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authorChristoph Hellwig <hch@lst.de>2015-10-03 15:32:59 +0200
committerNicholas Bellinger <nab@linux-iscsi.org>2015-10-13 22:17:57 -0700
commit517982229f78b2aebf00a8a337e84e8eeea70b8e (patch)
tree6f5f093837a26d5b56874689234dc818951779ac /include/linux/configfs.h
parent45b997737a8025be2825e464e9e9dd5d07160dc3 (diff)
configfs: remove old API
Remove the old show_attribute and store_attribute methods and update the documentation. Also replace the two C samples with a single new one in the proper samples directory where people expect to find it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/linux/configfs.h')
-rw-r--r--include/linux/configfs.h82
1 files changed, 0 insertions, 82 deletions
diff --git a/include/linux/configfs.h b/include/linux/configfs.h
index 85e9956a86de..a8a335b7fce0 100644
--- a/include/linux/configfs.h
+++ b/include/linux/configfs.h
@@ -155,86 +155,6 @@ static struct configfs_attribute _pfx##attr_##_name = { \
}
/*
- * 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
@@ -250,8 +170,6 @@ static ssize_t _item##_attr_store(struct config_item *item, \
*/
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);
};