X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;ds=sidebyside;f=lustre%2Flfsck%2Flfsck_internal.h;h=287ae97426670f1621b51cb8ae1362fcd7183c7f;hb=4a656bc480baeb7ca2745a9565742fbcaedd81c1;hp=59215b879293b2aae6e08298501d929ee2c2da32;hpb=e1a87d94e89c175ac8a432be5d6eec138e8915fc;p=fs%2Flustre-release.git diff --git a/lustre/lfsck/lfsck_internal.h b/lustre/lfsck/lfsck_internal.h index 59215b8..287ae97 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, 2014, Intel Corporation. */ /* * lustre/lfsck/lfsck_internal.h @@ -45,14 +45,11 @@ #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_flags { /* Finish the first cycle scanning. */ LF_SCANNED_ONCE = 0x00000001ULL, @@ -101,8 +98,34 @@ struct lfsck_bookmark { /* For 64-bits aligned. */ __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_SKIP_NLINK = 0x04, + 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 { @@ -154,9 +177,6 @@ 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; @@ -169,14 +189,94 @@ 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; + + __u32 ln_reserved_1; /* For further using. 256-bytes aligned now. */ - __u64 ln_reserved[2]; + __u64 ln_reserved[15]; }; enum lfsck_layout_inconsistency_type { @@ -224,7 +324,8 @@ struct lfsck_layout { /* Position for the last LFSCK checkpoint. */ __u64 ll_pos_last_checkpoint; - /* Position for the first should be updated object. */ + /* 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. */ @@ -239,7 +340,7 @@ struct lfsck_layout { /* How many objects failed to be processed during double scan. */ __u64 ll_objs_failed_phase2; - /* kinds of inconsistency have been repaired. + /* 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]; @@ -247,8 +348,16 @@ struct lfsck_layout { * 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. */ - __u64 ll_reserved[12]; + __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_component; @@ -264,6 +373,12 @@ 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); @@ -278,23 +393,17 @@ 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 lu_dirent *ent, + __u16 type); int (*lfsck_post)(const struct lu_env *env, struct lfsck_component *com, int result, bool init); - int (*lfsck_interpret)(const struct lu_env *env, - struct ptlrpc_request *req, - void *args, - int rc); - int (*lfsck_dump)(const struct lu_env *env, struct lfsck_component *com, - char *buf, - int len); + struct seq_file *m); int (*lfsck_double_scan)(const struct lu_env *env, struct lfsck_component *com); @@ -307,17 +416,12 @@ struct lfsck_operations { int (*lfsck_in_notify)(const struct lu_env *env, struct lfsck_component *com, - struct lfsck_request *lr); + struct lfsck_request *lr, + struct thandle *th); int (*lfsck_query)(const struct lu_env *env, struct lfsck_component *com); - int (*lfsck_stop_notify)(const struct lu_env *env, - struct lfsck_component *com, - struct lfsck_tgt_descs *ltds, - struct lfsck_tgt_desc *ltd, - struct ptlrpc_request_set *set); - int (*lfsck_join)(const struct lu_env *env, struct lfsck_component *com, struct lfsck_start_param *lsp); @@ -333,11 +437,16 @@ struct lfsck_tgt_desc { 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; 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_layout_done:1, + ltd_namespace_done:1, + ltd_synced_failures:1; }; struct lfsck_tgt_desc_idx { @@ -361,7 +470,7 @@ struct lfsck_tgt_descs { struct list_head ltd_orphan; /* number of registered TGTs */ - int ltd_tgtnr; + __u32 ltd_tgtnr; }; #define LTD_TGT(ltd, index) \ @@ -371,12 +480,21 @@ struct lfsck_tgt_descs { #define OST_TGT(lfsck, index) LTD_TGT(&lfsck->li_ost_descs, index) #define MDT_TGT(lfsck, index) LTD_TGT(&lfsck->li_mdt_descs, index) +#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; atomic_t lc_ref; @@ -384,10 +502,12 @@ struct lfsck_component { 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; @@ -403,30 +523,101 @@ struct lfsck_component { /* How many objects have been scanned since last sleep. */ __u32 lc_new_scanned; - unsigned int lc_journal:1; __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; +}; + +/* 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; + + /* For the lfsck_lmv_unit to be handled. */ + struct list_head li_list_lmv; atomic_t li_ref; atomic_t li_double_scan_count; @@ -447,10 +638,17 @@ struct lfsck_instance { struct local_oid_storage *li_los; 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; @@ -499,14 +697,7 @@ struct lfsck_instance { li_master:1, /* Master instance or not. */ li_current_oit_processed:1, li_start_unplug:1; -}; - -enum lfsck_linkea_flags { - /* The linkea entries does not match the object nlinks. */ - LLF_UNMATCH_NLINKS = 0x01, - - /* Fail to repair the multiple-linked objects during the double scan. */ - LLF_REPAIR_FAILED = 0x02, + struct lfsck_rec_lmv_save li_rec_lmv_save[LFSCK_REC_LMV_MAX_DEPTH]; }; struct lfsck_async_interpret_args { @@ -514,6 +705,7 @@ struct lfsck_async_interpret_args { 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; }; @@ -525,13 +717,101 @@ struct lfsck_thread_args { struct lfsck_start_param *lta_lsp; }; +struct lfsck_assistant_req { + struct list_head lar_list; +}; + +struct lfsck_namespace_req { + struct lfsck_assistant_req lnr_lar; + struct dt_object *lnr_obj; + struct lfsck_lmv *lnr_lmv; + struct lu_fid lnr_fid; + __u64 lnr_oit_cookie; + __u64 lnr_dir_cookie; + __u32 lnr_attr; + __u32 lnr_size; + __u16 lnr_type; + __u16 lnr_namelen; + char lnr_name[0]; +}; + +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; + + /* list for the ost targets in phase1 scanning. */ + struct list_head lad_ost_phase1_list; + + /* list for the ost targets in phase1 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 phase1 scanning. */ + struct list_head lad_mdt_phase2_list; + + const char *lad_name; + struct ptlrpc_thread lad_thread; + + struct lfsck_assistant_operations *lad_ops; + + cfs_bitmap_t *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; +}; + +#define LFSCK_TMPBUF_LEN 64 + 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; struct lu_attr lti_la2; struct lu_attr lti_la3; @@ -542,83 +822,197 @@ struct lfsck_thread_info { char lti_lma_old[LMA_OLD_SIZE]; }; struct dt_object_format lti_dof; - /* 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]; + /* 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; ldlm_policy_data_t 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; }; /* 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, ldlm_mode_t mode); +void lfsck_ibits_unlock(struct lustre_handle *lh, ldlm_mode_t mode); +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); const char *lfsck_status2names(enum lfsck_status status); 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); -int lfsck_bits_dump(char **buf, int *len, int bits, const char *names[], +int lfsck_bits_dump(struct seq_file *m, int bits, const char *names[], 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, +int lfsck_time_dump(struct seq_file *m, __u64 time, const char *prefix); +int 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, struct lfsck_position *pos, bool init); +bool __lfsck_set_speed(struct lfsck_instance *lfsck, __u32 limit); void lfsck_control_speed(struct lfsck_instance *lfsck); void lfsck_control_speed_by_self(struct lfsck_component *com); -int lfsck_reset(const struct lu_env *env, struct lfsck_instance *lfsck, - bool init); -struct lfsck_thread_args *lfsck_thread_args_init(struct lfsck_instance *lfsck, - struct lfsck_component *com, - struct lfsck_start_param *lsp); void lfsck_thread_args_fini(struct lfsck_thread_args *lta); -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, - struct lfsck_start_param *lsp); -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_quit(const struct lu_env *env, struct lfsck_instance *lfsck); +struct lfsck_assistant_data * +lfsck_assistant_data_init(struct lfsck_assistant_operations *lao, + const char *name); +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_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); +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 *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_device *dev, + 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 *parent, const char *name, + const struct lu_fid *pfid, __u32 type); int lfsck_namespace_setup(const struct lu_env *env, struct lfsck_instance *lfsck); +/* 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_obj2dt_dev(struct dt_object *obj) { return container_of0(obj->do_lu.lo_dev, struct dt_device, dd_lu_dev); @@ -639,12 +1033,19 @@ 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) { @@ -747,14 +1148,6 @@ 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); @@ -767,17 +1160,86 @@ static inline void lfsck_object_put(const struct lu_env *env, lu_object_put(env, &obj->do_lu); } +static inline u32 lfsck_dev_idx(struct dt_device *dev) +{ + return dev->dd_lu_dev.ld_site->ld_seq_site->ss_node_id; +} + +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) { - struct dt_object *obj; + return lu2dt(lu_object_find_slice(env, dt2lu_dev(dev), fid, NULL)); +} + +static inline struct dt_object *lfsck_object_find(const struct lu_env *env, + struct lfsck_instance *lfsck, + const struct lu_fid *fid) +{ + return lfsck_object_find_by_dev(env, lfsck->li_next, fid); +} - obj = lu2dt(lu_object_find_slice(env, dt2lu_dev(dev), fid, NULL)); - if (unlikely(obj == NULL)) - return ERR_PTR(-ENOENT); +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; - return obj; + idx = lfsck_find_mdt_idx_by_fid(env, lfsck, fid); + if (idx < 0) + return ERR_PTR(idx); + + if (idx == lfsck_dev_idx(lfsck->li_bottom)) { + dev = lfsck->li_bottom; + } else { + struct lfsck_tgt_desc *ltd; + + ltd = LTD_TGT(&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 lfsck_tgt_desc *lfsck_tgt_get(struct lfsck_tgt_descs *ltds, @@ -810,6 +1272,15 @@ 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) + lu_object_put(env, &lsto->lsto_obj->do_lu); + } + if (com->lc_obj != NULL) lu_object_put_nocache(env, &com->lc_obj->do_lu); if (com->lc_file_ram != NULL) @@ -841,9 +1312,85 @@ static inline void lfsck_instance_put(const struct lu_env *env, lfsck_instance_cleanup(env, lfsck); } -static inline mdsno_t lfsck_dev_idx(struct dt_device *dev) +static inline bool lfsck_phase2_next_ready(struct lfsck_assistant_data *lad) { - return dev->dd_lu_dev.ld_site->ld_seq_site->ss_node_id; + 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; + cfs_bitmap_t *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, + PAGE_CACHE_SIZE); + + return __lfsck_links_read(env, obj, ldata); +} + +static inline int lfsck_links_read2(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_CACHE_SIZE); + + return __lfsck_links_read(env, obj, ldata); +} + +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); +} #endif /* _LFSCK_INTERNAL_H */