+/* initial OI scrub */
+
+typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
+ struct dentry *, filldir_t filldir);
+
+static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
+ loff_t offset, __u64 ino, unsigned d_type);
+
+static int
+osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
+ struct dentry *dentry, filldir_t filldir);
+static int
+osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
+ struct dentry *dentry, filldir_t filldir);
+
+static int
+osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
+ struct dentry *dentry, filldir_t filldir);
+
+enum osd_lf_flags {
+ OLF_SCAN_SUBITEMS = 0x0001,
+ OLF_HIDE_FID = 0x0002,
+ OLF_SHOW_NAME = 0x0004,
+};
+
+struct osd_lf_map {
+ char *olm_name;
+ struct lu_fid olm_fid;
+ __u16 olm_flags;
+ scandir_t olm_scandir;
+ filldir_t olm_filldir;
+};
+
+/* Add the new introduced local files in the list in the future. */
+static const struct osd_lf_map osd_lf_maps[] = {
+ /* CATALOGS */
+ { CATLIST, { FID_SEQ_LOCAL_FILE, LLOG_CATALOGS_OID, 0 }, OLF_SHOW_NAME,
+ NULL, NULL },
+
+ /* CONFIGS */
+ { MOUNT_CONFIGS_DIR, { FID_SEQ_LOCAL_FILE, MGS_CONFIGS_OID, 0 },
+ OLF_SCAN_SUBITEMS, osd_ios_general_scan,
+ osd_ios_varfid_fill },
+
+ /* NIDTBL_VERSIONS */
+ { MGS_NIDTBL_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
+ osd_ios_general_scan, osd_ios_varfid_fill },
+
+ /* PENDING */
+ { "PENDING", { FID_SEQ_LOCAL_FILE, MDD_ORPHAN_OID, 0 }, 0, NULL, NULL },
+
+ /* ROOT */
+ { "ROOT", { FID_SEQ_LOCAL_FILE, MDD_ROOT_INDEX_OID, 0 },
+ OLF_SCAN_SUBITEMS | OLF_HIDE_FID, osd_ios_ROOT_scan, NULL },
+
+ /* capa_keys */
+ { CAPA_KEYS, { FID_SEQ_LOCAL_FILE, MDD_CAPA_KEYS_OID, 0 }, 0,
+ NULL, NULL },
+
+ /* changelog_catalog */
+ { CHANGELOG_CATALOG, { 0, 0, 0 }, 0, NULL, NULL },
+
+ /* changelog_users */
+ { CHANGELOG_USERS, { 0, 0, 0 }, 0, NULL, NULL },
+
+ /* fld */
+ { "fld", { FID_SEQ_LOCAL_FILE, FLD_INDEX_OID, 0 }, OLF_SHOW_NAME,
+ NULL, NULL },
+
+ /* last_rcvd */
+ { LAST_RCVD, { FID_SEQ_LOCAL_FILE, LAST_RECV_OID, 0 }, OLF_SHOW_NAME,
+ NULL, NULL },
+
+ /* lfsck_bookmark */
+ { "lfsck_bookmark", { FID_SEQ_LOCAL_FILE, LFSCK_BOOKMARK_OID, 0 }, 0,
+ NULL, NULL },
+
+ /* lov_objid */
+ { LOV_OBJID, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OID, 0 }, OLF_SHOW_NAME,
+ NULL, NULL },
+
+ /* lov_objseq */
+ { LOV_OBJSEQ, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OSEQ, 0 },
+ OLF_SHOW_NAME, NULL, NULL },
+
+ /* quota_master */
+ { QMT_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
+ osd_ios_general_scan, osd_ios_varfid_fill },
+
+ /* quota_slave */
+ { QSD_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
+ osd_ios_general_scan, osd_ios_varfid_fill },
+
+ /* seq-200000003-lastid */
+ { "seq-200000003-lastid", { FID_SEQ_LOCAL_NAME, 1, 0 }, 0,
+ NULL, NULL },
+
+ /* seq_ctl */
+ { "seq_ctl", { FID_SEQ_LOCAL_FILE, FID_SEQ_CTL_OID, 0 },
+ OLF_SHOW_NAME, NULL, NULL },
+
+ /* seq_srv */
+ { "seq_srv", { FID_SEQ_LOCAL_FILE, FID_SEQ_SRV_OID, 0 },
+ OLF_SHOW_NAME, NULL, NULL },
+
+ /* LAST_GROUP */
+ { "LAST_GROUP", { FID_SEQ_LOCAL_FILE, OFD_LAST_GROUP_OID, 0 },
+ OLF_SHOW_NAME, NULL, NULL },
+
+ /* health_check */
+ { HEALTH_CHECK, { FID_SEQ_LOCAL_FILE, OFD_HEALTH_CHECK_OID, 0 },
+ OLF_SHOW_NAME, NULL, NULL },
+
+ /* OBJECTS, upgrade from old device */
+ { OBJECTS, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, osd_ios_OBJECTS_scan, NULL },
+
+ /* lquota_v2.user, upgrade from old device */
+ { "lquota_v2.user", { 0, 0, 0 }, 0, NULL, NULL },
+
+ /* lquota_v2.group, upgrade from old device */
+ { "lquota_v2.group", { 0, 0, 0 }, 0, NULL, NULL },
+
+ { NULL, { 0, 0, 0 }, 0, NULL, NULL }
+};
+
+struct osd_ios_item {
+ cfs_list_t oii_list;
+ struct dentry *oii_dentry;
+ scandir_t oii_scandir;
+ filldir_t oii_filldir;
+};
+
+struct osd_ios_filldir_buf {
+ struct osd_thread_info *oifb_info;
+ struct osd_device *oifb_dev;
+ struct dentry *oifb_dentry;
+};
+
+static inline struct dentry *
+osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
+{
+ struct dentry *dentry;
+
+ dentry = ll_lookup_one_len(name, parent, namelen);
+ if (!IS_ERR(dentry) && dentry->d_inode == NULL) {
+ dput(dentry);
+ return ERR_PTR(-ENOENT);
+ }
+
+ return dentry;
+}
+
+static inline void
+osd_ios_llogname2fid(struct lu_fid *fid, const char *name, int namelen)
+{
+ obd_id id = 0;
+ int i = 0;
+
+ fid->f_seq = FID_SEQ_LLOG;
+ while (i < namelen)
+ id = id * 10 + name[i++] - '0';
+
+ fid->f_oid = id & 0x00000000ffffffffULL;
+ fid->f_ver = id >> 32;
+}
+
+static inline void
+osd_ios_Oname2fid(struct lu_fid *fid, const char *name, int namelen)
+{
+ __u64 seq = 0;
+ int i = 0;
+
+ while (i < namelen)
+ seq = seq * 10 + name[i++] - '0';
+
+ lu_last_id_fid(fid, seq);
+}
+
+static int
+osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
+ scandir_t scandir, filldir_t filldir)
+{
+ struct osd_ios_item *item;
+
+ OBD_ALLOC_PTR(item);
+ if (item == NULL)
+ return -ENOMEM;
+
+ CFS_INIT_LIST_HEAD(&item->oii_list);
+ item->oii_dentry = dget(dentry);
+ item->oii_scandir = scandir;
+ item->oii_filldir = filldir;
+ cfs_list_add_tail(&item->oii_list, &dev->od_ios_list);
+ return 0;
+}
+
+/**
+ * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
+ *
+ * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
+ * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
+ * reference the inode, or fixed if it is missing or references another inode.
