* GPL HEADER END
*/
/*
- * Copyright (c) 2012, 2013, Intel Corporation.
+ * Copyright (c) 2013, 2014, Intel Corporation.
*/
/*
* lustre/lfsck/lfsck_engine.c
#include "lfsck_internal.h"
-static int lfsck_unpack_ent(struct lu_dirent *ent, __u64 *cookie, __u16 *type)
+int lfsck_unpack_ent(struct lu_dirent *ent, __u64 *cookie, __u16 *type)
{
struct luda_type *lt;
int align = sizeof(*lt) - 1;
iops->put(env, di);
}
-static void lfsck_close_dir(const struct lu_env *env,
- struct lfsck_instance *lfsck)
-{
- struct dt_object *dir_obj = lfsck->li_obj_dir;
- const struct dt_it_ops *dir_iops = &dir_obj->do_index_ops->dio_it;
- struct dt_it *dir_di = lfsck->li_di_dir;
-
- lfsck_di_dir_put(env, lfsck);
- dir_iops->fini(env, dir_di);
- lfsck->li_obj_dir = NULL;
- lfsck_object_put(env, dir_obj);
-}
-
static int lfsck_update_lma(const struct lu_env *env,
struct lfsck_instance *lfsck, struct dt_object *obj)
{
fld_range_set_mdt(range);
rc = fld_local_lookup(env, ss->ss_server_fld,
fid_seq(fid), range);
- if (rc != 0 || range->lsr_index != idx) {
+ if (rc != 0 || range->lsr_index != idx)
/* Current FID should NOT be for the input parameter
* @obj, because the lfsck_master_oit_engine() has
* filtered out agent object. So current FID is for
* So the ancestor is a remote directory. The input
* parameter @obj is local directory, and should be
* scanned under such case. */
- LASSERT(depth > 0);
-
return 1;
- }
/* normal FID on this target (locally) must be for the
* client-side visiable object. */
return rc;
}
+static int lfsck_load_stripe_lmv(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
+ struct dt_object *obj)
+{
+ struct lmv_mds_md_v1 *lmv = &lfsck_env_info(env)->lti_lmv;
+ struct lfsck_lmv *llmv;
+ int rc;
+ ENTRY;
+
+ LASSERT(lfsck->li_obj_dir == NULL);
+ LASSERT(lfsck->li_lmv == NULL);
+
+ rc = lfsck_read_stripe_lmv(env, obj, lmv);
+ if (rc == -ENODATA) {
+ lfsck->li_obj_dir = lfsck_object_get(obj);
+
+ RETURN(0);
+ }
+
+ if (rc < 0)
+ RETURN(rc);
+
+ OBD_ALLOC_PTR(llmv);
+ if (llmv == NULL)
+ RETURN(-ENOMEM);
+
+ if (lmv->lmv_magic == LMV_MAGIC) {
+ struct lfsck_slave_lmv_rec *lslr;
+ __u32 stripes;
+
+ llmv->ll_lmv_master = 1;
+ if (lmv->lmv_stripe_count < 1)
+ stripes = LFSCK_LMV_DEF_STRIPES;
+ else if (lmv->lmv_stripe_count > LFSCK_LMV_MAX_STRIPES)
+ stripes = LFSCK_LMV_MAX_STRIPES;
+ else
+ stripes = lmv->lmv_stripe_count;
+
+ OBD_ALLOC_LARGE(lslr, sizeof(*lslr) * stripes);
+ if (lslr == NULL) {
+ OBD_FREE_PTR(llmv);
+
+ RETURN(-ENOMEM);
+ }
+
+ /* Find the object against the bottom device. */
+ obj = lfsck_object_find_by_dev(env, lfsck->li_bottom,
+ lfsck_dto2fid(obj));
+ if (IS_ERR(obj)) {
+ OBD_FREE_LARGE(lslr, sizeof(*lslr) * stripes);
+ OBD_FREE_PTR(llmv);
+
+ RETURN(PTR_ERR(obj));
+ }
+
+ llmv->ll_stripes_allocated = stripes;
+ llmv->ll_hash_type = LMV_HASH_TYPE_UNKNOWN;
+ llmv->ll_lslr = lslr;
+ lfsck->li_obj_dir = obj;
+ } else {
+ llmv->ll_lmv_slave = 1;
+ lfsck->li_obj_dir = lfsck_object_get(obj);
+ }
+
+ llmv->ll_lmv = *lmv;
+ atomic_set(&llmv->ll_ref, 1);
+ lfsck->li_lmv = llmv;
+
+ RETURN(0);
+}
+
/* LFSCK wrap functions */
static void lfsck_fail(const struct lu_env *env, struct lfsck_instance *lfsck,
}
}
+void lfsck_close_dir(const struct lu_env *env,
+ struct lfsck_instance *lfsck, int result)
+{
+ struct lfsck_component *com;
+ ENTRY;
+
+ if (lfsck->li_lmv != NULL) {
+ lfsck->li_lmv->ll_exit_value = result;
+ if (lfsck->li_obj_dir != NULL) {
+ list_for_each_entry(com, &lfsck->li_list_dir,
+ lc_link_dir) {
+ com->lc_ops->lfsck_close_dir(env, com);
+ }
+ }
+
+ lfsck_lmv_put(env, lfsck->li_lmv);
+ lfsck->li_lmv = NULL;
+ }
+
+ if (lfsck->li_di_dir != NULL) {
+ const struct dt_it_ops *dir_iops;
+ struct dt_it *dir_di = lfsck->li_di_dir;
+
+ LASSERT(lfsck->li_obj_dir != NULL);
+
+ dir_iops = &lfsck->li_obj_dir->do_index_ops->dio_it;
+ lfsck_di_dir_put(env, lfsck);
+ dir_iops->fini(env, dir_di);
+ }
+
+ if (lfsck->li_obj_dir != NULL) {
+ struct dt_object *dir_obj = lfsck->li_obj_dir;
+
+ lfsck->li_obj_dir = NULL;
+ lfsck_object_put(env, dir_obj);
+ }
+
+ EXIT;
+}
+
+int lfsck_open_dir(const struct lu_env *env,
+ struct lfsck_instance *lfsck, __u64 cookie)
+{
+ struct dt_object *obj = lfsck->li_obj_dir;
+ struct dt_it *di = lfsck->li_di_dir;
+ struct lfsck_component *com;
+ const struct dt_it_ops *iops;
+ int rc = 0;
+ ENTRY;
+
+ LASSERT(obj != NULL);
+ LASSERT(di == NULL);
+
+ if (unlikely(!dt_try_as_dir(env, obj)))
+ GOTO(out, rc = -ENOTDIR);
+
+ list_for_each_entry(com, &lfsck->li_list_dir, lc_link_dir) {
+ rc = com->lc_ops->lfsck_open_dir(env, com);
+ if (rc != 0)
+ GOTO(out, rc);
+ }
+
+ iops = &obj->do_index_ops->dio_it;
+ di = iops->init(env, obj, lfsck->li_args_dir, BYPASS_CAPA);
+ if (IS_ERR(di))
+ GOTO(out, rc = PTR_ERR(di));
+
+ rc = iops->load(env, di, cookie);
+ if (rc == 0 || (rc > 0 && cookie > 0))
+ rc = iops->next(env, di);
+ else if (rc > 0)
+ rc = 0;
+
+ if (rc != 0) {
+ iops->put(env, di);
+ iops->fini(env, di);
+ } else {
+ lfsck->li_cookie_dir = iops->store(env, di);
+ spin_lock(&lfsck->li_lock);
+ lfsck->li_di_dir = di;
+ spin_unlock(&lfsck->li_lock);
+ }
+
+ GOTO(out, rc);
+
+out:
+ if (rc != 0)
+ lfsck_close_dir(env, lfsck, rc);
+
+ return rc;
+}
+
static int lfsck_checkpoint(const struct lu_env *env,
struct lfsck_instance *lfsck)
{
struct lfsck_position *pos = NULL;
const struct dt_it_ops *iops =
&lfsck->li_obj_oit->do_index_ops->dio_it;
- struct dt_it *di;
int rc;
ENTRY;
unlikely(!S_ISDIR(lfsck_object_type(obj))))
GOTO(out, rc = 0);
- if (unlikely(!dt_try_as_dir(env, obj)))
- GOTO(out, rc = -ENOTDIR);
-
- /* Init the namespace-based directory traverse. */
- iops = &obj->do_index_ops->dio_it;
- di = iops->init(env, obj, lfsck->li_args_dir, BYPASS_CAPA);
- if (IS_ERR(di))
- GOTO(out, rc = PTR_ERR(di));
-
- LASSERT(pos->lp_dir_cookie < MDS_DIR_END_OFF);
+ rc = lfsck_load_stripe_lmv(env, lfsck, obj);
+ if (rc == 0) {
+ /* For the master MDT-object of a striped directory,
+ * reset the iteration from the directory beginning. */
+ if (lfsck->li_lmv != NULL && lfsck->li_lmv->ll_lmv_master)
+ pos->lp_dir_cookie = 0;
- rc = iops->load(env, di, pos->lp_dir_cookie);
- if ((rc == 0) || (rc > 0 && pos->lp_dir_cookie > 0))
- rc = iops->next(env, di);
- else if (rc > 0)
- rc = 0;
-
- if (rc != 0) {
- iops->put(env, di);
- iops->fini(env, di);
- GOTO(out, rc);
+ rc = lfsck_open_dir(env, lfsck, pos->lp_dir_cookie);
+ if (rc > 0)
+ /* The end of the directory. */
+ rc = 0;
}
- lfsck->li_obj_dir = lfsck_object_get(obj);
- lfsck->li_cookie_dir = iops->store(env, di);
- spin_lock(&lfsck->li_lock);
- lfsck->li_di_dir = di;
- spin_unlock(&lfsck->li_lock);
-
- GOTO(out, rc = 0);
+ GOTO(out, rc);
out:
if (obj != NULL)
lfsck_object_put(env, obj);
- if (rc < 0) {
+ if (rc != 0) {
+ lfsck_close_dir(env, lfsck, rc);
list_for_each_entry_safe(com, next, &lfsck->li_list_scan,
- lc_link)
+ lc_link) {
com->lc_ops->lfsck_post(env, com, rc, true);
+ }
return rc;
}
struct lfsck_instance *lfsck, struct dt_object *obj)
{
struct lfsck_component *com;
- const struct dt_it_ops *iops;
- struct dt_it *di;
int rc;
ENTRY;
if (rc <= 0)
GOTO(out, rc);
- if (unlikely(!dt_try_as_dir(env, obj)))
- GOTO(out, rc = -ENOTDIR);
-
- iops = &obj->do_index_ops->dio_it;
- di = iops->init(env, obj, lfsck->li_args_dir, BYPASS_CAPA);
- if (IS_ERR(di))
- GOTO(out, rc = PTR_ERR(di));
-
- rc = iops->load(env, di, 0);
+ rc = lfsck_load_stripe_lmv(env, lfsck, obj);
if (rc == 0)
- rc = iops->next(env, di);
- else if (rc > 0)
- rc = 0;
+ rc = lfsck_open_dir(env, lfsck, 0);
- if (rc != 0) {
- iops->put(env, di);
- iops->fini(env, di);
- GOTO(out, rc);
- }
-
- lfsck->li_obj_dir = lfsck_object_get(obj);
- lfsck->li_cookie_dir = iops->store(env, di);
- spin_lock(&lfsck->li_lock);
- lfsck->li_di_dir = di;
- spin_unlock(&lfsck->li_lock);
-
- GOTO(out, rc = 0);
+ GOTO(out, rc);
out:
if (rc < 0)
lfsck_fail(env, lfsck, false);
- return (rc > 0 ? 0 : rc);
+
+ if (rc != 0)
+ lfsck_close_dir(env, lfsck, rc);
+
+ return rc > 0 ? 0 : rc;
}
static int lfsck_exec_dir(const struct lu_env *env,
return 0;
}
+static int lfsck_master_dir_engine(const struct lu_env *env,
+ struct lfsck_instance *lfsck);
+
static int lfsck_post(const struct lu_env *env, struct lfsck_instance *lfsck,
int result)
{
struct lfsck_component *com;
struct lfsck_component *next;
- int rc = 0;
- int rc1 = 0;
+ int rc = result;
lfsck_pos_fill(env, lfsck, &lfsck->li_pos_checkpoint, false);
+ lfsck_close_dir(env, lfsck, result);
+
+ while (thread_is_running(&lfsck->li_thread) && rc > 0 &&
+ !list_empty(&lfsck->li_list_lmv)) {
+ struct lfsck_lmv_unit *llu;
+
+ spin_lock(&lfsck->li_lock);
+ llu = list_entry(lfsck->li_list_lmv.next,
+ struct lfsck_lmv_unit, llu_link);
+ list_del_init(&llu->llu_link);
+ spin_unlock(&lfsck->li_lock);
+
+ lfsck->li_lmv = &llu->llu_lmv;
+ lfsck->li_obj_dir = lfsck_object_get(llu->llu_obj);
+ rc = lfsck_open_dir(env, lfsck, 0);
+ if (rc == 0) {
+ rc = lfsck_master_dir_engine(env, lfsck);
+ lfsck_close_dir(env, lfsck, result);
+ }
+ }
+
+ result = rc;
+
list_for_each_entry_safe(com, next, &lfsck->li_list_scan, lc_link) {
rc = com->lc_ops->lfsck_post(env, com, result, false);
if (rc != 0)
- rc1 = rc;
+ CDEBUG(D_LFSCK, "%s: lfsck_post at the component %u: "
+ "rc = %d\n", lfsck_lfsck2name(lfsck),
+ (__u32)com->lc_type, rc);
}
lfsck->li_time_last_checkpoint = cfs_time_current();
ENTRY;
do {
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_DELAY2) &&
- cfs_fail_val > 0) {
- struct l_wait_info lwi;
-
- lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val),
- NULL, NULL);
- l_wait_event(thread->t_ctl_waitq,
- !thread_is_running(thread),
- &lwi);
-
- if (unlikely(!thread_is_running(thread))) {
- CDEBUG(D_LFSCK, "%s: scan dir exit for engine "
- "stop, parent "DFID", cookie "LPX64"\n",
- lfsck_lfsck2name(lfsck),
- PFID(lfsck_dto2fid(dir)),
- lfsck->li_cookie_dir);
- RETURN(0);
- }
+ if (CFS_FAIL_TIMEOUT(OBD_FAIL_LFSCK_DELAY2, cfs_fail_val) &&
+ unlikely(!thread_is_running(thread))) {
+ CDEBUG(D_LFSCK, "%s: scan dir exit for engine stop, "
+ "parent "DFID", cookie "LPX64"\n",
+ lfsck_lfsck2name(lfsck),
+ PFID(lfsck_dto2fid(dir)), lfsck->li_cookie_dir);
+
+ RETURN(0);
}
lfsck->li_new_scanned++;
} while (rc == 0);
if (rc > 0 && !lfsck->li_oit_over)
- lfsck_close_dir(env, lfsck);
+ lfsck_close_dir(env, lfsck, rc);
RETURN(rc);
}
* registered LFSCK component(s)' API to perform related consistency
* verification.
*
- * It flushes related LFSCK tracing files to disk via making checkpoint
+ * It flushes related LFSCK trace files to disk via making checkpoint
* periodically. Then if the server crashed or the LFSCK is paused, the
* LFSCK can resume from the latest checkpoint.
*
if (unlikely(lfsck->li_oit_over))
RETURN(1);
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_DELAY1) &&
- cfs_fail_val > 0) {
- struct l_wait_info lwi;
-
- lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val),
- NULL, NULL);
- l_wait_event(thread->t_ctl_waitq,
- !thread_is_running(thread),
- &lwi);
+ if (CFS_FAIL_TIMEOUT(OBD_FAIL_LFSCK_DELAY1, cfs_fail_val) &&
+ unlikely(!thread_is_running(thread))) {
+ CDEBUG(D_LFSCK, "%s: OIT scan exit for engine stop, "
+ "cookie "LPU64"\n",
+ lfsck_lfsck2name(lfsck), iops->store(env, di));
- if (unlikely(!thread_is_running(thread))) {
- CDEBUG(D_LFSCK, "%s: OIT scan exit for engine "
- "stop, cookie "LPU64"\n",
- lfsck_lfsck2name(lfsck),
- iops->store(env, di));
- RETURN(0);
- }
+ RETURN(0);
}
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_CRASH))
RETURN(0);
lfsck->li_current_oit_processed = 1;
+
+ if (!list_empty(&lfsck->li_list_lmv)) {
+ struct lfsck_lmv_unit *llu;
+
+ spin_lock(&lfsck->li_lock);
+ llu = list_entry(lfsck->li_list_lmv.next,
+ struct lfsck_lmv_unit, llu_link);
+ list_del_init(&llu->llu_link);
+ spin_unlock(&lfsck->li_lock);
+
+ lfsck->li_lmv = &llu->llu_lmv;
+ lfsck->li_obj_dir = lfsck_object_get(llu->llu_obj);
+ rc = lfsck_open_dir(env, lfsck, 0);
+ if (rc == 0)
+ rc = lfsck_master_dir_engine(env, lfsck);
+
+ if (rc <= 0)
+ RETURN(rc);
+ }
+
lfsck->li_new_scanned++;
lfsck->li_pos_current.lp_oit_cookie = iops->store(env, di);
rc = iops->rec(env, di, (struct dt_rec *)fid, 0);
goto checkpoint;
}
+ if (unlikely(!fid_is_sane(fid))) {
+ CDEBUG(D_LFSCK, "%s: OIT scan find invalid FID "DFID
+ ", skip it\n",
+ lfsck_lfsck2name(lfsck), PFID(fid));
+ goto checkpoint;
+ }
+
if (fid_is_idif(fid)) {
__u32 idx1 = fid_idif_ost_idx(fid);
else
rc = 1;
+ lfsck_pos_fill(env, lfsck, &lfsck->li_pos_checkpoint, false);
CDEBUG(D_LFSCK, "LFSCK exit: oit_flags = %#x, dir_flags = %#x, "
"oit_cookie = "LPU64", dir_cookie = "LPX64", parent = "DFID
", pid = %d, rc = %d\n", lfsck->li_args_oit, lfsck->li_args_dir,
if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_CRASH))
rc = lfsck_post(env, lfsck, rc);
-
- if (lfsck->li_di_dir != NULL)
- lfsck_close_dir(env, lfsck);
+ else
+ lfsck_close_dir(env, lfsck, rc);
fini_oit:
lfsck_di_oit_put(env, lfsck);
}
/**
- * Notify the LFSCK event to the instatnces on remote servers.
+ * Notify the LFSCK event to the instances on remote servers.
*
* The LFSCK assistant thread notifies the LFSCK instances on other
* servers (MDT/OST) about some events, such as start new scanning,
if (com->lc_type != LFSCK_TYPE_LAYOUT)
goto next;
- lr->lr_valid = LSV_SPEED_LIMIT | LSV_ERROR_HANDLE | LSV_DRYRUN |
- LSV_ASYNC_WINDOWS | LSV_CREATE_OSTOBJ;
+ lr->lr_valid = LSV_SPEED_LIMIT | LSV_ERROR_HANDLE | LSV_DRYRUN;
lr->lr_speed = bk->lb_speed_limit;
lr->lr_version = bk->lb_version;
lr->lr_param |= bk->lb_param;
laia->laia_ltd = ltd;
ltd->ltd_layout_done = 0;
+ ltd->ltd_synced_failures = 0;
rc = lfsck_async_request(env, ltd->ltd_exp, lr, set,
lfsck_async_interpret_common,
laia, LFSCK_NOTIFY);
*gen = lad->lad_touch_gen;
list_move_tail(list, &lad->lad_mdt_list);
- if (ltd->ltd_namespace_failed)
+ if (ltd->ltd_synced_failures)
continue;
atomic_inc(<d->ltd_ref);
struct l_wait_info lwi = { 0 };
int rc = 0;
int rc1 = 0;
+ int rc2;
ENTRY;
CDEBUG(D_LFSCK, "%s: %s LFSCK assistant thread start\n",
com->lc_time_last_checkpoint +
cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
+ CDEBUG(D_LFSCK, "%s: LFSCK assistant sync before "
+ "the second-stage scaning\n",
+ lfsck_lfsck2name(lfsck));
+
/* Flush async updates before handling orphan. */
- dt_sync(env, lfsck->li_next);
+ rc2 = dt_sync(env, lfsck->li_next);
CDEBUG(D_LFSCK, "%s: LFSCK assistant phase2 "
- "scan start\n", lfsck_lfsck2name(lfsck));
+ "scan start, synced: rc = %d\n",
+ lfsck_lfsck2name(lfsck), rc2);
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_NO_DOUBLESCAN))
GOTO(cleanup2, rc = 0);
rc = rc1;
}
+ CDEBUG(D_LFSCK, "%s: LFSCK assistant sync before exit\n",
+ lfsck_lfsck2name(lfsck));
+
/* Flush async updates before exit. */
- dt_sync(env, lfsck->li_next);
+ rc2 = dt_sync(env, lfsck->li_next);
+
+ CDEBUG(D_LFSCK, "%s: LFSCK assistant synced before exit: rc = %d\n",
+ lfsck_lfsck2name(lfsck), rc2);
/* Under force exit case, some requests may be just freed without
* verification, those objects should be re-handled when next run.
- * So not update the on-disk tracing file under such case. */
+ * So not update the on-disk trace file under such case. */
if (lad->lad_in_double_scan) {
if (!lad->lad_exit)
rc1 = lao->la_double_scan_result(env, com, rc);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff