GOTO(out, rc);
out:
+ if (dev->od_is_ost) {
+ sa_handle_t *hdl;
+ uint64_t nlink, mode;
+
+ rc = -sa_handle_get(dev->od_os, oid, NULL, SA_HDL_PRIVATE,
+ &hdl);
+ if (rc)
+ GOTO(cleanup, rc);
+
+ rc = -sa_lookup(hdl, SA_ZPL_MODE(dev), &mode, sizeof(mode));
+ if (rc || !S_ISREG(mode)) {
+ sa_handle_destroy(hdl);
+ GOTO(cleanup, rc);
+ }
+
+ rc = -sa_lookup(hdl, SA_ZPL_LINKS(dev), &nlink, sizeof(nlink));
+ if (rc == 0 && nlink > 1)
+ scrub->os_has_ml_file = 1;
+
+ sa_handle_destroy(hdl);
+ }
+
+cleanup:
if (nvbuf)
nvlist_free(nvbuf);
return 0;
}
+static int osd_scan_ml_file_main(const struct lu_env *env,
+ struct osd_device *dev);
+
static int osd_scrub_main(void *args)
{
struct lu_env env;
struct lustre_scrub *scrub = &dev->od_scrub;
struct lu_fid *fid;
uint64_t oid;
- int rc = 0;
+ int rc = 0, ret;
ENTRY;
rc = lu_env_init(&env, LCT_LOCAL | LCT_DT_THREAD);
GOTO(post, rc);
post:
+ if (scrub->os_has_ml_file) {
+ ret = osd_scan_ml_file_main(&env, dev);
+ if (ret != 0)
+ rc = ret;
+ }
+
rc = osd_scrub_post(&env, dev, rc);
CDEBUG(D_LFSCK, "%s: OI scrub: stop, pos = %llu: rc = %d\n",
scrub->os_name, scrub->os_pos_current, rc);
RETURN(ret);
}
+
+typedef int (*scan_dir_helper_t)(const struct lu_env *env,
+ struct osd_device *dev, uint64_t dir_oid,
+ struct osd_zap_it *ozi);
+
+static int osd_scan_dir(const struct lu_env *env, struct osd_device *dev,
+ uint64_t id, scan_dir_helper_t cb)
+{
+ struct osd_zap_it *it;
+ struct luz_direntry *zde;
+ zap_attribute_t *za;
+ int rc;
+
+ ENTRY;
+
+ OBD_SLAB_ALLOC_PTR_GFP(it, osd_zapit_cachep, GFP_NOFS);
+ if (it == NULL)
+ RETURN(-ENOMEM);
+
+ rc = osd_zap_cursor_init(&it->ozi_zc, dev->od_os, id, 0);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ za = &it->ozi_za;
+ zde = &it->ozi_zde;
+ while (1) {
+ rc = -zap_cursor_retrieve(it->ozi_zc, za);
+ if (unlikely(rc)) {
+ if (rc == -ENOENT)
+ rc = 0;
+
+ break;
+ }
+
+ if (name_is_dot_or_dotdot(za->za_name, strlen(za->za_name))) {
+ zap_cursor_advance(it->ozi_zc);
+ continue;
+ }
+
+ strncpy(it->ozi_name, za->za_name, sizeof(it->ozi_name));
+ if (za->za_integer_length != 8) {
+ rc = -EIO;
+ break;
+ }
+
+ rc = osd_zap_lookup(dev, it->ozi_zc->zc_zapobj, NULL,
+ za->za_name, za->za_integer_length,
+ sizeof(*zde) / za->za_integer_length, zde);
+ if (rc)
+ break;
+
+ rc = cb(env, dev, id, it);
+ if (rc)
+ break;
+
+ zap_cursor_advance(it->ozi_zc);
+ }
+ osd_zap_cursor_fini(it->ozi_zc);
+
+out:
+ OBD_SLAB_FREE_PTR(it, osd_zapit_cachep);
+ RETURN(rc);
+}
+
+static int osd_remove_ml_file(const struct lu_env *env, struct osd_device *dev,
+ uint64_t dir, uint64_t id, struct lu_fid *fid,
+ char *name)
+{
+ struct osd_thread_info *info = osd_oti_get(env);
+ struct dt_object *dt;
+ struct osd_object *obj = NULL;
+ dmu_tx_t *tx;
+ sa_handle_t *hdl;
+ uint64_t nlink;
+ int rc;
+
+ rc = -sa_handle_get(dev->od_os, id, NULL, SA_HDL_PRIVATE, &hdl);
+ if (rc)
+ RETURN(rc);
+
+ dt = lu2dt(lu_object_find_slice(env, osd2lu_dev(dev), fid, NULL));
+ if (IS_ERR(dt))
+ RETURN(PTR_ERR(dt));
+
+ if (dt) {
+ obj = osd_dt_obj(dt);
+ down_read(&obj->oo_guard);
+ }
+
