X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Flfsck%2Flfsck_internal.h;h=dd89553d53d43f91f03f52b7bc5892c257ab0540;hp=f3694a72e5fd2c433a1091237fd5942a50258a92;hb=048a8740ae26e3406a7eab3bca383a90490cef93;hpb=2dc1bb8b7a53077fce8632aabe65b2ce8048a550 diff --git a/lustre/lfsck/lfsck_internal.h b/lustre/lfsck/lfsck_internal.h index f3694a7..dd89553 100644 --- a/lustre/lfsck/lfsck_internal.h +++ b/lustre/lfsck/lfsck_internal.h @@ -20,7 +20,7 @@ * GPL HEADER END */ /* - * Copyright (c) 2013, Intel Corporation. + * Copyright (c) 2013, 2016, Intel Corporation. */ /* * lustre/lfsck/lfsck_internal.h @@ -36,58 +36,36 @@ #include #include #include +#include #include #include #include +#include #include #include #include +#include +#include -#define HALF_SEC (HZ >> 1) +#define HALF_SEC msecs_to_jiffies(MSEC_PER_SEC >> 1) #define LFSCK_CHECKPOINT_INTERVAL 60 -#define LFSCK_NAMEENTRY_DEAD 1 /* The object has been unlinked. */ -#define LFSCK_NAMEENTRY_REMOVED 2 /* The entry has been removed. */ -#define LFSCK_NAMEENTRY_RECREATED 3 /* The entry has been recreated. */ - -enum lfsck_status { - /* The lfsck file is new created, for new MDT, upgrading from old disk, - * or re-creating the lfsck file manually. */ - LS_INIT = 0, - - /* The first-step system scanning. */ - LS_SCANNING_PHASE1 = 1, - - /* The second-step system scanning. */ - LS_SCANNING_PHASE2 = 2, - - /* The LFSCK processing has completed for all objects. */ - LS_COMPLETED = 3, - - /* The LFSCK exited automatically for failure, will not auto restart. */ - LS_FAILED = 4, - - /* The LFSCK is stopped manually, will not auto restart. */ - LS_STOPPED = 5, - - /* LFSCK is paused automatically when umount, - * will be restarted automatically when remount. */ - LS_PAUSED = 6, - - /* System crashed during the LFSCK, - * will be restarted automatically after recovery. */ - LS_CRASHED = 7, -}; - enum lfsck_flags { /* Finish the first cycle scanning. */ - LF_SCANNED_ONCE = 0x00000001ULL, + LF_SCANNED_ONCE = 0x00000001ULL, /* There is some namespace inconsistency. */ - LF_INCONSISTENT = 0x00000002ULL, + LF_INCONSISTENT = 0x00000002ULL, /* The device is upgraded from 1.8 format. */ - LF_UPGRADE = 0x00000004ULL, + LF_UPGRADE = 0x00000004ULL, + + /* The server ever restarted during the LFSCK, and may miss to process + * some objects check/repair. */ + LF_INCOMPLETE = 0x00000008ULL, + + /* The LAST_ID (file) crashed. */ + LF_CRASHED_LASTID = 0x00000010ULL, }; struct lfsck_position { @@ -114,11 +92,39 @@ struct lfsck_bookmark { /* How many items can be scanned at most per second. */ __u32 lb_speed_limit; + /* The windows size for async requests pipeline. */ + __u16 lb_async_windows; + /* For 64-bits aligned. */ - __u32 lb_padding; + __u16 lb_padding; + + /* The FID for .lustre/lost+found/MDTxxxx */ + struct lu_fid lb_lpf_fid; + + /* The FID for the last MDT-object created by the LFSCK repairing. */ + struct lu_fid lb_last_fid; /* For future using. */ - __u64 lb_reserved[6]; + __u64 lb_reserved[2]; +}; + +enum lfsck_namespace_trace_flags { + LNTF_CHECK_LINKEA = 0x01, + LNTF_CHECK_PARENT = 0x02, + LNTF_CHECK_ORPHAN = 0x08, + LNTF_UNCERTAIN_LMV = 0x10, + LNTF_RECHECK_NAME_HASH = 0x20, + LNTF_ALL = 0xff +}; + +enum lfsck_namespace_inconsistency_type { + LNIT_NONE = 0, + LNIT_BAD_LINKEA = 1, + LNIT_UNMATCHED_PAIRS = 2, + LNIT_DANGLING = 3, + LNIT_MUL_REF = 4, + LNIT_BAD_TYPE = 5, + LNIT_BAD_DIRENT = 6, }; struct lfsck_namespace { @@ -170,9 +176,6 @@ struct lfsck_namespace { /* How many directories have been traversed. */ __u64 ln_dirs_checked; - /* How many multiple-linked objects have been checked. */ - __u64 ln_mlinked_checked; - /* How many objects have been double scanned. */ __u64 ln_objs_checked_phase2; @@ -185,17 +188,194 @@ struct lfsck_namespace { /* How many objects with nlink fixed. */ __u64 ln_objs_nlink_repaired; - /* How many objects were lost before, but found back now. */ - __u64 ln_objs_lost_found; - /* The latest object has been processed (failed) during double scan. */ struct lu_fid ln_fid_latest_scanned_phase2; + /* How many FID-in-dirent entries have been repaired. */ + __u64 ln_dirent_repaired; + + /* How many linkEA entries have been repaired. */ + __u64 ln_linkea_repaired; + + /* How many multiple-linked objects have been checked. */ + __u64 ln_mul_linked_checked; + + /* How many multiple-linked objects have been repaired. */ + __u64 ln_mul_linked_repaired; + + /* How many undefined inconsistency found in phase2. */ + __u64 ln_unknown_inconsistency; + + /* How many unmatched pairs have been repaired. */ + __u64 ln_unmatched_pairs_repaired; + + /* How many dangling name entries have been found/repaired. */ + __u64 ln_dangling_repaired; + + /* How many multiple referenced name entries have been + * found/repaired. */ + __u64 ln_mul_ref_repaired; + + /* How many name entries with bad file type have been repaired. */ + __u64 ln_bad_type_repaired; + + /* How many lost name entries have been re-inserted. */ + __u64 ln_lost_dirent_repaired; + + /* How many objects under /lost+found have been scanned. */ + __u64 ln_local_lpf_scanned; + + /* How many objects under /lost+found have been moved to + * namespace visible directory. */ + __u64 ln_local_lpf_moved; + + /* How many objects under /lost+found have been skipped. */ + __u64 ln_local_lpf_skipped; + + /* How many objects under /lost+found failed to be processed. */ + __u64 ln_local_lpf_failed; + + /* How many striped directories (master) have been scanned. */ + __u64 ln_striped_dirs_scanned; + + /* How many striped directories (master) have been repaired. */ + __u64 ln_striped_dirs_repaired; + + /* How many striped directories (master) failed verification. */ + __u64 ln_striped_dirs_failed; + + /* How many striped directories (master) has been disabled. */ + __u64 ln_striped_dirs_disabled; + + /* How many striped directory's (master) have been skipped + * (for shards verification) because of lost master LMV EA. */ + __u64 ln_striped_dirs_skipped; + + /* How many striped directory's shards (slave) have been scanned. */ + __u64 ln_striped_shards_scanned; + + /* How many striped directory's shards (slave) have been repaired. */ + __u64 ln_striped_shards_repaired; + + /* How many striped directory's shards (slave) failed verification. */ + __u64 ln_striped_shards_failed; + + /* How many striped directory's shards (slave) have been skipped + * (for name hash verification) because do not know whether the slave + * LMV EA is valid or not. */ + __u64 ln_striped_shards_skipped; + + /* How many name entries under striped directory with bad name + * hash have been repaired. */ + __u64 ln_name_hash_repaired; + + /* The size of MDT targets bitmap with nbits. Such bitmap records + * the MDTs that contain non-verified MDT-objects. */ + __u32 ln_bitmap_size; + + /* Time for the latest LFSCK scan in seconds from the beginning. */ + __u32 ln_time_latest_reset; + + /* How many linkEA overflow timestamp have been cleared. */ + __u64 ln_linkea_overflow_cleared; + /* For further using. 256-bytes aligned now. */ - __u64 ln_reserved[2]; + __u64 ln_reserved[14]; +}; + +enum lfsck_layout_inconsistency_type { + LLIT_NONE = 0, + LLIT_DANGLING = 1, + LLIT_UNMATCHED_PAIR = 2, + LLIT_MULTIPLE_REFERENCED = 3, + LLIT_ORPHAN = 4, + LLIT_INCONSISTENT_OWNER = 5, + LLIT_OTHERS = 6, + LLIT_MAX = LLIT_OTHERS +}; + +struct lfsck_layout { + /* Magic number to detect that this struct contains valid data. */ + __u32 ll_magic; + + /* See 'enum lfsck_status'. */ + __u32 ll_status; + + /* See 'enum lfsck_flags'. */ + __u32 ll_flags; + + /* How many completed LFSCK runs on the device. */ + __u32 ll_success_count; + + /* How long the LFSCK phase1 has run in seconds. */ + __u32 ll_run_time_phase1; + + /* How long the LFSCK phase2 has run in seconds. */ + __u32 ll_run_time_phase2; + + /* Time for the last LFSCK completed in seconds since epoch. */ + __u64 ll_time_last_complete; + + /* Time for the latest LFSCK ran in seconds since epoch. */ + __u64 ll_time_latest_start; + + /* Time for the last LFSCK checkpoint in seconds since epoch. */ + __u64 ll_time_last_checkpoint; + + /* Position for the latest LFSCK started from. */ + __u64 ll_pos_latest_start; + + /* Position for the last LFSCK checkpoint. */ + __u64 ll_pos_last_checkpoint; + + /* Position for the first object to be fixed or + * failed to be checked in the phase1. */ + __u64 ll_pos_first_inconsistent; + + /* How many objects have been checked. */ + __u64 ll_objs_checked_phase1; + + /* How many objects failed to be processed. */ + __u64 ll_objs_failed_phase1; + + /* How many objects have been double scanned. */ + __u64 ll_objs_checked_phase2; + + /* How many objects failed to be processed during double scan. */ + __u64 ll_objs_failed_phase2; + + /* kinds of inconsistency have been or to be repaired. + * ll_objs_repaired[type - 1] is the count for the given @type. */ + __u64 ll_objs_repaired[LLIT_MAX]; + + /* How many objects have been skipped because of related + * MDT(s)/OST(s) do not participate in the LFSCK */ + __u64 ll_objs_skipped; + + /* The size of ll_ost_bitmap with nbits. */ + __u32 ll_bitmap_size; + + /* For further using. 