* GPL HEADER END
*/
/*
- * Copyright (c) 2012 Whamcloud, Inc.
+ * Copyright (c) 2012, 2013, Intel Corporation.
*/
/*
* lustre/osd-ldiskfs/osd_scrub.c
* Author: Fan Yong <yong.fan@whamcloud.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
-#define DEBUG_SUBSYSTEM S_MDS
+#define DEBUG_SUBSYSTEM S_LFSCK
#include <lustre/lustre_idl.h>
#include <lustre_disk.h>
#include <dt_object.h>
+#include <linux/xattr.h>
#include "osd_internal.h"
#include "osd_oi.h"
#include "osd_scrub.h"
-#define HALF_SEC (CFS_HZ >> 1)
+#define HALF_SEC (HZ >> 1)
+
+#define OSD_OTABLE_MAX_HASH 0x00000000ffffffffULL
+
+#define SCRUB_NEXT_BREAK 1 /* exit current loop and process next group */
+#define SCRUB_NEXT_CONTINUE 2 /* skip current object and process next bit */
+#define SCRUB_NEXT_EXIT 3 /* exit all the loops */
+#define SCRUB_NEXT_WAIT 4 /* wait for free cache slot */
+#define SCRUB_NEXT_CRASH 5 /* simulate system crash during OI scrub */
+#define SCRUB_NEXT_FATAL 6 /* simulate failure during OI scrub */
+#define SCRUB_NEXT_NOSCRUB 7 /* new created object, no scrub on it */
+#define SCRUB_NEXT_NOLMA 8 /* the inode has no FID-in-LMA */
+#define SCRUB_NEXT_OSTOBJ 9 /* for OST-object */
+#define SCRUB_NEXT_OSTOBJ_OLD 10 /* old OST-object, no LMA or no FID-on-OST
+ * flags in LMA */
+
+/* misc functions */
static inline struct osd_device *osd_scrub2dev(struct osd_scrub *scrub)
{
return osd_sb(osd_scrub2dev(scrub));
}
+static inline int osd_scrub_has_window(struct osd_scrub *scrub,
+ struct osd_otable_cache *ooc)
+{
+ return scrub->os_pos_current < ooc->ooc_pos_preload + SCRUB_WINDOW_SIZE;
+}
+
+static inline const char *osd_scrub2name(struct osd_scrub *scrub)
+{
+ return LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name;
+}
+
+/**
+ * update/insert/delete the specified OI mapping (@fid @id) according to the ops
+ *
+ * \retval 1, changed nothing
+ * \retval 0, changed successfully
+ * \retval -ve, on error
+ */
+static int osd_scrub_refresh_mapping(struct osd_thread_info *info,
+ struct osd_device *dev,
+ const struct lu_fid *fid,
+ const struct osd_inode_id *id,
+ int ops, bool force,
+ enum oi_check_flags flags)
+{
+ handle_t *th;
+ int rc;
+ ENTRY;
+
+ if (dev->od_scrub.os_file.sf_param & SP_DRYRUN && !force)
+ RETURN(0);
+
+ /* DTO_INDEX_INSERT is enough for other two ops:
+ * delete/update, but save stack. */
+ th = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC,
+ osd_dto_credits_noquota[DTO_INDEX_INSERT]);
+ if (IS_ERR(th)) {
+ rc = PTR_ERR(th);
+ CDEBUG(D_LFSCK, "%s: fail to start trans for scrub op %d "
+ DFID" => %u/%u: rc = %d\n", osd_name(dev), ops,
+ PFID(fid), id->oii_ino, id->oii_gen, rc);
+ RETURN(rc);
+ }
+
+ switch (ops) {
+ case DTO_INDEX_UPDATE:
+ rc = osd_oi_update(info, dev, fid, id, th, flags);
+ if (unlikely(rc == -ENOENT)) {
+ /* Some unlink thread may removed the OI mapping. */
+ rc = 1;
+ }
+ break;
+ case DTO_INDEX_INSERT:
+ rc = osd_oi_insert(info, dev, fid, id, th, flags);
+ if (unlikely(rc == -EEXIST)) {
+ rc = 1;
+ /* XXX: There are trouble things when adding OI
+ * mapping for IGIF object, which may cause
+ * multiple objects to be mapped to the same
+ * IGIF formatted FID. Consider the following
+ * situations:
+ *
+ * 1) The MDT is upgrading from 1.8 device.
+ * The OI scrub generates IGIF FID1 for the
+ * OBJ1 and adds the OI mapping.
+ *
+ * 2) For some reason, the OI scrub does not
+ * process all the IGIF objects completely.
+ *
+ * 3) The MDT is backuped and restored against
+ * this device.
+ *
+ * 4) When the MDT mounts up, the OI scrub will
+ * try to rebuild the OI files. For some IGIF
+ * object, OBJ2, which was not processed by the
+ * OI scrub before the backup/restore, and the
+ * new generated IGIF formatted FID may be just
+ * the FID1, the same as OBJ1.
+ *
+ * Under such case, the OI scrub cannot know how
+ * to generate new FID for the OBJ2.
+ *
+ * Currently, we do nothing for that. One possible
+ * solution is to generate new normal FID for the
+ * conflict object.