+ rc = -sa_lookup(hdl, SA_ZPL_LINKS(dev), &nlink, sizeof(nlink));
+ if (rc)
+ GOTO(out, rc);
+
+ if (nlink <= 1) {
+ CERROR("%s: multi-link file O/%s/%s/%s has nlink %llu\n",
+ osd_name(dev), info->oti_seq_name, info->oti_dir_name,
+ name, nlink);
+ GOTO(out, rc = 0);
+ }
+
+ tx = dmu_tx_create(dev->od_os);
+ if (!tx) {
+ CERROR("%s: fail to create tx to remove multi-link file!\n",
+ osd_name(dev));
+ GOTO(out, rc = -ENOMEM);
+ }
+
+ dmu_tx_hold_zap(tx, dir, FALSE, NULL);
+ rc = -dmu_tx_assign(tx, TXG_WAIT);
+ if (rc)
+ GOTO(abort, rc);
+
+ nlink--;
+ rc = -sa_update(hdl, SA_ZPL_LINKS(dev), &nlink, sizeof(nlink), tx);
+ if (rc)
+ GOTO(abort, rc);
+
+ rc = -zap_remove(dev->od_os, dir, name, tx);
+ if (rc)
+ GOTO(abort, rc);
+
+ dmu_tx_commit(tx);
+ GOTO(out, rc);
+
+abort:
+ dmu_tx_abort(tx);
+
+out:
+ if (dt) {
+ up_read(&obj->oo_guard);
+ dt_object_put_nocache(env, dt);
+ }
+
+ sa_handle_destroy(hdl);
+ RETURN(rc);
+}
+
+static int osd_scan_ml_file(const struct lu_env *env, struct osd_device *dev,
+ uint64_t dir_oid, struct osd_zap_it *ozi)
+{
+ struct osd_thread_info *info = osd_oti_get(env);
+ struct lu_fid *fid = &info->oti_fid;
+ struct ost_id *ostid = &info->oti_ostid;
+ char name[32];
+ u64 seq;
+ int rc = 0;
+
+ ENTRY;
+
+ rc = osd_get_fid_by_oid(env, dev, ozi->ozi_zde.lzd_reg.zde_dnode, fid);
+ if (rc)
+ RETURN(rc);
+
+ seq = fid_seq(fid);
+ fid_to_ostid(fid, ostid);
+
+ snprintf(name, sizeof(name), (fid_seq_is_rsvd(seq) ||
+ fid_seq_is_mdt0(seq)) ? "%llu" : "%llx",
+ fid_seq_is_idif(seq) ? 0 : seq);
+ if (strcmp(info->oti_seq_name, name) != 0)
+ GOTO(fix, rc);
+
+ snprintf(name, sizeof(name), "d%d",
+ (int)ostid_id(ostid) % OSD_OST_MAP_SIZE);
+ if (strcmp(info->oti_dir_name, name) != 0)
+ GOTO(fix, rc);
+
+ snprintf(name, sizeof(name), "%llu", ostid_id(ostid));
+ if (strcmp(ozi->ozi_name, name) == 0)
+ RETURN(0);
+
+fix:
+ CDEBUG(D_LFSCK, "%s: the file O/%s/%s/%s is corrupted\n",
+ osd_name(dev), info->oti_seq_name, info->oti_dir_name,
+ ozi->ozi_name);
+
+ rc = osd_remove_ml_file(env, dev, dir_oid,
+ ozi->ozi_zde.lzd_reg.zde_dnode, fid,
+ ozi->ozi_name);
+ RETURN(rc);
+}
+
+static int osd_scan_ml_file_dir(const struct lu_env *env,
+ struct osd_device *dev, uint64_t dir_oid,
+ struct osd_zap_it *ozi)
+{
+ struct osd_thread_info *info = osd_oti_get(env);
+
+ if (!S_ISDIR(cpu_to_le16(DTTOIF(ozi->ozi_zde.lzd_reg.zde_type))))
+ return 0;
+
+ info->oti_dir_name = ozi->ozi_name;
+ return osd_scan_dir(env, dev, ozi->ozi_zde.lzd_reg.zde_dnode,
+ osd_scan_ml_file);
+}
+
+static int osd_scan_ml_file_seq(const struct lu_env *env,
+ struct osd_device *dev, uint64_t dir_oid,
+ struct osd_zap_it *ozi)
+{
+ struct osd_thread_info *info = osd_oti_get(env);
+
+ if (!S_ISDIR(cpu_to_le16(DTTOIF(ozi->ozi_zde.lzd_reg.zde_type))))
+ return 0;
+
+ info->oti_seq_name = ozi->ozi_name;
+ return osd_scan_dir(env, dev, ozi->ozi_zde.lzd_reg.zde_dnode,
+ osd_scan_ml_file_dir);
+}
+
+static int osd_scan_ml_file_main(const struct lu_env *env,
+ struct osd_device *dev)
+{
+ return osd_scan_dir(env, dev, dev->od_O_id, osd_scan_ml_file_seq);
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff