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-rw-r--r--fs/ecryptfs/main.c85
1 files changed, 18 insertions, 67 deletions
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index e5580bcb923..f9f32472c50 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -734,58 +734,14 @@ static int ecryptfs_init_kmem_caches(void)
return 0;
}
-struct ecryptfs_obj {
- char *name;
- struct list_head slot_list;
- struct kobject kobj;
-};
-
-struct ecryptfs_attribute {
- struct attribute attr;
- ssize_t(*show) (struct ecryptfs_obj *, char *);
- ssize_t(*store) (struct ecryptfs_obj *, const char *, size_t);
-};
-
-static ssize_t
-ecryptfs_attr_store(struct kobject *kobj,
- struct attribute *attr, const char *buf, size_t len)
-{
- struct ecryptfs_obj *obj = container_of(kobj, struct ecryptfs_obj,
- kobj);
- struct ecryptfs_attribute *attribute =
- container_of(attr, struct ecryptfs_attribute, attr);
-
- return (attribute->store ? attribute->store(obj, buf, len) : 0);
-}
-
-static ssize_t
-ecryptfs_attr_show(struct kobject *kobj, struct attribute *attr, char *buf)
-{
- struct ecryptfs_obj *obj = container_of(kobj, struct ecryptfs_obj,
- kobj);
- struct ecryptfs_attribute *attribute =
- container_of(attr, struct ecryptfs_attribute, attr);
-
- return (attribute->show ? attribute->show(obj, buf) : 0);
-}
-
-static struct sysfs_ops ecryptfs_sysfs_ops = {
- .show = ecryptfs_attr_show,
- .store = ecryptfs_attr_store
-};
+static decl_subsys(ecryptfs, NULL, NULL);
-static struct kobj_type ecryptfs_ktype = {
- .sysfs_ops = &ecryptfs_sysfs_ops
-};
-
-static decl_subsys(ecryptfs, &ecryptfs_ktype, NULL);
-
-static ssize_t version_show(struct ecryptfs_obj *obj, char *buff)
+static ssize_t version_show(struct kset *kset, char *buff)
{
return snprintf(buff, PAGE_SIZE, "%d\n", ECRYPTFS_VERSIONING_MASK);
}
-static struct ecryptfs_attribute sysfs_attr_version = __ATTR_RO(version);
+static struct subsys_attribute version_attr = __ATTR_RO(version);
static struct ecryptfs_version_str_map_elem {
u32 flag;
@@ -799,7 +755,7 @@ static struct ecryptfs_version_str_map_elem {
{ECRYPTFS_VERSIONING_MULTKEY, "multiple keys per file"}
};
-static ssize_t version_str_show(struct ecryptfs_obj *obj, char *buff)
+static ssize_t version_str_show(struct kset *kset, char *buff)
{
int i;
int remaining = PAGE_SIZE;
@@ -826,7 +782,17 @@ out:
return total_written;
}
-static struct ecryptfs_attribute sysfs_attr_version_str = __ATTR_RO(version_str);
+static struct subsys_attribute version_attr_str = __ATTR_RO(version_str);
+
+static struct attribute *attributes[] = {
+ &version_attr.attr,
+ &version_attr_str.attr,
+ NULL,
+};
+
+static struct attribute_group attr_group = {
+ .attrs = attributes,
+};
static int do_sysfs_registration(void)
{
@@ -838,23 +804,11 @@ static int do_sysfs_registration(void)
"Unable to register ecryptfs sysfs subsystem\n");
goto out;
}
- rc = sysfs_create_file(&ecryptfs_subsys.kobj,
- &sysfs_attr_version.attr);
+ rc = sysfs_create_group(&ecryptfs_subsys.kobj, &attr_group);
if (rc) {
printk(KERN_ERR
- "Unable to create ecryptfs version attribute\n");
+ "Unable to create ecryptfs version attributes\n");
subsystem_unregister(&ecryptfs_subsys);
- goto out;
- }
- rc = sysfs_create_file(&ecryptfs_subsys.kobj,
- &sysfs_attr_version_str.attr);
- if (rc) {
- printk(KERN_ERR
- "Unable to create ecryptfs version_str attribute\n");
- sysfs_remove_file(&ecryptfs_subsys.kobj,
- &sysfs_attr_version.attr);
- subsystem_unregister(&ecryptfs_subsys);
- goto out;
}
out:
return rc;
@@ -862,10 +816,7 @@ out:
static void do_sysfs_unregistration(void)
{
- sysfs_remove_file(&ecryptfs_subsys.kobj,
- &sysfs_attr_version.attr);
- sysfs_remove_file(&ecryptfs_subsys.kobj,
- &sysfs_attr_version_str.attr);
+ sysfs_remove_group(&ecryptfs_subsys.kobj, &attr_group);
subsystem_unregister(&ecryptfs_subsys);
}