256-bytes aligned now. */ + __u32 ll_reserved_1; + __u64 ll_reserved_2[11]; + + /* The OST targets bitmap to record the OSTs that contain + * non-verified OST-objects. */ + __u8 ll_ost_bitmap[0]; +}; + +struct lfsck_assistant_object { + struct lu_fid lso_fid; + __u64 lso_oit_cookie; + struct lu_attr lso_attr; + atomic_t lso_ref; + unsigned int lso_dead:1, + lso_is_dir:1; }; struct lfsck_component; +struct lfsck_tgt_descs; +struct lfsck_tgt_desc; struct lfsck_operations { int (*lfsck_reset)(const struct lu_env *env, @@ -206,12 +386,19 @@ struct lfsck_operations { struct lfsck_component *com, bool new_checked); + void (*lfsck_close_dir)(const struct lu_env *env, + struct lfsck_component *com); + + int (*lfsck_open_dir)(const struct lu_env *env, + struct lfsck_component *com); + int (*lfsck_checkpoint)(const struct lu_env *env, struct lfsck_component *com, bool init); int (*lfsck_prep)(const struct lu_env *env, - struct lfsck_component *com); + struct lfsck_component *com, + struct lfsck_start_param *lsp); int (*lfsck_exec_oit)(const struct lu_env *env, struct lfsck_component *com, @@ -219,68 +406,260 @@ struct lfsck_operations { int (*lfsck_exec_dir)(const struct lu_env *env, struct lfsck_component *com, - struct dt_object *obj, - struct lu_dirent *ent); + struct lfsck_assistant_object *lso, + struct lu_dirent *ent, + __u16 type); int (*lfsck_post)(const struct lu_env *env, struct lfsck_component *com, int result, bool init); - int (*lfsck_dump)(const struct lu_env *env, - struct lfsck_component *com, - char *buf, - int len); + void (*lfsck_dump)(const struct lu_env *env, + struct lfsck_component *com, + struct seq_file *m); int (*lfsck_double_scan)(const struct lu_env *env, struct lfsck_component *com); + + void (*lfsck_data_release)(const struct lu_env *env, + struct lfsck_component *com); + + void (*lfsck_quit)(const struct lu_env *env, + struct lfsck_component *com); + + int (*lfsck_in_notify)(const struct lu_env *env, + struct lfsck_component *com, + struct lfsck_request *lr, + struct thandle *th); + + int (*lfsck_query)(const struct lu_env *env, + struct lfsck_component *com, + struct lfsck_request *req, + struct lfsck_reply *rep, + struct lfsck_query *que, int idx); + + int (*lfsck_join)(const struct lu_env *env, + struct lfsck_component *com, + 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; + struct dt_device *ltd_key; + struct obd_export *ltd_exp; + struct list_head ltd_layout_list; + struct list_head ltd_layout_phase_list; + struct list_head ltd_namespace_list; + struct list_head ltd_namespace_phase_list; + __u32 ltd_layout_status; + __u32 ltd_namespace_status; + __u64 ltd_layout_repaired; + __u64 ltd_namespace_repaired; + atomic_t ltd_ref; + __u32 ltd_index; + __u32 ltd_layout_gen; + __u32 ltd_namespace_gen; + unsigned int ltd_dead:1, + ltd_layout_done:1, + ltd_namespace_done:1, + ltd_synced_failures:1; +}; + +struct lfsck_tgt_desc_idx { + struct lfsck_tgt_desc *ldi_tgts[TGT_PTRS_PER_BLOCK]; +}; + +struct lfsck_tgt_descs { + /* list of known TGTs */ + struct lfsck_tgt_desc_idx *ltd_tgts_idx[TGT_PTRS]; + + /* bitmap of TGTs available */ + struct cfs_bitmap *ltd_tgts_bitmap; + + /* for lfsck_tgt_desc::ltd_xxx_list */ + spinlock_t ltd_lock; + + /* for tgts table accessing and changes */ + struct rw_semaphore ltd_rw_sem; + + /* Temporary list for orphan targets. */ + struct list_head ltd_orphan; + + /* number of registered TGTs */ + __u32 ltd_tgtnr; +}; + +static inline struct lfsck_tgt_desc * +lfsck_ltd2tgt(struct lfsck_tgt_descs *ltd, __u32 index) +{ + __u32 idx1 = index / TGT_PTRS_PER_BLOCK; + __u32 idx2 = index % TGT_PTRS_PER_BLOCK; + struct lfsck_tgt_desc *__tgt = NULL; + + if (unlikely(idx1 >= TGT_PTRS)) + CDEBUG(D_LFSCK, "The target idx %u is invalid.\n", index); + else if (likely(ltd->ltd_tgts_idx[idx1] != NULL)) + __tgt = ltd->ltd_tgts_idx[idx1]->ldi_tgts[idx2]; + + return __tgt; +} + +static inline void lfsck_assign_tgt(struct lfsck_tgt_descs *ltd, + struct lfsck_tgt_desc *tgt, __u32 index) +{ + __u32 idx1 = index / TGT_PTRS_PER_BLOCK; + __u32 idx2 = index % TGT_PTRS_PER_BLOCK; + + if (likely(idx1 < TGT_PTRS && ltd->ltd_tgts_idx[idx1] != NULL)) + ltd->ltd_tgts_idx[idx1]->ldi_tgts[idx2] = tgt; +} + +#define LFSCK_STF_BITS 4 +/* If want to adjust the LFSCK_STF_COUNT, please change LFSCK_STF_BITS. */ +#define LFSCK_STF_COUNT (1 << LFSCK_STF_BITS) + +struct lfsck_sub_trace_obj { + struct dt_object *lsto_obj; + struct mutex lsto_mutex; }; struct lfsck_component { /* into lfsck_instance::li_list_(scan,double_scan,idle} */ - cfs_list_t lc_link; + struct list_head lc_link; /* into lfsck_instance::li_list_dir */ - cfs_list_t lc_link_dir; + struct list_head lc_link_dir; + struct rw_semaphore lc_sem; - cfs_atomic_t lc_ref; + atomic_t lc_ref; struct lfsck_position lc_pos_start; 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; 