Viewing: lfsck_internal.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2013, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* Shared definitions and declarations for the LFSCK.
*
* Author: Fan, Yong <fan.yong@intel.com>
*/
#ifndef _LFSCK_INTERNAL_H
# define _LFSCK_INTERNAL_H
#include <lustre_lfsck.h>
#include <obd.h>
#include <lu_object.h>
#include <dt_object.h>
#include <md_object.h>
#include <lustre_net.h>
#include <lustre_dlm.h>
#include <lustre_fid.h>
#include <md_object.h>
#include <lustre_linkea.h>
#define LFSCK_CHECKPOINT_INTERVAL 60
enum lfsck_flags {
/* Finish the first cycle scanning. */
LF_SCANNED_ONCE = 0x00000001ULL,
/* There is some namespace inconsistency. */
LF_INCONSISTENT = 0x00000002ULL,
/* The device is upgraded from 1.8 format. */
LF_UPGRADE = 0x00000004ULL,
/* Server restarted during LFSCK may miss to process obj check/repair */
LF_INCOMPLETE = 0x00000008ULL,
/* The LAST_ID (file) crashed. */
LF_CRASHED_LASTID = 0x00000010ULL,
};
struct lfsck_position {
/* low layer object table-based iteration position. */
__u64 lp_oit_cookie;
/* parent FID for directory traversal. */
struct lu_fid lp_dir_parent;
/* namespace-based directory traversal position. */
__u64 lp_dir_cookie;
};
struct lfsck_bookmark {
/* Magic number to detect that this struct contains valid data. */
__u32 lb_magic;
/* For compatible with old versions. */
__u16 lb_version;
/* See 'enum lfsck_param_flags' */
__u16 lb_param;
/* 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. */
__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[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_CHECK_AGENT_ENTRY = 0x40,
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 {
/* Magic number to detect that this struct contains valid data. */
__u32 ln_magic;
/* See 'enum lfsck_status'. */
__u32 ln_status;
/* See 'enum lfsck_flags'. */
__u32 ln_flags;
/* How many completed LFSCK runs on the device. */
__u32 ln_success_count;
/* How long the LFSCK phase1 has run in seconds. */
time64_t ln_run_time_phase1;
/* How long the LFSCK phase2 has run in seconds. */
time64_t ln_run_time_phase2;
/* Time for the last LFSCK completed in seconds since epoch. */
time64_t ln_time_last_complete;
/* Time for the latest LFSCK ran in seconds since epoch. */
time64_t ln_time_latest_start;
/* Time for the last LFSCK checkpoint in seconds since epoch. */
time64_t ln_time_last_checkpoint;
/* Position for the latest LFSCK started from. */
struct lfsck_position ln_pos_latest_start;
/* Position for the last LFSCK checkpoint. */
struct lfsck_position ln_pos_last_checkpoint;
/* Position for the first should be updated object. */
struct lfsck_position ln_pos_first_inconsistent;
/* How many items (including dir) have been checked. */
__u64 ln_items_checked;
/* How many items have been repaired. */
__u64 ln_items_repaired;
/* How many items failed to be processed. */
__u64 ln_items_failed;
/* How many directories have been traversed. */
__u64 ln_dirs_checked;
/* How many objects have been double scanned. */
__u64 ln_objs_checked_phase2;
/* How many objects have been reparied during double scan. */
__u64 ln_objs_repaired_phase2;
/* How many objects failed to be processed during double scan. */
__u64 ln_objs_failed_phase2;
/* How many objects with nlink fixed. */
__u64 ln_objs_nlink_repaired;
/* 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 obj under lost+found 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;
/* 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[11];
};
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. */
time64_t ll_run_time_phase1;
/* How long the LFSCK phase2 has run in seconds. */
time64_t ll_run_time_phase2;
/* Time for the last LFSCK completed in seconds since epoch. */
time64_t ll_time_last_complete;
/* Time for the latest LFSCK ran in seconds since epoch. */
time64_t ll_time_latest_start;
/* Time for the last LFSCK checkpoint in seconds since epoch. */
time64_t 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 first obj to be fixed/failed to be checked in 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;
/* 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];
/* OST target bitmap to record OSTs that contain non-verified OST-obj */
__u8 ll_ost_bitmap[];
};
struct lfsck_assistant_object {
struct lu_fid lso_fid;
__u64 lso_oit_cookie;
struct lu_attr lso_attr;
struct kref 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,
struct lfsck_component *com,
bool init);
void (*lfsck_fail)(const struct lu_env *env,
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_start_param *lsp);
int (*lfsck_exec_oit)(const struct lu_env *env,
struct lfsck_component *com,
struct dt_object *obj);
int (*lfsck_exec_dir)(const struct lu_env *env,
struct lfsck_component *com,
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);
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_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);
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);
};
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;
struct kref ltd_ref;
__u32 ltd_index;
__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;
};
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 */
unsigned long *ltd_tgts_bitmap;
u32 ltd_tgts_mask_len;
/* 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} */
struct list_head lc_link;
/* into lfsck_instance::li_list_dir */
struct list_head lc_link_dir;
struct rw_semaphore lc_sem;
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];
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, seconds */
time64_t lc_time_last_checkpoint;
/* The time for next checkpoint, seconds */
time64_t lc_time_next_checkpoint;
__u32 lc_file_size;
/* How many objects have been checked since last checkpoint. */
__u32 lc_new_checked;
/* 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,
ll_counted: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. */
struct list_head li_link;
/* For the components in (first) scanning via otable-based iteration. */
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.
