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LU-13124 scrub: check for multiple linked file
[fs/lustre-release.git] / lustre / lfsck / lfsck_internal.h
index 9b82ca0..e6a8a48 100644 (file)
@@ -20,7 +20,7 @@
  * GPL HEADER END
  */
 /*
- * Copyright (c) 2013, 2015, Intel Corporation.
+ * Copyright (c) 2013, 2017, Intel Corporation.
  */
 /*
  * lustre/lfsck/lfsck_internal.h
@@ -33,9 +33,6 @@
 #ifndef _LFSCK_INTERNAL_H
 # define _LFSCK_INTERNAL_H
 
-#include <lustre/lustre_lfsck_user.h>
-#include <lustre/lustre_user.h>
-#include <lustre/lustre_idl.h>
 #include <lustre_lfsck.h>
 #include <obd.h>
 #include <lu_object.h>
@@ -47,7 +44,6 @@
 #include <md_object.h>
 #include <lustre_linkea.h>
 
-#define HALF_SEC                       msecs_to_jiffies(MSEC_PER_SEC >> 1)
 #define LFSCK_CHECKPOINT_INTERVAL      60
 
 enum lfsck_flags {
@@ -111,10 +107,10 @@ struct lfsck_bookmark {
 enum lfsck_namespace_trace_flags {
        LNTF_CHECK_LINKEA       = 0x01,
        LNTF_CHECK_PARENT       = 0x02,
-       LNTF_SKIP_NLINK         = 0x04,
        LNTF_CHECK_ORPHAN       = 0x08,
        LNTF_UNCERTAIN_LMV      = 0x10,
        LNTF_RECHECK_NAME_HASH  = 0x20,
+       LNTF_CHECK_AGENT_ENTRY  = 0x40,
        LNTF_ALL                = 0xff
 };
 
@@ -142,19 +138,19 @@ struct lfsck_namespace {
        __u32   ln_success_count;
 
        /*  How long the LFSCK phase1 has run in seconds. */
-       __u32   ln_run_time_phase1;
+       time64_t ln_run_time_phase1;
 
        /*  How long the LFSCK phase2 has run in seconds. */
-       __u32   ln_run_time_phase2;
+       time64_t ln_run_time_phase2;
 
        /* Time for the last LFSCK completed in seconds since epoch. */
-       __u64   ln_time_last_complete;
+       time64_t ln_time_last_complete;
 
        /* Time for the latest LFSCK ran in seconds since epoch. */
-       __u64   ln_time_latest_start;
+       time64_t ln_time_latest_start;
 
        /* Time for the last LFSCK checkpoint in seconds since epoch. */
-       __u64   ln_time_last_checkpoint;
+       time64_t ln_time_last_checkpoint;
 
        /* Position for the latest LFSCK started from. */
        struct lfsck_position   ln_pos_latest_start;
@@ -274,9 +270,20 @@ struct lfsck_namespace {
         * the MDTs that contain non-verified MDT-objects. */
        __u32   ln_bitmap_size;
 
+       /* For further using. 256-bytes aligned now. */
        __u32   ln_reserved_1;
+
+       /* Time for the latest LFSCK scan in seconds from the beginning. */
+       time64_t ln_time_latest_reset;
+
+       /* How many linkEA overflow timestamp have been cleared. */
+       __u64   ln_linkea_overflow_cleared;
+
+       /* How many agent entries have been repaired. */
+       __u64   ln_agent_entries_repaired;
+
        /* For further using. 256-bytes aligned now. */
-       __u64   ln_reserved[15];
+       __u64   ln_reserved[11];
 };
 
 enum lfsck_layout_inconsistency_type {
@@ -304,19 +311,19 @@ struct lfsck_layout {
        __u32   ll_success_count;
 
        /*  How long the LFSCK phase1 has run in seconds. */
-       __u32   ll_run_time_phase1;
+       time64_t ll_run_time_phase1;
 
        /*  How long the LFSCK phase2 has run in seconds. */
-       __u32   ll_run_time_phase2;
+       time64_t ll_run_time_phase2;
 
        /* Time for the last LFSCK completed in seconds since epoch. */
-       __u64   ll_time_last_complete;
+       time64_t ll_time_last_complete;
 
        /* Time for the latest LFSCK ran in seconds since epoch. */
-       __u64   ll_time_latest_start;
+       time64_t ll_time_latest_start;
 
