struct mem_ctl_info *mem_ctl_info = to_mci(kobj);
struct mcidev_sysfs_attribute *mcidev_attr = to_mcidev_attr(attr);
+ debugf1("%s() mem_ctl_info %p\n", __func__, mem_ctl_info);
+
if (mcidev_attr->show)
return mcidev_attr->show(mem_ctl_info, buffer);
struct mem_ctl_info *mem_ctl_info = to_mci(kobj);
struct mcidev_sysfs_attribute *mcidev_attr = to_mcidev_attr(attr);
+ debugf1("%s() mem_ctl_info %p\n", __func__, mem_ctl_info);
+
if (mcidev_attr->store)
return mcidev_attr->store(mem_ctl_info, buffer, count);
#define EDAC_DEVICE_SYMLINK "device"
+#define grp_to_mci(k) (container_of(k, struct mcidev_sysfs_group_kobj, kobj)->mci)
+
+/* MCI show/store functions for top most object */
+static ssize_t inst_grp_show(struct kobject *kobj, struct attribute *attr,
+ char *buffer)
+{
+ struct mem_ctl_info *mem_ctl_info = grp_to_mci(kobj);
+ struct mcidev_sysfs_attribute *mcidev_attr = to_mcidev_attr(attr);
+
+ debugf1("%s() mem_ctl_info %p\n", __func__, mem_ctl_info);
+
+ if (mcidev_attr->show)
+ return mcidev_attr->show(mem_ctl_info, buffer);
+
+ return -EIO;
+}
+
+static ssize_t inst_grp_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
+{
+ struct mem_ctl_info *mem_ctl_info = grp_to_mci(kobj);
+ struct mcidev_sysfs_attribute *mcidev_attr = to_mcidev_attr(attr);
+
+ debugf1("%s() mem_ctl_info %p\n", __func__, mem_ctl_info);
+
+ if (mcidev_attr->store)
+ return mcidev_attr->store(mem_ctl_info, buffer, count);
+
+ return -EIO;
+}
+
+/* No memory to release for this kobj */
+static void edac_inst_grp_release(struct kobject *kobj)
+{
+ struct mcidev_sysfs_group_kobj *grp;
+ struct mem_ctl_info *mci;
+
+ debugf1("%s()\n", __func__);
+
+ grp = container_of(kobj, struct mcidev_sysfs_group_kobj, kobj);
+ mci = grp->mci;
+
+ kobject_put(&mci->edac_mci_kobj);
+}
+
+/* Intermediate show/store table */
+static struct sysfs_ops inst_grp_ops = {
+ .show = inst_grp_show,
+ .store = inst_grp_store
+};
+
+/* the kobj_type instance for a instance group */
+static struct kobj_type ktype_inst_grp = {
+ .release = edac_inst_grp_release,
+ .sysfs_ops = &inst_grp_ops,
+};
+
+
/*
* edac_create_mci_instance_attributes
- * create MC driver specific attributes at the topmost level
- * directory of this mci instance.
+ * create MC driver specific attributes bellow an specified kobj
+ * This routine calls itself recursively, in order to create an entire
+ * object tree.
*/
-static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci)
+static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
+ struct mcidev_sysfs_attribute *sysfs_attrib,
+ struct kobject *kobj)
{
int err;
- struct mcidev_sysfs_attribute *sysfs_attrib;
- /* point to the start of the array and iterate over it
- * adding each attribute listed to this mci instance's kobject
- */
- sysfs_attrib = mci->mc_driver_sysfs_attributes;
+ debugf1("%s()\n", __func__);
+
+ while (sysfs_attrib) {
+ if (sysfs_attrib->grp) {
+ struct mcidev_sysfs_group_kobj *grp_kobj;
+
+ grp_kobj = kzalloc(sizeof(*grp_kobj), GFP_KERNEL);
+ if (!grp_kobj)
+ return -ENOMEM;
+
+ list_add_tail(&grp_kobj->list, &mci->grp_kobj_list);
+
+ grp_kobj->grp = sysfs_attrib->grp;
+ grp_kobj->mci = mci;
+
+ debugf0("%s() grp %s, mci %p\n", __func__,
+ sysfs_attrib->grp->name, mci);
+
+ err = kobject_init_and_add(&grp_kobj->kobj,
+ &ktype_inst_grp,
+ &mci->edac_mci_kobj,
+ sysfs_attrib->grp->name);
+ if (err)
+ return err;
+
+ err = edac_create_mci_instance_attributes(mci,
+ grp_kobj->grp->mcidev_attr,
+ &grp_kobj->kobj);
+
+ if (err)
+ return err;
+ } else if (sysfs_attrib->attr.name) {
+ debugf0("%s() file %s\n", __func__,
+ sysfs_attrib->attr.name);
+
+ err = sysfs_create_file(kobj, &sysfs_attrib->attr);
+ } else
+ break;
- while (sysfs_attrib && sysfs_attrib->attr.name) {
- err = sysfs_create_file(&mci->edac_mci_kobj,
- (struct attribute*) sysfs_attrib);
if (err) {
return err;
}
-
sysfs_attrib++;
}
* remove MC driver specific attributes at the topmost level
* directory of this mci instance.
