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edac_core: Do a better job with node removal
Make sure we remove groups at the right order Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
parent
39300e7143
commit
6fe1108f14
2 changed files with 43 additions and 29 deletions
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@ -207,6 +207,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt, unsigned nr_csrows,
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}
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mci->op_state = OP_ALLOC;
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INIT_LIST_HEAD(&mci->grp_kobj_list);
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/*
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* Initialize the 'root' kobj for the edac_mc controller
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@ -791,6 +791,7 @@ static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
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debugf1("%s()\n", __func__);
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while (sysfs_attrib) {
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debugf1("%s() sysfs_attrib = %p\n",__func__, sysfs_attrib);
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if (sysfs_attrib->grp) {
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struct mcidev_sysfs_group_kobj *grp_kobj;
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@ -798,10 +799,9 @@ static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
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if (!grp_kobj)
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return -ENOMEM;
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list_add_tail(&grp_kobj->list, &mci->grp_kobj_list);
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grp_kobj->grp = sysfs_attrib->grp;
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grp_kobj->mci = mci;
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list_add_tail(&grp_kobj->list, &mci->grp_kobj_list);
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debugf0("%s() grp %s, mci %p\n", __func__,
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sysfs_attrib->grp->name, mci);
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@ -810,26 +810,28 @@ static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
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&ktype_inst_grp,
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&mci->edac_mci_kobj,
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sysfs_attrib->grp->name);
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if (err)
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if (err < 0) {
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printk(KERN_ERR "kobject_init_and_add failed: %d\n", err);
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return err;
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}
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err = edac_create_mci_instance_attributes(mci,
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grp_kobj->grp->mcidev_attr,
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&grp_kobj->kobj);
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if (err)
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if (err < 0)
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return err;
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} else if (sysfs_attrib->attr.name) {
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debugf0("%s() file %s\n", __func__,
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sysfs_attrib->attr.name);
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err = sysfs_create_file(kobj, &sysfs_attrib->attr);
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if (err < 0) {
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printk(KERN_ERR "sysfs_create_file failed: %d\n", err);
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return err;
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}
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} else
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break;
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if (err) {
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return err;
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}
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sysfs_attrib++;
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}
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@ -854,13 +856,24 @@ static void edac_remove_mci_instance_attributes(struct mem_ctl_info *mci,
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* Remove first all the atributes
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*/
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while (sysfs_attrib) {
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debugf1("%s() sysfs_attrib = %p\n",__func__, sysfs_attrib);
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if (sysfs_attrib->grp) {
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list_for_each_entry(grp_kobj, &mci->grp_kobj_list,
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list)
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if (grp_kobj->grp == sysfs_attrib->grp)
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debugf1("%s() seeking for group %s\n",
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__func__, sysfs_attrib->grp->name);
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list_for_each_entry(grp_kobj,
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&mci->grp_kobj_list, list) {
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debugf1("%s() grp_kobj->grp = %p\n",__func__, grp_kobj->grp);
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if (grp_kobj->grp == sysfs_attrib->grp) {
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edac_remove_mci_instance_attributes(mci,
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grp_kobj->grp->mcidev_attr,
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&grp_kobj->kobj, count + 1);
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debugf0("%s() group %s\n", __func__,
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sysfs_attrib->grp->name);
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kobject_put(&grp_kobj->kobj);
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}
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}
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debugf1("%s() end of seeking for group %s\n",
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__func__, sysfs_attrib->grp->name);
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} else if (sysfs_attrib->attr.name) {
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debugf0("%s() file %s\n", __func__,
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sysfs_attrib->attr.name);
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@ -870,15 +883,14 @@ static void edac_remove_mci_instance_attributes(struct mem_ctl_info *mci,
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sysfs_attrib++;
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}
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/*
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* Now that all attributes got removed, it is save to remove all groups
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*/
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if (!count)
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list_for_each_entry_safe(grp_kobj, tmp, &mci->grp_kobj_list,
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list) {
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debugf0("%s() grp %s\n", __func__, grp_kobj->grp->name);
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kobject_put(&grp_kobj->kobj);
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}
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/* Remove the group objects */
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if (count)
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return;
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list_for_each_entry_safe(grp_kobj, tmp,
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&mci->grp_kobj_list, list) {
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list_del(&grp_kobj->list);
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kfree(grp_kobj);
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}
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}
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@ -970,6 +982,7 @@ void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
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debugf0("%s()\n", __func__);
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/* remove all csrow kobjects */
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debugf0("%s() unregister this mci kobj\n", __func__);
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for (i = 0; i < mci->nr_csrows; i++) {
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if (mci->csrows[i].nr_pages > 0) {
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debugf0("%s() unreg csrow-%d\n", __func__, i);
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@ -977,20 +990,20 @@ void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
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}
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}
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debugf0("%s() remove_link\n", __func__);
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/* remove this mci instance's attribtes */
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if (mci->mc_driver_sysfs_attributes) {
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debugf0("%s() unregister mci private attributes\n", __func__);
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edac_remove_mci_instance_attributes(mci,
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mci->mc_driver_sysfs_attributes,
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&mci->edac_mci_kobj, 0);
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}
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/* remove the symlink */
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debugf0("%s() remove_link\n", __func__);
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sysfs_remove_link(&mci->edac_mci_kobj, EDAC_DEVICE_SYMLINK);
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debugf0("%s() remove_mci_instance\n", __func__);
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/* remove this mci instance's attribtes */
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edac_remove_mci_instance_attributes(mci,
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mci->mc_driver_sysfs_attributes,
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&mci->edac_mci_kobj, 0);
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debugf0("%s() unregister this mci kobj\n", __func__);
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/* unregister this instance's kobject */
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debugf0("%s() remove_mci_instance\n", __func__);
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kobject_put(&mci->edac_mci_kobj);
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}
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