08/12 - user_interface_attr_support
Adds the basic attribute store and show functions.
--
Signed-Off-By: Chandra Seetharaman <[EMAIL PROTECTED]>
Signed-Off-By: Shailabh Nagar <[EMAIL PROTECTED]>
Signed-Off-By: Matt Helsley <[EMAIL PROTECTED]>
rgcs.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 52 insertions(+), 1 deletion(-)
Index: linux-2617-rc3/kernel/res_group/rgcs.c
===================================================================
--- linux-2617-rc3.orig/kernel/res_group/rgcs.c 2006-04-27 10:18:39.000000000
-0700
+++ linux-2617-rc3/kernel/res_group/rgcs.c 2006-04-27 10:18:44.000000000
-0700
@@ -14,13 +14,21 @@
* as published by the Free Software Foundation.
*
*/
+#include <linux/ctype.h>
#include <linux/module.h>
#include <linux/configfs.h>
+#include <linux/parser.h>
#include "local.h"
static struct configfs_subsystem rgcs_subsys;
static struct config_item_type rgcs_item_type;
+struct rgroup_attribute {
+ struct configfs_attribute configfs_attr;
+ ssize_t (*show)(struct resource_group *, char *);
+ int (*store)(struct resource_group *, const char *);
+};
+
struct rgcs_rgroup {
char *name;
struct resource_group *core;
@@ -58,6 +66,42 @@ static inline struct resource_group *ite
return group_to_res_group(to_config_group(item));
}
+static ssize_t rgcs_attr_show(struct config_item *item,
+ struct configfs_attribute *attr, char *buf)
+{
+ struct rgroup_attribute *rgroup_attr;
+ struct resource_group *rgroup = item_to_res_group(item);
+
+ rgroup_attr = container_of(attr, struct rgroup_attribute,
+ configfs_attr);
+ return rgroup_attr->show(rgroup, buf);
+}
+
+static ssize_t rgcs_attr_store(struct config_item *item,
+ struct configfs_attribute *attr, const char *buf,
+ size_t count)
+{
+ char *filtered_buf, *p;
+ ssize_t rc;
+ struct rgroup_attribute *rgroup_attr;
+ struct resource_group *rgroup = item_to_res_group(item);
+
+ rgroup_attr = container_of(attr, struct rgroup_attribute,
+ configfs_attr);
+ filtered_buf = kzalloc(count + 1, GFP_KERNEL);
+ if (!filtered_buf)
+ return -ENOMEM;
+ strncpy(filtered_buf, buf, count);
+ for (p = filtered_buf; isprint(*p); ++p)
+ ;
+ *p = '\0';
+ rc = rgroup_attr->store(rgroup, filtered_buf);
+ kfree(filtered_buf);
+ if (rc)
+ return rc;
+ return count;
+}
+
/*
* This is the function that is called when a 'mkdir' command
* is issued under our filesystem
@@ -119,17 +163,24 @@ static void rgcs_rgroup_release_item(str
}
static struct configfs_item_operations rgcs_rgroup_item_ops = {
- .release = rgcs_rgroup_release_item,
+ .release = rgcs_rgroup_release_item,
+ .show_attribute = rgcs_attr_show,
+ .store_attribute = rgcs_attr_store,
};
static struct configfs_group_operations rgcs_rgroup_group_ops = {
.make_group = make_rgcs_rgroup,
};
+static struct configfs_attribute *rgroup_attrs[] = {
+ NULL
+};
+
static struct config_item_type rgcs_item_type = {
.ct_owner = THIS_MODULE,
.ct_item_ops = &rgcs_rgroup_item_ops,
.ct_group_ops = &rgcs_rgroup_group_ops,
+ .ct_attrs = rgroup_attrs
};
static struct configfs_subsystem rgcs_subsys = {
--
----------------------------------------------------------------------
Chandra Seetharaman | Be careful what you choose....
- [EMAIL PROTECTED] | .......you may get it.
----------------------------------------------------------------------
-------------------------------------------------------
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