+ *
+ * Anyway, it is rare, only exists in theory. */
+ }
+ break;
+ case DTO_INDEX_DELETE:
+ rc = osd_oi_delete(info, dev, fid, th, flags);
+ if (rc == -ENOENT) {
+ /* It is normal that the unlink thread has removed the
+ * OI mapping already. */
+ rc = 1;
+ }
+ break;
+ default:
+ LASSERTF(0, "Unexpected ops %d\n", ops);
+ break;
+ }
+
+ ldiskfs_journal_stop(th);
+ if (rc < 0)
+ CDEBUG(D_LFSCK, "%s: fail to refresh OI map for scrub op %d "
+ DFID" => %u/%u: rc = %d\n", osd_name(dev), ops,
+ PFID(fid), id->oii_ino, id->oii_gen, rc);
+
+ RETURN(rc);
+}
+
+/* OI_scrub file ops */
+
static void osd_scrub_file_to_cpu(struct scrub_file *des,
struct scrub_file *src)
{
des->sf_run_time = le32_to_cpu(src->sf_run_time);
des->sf_success_count = le32_to_cpu(src->sf_success_count);
des->sf_oi_count = le16_to_cpu(src->sf_oi_count);
+ des->sf_internal_flags = le16_to_cpu(src->sf_internal_flags);
memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
}
des->sf_run_time = cpu_to_le32(src->sf_run_time);
des->sf_success_count = cpu_to_le32(src->sf_success_count);
des->sf_oi_count = cpu_to_le16(src->sf_oi_count);
+ des->sf_internal_flags = cpu_to_le16(src->sf_internal_flags);
memcpy(des->sf_oi_bitmap, src->sf_oi_bitmap, SCRUB_OI_BITMAP_SIZE);
}
{
struct scrub_file *sf = &scrub->os_file;
- CDEBUG(D_LFSCK, "Reset OI scrub file, flags = "LPX64"\n", flags);
+ CDEBUG(D_LFSCK, "%.16s: reset OI scrub file, flags = "LPX64"\n",
+ osd_scrub2name(scrub), flags);
memcpy(sf->sf_uuid, uuid, 16);
sf->sf_status = SS_INIT;
sf->sf_flags |= flags;
- sf->sf_param = 0;
sf->sf_run_time = 0;
sf->sf_time_latest_start = 0;
sf->sf_time_last_checkpoint = 0;
static int osd_scrub_file_load(struct osd_scrub *scrub)
{
loff_t pos = 0;
- char *name = LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name;
int len = sizeof(scrub->os_file_disk);
int rc;
osd_scrub_file_to_cpu(sf, &scrub->os_file_disk);
if (sf->sf_magic != SCRUB_MAGIC_V1) {
- CWARN("%.16s: invalid scrub magic 0x%x != 0x%x\n,",
- name, sf->sf_magic, SCRUB_MAGIC_V1);
+ CDEBUG(D_LFSCK, "%.16s: invalid scrub magic "
+ "0x%x != 0x%x\n", osd_scrub2name(scrub),
+ sf->sf_magic, SCRUB_MAGIC_V1);
/* Process it as new scrub file. */
rc = -ENOENT;
} else {
rc = 0;
}
} else if (rc != 0) {
- CERROR("%.16s: fail to load scrub file, expected = %d, "
- "rc = %d\n", name, len, rc);
+ CDEBUG(D_LFSCK, "%.16s: fail to load scrub file, "
+ "expected = %d: rc = %d\n",
+ osd_scrub2name(scrub), len, rc);
if (rc > 0)
rc = -EFAULT;
} else {
dev = container_of0(scrub, struct osd_device, od_scrub);
credits = osd_dto_credits_noquota[DTO_WRITE_BASE] +
osd_dto_credits_noquota[DTO_WRITE_BLOCK];
- jh = ldiskfs_journal_start_sb(osd_sb(dev), credits);
+ jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, credits);
if (IS_ERR(jh)) {
rc = PTR_ERR(jh);
- CERROR("%.16s: fail to start trans for scrub store, rc = %d\n",
- LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name,rc);
+ CDEBUG(D_LFSCK, "%.16s: fail to start trans for scrub store: "
+ "rc = %d\n", osd_scrub2name(scrub), rc);
return rc;
}
len, 0, &pos, jh);
ldiskfs_journal_stop(jh);
if (rc != 0)
- CERROR("%.16s: fail to store scrub file, expected = %d, "
- "rc = %d\n",
- LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name,
- len, rc);
+ CDEBUG(D_LFSCK, "%.16s: fail to store scrub file, "
+ "expected = %d: rc = %d\n",
+ osd_scrub2name(scrub), len, rc);
+
scrub->os_time_last_checkpoint = cfs_time_current();
scrub->os_time_next_checkpoint = scrub->os_time_last_checkpoint +
cfs_time_seconds(SCRUB_CHECKPOINT_INTERVAL);
return rc;
}
-static int osd_scrub_prep(struct osd_device *dev)
+static int
+osd_scrub_convert_ff(struct osd_thread_info *info, struct osd_device *dev,
+ struct inode *inode, const struct lu_fid *fid)
{
- struct osd_scrub *scrub = &dev->od_scrub;
- struct ptlrpc_thread *thread = &scrub->os_thread;
- struct scrub_file *sf = &scrub->os_file;
- __u32 flags = scrub->os_start_flags;
- int rc;
+ struct filter_fid_old *ff = &info->oti_ff;
+ struct dentry *dentry = &info->oti_obj_dentry;
+ handle_t *jh;
+ int size = 0;
+ int rc;
+ bool removed = false;
+ bool reset = true;
ENTRY;
- cfs_down_write(&scrub->os_rwsem);
- if (flags & SS_SET_FAILOUT)
- sf->sf_param |= SP_FAILOUT;
-
- if (flags & SS_CLEAR_FAILOUT)
- sf->sf_param &= ~SP_FAILOUT;
-
- if (flags & SS_RESET)
- osd_scrub_file_reset(scrub,
- LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, sf->sf_flags);
+ if (dev->od_scrub.os_file.sf_param & SP_DRYRUN)
+ RETURN(0);
- if (flags & SS_AUTO) {
- scrub->os_full_speed = 1;
- sf->sf_flags |= SF_AUTO;
- } else {
- scrub->os_full_speed = 0;
+ /* We want the LMA to fit into the 256-byte OST inode, so operate
+ * as following:
+ * 1) read old XATTR_NAME_FID and save the parent FID;
+ * 2) delete the old XATTR_NAME_FID;
+ * 3) make new LMA and add it;
+ * 4) generate new XATTR_NAME_FID with the saved parent FID and add it.
