 2003 Patrick Mochel - * - * Based on kobject.h: - * Copyright (c) 2002-2003 Patrick Mochel - * Copyright (c) 2002-2003 Open Source Development Labs - * - * configfs Copyright (C) 2005 Oracle. All rights reserved. - * - * Please read Documentation/filesystems/configfs/configfs.txt before using - * the configfs interface, ESPECIALLY the parts about reference counts and - * item destructors. - */ - -#ifndef _CONFIGFS_H_ -#define _CONFIGFS_H_ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/list.h> -#include <linux/kref.h> -#include <linux/mutex.h> -#include <linux/err.h> - -#include <linux/atomic.h> - -#define CONFIGFS_ITEM_NAME_LEN 20 - -struct module; - -struct configfs_item_operations; -struct configfs_group_operations; -struct configfs_attribute; -struct configfs_subsystem; - -struct config_item { - char *ci_name; - char ci_namebuf[CONFIGFS_ITEM_NAME_LEN]; - struct kref ci_kref; - struct list_head ci_entry; - struct config_item *ci_parent; - struct config_group *ci_group; - struct config_item_type *ci_type; - struct dentry *ci_dentry; -}; - -extern int config_item_set_name(struct config_item *, const char *, ...); - -static inline char *config_item_name(struct config_item * item) -{ - return item->ci_name; -} - -extern void config_item_init(struct config_item *); -extern void config_item_init_type_name(struct config_item *item, - const char *name, - struct config_item_type *type); - -extern struct config_item * config_item_get(struct config_item *); -extern void config_item_put(struct config_item *); - -struct config_item_type { - struct module *ct_owner; - struct configfs_item_operations *ct_item_ops; - struct configfs_group_operations *ct_group_ops; - struct configfs_attribute **ct_attrs; -}; - -/** - * group - a group of config_items of a specific type, belonging - * to a specific subsystem. - */ -struct config_group { - struct config_item cg_item; - struct list_head cg_children; - struct configfs_subsystem *cg_subsys; - struct config_group **default_groups; -}; - -extern void config_group_init(struct config_group *group); -extern void config_group_init_type_name(struct config_group *group, - const char *name, - struct config_item_type *type); - -static inline struct config_group *to_config_group(struct config_item *item) -{ - return item ? container_of(item,struct config_group,cg_item) : NULL; -} - -static inline struct config_group *config_group_get(struct config_group *group) -{ - return group ? to_config_group(config_item_get(&group->cg_item)) : NULL; -} - -static inline void config_group_put(struct config_group *group) -{ - config_item_put(&group->cg_item); -} - -extern struct config_item *config_group_find_item(struct config_group *, - const char *); - - -struct configfs_attribute { - const char *ca_name; - struct module *ca_owner; - umode_t ca_mode; -}; - -/* - * Users often need to create attribute structures for their configurable - * attributes, containing a configfs_attribute member and function pointers - * for the show() and store() operations on that attribute. If they don't - * need anything else on the extended attribute structure, they can use - * this macro to define it The argument _item is the name of the - * config_item structure. - */ -#define CONFIGFS_ATTR_STRUCT(_item) \ -struct _item##_attribute { \ - struct configfs_attribute attr; \ - ssize_t (*show)(struct _item *, char *); \ - ssize_t (*store)(struct _item *, const char *, size_t); \ -} - -/* - * With the extended attribute structure, users can use this macro - * (similar to sysfs' __ATTR) to make defining attributes easier. - * An example: - * #define MYITEM_ATTR(_name, _mode, _show, _store) \ - * struct myitem_attribute childless_attr_##_name = \ - * __CONFIGFS_ATTR(_name, _mode, _show, _store) - */ -#define __CONFIGFS_ATTR(_name, _mode, _show, _store) \ -{ \ - .attr = { \ - .ca_name = __stringify(_name), \ - .ca_mode = _mode, \ - .ca_owner = THIS_MODULE, \ - }, \ - .show = _show, \ - .store = _store, \ -} -/* Here is a readonly version, only requiring a show() operation */ -#define __CONFIGFS_ATTR_RO(_name, _show) \ -{ \ - .attr = { \ - .ca_name = __stringify(_name), \ - .ca_mode = 0444, \ - .ca_owner = THIS_MODULE, \ - }, \ - .show = _show, \ -} - -/* - * With these extended attributes, the simple show_attribute() and - * store_attribute() operations need to call the show() and store() of the - * attributes. This is a common pattern, so we provide a macro to define - * them. The argument _item is the name of the config_item structure. - * This macro expects the attributes to be named "struct <name>_attribute" - * and the function to_<name>() to exist; - */ -#define CONFIGFS_ATTR_OPS(_item) \ -static ssize_t _item##_attr_show(struct config_item *item, \ - struct configfs_attribute *attr, \ - char *page) \ -{ \ - struct _item *_item = to_##_item(item); \ - struct _item##_attribute *_item##_attr = \ - container_of(attr, struct _item##_attribute, attr); \ - ssize_t ret = 0; \ - \ - if (_item##_attr->show) \ - ret = _item##_attr->show(_item, page); \ - return ret; \ -} \ -static ssize_t _item##_attr_store(struct config_item *item, \ - struct configfs_attribute *attr, \ - const char *page, size_t count) \ -{ \ - struct _item *_item = to_##_item(item); \ - struct _item##_attribute *_item##_attr = \ - container_of(attr, struct _item##_attribute, attr); \ - ssize_t ret = -EINVAL; \ - \ - if (_item##_attr->store) \ - ret = _item##_attr->store(_item, page, count); \ - return ret; \ -} - -/* - * If allow_link() exists, the item can symlink(2) out to other - * items. If the item is a group, it may support mkdir(2). - * Groups supply one of make_group() and make_item(). If the - * group supports make_group(), one can create group children. If it - * supports make_item(), one can create config_item children. make_group() - * and make_item() return ERR_PTR() on errors. If it has - * default_groups on group->default_groups, it has automatically created - * group children. default_groups may coexist alongsize make_group() or - * make_item(), but if the group wishes to have only default_groups - * children (disallowing mkdir(2)), it need not provide either function. - * If the group has commit(), it supports pending and committed (active) - * items. - */ -struct configfs_item_operations { - void (*release)(struct config_item *); - ssize_t (*show_attribute)(struct config_item *, struct configfs_attribute *,char *); - ssize_t (*store_attribute)(struct config_item *,struct configfs_attribute *,const char *, size_t); - int (*allow_link)(struct config_item *src, struct config_item *target); - int (*drop_link)(struct config_item *src, struct config_item *target); -}; - -struct configfs_group_operations { - struct config_item *(*make_item)(struct config_group *group, const char *name); - struct config_group *(*make_group)(struct config_group *group, const char *name); - int (*commit_item)(struct config_item *item); - void (*disconnect_notify)(struct config_group *group, struct config_item *item); - void (*drop_item)(struct config_group *group, struct config_item *item); -}; - -struct configfs_subsystem { - struct config_group su_group; - struct mutex su_mutex; -}; - -static inline struct configfs_subsystem *to_configfs_subsystem(struct config_group *group) -{ - return group ? - container_of(group, struct configfs_subsystem, su_group) : - NULL; -} - -int configfs_register_subsystem(struct configfs_subsystem *subsys); -void configfs_unregister_subsystem(struct configfs_subsystem *subsys); - -/* These functions can sleep and can alloc with GFP_KERNEL */ -/* WARNING: These cannot be called underneath configfs callbacks!! */ -int configfs_depend_item(struct configfs_subsystem *subsys, struct config_item *target); -void configfs_undepend_item(struct configfs_subsystem *subsys, struct config_item *target); - -#endif /* _CONFIGFS_H_ */ |