+ */
+static int
+osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
+ struct inode *inode, const struct lu_fid *fid, int flags)
+{
+ struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
+ struct osd_inode_id *id = &info->oti_id;
+ struct osd_inode_id *id2 = &info->oti_id2;
+ struct osd_scrub *scrub = &dev->od_scrub;
+ struct scrub_file *sf = &scrub->os_file;
+ struct lu_fid tfid;
+ int rc;
+ ENTRY;
+
+ rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
+ if (rc != 0 && rc != -ENODATA)
+ RETURN(rc);
+
+ osd_id_gen(id, inode->i_ino, inode->i_generation);
+ if (rc == -ENODATA) {
+ if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID)
+ lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
+ else
+ tfid = *fid;
+ rc = osd_ea_fid_set(info, inode, &tfid);
+ if (rc != 0)
+ RETURN(rc);
+ } else {
+ tfid = lma->lma_self_fid;
+ }
+
+ rc = __osd_oi_lookup(info, dev, &tfid, id2);
+ if (rc != 0) {
+ if (rc != -ENOENT)
+ RETURN(rc);
+
+ rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
+ DTO_INDEX_INSERT);
+ RETURN(rc);
+ }
+
+ if (osd_id_eq_strict(id, id2))
+ RETURN(0);
+
+ if (!(sf->sf_flags & SF_INCONSISTENT)) {
+ osd_scrub_file_reset(scrub,
+ LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
+ SF_INCONSISTENT);
+ rc = osd_scrub_file_store(scrub);
+ if (rc != 0)
+ RETURN(rc);
+ }
+
+ rc = osd_scrub_refresh_mapping(info, dev, &tfid, id, DTO_INDEX_UPDATE);
+
+ RETURN(rc);
+}
+
+static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
+ loff_t offset, __u64 ino, unsigned d_type)
+{
+ struct osd_ios_filldir_buf *fill_buf = buf;
+ struct osd_device *dev = fill_buf->oifb_dev;
+ struct dentry *child;
+ int rc;
+ ENTRY;
+
+ /* skip any '.' started names */
+ if (name[0] == '.')
+ RETURN(0);
+
+ child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
+ if (IS_ERR(child))
+ RETURN(PTR_ERR(child));
+
+ rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
+ NULL, 0);
+ if (rc == 0 && S_ISDIR(child->d_inode->i_mode))
+ rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
+ osd_ios_varfid_fill);
+ dput(child);
+
+ RETURN(rc);
+}
+
+static int osd_ios_root_fill(void *buf, const char *name, int namelen,
+ loff_t offset, __u64 ino, unsigned d_type)
+{
+ struct osd_ios_filldir_buf *fill_buf = buf;
+ struct osd_device *dev = fill_buf->oifb_dev;
+ const struct osd_lf_map *map;
+ struct dentry *child;
+ int rc = 0;
+ ENTRY;
+
+ /* skip any '.' started names */
+ if (name[0] == '.')
+ RETURN(0);
+
+ for (map = osd_lf_maps; map->olm_name != NULL; map++) {
+ if (strlen(map->olm_name) != namelen)
+ continue;
+
+ if (strncmp(map->olm_name, name, namelen) == 0)
+ break;
+ }
+
+ if (map->olm_name == NULL)
+ RETURN(0);
+
+ child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
+ if (IS_ERR(child))
+ RETURN(PTR_ERR(child));
+
+ rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
+ &map->olm_fid, map->olm_flags);
+ if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
+ rc = osd_ios_new_item(dev, child, map->olm_scandir,
+ map->olm_filldir);
+ dput(child);
+
+ RETURN(rc);
+}
+
+static int
+osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
+ struct dentry *dentry, filldir_t filldir)
+{
+ struct osd_ios_filldir_buf buf = { info, dev, dentry };
+ struct file *filp = &info->oti_it_ea.oie_file;
+ struct inode *inode = dentry->d_inode;
+ const struct file_operations *fops = inode->i_fop;
+ int rc;
+ ENTRY;
+
+ LASSERT(filldir != NULL);