+ *
+ * Making the LMA to fit into the 256-byte OST inode can save time for
+ * normal osd_check_lma() and for other OI scrub scanning in future.
+ * So it is worth to make some slow conversion here. */
+ jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC,
+ osd_dto_credits_noquota[DTO_XATTR_SET] * 3);
+ if (IS_ERR(jh)) {
+ rc = PTR_ERR(jh);
+ CDEBUG(D_LFSCK, "%s: fail to start trans for convert ff "
+ DFID": rc = %d\n", osd_name(dev), PFID(fid), rc);
+ RETURN(rc);
}
- if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT))
- scrub->os_full_speed = 1;
-
- scrub->os_in_prior = 0;
- scrub->os_waiting = 0;
- scrub->os_new_checked = 0;
- if (sf->sf_pos_last_checkpoint != 0)
- sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
- else
- sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev));
+ /* 1) read old XATTR_NAME_FID and save the parent FID */
+ rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
+ if (rc == sizeof(*ff)) {
+ /* 2) delete the old XATTR_NAME_FID */
+ ll_vfs_dq_init(inode);
+ rc = inode->i_op->removexattr(dentry, XATTR_NAME_FID);
+ if (rc != 0)
+ GOTO(stop, rc);
- scrub->os_pos_current = sf->sf_pos_latest_start;
- sf->sf_status = SS_SCANNING;
- sf->sf_time_latest_start = cfs_time_current_sec();
- sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
- rc = osd_scrub_file_store(scrub);
- if (rc == 0) {
- cfs_spin_lock(&scrub->os_lock);
- thread_set_flags(thread, SVC_RUNNING);
- cfs_spin_unlock(&scrub->os_lock);
- cfs_waitq_broadcast(&thread->t_ctl_waitq);
+ removed = true;
+ } else if (unlikely(rc == -ENODATA)) {
+ reset = false;
+ } else if (rc != sizeof(struct filter_fid)) {
+ GOTO(stop, rc = -EINVAL);
}
- cfs_up_write(&scrub->os_rwsem);
- RETURN(rc);
-}
+ /* 3) make new LMA and add it */
+ rc = osd_ea_fid_set(info, inode, fid, LMAC_FID_ON_OST, 0);
+ if (rc == 0 && reset)
+ size = sizeof(struct filter_fid);
+ else if (rc != 0 && removed)
+ /* If failed, we should try to add the old back. */
+ size = sizeof(struct filter_fid_old);
+
+ /* 4) generate new XATTR_NAME_FID with the saved parent FID and add it*/
+ if (size > 0) {
+ int rc1;
+
+ rc1 = __osd_xattr_set(info, inode, XATTR_NAME_FID, ff, size,
+ XATTR_CREATE);
+ if (rc1 != 0 && rc == 0)
+ rc = rc1;
+ }
-static int
-osd_scrub_error(struct osd_device *dev, struct osd_inode_id *lid, int rc)
-{
- struct osd_scrub *scrub = &dev->od_scrub;
- struct scrub_file *sf = &scrub->os_file;
+ GOTO(stop, rc);
- cfs_down_write(&scrub->os_rwsem);
- scrub->os_new_checked++;
- sf->sf_items_failed++;
- if (sf->sf_pos_first_inconsistent == 0 ||
- sf->sf_pos_first_inconsistent > lid->oii_ino)
- sf->sf_pos_first_inconsistent = lid->oii_ino;
- cfs_up_write(&scrub->os_rwsem);
- return sf->sf_param & SP_FAILOUT ? rc : 0;
+stop:
+ ldiskfs_journal_stop(jh);
+ if (rc < 0)
+ CDEBUG(D_LFSCK, "%s: fail to convert ff "DFID": rc = %d\n",
+ osd_name(dev), PFID(fid), rc);
+ return rc;
}
static int
osd_scrub_check_update(struct osd_thread_info *info, struct osd_device *dev,
- struct osd_idmap_cache *oic)
+ struct osd_idmap_cache *oic, int val)
{
struct osd_scrub *scrub = &dev->od_scrub;
struct scrub_file *sf = &scrub->os_file;
+ struct lu_fid *fid = &oic->oic_fid;
+ struct osd_inode_id *lid = &oic->oic_lid;
struct osd_inode_id *lid2 = &info->oti_id;
- struct lu_fid *oi_fid = &info->oti_fid;
- struct osd_inode_id *oi_id = &info->oti_id2;
- handle_t *jh = NULL;
struct osd_inconsistent_item *oii = NULL;
struct inode *inode = NULL;
- struct lu_fid *fid = &oic->oic_fid;
- struct osd_inode_id *lid = &oic->oic_lid;
- struct iam_container *bag;
- struct iam_path_descr *ipd;
int ops = DTO_INDEX_UPDATE;
int idx;
int rc;
+ bool converted = false;
ENTRY;
+ down_write(&scrub->os_rwsem);
+ scrub->os_new_checked++;
+ if (val < 0)
+ GOTO(out, rc = val);
+
if (scrub->os_in_prior)
- oii = cfs_list_entry(oic, struct osd_inconsistent_item,
- oii_cache);
+ oii = list_entry(oic, struct osd_inconsistent_item,
+ oii_cache);
- cfs_down_write(&scrub->os_rwsem);
- scrub->os_new_checked++;