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 next checkpoint, jiffies */ + cfs_time_t lc_time_next_checkpoint; + __u32 lc_file_size; /* How many objects have been checked since last checkpoint. */ __u32 lc_new_checked; - unsigned int lc_journal:1; + + /* How many objects have been scanned since last sleep. */ + __u32 lc_new_scanned; + __u16 lc_type; }; +#define LFSCK_LMV_MAX_STRIPES LMV_MAX_STRIPE_COUNT +#define LFSCK_LMV_DEF_STRIPES 4 + +/* Warning: NOT change the lfsck_slave_lmv_flags members order, + * otherwise the lfsck_record_lmv() may be wrong. */ +enum lfsck_slave_lmv_flags { + LSLF_NONE = 0, + LSLF_BAD_INDEX2 = 1, + LSLF_NO_LMVEA = 2, + LSLF_DANGLING = 3, + LSLF_BAD_INDEX1 = 4, +}; + +/* When the namespace LFSCK scans a striped directory, it will record all + * the known shards' information in the structure "lfsck_slave_lmv_rec", + * including the shard's FID, index, slave LMV EA, and so on. Each shard + * will take one lfsck_slave_lmv_rec slot. After the 1st cycle scanning + * the striped directory, the LFSCK will get all the information about + * whether there are some inconsistency, and then it can repair them in + * the 2nd cycle scanning. */ +struct lfsck_slave_lmv_rec { + struct lu_fid lslr_fid; + __u32 lslr_stripe_count; + __u32 lslr_index; /* the index in name or in slave lmv */ + __u32 lslr_hash_type; + __u32 lslr_flags; +}; + +struct lfsck_lmv { + struct lmv_mds_md_v1 ll_lmv; + atomic_t ll_ref; + int ll_stripes_allocated; + int ll_stripes_filled; + int ll_exit_value; + __u32 ll_max_stripe_count; + __u32 ll_max_filled_off; + __u32 ll_hash_type; + unsigned int ll_lmv_master:1, + ll_lmv_slave:1, + ll_lmv_verified:1, + ll_lmv_updated:1, + ll_inline:1, + ll_failed:1, + ll_ignore:1; + struct lfsck_slave_lmv_rec *ll_lslr; /* may be vmalloc'd */ +}; + +/* If the namespace LFSCK finds that the master MDT-object of a striped + * directory lost its master LMV EA, it will re-generate the master LMV + * EA and notify the LFSCK instance on the MDT on which the striped dir + * master MDT-object resides to rescan the striped directory. To do that, + * the notify handler will insert a "lfsck_lmv_unit" structure into the + * lfsck::li_list_lmv. The LFSCK instance will scan such list from time + * to time to check whether needs to rescan some stirped directories. */ +struct lfsck_lmv_unit { + struct list_head llu_link; + struct lfsck_lmv llu_lmv; + struct dt_object *llu_obj; + struct lfsck_instance *llu_lfsck; +}; + +struct lfsck_rec_lmv_save { + struct lu_fid lrls_fid; + struct lmv_mds_md_v1 lrls_lmv; +}; + +/* Allow lfsck_record_lmv() to be called recursively at most three times. */ +#define LFSCK_REC_LMV_MAX_DEPTH 3 + struct lfsck_instance { struct mutex li_mutex; spinlock_t li_lock; /* Link into the lfsck_instance_list. */ - cfs_list_t li_link; + struct list_head li_link; /* For the components in (first) scanning via otable-based iteration. */ - cfs_list_t li_list_scan; + struct list_head li_list_scan; /* For the components in scanning via directory traversal. Because * directory traversal cannot guarantee all the object be scanned, * so the component in the li_list_dir must be in li_list_scan. */ - cfs_list_t li_list_dir; + struct list_head li_list_dir; /* For the components in double scanning. */ - cfs_list_t li_list_double_scan; + struct list_head li_list_double_scan; /* For the components those are not scanning now. */ - cfs_list_t li_list_idle; + struct list_head li_list_idle; - cfs_atomic_t li_ref; + /* For the lfsck_lmv_unit to be handled. */ + struct list_head li_list_lmv; + + atomic_t li_ref; + atomic_t li_double_scan_count; struct ptlrpc_thread li_thread; /* The time for last checkpoint, jiffies */ @@ -289,16 +668,26 @@ struct lfsck_instance { /* The time for next checkpoint, jiffies */ cfs_time_t li_time_next_checkpoint; + lfsck_out_notify li_out_notify; + void *li_out_notify_data; struct dt_device *li_next; struct dt_device *li_bottom; + struct obd_device *li_obd; struct ldlm_namespace *li_namespace; struct local_oid_storage *li_los; - struct dt_object *li_local_root; /* backend root "/" */ + struct lu_fid li_local_root_fid; /* backend root "/" */ struct lu_fid li_global_root_fid; /* /ROOT */ + struct dt_object *li_lfsck_dir; struct dt_object *li_bookmark_obj; + struct dt_object *li_lpf_obj; + struct dt_object *li_lpf_root_obj; + struct lu_client_seq *li_seq; struct lfsck_bookmark li_bookmark_ram; struct lfsck_bookmark li_bookmark_disk; struct lfsck_position li_pos_current; + struct lfsck_position li_pos_checkpoint; + + struct lfsck_lmv *li_lmv; /* Obj for otable-based iteration */ struct dt_object *li_obj_oit; @@ -312,6 +701,12 @@ struct lfsck_instance { /* It for directory traversal */ struct dt_it *li_di_dir; + /* Description of OST */ + struct lfsck_tgt_descs li_ost_descs; + + /* Description of MDT */ + struct lfsck_tgt_descs li_mdt_descs; + /* namespace-based directory traversal position. */ __u64 li_cookie_dir; @@ -330,77 +725,365 @@ struct lfsck_instance { /* How many objects have been scanned since last sleep. */ __u32 li_new_scanned; - unsigned int li_paused:1, /* The lfsck is paused. */ - li_oit_over:1, /* oit is finished. */ + /* The status when the LFSCK stopped or paused. */ + __u32 li_status; + + /* The flags when the lFSCK stopped or paused. */ + __u32 li_flags; + + unsigned int li_oit_over:1, /* oit is finished. */ li_drop_dryrun:1, /* Ever dryrun, not now. */ li_master:1, /* Master instance or not. */ - li_current_oit_processed:1; + li_current_oit_processed:1, + li_start_unplug:1; + struct lfsck_rec_lmv_save li_rec_lmv_save[LFSCK_REC_LMV_MAX_DEPTH]; }; -enum lfsck_linkea_flags { - /* The linkea entries does not match the object nlinks. */ - LLF_UNMATCH_NLINKS = 0x01, +struct lfsck_async_interpret_args { + struct lfsck_component *laia_com; + struct lfsck_tgt_descs *laia_ltds; + struct lfsck_tgt_desc *laia_ltd; + struct lfsck_request *laia_lr; + atomic_t *laia_count; + int laia_result; + unsigned int laia_shared:1; +}; + +struct lfsck_thread_args { + struct lu_env lta_env; + struct lfsck_instance *lta_lfsck; + struct lfsck_component *lta_com; + struct lfsck_start_param *lta_lsp; +}; + +struct lfsck_assistant_req { + struct list_head lar_list; + struct lfsck_assistant_object *lar_parent; +}; + +struct lfsck_namespace_req { + struct lfsck_assistant_req lnr_lar; + struct lfsck_lmv *lnr_lmv; + struct lu_fid lnr_fid; + __u64 lnr_dir_cookie; + __u32 lnr_attr; + __u32 lnr_size; + __u16 lnr_type; + __u16 lnr_namelen; + char lnr_name[0]; +}; + +struct lfsck_layout_req { + struct lfsck_assistant_req llr_lar; + struct dt_object *llr_child; + __u32 llr_ost_idx; + __u32 llr_lov_idx; /* offset in LOV EA */ +}; + +struct lfsck_assistant_operations { + int (*la_handler_p1)(const struct lu_env *env, + struct lfsck_component *com, + struct lfsck_assistant_req *lar); + + int (*la_handler_p2)(const struct lu_env *env, + struct lfsck_component *com); + + void (*la_fill_pos)(const struct lu_env *env, + struct lfsck_component *com, + struct lfsck_position *pos); + + int (*la_double_scan_result)(const struct lu_env *env, + struct lfsck_component *com, + int rc); + + void (*la_req_fini)(const struct lu_env *env, + struct lfsck_assistant_req *lar); + + void (*la_sync_failures)(const struct lu_env *env, + struct lfsck_component *com, + struct lfsck_request *lr); +}; + +struct lfsck_assistant_data { + spinlock_t lad_lock; + struct list_head lad_req_list; + + /* list for the ost targets involve LFSCK. */ + struct list_head lad_ost_list; - /* Fail to repair the multiple-linked objects during the double scan. */ - LLF_REPAIR_FAILED = 0x02, + /* list for the ost targets in phase1 scanning. */ + struct list_head lad_ost_phase1_list; + + /* list for the ost targets in phase2 scanning. */ + struct list_head lad_ost_phase2_list; + + /* list for the mdt targets involve LFSCK. */ + struct list_head lad_mdt_list; + + /* list for the mdt targets in phase1 scanning. */ + struct list_head lad_mdt_phase1_list; + + /* list for the mdt targets in phase2 scanning. */ + struct list_head lad_mdt_phase2_list; + + const char *lad_name; + struct ptlrpc_thread lad_thread; + struct task_struct *lad_task; + + struct lfsck_assistant_operations *lad_ops; + + struct cfs_bitmap *lad_bitmap; + + __u32 lad_touch_gen; + 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; + bool lad_advance_lock; +}; + +#define LFSCK_TMPBUF_LEN 64 + +struct lfsck_lock_handle { + struct lustre_handle llh_pdo_lh; + struct lustre_handle llh_reg_lh; + enum ldlm_mode llh_pdo_mode; + enum ldlm_mode llh_reg_mode; }; struct lfsck_thread_info { + struct lu_name lti_name_const; struct lu_name lti_name; + struct lu_name lti_name2; struct lu_buf lti_buf; struct lu_buf lti_linkea_buf; + struct lu_buf lti_linkea_buf2; + struct lu_buf lti_big_buf; struct lu_fid lti_fid; struct lu_fid lti_fid2; + struct lu_fid lti_fid3; struct lu_attr lti_la; - /* lti_ent and lti_key must be conjoint, - * then lti_ent::lde_name will be lti_key. */ - struct lu_dirent lti_ent; - char lti_key[NAME_MAX + 16]; + 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 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]; + char lti_tmpbuf[LFSCK_TMPBUF_LEN]; + char lti_tmpbuf2[LFSCK_TMPBUF_LEN]; + struct lfsck_request lti_lr; + struct lfsck_async_interpret_args lti_laia; + struct lfsck_async_interpret_args lti_laia2; + struct lfsck_start lti_start; + struct lfsck_stop lti_stop; + 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 dt_allocation_hint lti_hint; + struct lu_orphan_rec lti_rec; + struct lov_user_md lti_lum; + struct dt_insert_rec lti_dt_rec; + struct lu_object_conf lti_conf; + struct lu_seq_range lti_range; + struct lmv_mds_md_v1 lti_lmv; + struct lmv_mds_md_v1 lti_lmv2; + struct lmv_mds_md_v1 lti_lmv3; + struct lmv_mds_md_v1 lti_lmv4; + struct lfsck_lock_handle lti_llh; }; /* lfsck_lib.c */ +int lfsck_fid_alloc(const struct lu_env *env, struct lfsck_instance *lfsck, + struct lu_fid *fid, bool locked); +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_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); +void lfsck_unlock(struct lfsck_lock_handle *llh); +int lfsck_find_mdt_idx_by_fid(const struct lu_env *env, + struct lfsck_instance *lfsck, + const struct lu_fid *fid); +int lfsck_verify_lpf(const struct lu_env *env, struct lfsck_instance *lfsck); +struct lfsck_instance *lfsck_instance_find(struct dt_device *key, bool ref, + bool unlink); +struct lfsck_component *lfsck_component_find(struct lfsck_instance *lfsck, + __u16 type); void lfsck_component_cleanup(const struct lu_env *env, struct lfsck_component *com); -int lfsck_bits_dump(char **buf, int *len, int bits, const char *names[], +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[], + const char *prefix); +void lfsck_time_dump(struct seq_file *m, __u64 time, const char *name); +void lfsck_pos_dump(struct seq_file *m, struct lfsck_position *pos, const char *prefix); -int lfsck_time_dump(char **buf, int *len, __u64 time, const char *prefix); -int lfsck_pos_dump(char **buf, int *len, struct lfsck_position *pos, - const char *prefix); void lfsck_pos_fill(const struct lu_env *env, struct lfsck_instance *lfsck, struct lfsck_position *pos, bool init); +bool __lfsck_set_speed(struct lfsck_instance *lfsck, __u32 limit); void lfsck_control_speed(struct lfsck_instance *lfsck); -int lfsck_reset(const struct lu_env *env, struct lfsck_instance *lfsck, - bool init); -void lfsck_fail(const struct lu_env *env, struct lfsck_instance *lfsck, - bool new_checked); -int lfsck_checkpoint(const struct lu_env *env, struct lfsck_instance *lfsck); -int lfsck_prep(const struct lu_env *env, struct lfsck_instance *lfsck); -int lfsck_exec_oit(const struct lu_env *env, struct lfsck_instance *lfsck, - struct dt_object *obj); -int lfsck_exec_dir(const struct lu_env *env, struct lfsck_instance *lfsck, - struct dt_object *obj, struct lu_dirent *ent); -int lfsck_post(const struct lu_env *env, struct lfsck_instance *lfsck, - int result); -int lfsck_double_scan(const struct lu_env *env, 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, + const char *name); +struct lfsck_assistant_object * +lfsck_assistant_object_init(const struct lu_env *env, const struct lu_fid *fid, + const struct lu_attr *attr, __u64 cookie, + bool is_dir); +struct dt_object * +lfsck_assistant_object_load(const struct lu_env *env, + struct lfsck_instance *lfsck, + struct lfsck_assistant_object *lso); +int lfsck_async_interpret_common(const struct lu_env *env, + struct ptlrpc_request *req, + void *args, int rc); +int lfsck_async_request(const struct lu_env *env, struct obd_export *exp, + struct lfsck_request *lr, + struct ptlrpc_request_set *set, + ptlrpc_interpterer_t interpterer, + void *args, int request); +int lfsck_query_all(const struct lu_env *env, struct lfsck_component *com); +int lfsck_start_assistant(const struct lu_env *env, struct lfsck_component *com, + struct lfsck_start_param *lsp); +int lfsck_checkpoint_generic(const struct lu_env *env, + struct lfsck_component *com); +void lfsck_post_generic(const struct lu_env *env, + struct lfsck_component *com, int *result); +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); /* lfsck_engine.c */ +int lfsck_unpack_ent(struct lu_dirent *ent, __u64 *cookie, __u16 *type); +void lfsck_close_dir(const struct lu_env *env, + struct lfsck_instance *lfsck, int result); +int lfsck_open_dir(const struct lu_env *env, + struct lfsck_instance *lfsck, __u64 cookie); int lfsck_master_engine(void *args); +int lfsck_assistant_engine(void *args); /* lfsck_bookmark.c */ +void lfsck_bookmark_cpu_to_le(struct lfsck_bookmark *des, + struct lfsck_bookmark *src); int lfsck_bookmark_store(const struct lu_env *env, struct lfsck_instance *lfsck); int lfsck_bookmark_setup(const struct lu_env *env, struct lfsck_instance *lfsck); +int lfsck_set_param(const struct lu_env *env, struct lfsck_instance *lfsck, + struct lfsck_start *start, bool reset); /* lfsck_namespace.c */ +int lfsck_namespace_trace_update(const struct lu_env *env, + struct lfsck_component *com, + const struct lu_fid *fid, + const __u8 flags, bool add); +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, bool with_rec); +int lfsck_namespace_rebuild_linkea(const struct lu_env *env, + struct lfsck_component *com, + struct dt_object *obj, + struct linkea_data *ldata); +int lfsck_namespace_repair_dangling(const struct lu_env *env, + struct lfsck_component *com, + struct dt_object *parent, + struct dt_object *child, + struct lfsck_namespace_req *lnr); +int lfsck_namespace_repair_dirent(const struct lu_env *env, + struct lfsck_component *com, + struct dt_object *parent, + 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_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, + struct lfsck_instance *lfsck, + struct dt_object *dir, const char *name, + const struct lu_fid *fid, __u32 type); int lfsck_namespace_setup(const struct lu_env *env, struct lfsck_instance *lfsck); -extern const char *lfsck_status_names[]; +/* 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, + struct lmv_mds_md_v1 *lmv); +int lfsck_shard_name_to_index(const struct lu_env *env, const char *name, + int namelen, __u16 type, + const struct lu_fid *fid); +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 dt_object *parent, + struct dt_object *child, + const struct lu_name *cname); +int lfsck_namespace_update_lmv(const struct lu_env *env, + struct lfsck_component *com, + struct dt_object *obj, + struct lmv_mds_md_v1 *lmv, bool locked); +int lfsck_namespace_verify_stripe_slave(const struct lu_env *env, + struct lfsck_component *com, + struct dt_object *obj, + struct lfsck_lmv *llmv); +int lfsck_namespace_scan_shard(const struct lu_env *env, + struct lfsck_component *com, + struct dt_object *child); +int lfsck_namespace_notify_lmv_master_local(const struct lu_env *env, + struct lfsck_component *com, + struct dt_object *obj); +int lfsck_namespace_repair_bad_name_hash(const struct lu_env *env, + struct lfsck_component *com, + struct dt_object *shard, + struct lfsck_lmv *llmv, + const char *name); +int lfsck_namespace_striped_dir_rescan(const struct lu_env *env, + struct lfsck_component *com, + struct lfsck_namespace_req *lnr); +int lfsck_namespace_handle_striped_master(const struct lu_env *env, + struct lfsck_component *com, + struct lfsck_namespace_req *lnr); + +/* lfsck_layout.c */ +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 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); +} + static inline struct lfsck_thread_info * lfsck_env_info(const struct lu_env *env) { @@ -416,12 +1099,19 @@ lfsck_name_get_const(const struct lu_env *env, const void *area, ssize_t len) { struct lu_name *lname; - lname = &lfsck_env_info(env)->lti_name; + lname = &lfsck_env_info(env)->lti_name_const; lname->ln_name = area; lname->ln_namelen = len; return lname; } +static inline void +lfsck_buf_init(struct lu_buf *buf, void *area, ssize_t len) +{ + buf->lb_buf = area; + buf->lb_len = len; +} + static inline struct lu_buf * lfsck_buf_get(const struct lu_env *env, void *area, ssize_t len) { @@ -524,14 +1214,6 @@ static inline int lfsck_is_dead_obj(const struct dt_object *obj) return !!test_bit(LU_OBJECT_HEARD_BANSHEE, &loh->loh_flags); } -static inline struct dt_object *lfsck_object_find(const struct lu_env *env, - struct lfsck_instance *lfsck, - const struct lu_fid *fid) -{ - return lu2dt(lu_object_find_slice(env, dt2lu_dev(lfsck->li_next), - fid, NULL)); -} - static inline struct dt_object *lfsck_object_get(struct dt_object *obj) { lu_object_get(&obj->do_lu); @@ -544,4 +1226,309 @@ static inline void lfsck_object_put(const struct lu_env *env, lu_object_put(env, &obj->do_lu); } +static inline struct seq_server_site +*lfsck_dev_site(struct lfsck_instance *lfsck) +{ + return lu_site2seq(lfsck->li_bottom->dd_lu_dev.ld_site); +} + +static inline u32 lfsck_dev_idx(struct lfsck_instance *lfsck) +{ + return lfsck_dev_site(lfsck)->ss_node_id; +} + +static inline struct dt_object * +lfsck_object_find_by_dev_new(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_NEW; + return lu2dt(lu_object_find_slice(env, dt2lu_dev(dev), fid, conf)); +} + +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) +{ + return lu2dt(lu_object_find_slice(env, dt2lu_dev(dev), fid, NULL)); +} + +static inline struct dt_device * +lfsck_find_dev_by_fid(const struct lu_env *env, struct lfsck_instance *lfsck, + const struct lu_fid *fid) +{ + struct dt_device *dev; + int idx; + + if (!lfsck->li_master) + return lfsck->li_bottom; + + idx = lfsck_find_mdt_idx_by_fid(env, lfsck, fid); + if (idx < 0) + return ERR_PTR(idx); + + if (idx == lfsck_dev_idx(lfsck)) { + dev = lfsck->li_bottom; + } else { + struct