        /* Time for the last LFSCK checkpoint in seconds since epoch. */
-       __u64   ll_time_last_checkpoint;
+       time64_t ll_time_last_checkpoint;
 
        /* Position for the latest LFSCK started from. */
        __u64   ll_pos_latest_start;
@@ -353,7 +360,12 @@ struct lfsck_layout {
 
        /* For further using. 256-bytes aligned now. */
        __u32   ll_reserved_1;
-       __u64   ll_reserved_2[11];
+
+       /* The latest object has been processed (failed) during double scan. */
+       struct lfsck_layout_dangling_key ll_lldk_latest_scanned_phase2;
+
+       /* For further using */
+       u64     ll_reserved_2[7];
 
        /* The OST targets bitmap to record the OSTs that contain
         * non-verified OST-objects. */
@@ -424,10 +436,14 @@ struct lfsck_operations {
        void (*lfsck_quit)(const struct lu_env *env,
                           struct lfsck_component *com);
 
+       int (*lfsck_in_notify_local)(const struct lu_env *env,
+                                    struct lfsck_component *com,
+                                    struct lfsck_req_local *lrl,
+                                    struct thandle *th);
+
        int (*lfsck_in_notify)(const struct lu_env *env,
                               struct lfsck_component *com,
-                              struct lfsck_request *lr,
-                              struct thandle *th);
+                              struct lfsck_request *lr);
 
        int (*lfsck_query)(const struct lu_env *env,
                           struct lfsck_component *com,
@@ -440,9 +456,6 @@ struct lfsck_operations {
                          struct lfsck_start_param *lsp);
 };
 
-#define TGT_PTRS               256     /* number of pointers at 1st level */
-#define TGT_PTRS_PER_BLOCK     256     /* number of pointers at 2nd level */
-
 struct lfsck_tgt_desc {
        struct list_head   ltd_orphan_list;
        struct dt_device  *ltd_tgt;
@@ -461,6 +474,7 @@ struct lfsck_tgt_desc {
        __u32              ltd_layout_gen;
        __u32              ltd_namespace_gen;
        unsigned int       ltd_dead:1,
+                          ltd_retry_start:1,
                           ltd_layout_done:1,
                           ltd_namespace_done:1,
                           ltd_synced_failures:1;
@@ -538,17 +552,17 @@ struct lfsck_component {
        struct lfsck_instance   *lc_lfsck;
        struct dt_object        *lc_obj;
        struct lfsck_sub_trace_obj lc_sub_trace_objs[LFSCK_STF_COUNT];
-       struct lfsck_operations *lc_ops;
+       const struct lfsck_operations *lc_ops;
        void                    *lc_file_ram;
        void                    *lc_file_disk;
        void                    *lc_data;
        struct lu_fid            lc_fid_latest_scanned_phase2;
 
-       /* The time for last checkpoint, jiffies */
-       cfs_time_t               lc_time_last_checkpoint;
+       /* The time for last checkpoint, seconds */
+       time64_t                 lc_time_last_checkpoint;
 
-       /* The time for next checkpoint, jiffies */
-       cfs_time_t               lc_time_next_checkpoint;
+       /* The time for next checkpoint, seconds */
+       time64_t                 lc_time_next_checkpoint;
 
        __u32                    lc_file_size;
 
@@ -604,7 +618,8 @@ struct lfsck_lmv {
                                         ll_lmv_updated:1,
                                         ll_inline:1,
                                         ll_failed:1,
-                                        ll_ignore:1;
+                                        ll_ignore:1,
+                                        ll_counted:1;
        struct lfsck_slave_lmv_rec      *ll_lslr; /* may be vmalloc'd */
 };
 
@@ -657,12 +672,13 @@ struct lfsck_instance {
        atomic_t                  li_ref;
        atomic_t                  li_double_scan_count;
        struct ptlrpc_thread      li_thread;
+       struct task_struct       *li_task;
 
-       /* The time for last checkpoint, jiffies */
-       cfs_time_t                li_time_last_checkpoint;
+       /* The time for last checkpoint, seconds */
+       time64_t                  li_time_last_checkpoint;
 
-       /* The time for next checkpoint, jiffies */
-       cfs_time_t                li_time_next_checkpoint;
+       /* The time for next checkpoint, seconds */
+       time64_t                  li_time_next_checkpoint;
 
        lfsck_out_notify          li_out_notify;
        void                     *li_out_notify_data;
@@ -731,10 +747,16 @@ struct lfsck_instance {
                                  li_drop_dryrun:1, /* Ever dryrun, not now. */
                                  li_master:1, /* Master instance or not. */
                                  li_current_oit_processed:1,
-                                 li_start_unplug:1;
+                                 li_start_unplug:1,
+                                 li_stopping:1;
        struct lfsck_rec_lmv_save li_rec_lmv_save[LFSCK_REC_LMV_MAX_DEPTH];
 };
 
+static inline bool lfsck_is_dryrun(struct lfsck_instance *lfsck)
+{
+       return lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN;
+}
+
 struct lfsck_async_interpret_args {
        struct lfsck_component          *laia_com;
        struct lfsck_tgt_descs          *laia_ltds;
@@ -772,6 +794,7 @@ struct lfsck_namespace_req {
 struct lfsck_layout_req {
        struct lfsck_assistant_req       llr_lar;
        struct dt_object                *llr_child;
+       __u32                            llr_comp_id;
        __u32                            llr_ost_idx;
        __u32                            llr_lov_idx; /* offset in LOV EA */
 };
@@ -826,7 +849,7 @@ struct lfsck_assistant_data {
        struct ptlrpc_thread                     lad_thread;
        struct task_struct                      *lad_task;
 
-       struct lfsck_assistant_operations       *lad_ops;
+       const struct lfsck_assistant_operations *lad_ops;
 
        struct cfs_bitmap                               *lad_bitmap;
 
@@ -834,13 +857,16 @@ struct lfsck_assistant_data {
        int                                      lad_prefetched;
        int                                      lad_assistant_status;
        int                                      lad_post_result;
-       unsigned int                             lad_to_post:1,
-                                                lad_to_double_scan:1,
-                                                lad_in_double_scan:1,
-                                                lad_exit:1,
-                                                lad_incomplete:1;
+       unsigned long                            lad_flags;
        bool                                     lad_advance_lock;
 };
+enum {
+       LAD_TO_POST = 0,
+       LAD_TO_DOUBLE_SCAN = 1,
+       LAD_IN_DOUBLE_SCAN = 2,
+       LAD_EXIT = 3,
+       LAD_INCOMPLETE = 4,
+};
 
 #define LFSCK_TMPBUF_LEN       64
 
@@ -862,14 +888,11 @@ struct lfsck_thread_info {
        struct lu_fid           lti_fid;
        struct lu_fid           lti_fid2;
        struct lu_fid           lti_fid3;
+       struct lu_fid           lti_fid4;
        struct lu_attr          lti_la;
        struct lu_attr          lti_la2;
        struct ost_id           lti_oi;
-       union {
-               struct lustre_mdt_attrs lti_lma;
-               /* old LMA for compatibility */
-               char                    lti_lma_old[LMA_OLD_SIZE];
-       };
+       struct lustre_ost_attrs lti_loa;
        struct dt_object_format lti_dof;
        /* There will be '\0' at the end of the name. */
        char            lti_key[sizeof(struct lu_dirent) + NAME_MAX + 1];
@@ -883,12 +906,9 @@ struct lfsck_thread_info {
        union ldlm_policy_data  lti_policy;
        struct ldlm_enqueue_info lti_einfo;
        struct ldlm_res_id      lti_resid;
-       union {
-               struct filter_fid_old   lti_old_pfid;
-               struct filter_fid       lti_new_pfid;
-       };
+       struct filter_fid       lti_ff;
        struct dt_allocation_hint lti_hint;
-       struct lu_orphan_rec    lti_rec;
+       struct lu_orphan_rec_v3 lti_rec;
        struct lov_user_md      lti_lum;
        struct dt_insert_rec    lti_dt_rec;
        struct lu_object_conf   lti_conf;
@@ -898,6 +918,7 @@ struct lfsck_thread_info {
        struct lmv_mds_md_v1    lti_lmv3;
        struct lmv_mds_md_v1    lti_lmv4;
        struct lfsck_lock_handle lti_llh;
+       struct lfsck_layout_dangling_key lti_lldk;
 };
 