*/
-static void edac_remove_mci_instance_attributes(struct mem_ctl_info *mci)
+static void edac_remove_mci_instance_attributes(struct mem_ctl_info *mci,
+ struct mcidev_sysfs_attribute *sysfs_attrib,
+ struct kobject *kobj, int count)
{
- struct mcidev_sysfs_attribute *sysfs_attrib;
+ struct mcidev_sysfs_group_kobj *grp_kobj, *tmp;
- /* point to the start of the array and iterate over it
- * adding each attribute listed to this mci instance's kobject
- */
- sysfs_attrib = mci->mc_driver_sysfs_attributes;
+ debugf1("%s()\n", __func__);
- /* loop if there are attributes and until we hit a NULL entry */
- while (sysfs_attrib && sysfs_attrib->attr.name) {
- sysfs_remove_file(&mci->edac_mci_kobj,
- (struct attribute *) sysfs_attrib);
+ /*
+ * loop if there are attributes and until we hit a NULL entry
+ * Remove first all the atributes
+ */
+ while (sysfs_attrib) {
+ if (sysfs_attrib->grp) {
+ list_for_each_entry(grp_kobj, &mci->grp_kobj_list,
+ list)
+ if (grp_kobj->grp == sysfs_attrib->grp)
+ edac_remove_mci_instance_attributes(mci,
+ grp_kobj->grp->mcidev_attr,
+ &grp_kobj->kobj, count + 1);
+ } else if (sysfs_attrib->attr.name) {
+ debugf0("%s() file %s\n", __func__,
+ sysfs_attrib->attr.name);
+ sysfs_remove_file(kobj, &sysfs_attrib->attr);
+ } else
+ break;
sysfs_attrib++;
}
+
+ /*
+ * Now that all attributes got removed, it is save to remove all groups
+ */
+ if (!count)
+ list_for_each_entry_safe(grp_kobj, tmp, &mci->grp_kobj_list,
+ list) {
+ debugf0("%s() grp %s\n", __func__, grp_kobj->grp->name);
+ kobject_put(&grp_kobj->kobj);
+ }
}
debugf0("%s() idx=%d\n", __func__, mci->mc_idx);
+ INIT_LIST_HEAD(&mci->grp_kobj_list);
+
/* create a symlink for the device */
err = sysfs_create_link(kobj_mci, &mci->dev->kobj,
EDAC_DEVICE_SYMLINK);
* then create them now for the driver.
*/
if (mci->mc_driver_sysfs_attributes) {
- err = edac_create_mci_instance_attributes(mci);
+ err = edac_create_mci_instance_attributes(mci,
+ mci->mc_driver_sysfs_attributes,
+ &mci->edac_mci_kobj);
if (err) {
debugf1("%s() failure to create mci attributes\n",
__func__);
}
/* remove the mci instance's attributes, if any */
- edac_remove_mci_instance_attributes(mci);
+ edac_remove_mci_instance_attributes(mci,
+ mci->mc_driver_sysfs_attributes, &mci->edac_mci_kobj, 0);
/* remove the symlink */
sysfs_remove_link(kobj_mci, EDAC_DEVICE_SYMLINK);
debugf0("%s() remove_mci_instance\n", __func__);
/* remove this mci instance's attribtes */
- edac_remove_mci_instance_attributes(mci);
-
+ edac_remove_mci_instance_attributes(mci,
+ mci->mc_driver_sysfs_attributes,
+ &mci->edac_mci_kobj, 0);
debugf0("%s() unregister this mci kobj\n", __func__);
/* unregister this instance's kobject */
git://bbs.cooldavid.org / net-next-2.6.git / blobdiff