+
+ filp->f_pos = 0;
+ filp->f_dentry = dentry;
+ filp->f_mode = FMODE_64BITHASH;
+ filp->f_mapping = inode->i_mapping;
+ filp->f_op = fops;
+ filp->private_data = NULL;
+
+ rc = fops->readdir(filp, &buf, filldir);
+ fops->release(inode, filp);
+
+ RETURN(rc);
+}
+
+static int
+osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
+ struct dentry *dentry, filldir_t filldir)
+{
+ struct osd_scrub *scrub = &dev->od_scrub;
+ struct scrub_file *sf = &scrub->os_file;
+ struct dentry *child;
+ int rc;
+ ENTRY;
+
+ /* It is existing MDT device. */
+ dev->od_handle_nolma = 1;
+ child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
+ strlen(dot_lustre_name));
+ if (IS_ERR(child)) {
+ rc = PTR_ERR(child);
+ if (rc == -ENOENT) {
+ /* It is 1.8 MDT device. */
+ if (!(sf->sf_flags & SF_UPGRADE)) {
+ osd_scrub_file_reset(scrub,
+ LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
+ SF_UPGRADE);
+ rc = osd_scrub_file_store(scrub);
+ } else {
+ rc = 0;
+ }
+ }
+ } else {
+ rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
+ dput(child);
+ }
+
+ RETURN(rc);
+}
+
+static int
+osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
+ struct dentry *dentry, filldir_t filldir)
+{
+ struct dentry *child;
+ int rc;
+ ENTRY;
+
+ child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
+ if (!IS_ERR(child)) {
+ rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
+ dput(child);
+ } else {
+ rc = PTR_ERR(child);
+ }
+
+ if (rc != 0 && rc != -ENOENT)
+ RETURN(rc);
+
+ child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
+ if (!IS_ERR(child)) {
+ rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
+ dput(child);
+ } else {
+ rc = PTR_ERR(child);
+ }
+
+ if (rc == -ENOENT)
+ rc = 0;
+
+ RETURN(rc);
+}
+
+static int osd_initial_OI_scrub(struct osd_thread_info *info,
+ struct osd_device *dev)
+{
+ struct osd_ios_item *item = NULL;
+ scandir_t scandir = osd_ios_general_scan;
+ filldir_t filldir = osd_ios_root_fill;
+ struct dentry *dentry = osd_sb(dev)->s_root;
+ int rc;
+ ENTRY;
+
+ /* XXX: This is a temporary flag to disable initial OI scrub until
+ * the patcp for handling special FIDs in the OI files ready.
+ * We do not want to merge the two patches together, because
+ * it makes the patch too large to be reviewed. */
+ if (!dev->od_init_scrub)
+ RETURN(0);
+
+ while (1) {
+ rc = scandir(info, dev, dentry, filldir);
+ if (item != NULL) {
+ dput(item->oii_dentry);
+ OBD_FREE_PTR(item);
+ }
+
+ if (rc != 0)
+ break;
+
+ if (cfs_list_empty(&dev->od_ios_list))
+ break;
+
+ item = cfs_list_entry(dev->od_ios_list.next,
+ struct osd_ios_item, oii_list);
+ cfs_list_del_init(&item->oii_list);
+
+ LASSERT(item->oii_scandir != NULL);
+ scandir = item->oii_scandir;
+ filldir = item->oii_filldir;
+ dentry = item->oii_dentry;
+ }
+
+ while (!cfs_list_empty(&dev->od_ios_list)) {
+ item = cfs_list_entry(dev->od_ios_list.next,
+ struct osd_ios_item, oii_list);
+ cfs_list_del_init(&item->oii_list);
+ dput(item->oii_dentry);
+ OBD_FREE_PTR(item);
+ }
+
+ RETURN(rc);
+}
+
+char *osd_lf_fid2name(const struct lu_fid *fid)
+{
+ const struct osd_lf_map *map = osd_lf_maps;
+
+ while (map->olm_name != NULL) {
+ if (!lu_fid_eq(fid, &map->olm_fid)) {
+ map++;
+ continue;
+ }
+
+ if (map->olm_flags & OLF_SHOW_NAME)
+ return map->olm_name;
+ else
+ return "";
+ }
+
+ return NULL;
+}
+
git://git.whamcloud.com / fs / lustre-release.git / commitdiff