 /* lfsck_lib.c */
@@ -907,6 +928,10 @@ int lfsck_ibits_lock(const struct lu_env *env, struct lfsck_instance *lfsck,
                     struct dt_object *obj, struct lustre_handle *lh,
                     __u64 bits, enum ldlm_mode mode);
 void lfsck_ibits_unlock(struct lustre_handle *lh, enum ldlm_mode mode);
+int lfsck_remote_lookup_lock(const struct lu_env *env,
+                            struct lfsck_instance *lfsck,
+                            struct dt_object *pobj, struct dt_object *obj,
+                            struct lustre_handle *lh, enum ldlm_mode mode);
 int lfsck_lock(const struct lu_env *env, struct lfsck_instance *lfsck,
               struct dt_object *obj, const char *name,
               struct lfsck_lock_handle *llh, __u64 bits, enum ldlm_mode mode);
@@ -923,9 +948,9 @@ void lfsck_component_cleanup(const struct lu_env *env,
                             struct lfsck_component *com);
 void lfsck_instance_cleanup(const struct lu_env *env,
                            struct lfsck_instance *lfsck);
-void lfsck_bits_dump(struct seq_file *m, int bits, const char *names[],
+void lfsck_bits_dump(struct seq_file *m, int bits, const char *const names[],
                     const char *prefix);
-void lfsck_time_dump(struct seq_file *m, __u64 time, const char *name);
+void lfsck_time_dump(struct seq_file *m, time64_t time, const char *name);
 void lfsck_pos_dump(struct seq_file *m, struct lfsck_position *pos,
                    const char *prefix);
 void lfsck_pos_fill(const struct lu_env *env, struct lfsck_instance *lfsck,
@@ -935,7 +960,7 @@ void lfsck_control_speed(struct lfsck_instance *lfsck);
 void lfsck_control_speed_by_self(struct lfsck_component *com);
 void lfsck_thread_args_fini(struct lfsck_thread_args *lta);
 struct lfsck_assistant_data *
-lfsck_assistant_data_init(struct lfsck_assistant_operations *lao,
+lfsck_assistant_data_init(const struct lfsck_assistant_operations *lao,
                          const char *name);
 struct lfsck_assistant_object *
 lfsck_assistant_object_init(const struct lu_env *env, const struct lu_fid *fid,
@@ -964,6 +989,16 @@ int lfsck_double_scan_generic(const struct lu_env *env,
                              struct lfsck_component *com, int status);
 void lfsck_quit_generic(const struct lu_env *env,
                        struct lfsck_component *com);
+int lfsck_load_one_trace_file(const struct lu_env *env,
+                             struct lfsck_component *com,
+                             struct dt_object *parent,
+                             struct dt_object **child,
+                             const struct dt_index_features *ft,
+                             const char *name, bool reset);
+int lfsck_load_sub_trace_files(const struct lu_env *env,
+                              struct lfsck_component *com,
+                              const struct dt_index_features *ft,
+                              const char *prefix, bool reset);
 
 /* lfsck_engine.c */
 int lfsck_unpack_ent(struct lu_dirent *ent, __u64 *cookie, __u16 *type);
@@ -993,7 +1028,7 @@ int lfsck_namespace_check_exist(const struct lu_env *env,
                                struct dt_object *dir,
                                struct dt_object *obj, const char *name);
 int __lfsck_links_read(const struct lu_env *env, struct dt_object *obj,
-                      struct linkea_data *ldata);
+                      struct linkea_data *ldata, bool with_rec);
 int lfsck_namespace_rebuild_linkea(const struct lu_env *env,
                                   struct lfsck_component *com,
                                   struct dt_object *obj,
@@ -1009,8 +1044,9 @@ int lfsck_namespace_repair_dirent(const struct lu_env *env,
                                  struct dt_object *child,
                                  const char *name, const char *name2,
                                  __u16 type, bool update, bool dec);
-int lfsck_verify_linkea(const struct lu_env *env, struct dt_object *obj,
-                       const struct lu_name *cname, const struct lu_fid *pfid);
+int lfsck_verify_linkea(const struct lu_env *env, struct lfsck_instance *lfsck,
+                       struct dt_object *obj, const struct lu_name *cname,
+                       const struct lu_fid *pfid);
 int lfsck_links_get_first(const struct lu_env *env, struct dt_object *obj,
                          char *name, struct lu_fid *pfid);
 int lfsck_update_name_entry(const struct lu_env *env,
@@ -1022,7 +1058,9 @@ int lfsck_namespace_setup(const struct lu_env *env,
 