*/
struct list_head li_list_dir;
/* For the components in double scanning. */
struct list_head li_list_double_scan;
/* For the components those are not scanning now. */
struct list_head li_list_idle;
/* For the lfsck_lmv_unit to be handled. */
struct list_head li_list_lmv;
refcount_t li_ref;
atomic_t li_double_scan_count;
struct task_struct *li_task;
/* The time for last checkpoint, seconds */
time64_t li_time_last_checkpoint;
/* The time for next checkpoint, seconds */
time64_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 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;
/* Obj for directory traversal */
struct dt_object *li_obj_dir;
/* It for otable-based iteration */
struct dt_it *li_di_oit;
/* 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;
/* Arguments for low layer otable-based iteration. */
__u32 li_args_oit;
/* Arugments for namespace-based directory traversal. */
__u32 li_args_dir;
/* Schedule for every N objects. */
__u32 li_sleep_rate;
/* Sleep N jiffies for each schedule. */
__u32 li_sleep_jif;
/* How many objects have been scanned since last sleep. */
__u32 li_new_scanned;
/* 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_start_unplug:1,
li_master_ready:1; /* master engine is ready */
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;
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_start lta_start;
};
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[];
};
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 */
};
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 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 task_struct *lad_task;
const struct lfsck_assistant_operations *lad_ops;
unsigned long *lad_bitmap;
unsigned int lad_bitmap_count;
__u32 lad_touch_gen;
int lad_prefetched;
int lad_assistant_status;
int lad_post_result;
unsigned long lad_flags;
bool lad_advance_lock;
};
enum {
LAD_TO_POST = 0,
LAD_TO_DOUBLE_SCAN = 1,
LAD_IN_DOUBLE_SCAN = 2,
LAD_INCOMPLETE = 3,
LAD_STOPPED = 4,
};
#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_fid lti_fid4;
struct lu_attr lti_la;
struct lu_attr lti_la2;
struct ost_id lti_oi;
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];
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;
struct filter_fid lti_ff;
struct dt_allocation_hint lti_hint;
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;
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;
struct lfsck_layout_dangling_key lti_lldk;
};
/* 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,
enum mds_ibits_locks 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, enum mds_ibits_locks 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);
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 *const names[],
const char *prefix);
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,
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);
void lfsck_thread_args_fini(struct lfsck_thread_args *lta);
struct lfsck_assistant_data *
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,
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);
void lfsck_stop_assistant(struct lfsck_assistant_data *lad);
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);
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);
void lfsck_tgt_free(struct kref *kref);
/* 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 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,
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);
/* 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 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,
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 lfsck_instance *lfsck,
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 *const lfsck_flags_names[];
extern const char *const lfsck_param_names[];
extern struct lu_context_key lfsck_thread_key;
static inline struct dt_device *lfsck_obj2dev(struct dt_object *obj)
{
return container_of_safe(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)
{
struct lfsck_thread_info *info;
info = lu_context_key_get(&env->le_ctx, &lfsck_thread_key);
LASSERT(info != NULL);
return info;
}
static inline const struct lu_name *
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_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)
{
struct lu_buf *buf;
buf = &lfsck_env_info(env)->lti_buf;
buf->lb_buf = area;
buf->lb_len = len;
return buf;
}
static inline const struct lu_buf *
lfsck_buf_get_const(const struct lu_env *env, const void *area, ssize_t len)
{
struct lu_buf *buf;
buf = &lfsck_env_info(env)->lti_buf;
buf->lb_buf = (void *)area;
buf->lb_len = len;
return buf;
}
static inline char *lfsck_lfsck2name(struct lfsck_instance *lfsck)
{
return lfsck->li_bottom->dd_lu_dev.ld_obd->obd_name;
}
static inline const struct lu_fid *lfsck_dto2fid(const struct dt_object *obj)
{
return lu_object_fid(&obj->do_lu);
}
static inline void lfsck_pos_set_zero(struct lfsck_position *pos)
{
memset(pos, 0, sizeof(*pos));
}
static inline int lfsck_pos_is_zero(const struct lfsck_position *pos)
{
return pos->lp_oit_cookie == 0 && fid_is_zero(&pos->lp_dir_parent);
}
static inline int lfsck_pos_is_eq(const struct lfsck_position *pos1,
const struct lfsck_position *pos2)
{
if (pos1->lp_oit_cookie < pos2->lp_oit_cookie)
return -1;
if (pos1->lp_oit_cookie > pos2->lp_oit_cookie)
return 1;
if (fid_is_zero(&pos1->lp_dir_parent) &&
!fid_is_zero(&pos2->lp_dir_parent))
return -1;
if (!fid_is_zero(&pos1->lp_dir_parent) &&
fid_is_zero(&pos2->lp_dir_parent))
return 1;
if (fid_is_zero(&pos1->lp_dir_parent) &&
fid_is_zero(&pos2->lp_dir_parent))
return 0;
LASSERT(lu_fid_eq(&pos1->lp_dir_parent, &pos2->lp_dir_parent));
if (pos1->lp_dir_cookie < pos2->lp_dir_cookie)
return -1;
if (pos1->lp_dir_cookie > pos2->lp_dir_cookie)
return 1;
return 0;
}
static inline void lfsck_position_le_to_cpu(struct lfsck_position *des,
struct lfsck_position *src)
{
des->lp_oit_cookie = le64_to_cpu(src->lp_oit_cookie);
fid_le_to_cpu(&des->lp_dir_parent, &src->lp_dir_parent);
des->lp_dir_cookie = le64_to_cpu(src->lp_dir_cookie);
}
static inline void lfsck_position_cpu_to_le(struct lfsck_position *des,
struct lfsck_position *src)
{
des->lp_oit_cookie = cpu_to_le64(src->lp_oit_cookie);
fid_cpu_to_le(&des->lp_dir_parent, &src->lp_dir_parent);
des->lp_dir_cookie = cpu_to_le64(src->lp_dir_cookie);
}
static inline umode_t lfsck_object_type(const struct dt_object *obj)
{
return lu_object_attr(&obj->do_lu);
}
static inline int lfsck_is_dead_obj(const struct dt_object *obj)
{
return lu_object_is_dying(obj->do_lu.lo_header);
}
static inline struct dt_object *lfsck_object_get(struct dt_object *obj)
{
lu_object_get(&obj->do_lu);
return obj;
}
static inline void lfsck_object_put(const struct lu_env *env,
struct dt_object *obj)
{
dt_object_put(env, obj);
}
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(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_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)
{
struct lu_object *lo;
if (lfsck_obj2dev(obj) == dev)
return obj;
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)
kref_get(<d->ltd_ref);
return 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)
{
refcount_inc(&lfsck->li_ref);
return lfsck;
}
static inline void lfsck_instance_put(const struct lu_env *env,
struct lfsck_instance *lfsck)
{
if (refcount_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;
unsigned long *bitmap = lad->lad_bitmap;
LASSERT(com->lc_lfsck->li_master);
LASSERT(bitmap);
if (likely(lad->lad_bitmap_count > index)) {
set_bit(index, bitmap);
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,
lad->lad_bitmap_count, index);
}
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);
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,
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);
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 *
lfsck_assistant_object_get(struct lfsck_assistant_object *lso)
{
kref_get(&lso->lso_ref);
return lso;
}
static inline void
lfsck_assistant_object_put(struct kref *kref)
{
struct lfsck_assistant_object *lso;
lso = container_of(kref, struct lfsck_assistant_object, 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) {
static int count;
CERROR("%s: transaction is being created in DRYRUN mode!\n",
lfsck_lfsck2name(lfsck));
if (count++ < 3)
dump_stack();
return ERR_PTR(-EINVAL);
}
return dt_trans_create(env, dev);
}
static inline bool lfsck_should_stop(struct lfsck_instance *lfsck)
{
return kthread_should_stop() || !lfsck->li_task;
}
/* ret 1 if lfsck should stop, 0 otherwise */
#define LFSCK_FAIL_TIMEOUT(lfsck, id, timeout) \
({ \
int rc = 0; \
\
if (CFS_FAIL_CHECK(id)) { \
wait_var_event_timeout(lfsck, lfsck_should_stop(lfsck), \
cfs_time_seconds(timeout)); \
if (lfsck_should_stop(lfsck)) \
rc = 1; \
} \
rc; \
})
#endif /* _LFSCK_INTERNAL_H */