lfsck_tgt_desc *ltd; + + ltd = lfsck_ltd2tgt(&lfsck->li_mdt_descs, idx); + if (unlikely(ltd == NULL)) + return ERR_PTR(-ENODEV); + + dev = ltd->ltd_tgt; + } + + return dev; +} + +static inline struct dt_object * +lfsck_object_find_bottom(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(env, dev, fid); +} + +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) +{ + 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_new(env, dev, fid); +} + +static inline struct dt_object * +lfsck_object_locate(struct dt_device *dev, struct dt_object *obj) +{ + if (lfsck_obj2dev(obj) == dev) { + return obj; + } else { + struct lu_object *lo; + + lo = lu_object_locate(obj->do_lu.lo_header, + dev->dd_lu_dev.ld_type); + if (unlikely(lo == NULL)) + return ERR_PTR(-ENOENT); + + return lu2dt(lo); + } +} + +static inline struct lfsck_tgt_desc *lfsck_tgt_get(struct lfsck_tgt_descs *ltds, + __u32 index) +{ + struct lfsck_tgt_desc *ltd; + + ltd = lfsck_ltd2tgt(ltds, index); + if (ltd != NULL) + atomic_inc(<d->ltd_ref); + + return ltd; +} + +static inline void lfsck_tgt_put(struct lfsck_tgt_desc *ltd) +{ + if (atomic_dec_and_test(<d->ltd_ref)) + OBD_FREE_PTR(ltd); +} + +static inline struct lfsck_component * +lfsck_component_get(struct lfsck_component *com) +{ + atomic_inc(&com->lc_ref); + + return com; +} + +static inline void lfsck_component_put(const struct lu_env *env, + struct lfsck_component *com) +{ + if (atomic_dec_and_test(&com->lc_ref)) { + struct lfsck_sub_trace_obj *lsto; + int i; + + for (i = 0, lsto = &com->lc_sub_trace_objs[0]; + i < LFSCK_STF_COUNT; i++, lsto++) { + if (lsto->lsto_obj != NULL) + lfsck_object_put(env, lsto->lsto_obj); + } + + if (com->lc_obj != NULL) + lfsck_object_put(env, com->lc_obj); + if (com->lc_file_ram != NULL) + OBD_FREE(com->lc_file_ram, com->lc_file_size); + if (com->lc_file_disk != NULL) + OBD_FREE(com->lc_file_disk, com->lc_file_size); + if (com->lc_data != NULL) { + LASSERT(com->lc_ops->lfsck_data_release != NULL); + + com->lc_ops->lfsck_data_release(env, com); + } + + OBD_FREE_PTR(com); + } +} + +static inline struct lfsck_instance * +lfsck_instance_get(struct lfsck_instance *lfsck) +{ + atomic_inc(&lfsck->li_ref); + + return lfsck; +} + +static inline void lfsck_instance_put(const struct lu_env *env, + struct lfsck_instance *lfsck) +{ + if (atomic_dec_and_test(&lfsck->li_ref)) + lfsck_instance_cleanup(env, lfsck); +} + +static inline bool lfsck_phase2_next_ready(struct lfsck_assistant_data *lad) +{ + return list_empty(&lad->lad_mdt_phase1_list) && + (!list_empty(&lad->lad_ost_phase2_list) || + list_empty(&lad->lad_ost_phase1_list)); +} + +static inline void lfsck_lad_set_bitmap(const struct lu_env *env, + struct lfsck_component *com, + __u32 index) +{ + struct lfsck_assistant_data *lad = com->lc_data; + struct cfs_bitmap *bitmap = lad->lad_bitmap; + + LASSERT(com->lc_lfsck->li_master); + LASSERT(bitmap != NULL); + + if (likely(bitmap->size > index)) { + cfs_bitmap_set(bitmap, index); + lad->lad_incomplete = 1; + } else if (com->lc_type == LFSCK_TYPE_NAMESPACE) { + struct lfsck_namespace *ns = com->lc_file_ram; + + ns->ln_flags |= LF_INCOMPLETE; + } +} + +static inline int lfsck_links_read(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, 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, true); +} + +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, + MAX_LINKEA_SIZE); + + return __lfsck_links_read(env, obj, ldata, true); +} + +static inline struct lfsck_lmv *lfsck_lmv_get(struct lfsck_lmv *llmv) +{ + if (llmv != NULL) + atomic_inc(&llmv->ll_ref); + + return llmv; +} + +static inline int lfsck_sub_trace_file_fid2idx(const struct lu_fid *fid) +{ + return fid->f_oid & (LFSCK_STF_COUNT - 1); +} + +static inline void lfsck_lmv_header_le_to_cpu(struct lmv_mds_md_v1 *dst, + const struct lmv_mds_md_v1 *src) +{ + dst->lmv_magic = le32_to_cpu(src->lmv_magic); + dst->lmv_stripe_count = le32_to_cpu(src->lmv_stripe_count); + 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); +} + +static inline void lfsck_lmv_header_cpu_to_le(struct lmv_mds_md_v1 *dst, + const struct lmv_mds_md_v1 *src) +{ + dst->lmv_magic = cpu_to_le32(src->lmv_magic); + dst->lmv_stripe_count = cpu_to_le32(src->lmv_stripe_count); + 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); +} + +static inline struct lfsck_assistant_object * +lfsck_assistant_object_get(struct lfsck_assistant_object *lso) +{ + atomic_inc(&lso->lso_ref); + + return lso; +} + +static inline void +lfsck_assistant_object_put(const struct lu_env *env, + struct lfsck_assistant_object *lso) +{ + if (atomic_dec_and_test(&lso->lso_ref)) + OBD_FREE_PTR(lso); +} #endif /* _LFSCK_INTERNAL_H */