 /* lfsck_striped_dir.c */
 void lfsck_lmv_put(const struct lu_env *env, struct lfsck_lmv *llmv);
-int lfsck_read_stripe_lmv(const struct lu_env *env, struct dt_object *obj,
+int lfsck_read_stripe_lmv(const struct lu_env *env,
+                         struct lfsck_instance *lfsck,
+                         struct dt_object *obj,
                          struct lmv_mds_md_v1 *lmv);
 int lfsck_shard_name_to_index(const struct lu_env *env, const char *name,
                              int namelen, __u16 type,
@@ -1031,6 +1069,7 @@ bool lfsck_is_valid_slave_name_entry(const struct lu_env *env,
                                     struct lfsck_lmv *llmv,
                                     const char *name, int namelen);
 int lfsck_namespace_check_name(const struct lu_env *env,
+                              struct lfsck_instance *lfsck,
                               struct dt_object *parent,
                               struct dt_object *child,
                               const struct lu_name *cname);
@@ -1065,19 +1104,14 @@ int lfsck_layout_setup(const struct lu_env *env, struct lfsck_instance *lfsck);
 
 extern const char dot[];
 extern const char dotdot[];
-extern const char *lfsck_flags_names[];
-extern const char *lfsck_param_names[];
+extern const char *const lfsck_flags_names[];
+extern const char *const lfsck_param_names[];
 extern struct lu_context_key lfsck_thread_key;
 
-static inline bool name_is_dot_or_dotdot(const char *name, int namelen)
-{
-       return name[0] == '.' &&
-              (namelen == 1 || (namelen == 2 && name[1] == '.'));
-}
-
 static inline struct dt_device *lfsck_obj2dev(struct dt_object *obj)
 {
-       return container_of0(obj->do_lu.lo_dev, struct dt_device, dd_lu_dev);
+       return container_of_safe(obj->do_lu.lo_dev, struct dt_device,
+                                dd_lu_dev);
 }
 
 static inline struct lfsck_thread_info *
@@ -1205,9 +1239,7 @@ static inline umode_t lfsck_object_type(const struct dt_object *obj)
 
 static inline int lfsck_is_dead_obj(const struct dt_object *obj)
 {
-       struct lu_object_header *loh = obj->do_lu.lo_header;
-
-       return !!test_bit(LU_OBJECT_HEARD_BANSHEE, &loh->loh_flags);
+       return lu_object_is_dying(obj->do_lu.lo_header);
 }
 
 static inline struct dt_object *lfsck_object_get(struct dt_object *obj)
@@ -1219,7 +1251,7 @@ static inline struct dt_object *lfsck_object_get(struct dt_object *obj)
 static inline void lfsck_object_put(const struct lu_env *env,
                                    struct dt_object *obj)
 {
-       lu_object_put(env, &obj->do_lu);
+       dt_object_put(env, obj);
 }
 
 static inline struct seq_server_site
@@ -1244,16 +1276,6 @@ lfsck_object_find_by_dev_new(const struct lu_env *env, struct dt_device *dev,
 }
 
 static inline struct dt_object *
-lfsck_object_find_by_dev_nowait(const struct lu_env *env, struct dt_device *dev,
-                               const struct lu_fid *fid)
-{
-       struct lu_object_conf   *conf = &lfsck_env_info(env)->lti_conf;
-
-       conf->loc_flags = LOC_F_NOWAIT;
-       return lu2dt(lu_object_find_slice(env, dt2lu_dev(dev), fid, conf));
-}
-
-static inline struct dt_object *
 lfsck_object_find_by_dev(const struct lu_env *env, struct dt_device *dev,
                         const struct lu_fid *fid)
 {
@@ -1303,20 +1325,6 @@ lfsck_object_find_bottom(const struct lu_env *env, struct lfsck_instance *lfsck,
 }
 
 static inline struct dt_object *
-lfsck_object_find_bottom_nowait(const struct lu_env *env,
-                               struct lfsck_instance *lfsck,
-                               const struct lu_fid *fid)
-{
-       struct dt_device *dev;
-
-       dev = lfsck_find_dev_by_fid(env, lfsck, fid);
-       if (IS_ERR(dev))
-               return (struct dt_object *)dev;
-
-       return lfsck_object_find_by_dev_nowait(env, dev, fid);
-}
-
-static inline struct dt_object *
 lfsck_object_find_bottom_new(const struct lu_env *env,
                             struct lfsck_instance *lfsck,
                             const struct lu_fid *fid)
@@ -1436,12 +1444,16 @@ static inline void lfsck_lad_set_bitmap(const struct lu_env *env,
 
        if (likely(bitmap->size > index)) {
                cfs_bitmap_set(bitmap, index);
-               lad->lad_incomplete = 1;
+               set_bit(LAD_INCOMPLETE, &lad->lad_flags);
        } else if (com->lc_type == LFSCK_TYPE_NAMESPACE) {
                struct lfsck_namespace *ns = com->lc_file_ram;
 
                ns->ln_flags |= LF_INCOMPLETE;
        }
+
+       CDEBUG(D_LFSCK, "%s: %s LFSCK set bitmap (%p/%u) for idx %u\n",
+              lfsck_lfsck2name(com->lc_lfsck), lad->lad_name, bitmap,
+              bitmap->size, index);
 }
 
 static inline int lfsck_links_read(const struct lu_env *env,
@@ -1450,20 +1462,33 @@ static inline int lfsck_links_read(const struct lu_env *env,
 {
        ldata->ld_buf =
                lu_buf_check_and_alloc(&lfsck_env_info(env)->lti_linkea_buf,
-                                      PAGE_SIZE);
+                                      MAX_LINKEA_SIZE);
+
+       return __lfsck_links_read(env, obj, ldata, false);
+}
+
+/* Read linkEA for the given object, the linkEA should contain
+ * at least one entry, otherwise, -ENODATA will be returned. */
+static inline int lfsck_links_read_with_rec(const struct lu_env *env,
+                                           struct dt_object *obj,
+                                           struct linkea_data *ldata)
+{
+       ldata->ld_buf =
+               lu_buf_check_and_alloc(&lfsck_env_info(env)->lti_linkea_buf,
+                                      MAX_LINKEA_SIZE);
 
-       return __lfsck_links_read(env, obj, ldata);
+       return __lfsck_links_read(env, obj, ldata, true);
 }
 
-static inline int lfsck_links_read2(const struct lu_env *env,
-                                   struct dt_object *obj,
-                                   struct linkea_data *ldata)
+static inline int lfsck_links_read2_with_rec(const struct lu_env *env,
+                                            struct dt_object *obj,
+                                            struct linkea_data *ldata)
 {
        ldata->ld_buf =
                lu_buf_check_and_alloc(&lfsck_env_info(env)->lti_linkea_buf2,
-                                      PAGE_SIZE);
+                                      MAX_LINKEA_SIZE);
 
-       return __lfsck_links_read(env, obj, ldata);
+       return __lfsck_links_read(env, obj, ldata, true);
 }
 
 static inline struct lfsck_lmv *lfsck_lmv_get(struct lfsck_lmv *llmv)
@@ -1487,6 +1512,8 @@ static inline void lfsck_lmv_header_le_to_cpu(struct lmv_mds_md_v1 *dst,
        dst->lmv_master_mdt_index = le32_to_cpu(src->lmv_master_mdt_index);
        dst->lmv_hash_type = le32_to_cpu(src->lmv_hash_type);
        dst->lmv_layout_version = le32_to_cpu(src->lmv_layout_version);
+       dst->lmv_migrate_offset = le32_to_cpu(src->lmv_migrate_offset);
+       dst->lmv_migrate_hash = le32_to_cpu(src->lmv_migrate_hash);
 }
 
 static inline void lfsck_lmv_header_cpu_to_le(struct lmv_mds_md_v1 *dst,
@@ -1497,6 +1524,8 @@ static inline void lfsck_lmv_header_cpu_to_le(struct lmv_mds_md_v1 *dst,
        dst->lmv_master_mdt_index = cpu_to_le32(src->lmv_master_mdt_index);
        dst->lmv_hash_type = cpu_to_le32(src->lmv_hash_type);
        dst->lmv_layout_version = cpu_to_le32(src->lmv_layout_version);
+       dst->lmv_migrate_offset = cpu_to_le32(src->lmv_migrate_offset);
+       dst->lmv_migrate_hash = cpu_to_le32(src->lmv_migrate_hash);
 }
 
 static inline struct lfsck_assistant_object *
@@ -1514,4 +1543,19 @@ lfsck_assistant_object_put(const struct lu_env *env,
        if (atomic_dec_and_test(&lso->lso_ref))
                OBD_FREE_PTR(lso);
 }
+
+static inline struct thandle*
+lfsck_trans_create(const struct lu_env *env, struct dt_device *dev,
+                  struct lfsck_instance *lfsck)
+{
+       if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN) {
+               CERROR("%s: transaction is being created in DRYRUN mode!\n",
+                      lfsck_lfsck2name(lfsck));
+
+               dump_stack();
+               return ERR_PTR(-EINVAL);
+       }
+
+       return dt_trans_create(env, dev);
+}
 #endif /* _LFSCK_INTERNAL_H */