if (lid->oii_ino < sf->sf_pos_latest_start && oii == NULL)
GOTO(out, rc = 0);
- if (oii != NULL && oii->oii_insert)
- goto iget;
-
- rc = osd_oi_lookup(info, dev, fid, lid2);
- if (rc != 0) {
- if (rc != -ENOENT)
- GOTO(out, rc);
+ if (fid_is_igif(fid))
+ sf->sf_items_igif++;
-iget:
+ if (val == SCRUB_NEXT_OSTOBJ_OLD) {
inode = osd_iget(info, dev, lid);
if (IS_ERR(inode)) {
rc = PTR_ERR(inode);
GOTO(out, rc);
}
- /* Prevent the inode to be unlinked during OI scrub. */
- cfs_mutex_lock(&inode->i_mutex);
- if (unlikely(inode->i_nlink == 0)) {
- cfs_mutex_unlock(&inode->i_mutex);
- iput(inode);
- GOTO(out, rc = 0);
+ sf->sf_flags |= SF_UPGRADE;
+ sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
+ dev->od_check_ff = 1;
+ rc = osd_scrub_convert_ff(info, dev, inode, fid);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ converted = true;
+ }
+
+ if ((val == SCRUB_NEXT_NOLMA) &&
+ (!scrub->os_convert_igif || OBD_FAIL_CHECK(OBD_FAIL_FID_NOLMA)))
+ GOTO(out, rc = 0);
+
+ if ((oii != NULL && oii->oii_insert) || (val == SCRUB_NEXT_NOLMA))
+ goto iget;
+
+ rc = osd_oi_lookup(info, dev, fid, lid2,
+ (val == SCRUB_NEXT_OSTOBJ ||
+ val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
+ if (rc != 0) {
+ if (rc != -ENOENT && rc != -ESTALE)
+ GOTO(out, rc);
+
+iget:
+ if (inode == NULL) {
+ inode = osd_iget(info, dev, lid);
+ if (IS_ERR(inode)) {
+ rc = PTR_ERR(inode);
+ /* Someone removed the inode. */
+ if (rc == -ENOENT || rc == -ESTALE)
+ rc = 0;
+ GOTO(out, rc);
+ }
}
+ scrub->os_full_speed = 1;
ops = DTO_INDEX_INSERT;
idx = osd_oi_fid2idx(dev, fid);
- if (unlikely(!ldiskfs_test_bit(idx, sf->sf_oi_bitmap)))
- ldiskfs_set_bit(idx, sf->sf_oi_bitmap);
- sf->sf_flags |= SF_RECREATED;
- } else if (osd_id_eq(lid, lid2)) {
- GOTO(out, rc = 0);
- }
-
- sf->sf_flags |= SF_INCONSISTENT;
- fid_cpu_to_be(oi_fid, fid);
- osd_id_pack(oi_id, &oic->oic_lid);
- jh = ldiskfs_journal_start_sb(osd_sb(dev),
- osd_dto_credits_noquota[ops]);
- if (IS_ERR(jh)) {
- rc = PTR_ERR(jh);
- CERROR("%.16s: fail to start trans for scrub store, rc = %d\n",
- LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name, rc);
- GOTO(out, rc);
- }
+ switch (val) {
+ case SCRUB_NEXT_NOLMA:
+ sf->sf_flags |= SF_UPGRADE;
+ if (!(sf->sf_param & SP_DRYRUN)) {
+ rc = osd_ea_fid_set(info, inode, fid, 0, 0);
+ if (rc != 0)
+ GOTO(out, rc);
+ }
- bag = &osd_fid2oi(dev, fid)->oi_dir.od_container;
- ipd = osd_idx_ipd_get(info->oti_env, bag);
- if (unlikely(ipd == NULL)) {
- ldiskfs_journal_stop(jh);
- CERROR("%.16s: fail to get ipd for scrub store\n",
- LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name);
- GOTO(out, rc = -ENOMEM);
- }
+ if (!(sf->sf_flags & SF_INCONSISTENT))
+ dev->od_igif_inoi = 0;
+ break;
+ case SCRUB_NEXT_OSTOBJ:
+ sf->sf_flags |= SF_INCONSISTENT;
+ case SCRUB_NEXT_OSTOBJ_OLD:
+ break;
+ default:
+ sf->sf_flags |= SF_RECREATED;
+ if (unlikely(!ldiskfs_test_bit(idx, sf->sf_oi_bitmap)))
+ ldiskfs_set_bit(idx, sf->sf_oi_bitmap);
+ break;
+ }
+ } else if (osd_id_eq(lid, lid2)) {
+ if (converted)
+ sf->sf_items_updated++;
- if (ops == DTO_INDEX_UPDATE) {
- rc = iam_update(jh, bag, (const struct iam_key *)oi_fid,
- (struct iam_rec *)oi_id, ipd);
+ GOTO(out, rc = 0);
} else {
- rc = iam_insert(jh, bag, (const struct iam_key *)oi_fid,
- (struct iam_rec *)oi_id, ipd);
- if (rc == -EEXIST)
- rc = 1;
+ scrub->os_full_speed = 1;
+ sf->sf_flags |= SF_INCONSISTENT;
+
+ /* XXX: If the device is restored from file-level backup, then
+ * some IGIFs may have been already in OI files, and some
+ * may be not yet. Means upgrading from 1.8 may be partly
+ * processed, but some clients may hold some immobilized
+ * IGIFs, and use them to access related objects. Under
+ * such case, OSD does not know whether an given IGIF has
+ * been processed or to be processed, and it also cannot
+ * generate local ino#/gen# directly from the immobilized
+ * IGIF because of the backup/restore. Then force OSD to
+ * lookup the given IGIF in OI files, and if no entry,
+ * then ask the client to retry after upgrading completed.
+ * No better choice. */
+ dev->od_igif_inoi = 1;
}
- osd_ipd_put(info->oti_env, bag, ipd);
- ldiskfs_journal_stop(jh);
+
+ rc = osd_scrub_refresh_mapping(info, dev, fid, lid, ops, false,
+ (val == SCRUB_NEXT_OSTOBJ ||
+ val == SCRUB_NEXT_OSTOBJ_OLD) ? OI_KNOWN_ON_OST : 0);
if (rc == 0) {
if (scrub->os_in_prior)
sf->sf_items_updated_prior++;
else
sf->sf_items_updated++;
+
+ /* The target has been changed, need to be re-loaded. */
+ lu_object_purge(info->oti_env, osd2lu_dev(dev), fid);
}
GOTO(out, rc);
rc = 0;
}
- if (ops == DTO_INDEX_INSERT) {
- cfs_mutex_unlock(&inode->i_mutex);
+ /* There may be conflict unlink during the OI scrub,
+ * if happend, then remove the new added OI mapping. */
+ if (ops == DTO_INDEX_INSERT && inode != NULL && !IS_ERR(inode) &&
+ unlikely(inode->i_nlink == 0))
+ osd_scrub_refresh_mapping(info, dev, fid, lid,
+ DTO_INDEX_DELETE, false,
+ (val == SCRUB_NEXT_OSTOBJ ||
+ val == SCRUB_NEXT_OSTOBJ_OLD) ?
+ OI_KNOWN_ON_OST : 0);
+ up_write(&scrub->os_rwsem);
+
+ if (inode != NULL && !IS_ERR(inode))
iput(inode);
- }
- cfs_up_write(&scrub->os_rwsem);
if (oii != NULL) {
- LASSERT(!cfs_list_empty(&oii->oii_list));
+ LASSERT(!list_empty(&oii->oii_list));
- cfs_spin_lock(&scrub->os_lock);
- cfs_list_del_init(&oii->oii_list);
- cfs_spin_unlock(&scrub->os_lock);
+ spin_lock(&scrub->os_lock);
+ list_del_init(&oii->oii_list);
+ spin_unlock(&scrub->os_lock);
OBD_FREE_PTR(oii);
}
RETURN(sf->sf_param & SP_FAILOUT ? rc : 0);
}
-static int do_osd_scrub_checkpoint(struct osd_scrub *scrub)
+/* OI scrub APIs */
+
+static int osd_scrub_prep(struct osd_device *dev)
+{
+ struct osd_scrub *scrub = &dev->od_scrub;
+ struct ptlrpc_thread *thread = &scrub->os_thread;
+ struct scrub_file *sf = &scrub->os_file;
+ __u32 flags = scrub->os_start_flags;
+ int rc;
+ bool drop_dryrun = false;
+ ENTRY;
+
+ down_write(&scrub->os_rwsem);
+ if (flags & SS_SET_FAILOUT)
+ sf->sf_param |= SP_FAILOUT;
+
+ if (flags & SS_CLEAR_FAILOUT)
+ sf->sf_param &= ~SP_FAILOUT;
+
+ if (flags & SS_SET_DRYRUN)
+ sf->sf_param |= SP_DRYRUN;
+
+ if (flags & SS_CLEAR_DRYRUN && sf->sf_param & SP_DRYRUN) {
+ sf->sf_param &= ~SP_DRYRUN;
+ drop_dryrun = true;
+ }
+
+ if (flags & SS_RESET)
+ osd_scrub_file_reset(scrub,
+ LDISKFS_SB(osd_sb(dev))->s_es->s_uuid, 0);
+
+ if (flags & SS_AUTO) {
+ scrub->os_full_speed = 1;
+ sf->sf_flags |= SF_AUTO;
+ /* For the case of OI scrub auto triggered, NOT dryrun. */
+ sf->sf_param &= ~SP_FAILOUT;
+ } else {
+ scrub->os_full_speed = 0;
+ }
+
+ if (sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_UPGRADE))
+ scrub->os_full_speed = 1;
+
+ scrub->os_in_prior = 0;
+ spin_lock(&scrub->os_lock);
+ scrub->os_waiting = 0;
+ scrub->os_paused = 0;
+ spin_unlock(&scrub->os_lock);
+ scrub->os_new_checked = 0;
+ if (drop_dryrun && sf->sf_pos_first_inconsistent != 0)
+ sf->sf_pos_latest_start = sf->sf_pos_first_inconsistent;
+ else if (sf->sf_pos_last_checkpoint != 0)
+ sf->sf_pos_latest_start = sf->sf_pos_last_checkpoint + 1;
+ else
+ sf->sf_pos_latest_start = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
+
+ scrub->os_pos_current = sf->sf_pos_latest_start;
+ sf->sf_status = SS_SCANNING;
+ sf->sf_time_latest_start = cfs_time_current_sec();
+ sf->sf_time_last_checkpoint = sf->sf_time_latest_start;
+ rc = osd_scrub_file_store(scrub);
+ if (rc == 0) {
+ spin_lock(&scrub->os_lock);
+ thread_set_flags(thread, SVC_RUNNING);
+ spin_unlock(&scrub->os_lock);
+ wake_up_all(&thread->t_ctl_waitq);
+ }
+ up_write(&scrub->os_rwsem);
+
+ RETURN(rc);
+}
+
+static int osd_scrub_checkpoint(struct osd_scrub *scrub)
{
struct scrub_file *sf = &scrub->os_file;
int rc;
- ENTRY;
- cfs_down_write(&scrub->os_rwsem);
+ if (likely(cfs_time_before(cfs_time_current(),
+ scrub->os_time_next_checkpoint) ||
+ scrub->os_new_checked == 0))
+ return 0;
+
+ down_write(&scrub->os_rwsem);
sf->sf_items_checked += scrub->os_new_checked;
scrub->os_new_checked = 0;
sf->sf_pos_last_checkpoint = scrub->os_pos_current;
sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
scrub->os_time_last_checkpoint);
rc = osd_scrub_file_store(scrub);
- cfs_up_write(&scrub->os_rwsem);
-
- RETURN(rc);
-}
+ up_write(&scrub->os_rwsem);
-static inline int osd_scrub_checkpoint(struct osd_scrub *scrub)
-{
- if (unlikely(cfs_time_beforeq(scrub->os_time_next_checkpoint,
- cfs_time_current()) &&
- scrub->os_new_checked > 0))
- return do_osd_scrub_checkpoint(scrub);
- return 0;
+ return rc;
}
static void osd_scrub_post(struct osd_scrub *scrub, int result)
struct scrub_file *sf = &scrub->os_file;
ENTRY;
- cfs_down_write(&scrub->os_rwsem);
- cfs_spin_lock(&scrub->os_lock);
+ down_write(&scrub->os_rwsem);
+ spin_lock(&scrub->os_lock);
thread_set_flags(&scrub->os_thread, SVC_STOPPING);
- cfs_spin_unlock(&scrub->os_lock);
+ spin_unlock(&scrub->os_lock);
if (scrub->os_new_checked > 0) {
sf->sf_items_checked += scrub->os_new_checked;
scrub->os_new_checked = 0;
}
sf->sf_time_last_checkpoint = cfs_time_current_sec();
if (result > 0) {
+ struct osd_device *dev =
+ container_of0(scrub, struct osd_device, od_scrub);
+
+ dev->od_igif_inoi = 1;
+ dev->od_check_ff = 0;
sf->sf_status = SS_COMPLETED;
- memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
- sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT | SF_AUTO);
+ if (!(sf->sf_param & SP_DRYRUN)) {
+ memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
+ sf->sf_flags &= ~(SF_RECREATED | SF_INCONSISTENT |
+ SF_UPGRADE | SF_AUTO);
+ }
sf->sf_time_last_complete = sf->sf_time_last_checkpoint;
sf->sf_success_count++;
} else if (result == 0) {
sf->sf_run_time += cfs_duration_sec(cfs_time_current() + HALF_SEC -
scrub->os_time_last_checkpoint);
result = osd_scrub_file_store(scrub);
- if (result < 0)
- CERROR("%.16s: fail to osd_scrub_post, rc = %d\n",
- LDISKFS_SB(osd_scrub2sb(scrub))->s_es->s_volume_name,
- result);
- cfs_up_write(&scrub->os_rwsem);
+ up_write(&scrub->os_rwsem);
EXIT;
}
-#define SCRUB_NEXT_BREAK 1 /* exit current loop and process next group */
-#define SCRUB_NEXT_CONTINUE 2 /* skip current object and process next bit */
-#define SCRUB_NEXT_EXIT 3 /* exit all the loops */
-#define SCRUB_NEXT_WAIT 4 /* wait for free cache slot */
-#define SCRUB_NEXT_CRASH 5 /* simulate system crash during OI scrub */
-#define SCRUB_NEXT_FATAL 6 /* simulate failure during OI scrub */
-#define SCRUB_NEXT_NOSCRUB 7 /* new created object, no scrub on it */
-#define SCRUB_NEXT_IGIF 8 /* IGIF object */
+/* iteration engine */
struct osd_iit_param {
struct super_block *sb;
struct osd_idmap_cache *oic,
int *noslot, int rc);
-static inline int osd_scrub_has_window(struct osd_scrub *scrub,
- struct osd_otable_cache *ooc)
-{
- return scrub->os_pos_current < ooc->ooc_pos_preload + SCRUB_WINDOW_SIZE;
-}
-
static int osd_iit_next(struct osd_iit_param *param, __u32 *pos)
{
param->offset = ldiskfs_find_next_bit(param->bitmap->b_data,
}
}
-static int osd_iit_iget(struct osd_thread_info *info, struct osd_device *dev,
- struct lu_fid *fid, struct osd_inode_id *lid, __u32 pos,
- struct super_block *sb, struct inode **pinode)
+/**
+ * \retval SCRUB_NEXT_OSTOBJ_OLD: FID-on-OST
+ * \retval 0: FID-on-MDT
+ */
+static int osd_scrub_check_local_fldb(struct osd_thread_info *info,
+ struct osd_device *dev,
+ struct lu_fid *fid)
{
- struct inode *inode;
- int rc;
+ /* XXX: The initial OI scrub will scan the top level /O to generate
+ * a small local FLDB according to the <seq>. If the given FID
+ * is in the local FLDB, then it is FID-on-OST; otherwise it's
+ * quite possible for FID-on-MDT. */
+ if (dev->od_is_ost)
+ return SCRUB_NEXT_OSTOBJ_OLD;
+ else
+ return 0;
+}
- osd_id_gen(lid, pos, OSD_OII_NOGEN);
- inode = osd_iget_fid(info, dev, lid, fid);
- if (IS_ERR(inode)) {
- rc = PTR_ERR(inode);
- /* The inode may be removed after bitmap searching, or the
- * file is new created without inode initialized yet. */
- if (rc == -ENOENT || rc == -ESTALE)
+static int osd_scrub_get_fid(struct osd_thread_info *info,
+ struct osd_device *dev, struct inode *inode,
+ struct lu_fid *fid, bool scrub)
+{
+ struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
+ int rc;
+ bool has_lma = false;
+
+ rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
+ if (rc == 0) {
+ has_lma = true;
+ if (lma->lma_compat & LMAC_NOT_IN_OI ||
+ lma->lma_incompat & LMAI_AGENT)
return SCRUB_NEXT_CONTINUE;
- CERROR("%.16s: fail to read inode, ino# = %u, rc = %d\n",
- LDISKFS_SB(sb)->s_es->s_volume_name, pos, rc);
- return rc;
- }
+ *fid = lma->lma_self_fid;
+ if (!scrub)
+ return 0;
- *pinode = inode;
- return 0;
-}
+ if (lma->lma_compat & LMAC_FID_ON_OST)
+ return SCRUB_NEXT_OSTOBJ;
-static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev,
- struct osd_iit_param *param,
- struct osd_idmap_cache **oic, int noslot)
-{
- struct osd_scrub *scrub = &dev->od_scrub;
- struct ptlrpc_thread *thread = &scrub->os_thread;
- struct lu_fid *fid;
- struct osd_inode_id *lid;
- struct inode *inode;
- int rc;
+ if (fid_is_idif(fid))
+ return SCRUB_NEXT_OSTOBJ_OLD;
- if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) {
+ /* For local object. */
+ if (fid_is_internal(fid))
+ return 0;
+
+ /* For external visible MDT-object with non-normal FID. */
+ if (fid_is_namespace_visible(fid) && !fid_is_norm(fid))
+ return 0;
+
+ /* For the object with normal FID, it may be MDT-object,
+ * or may be 2.4 OST-object, need further distinguish.
+ * Fall through to next section. */
+ }
+
+ if (rc == -ENODATA || rc == 0) {
+ rc = osd_get_idif(info, inode, &info->oti_obj_dentry, fid);
+ if (rc == 0) {
+ if (scrub)
+ /* It is old 2.x (x <= 3) or 1.8 OST-object. */
+ rc = SCRUB_NEXT_OSTOBJ_OLD;
+ return rc;
+ }
+
+ if (rc > 0) {
+ if (!has_lma)
+ /* It is FID-on-OST, but we do not know how
+ * to generate its FID, ignore it directly. */
+ rc = SCRUB_NEXT_CONTINUE;
+ else
+ /* It is 2.4 OST-object. */
+ rc = SCRUB_NEXT_OSTOBJ_OLD;
+ return rc;
+ }
+
+ if (rc != -ENODATA)
+ return rc;
+
+ if (!has_lma) {
+ if (dev->od_scrub.os_convert_igif) {
+ lu_igif_build(fid, inode->i_ino,
+ inode->i_generation);
+ if (scrub)
+ rc = SCRUB_NEXT_NOLMA;
+ else
+ rc = 0;
+ } else {
+ /* It may be FID-on-OST, or may be FID for
+ * non-MDT0, anyway, we do not know how to
+ * generate its FID, ignore it directly. */
+ rc = SCRUB_NEXT_CONTINUE;
+ }
+ return rc;
+ }
+
+ /* For OI scrub case only: the object has LMA but has no ff
+ * (or ff crashed). It may be MDT-object, may be OST-object
+ * with crashed ff. The last check is local FLDB. */
+ rc = osd_scrub_check_local_fldb(info, dev, fid);
+ }
+
+ return rc;
+}
+
+static int osd_iit_iget(struct osd_thread_info *info, struct osd_device *dev,
+ struct lu_fid *fid, struct osd_inode_id *lid, __u32 pos,
+ struct super_block *sb, bool scrub)
+{
+ struct inode *inode;
+ int rc;
+ ENTRY;
+
+ /* Not handle the backend root object and agent parent object.
+ * They are neither visible to namespace nor have OI mappings. */
+ if (unlikely(pos == osd_sb(dev)->s_root->d_inode->i_ino ||
+ pos == osd_remote_parent_ino(dev)))
+ RETURN(SCRUB_NEXT_CONTINUE);
+
+ osd_id_gen(lid, pos, OSD_OII_NOGEN);
+ inode = osd_iget(info, dev, lid);
+ if (IS_ERR(inode)) {
+ rc = PTR_ERR(inode);
+ /* The inode may be removed after bitmap searching, or the
+ * file is new created without inode initialized yet. */
+ if (rc == -ENOENT || rc == -ESTALE)
+ RETURN(SCRUB_NEXT_CONTINUE);
+
+ CDEBUG(D_LFSCK, "%.16s: fail to read inode, ino# = %u: "
+ "rc = %d\n", LDISKFS_SB(sb)->s_es->s_volume_name,
+ pos, rc);
+ RETURN(rc);
+ }
+
+ if (scrub &&
+ ldiskfs_test_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB)) {
+ /* Only skip it for the first OI scrub accessing. */
+ ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
+ GOTO(put, rc = SCRUB_NEXT_NOSCRUB);
+ }
+
+ rc = osd_scrub_get_fid(info, dev, inode, fid, scrub);
+
+ GOTO(put, rc);
+
+put:
+ iput(inode);
+ return rc;
+}
+
+static int osd_scrub_next(struct osd_thread_info *info, struct osd_device *dev,
+ struct osd_iit_param *param,
+ struct osd_idmap_cache **oic, int noslot)
+{
+ struct osd_scrub *scrub = &dev->od_scrub;
+ struct ptlrpc_thread *thread = &scrub->os_thread;
+ struct lu_fid *fid;
+ struct osd_inode_id *lid;
+ int rc;
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_DELAY) && cfs_fail_val > 0) {
struct l_wait_info lwi;
lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val), NULL, NULL);
l_wait_event(thread->t_ctl_waitq,
- !cfs_list_empty(&scrub->os_inconsistent_items) ||
+ !list_empty(&scrub->os_inconsistent_items) ||
!thread_is_running(thread),
&lwi);
}
if (OBD_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_CRASH)) {
- cfs_spin_lock(&scrub->os_lock);
+ spin_lock(&scrub->os_lock);
thread_set_flags(thread, SVC_STOPPING);
- cfs_spin_unlock(&scrub->os_lock);
+ spin_unlock(&scrub->os_lock);
return SCRUB_NEXT_CRASH;
}
if (unlikely(!thread_is_running(thread)))
return SCRUB_NEXT_EXIT;
- if (!cfs_list_empty(&scrub->os_inconsistent_items)) {
+ if (!list_empty(&scrub->os_inconsistent_items)) {
struct osd_inconsistent_item *oii;
- oii = cfs_list_entry(scrub->os_inconsistent_items.next,
- struct osd_inconsistent_item, oii_list);
+ oii = list_entry(scrub->os_inconsistent_items.next,
+ struct osd_inconsistent_item, oii_list);
*oic = &oii->oii_cache;
scrub->os_in_prior = 1;
return 0;
fid = &(*oic)->oic_fid;
lid = &(*oic)->oic_lid;
rc = osd_iit_iget(info, dev, fid, lid,
- scrub->os_pos_current, param->sb, &inode);
- if (rc != 0)
- return rc;
-
- if (inode->i_state & I_LUSTRE_NOSCRUB) {
- /* Only skip it for the first OI scrub accessing. */
- inode->i_state &= ~I_LUSTRE_NOSCRUB;
- rc = SCRUB_NEXT_NOSCRUB;
- } else if (!fid_is_norm(fid)) {
- rc = SCRUB_NEXT_IGIF;
- }
-
- iput(inode);
+ scrub->os_pos_current, param->sb, true);
return rc;
}
struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
struct osd_scrub *scrub;
struct ptlrpc_thread *thread;
- struct inode *inode;
int rc;
rc = osd_iit_next(param, &ooc->ooc_pos_preload);
rc = osd_iit_iget(info, dev,
&ooc->ooc_cache[ooc->ooc_producer_idx].oic_fid,
&ooc->ooc_cache[ooc->ooc_producer_idx].oic_lid,
- ooc->ooc_pos_preload, param->sb, &inode);
+ ooc->ooc_pos_preload, param->sb, false);
/* If succeed, it needs to move forward; otherwise up layer LFSCK may
* ignore the failure, so it still need to skip the inode next time. */
ooc->ooc_pos_preload = param->gbase + ++(param->offset);
- if (rc == 0)
- iput(inode);
return rc;
}
+static inline int
+osd_scrub_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
+{
+ spin_lock(&scrub->os_lock);
+ if (osd_scrub_has_window(scrub, &it->ooi_cache) ||
+ !list_empty(&scrub->os_inconsistent_items) ||
+ it->ooi_waiting || !thread_is_running(&scrub->os_thread))
+ scrub->os_waiting = 0;
+ else
+ scrub->os_waiting = 1;
+ spin_unlock(&scrub->os_lock);
+
+ return !scrub->os_waiting;
+}
+
static int osd_scrub_exec(struct osd_thread_info *info, struct osd_device *dev,
struct osd_iit_param *param,
struct osd_idmap_cache *oic, int *noslot, int rc)
struct l_wait_info lwi = { 0 };
struct osd_scrub *scrub = &dev->od_scrub;
struct scrub_file *sf = &scrub->os_file;
- __u64 *items = NULL;
struct ptlrpc_thread *thread = &scrub->os_thread;
struct osd_otable_it *it = dev->od_otable_it;
struct osd_otable_cache *ooc = it ? &it->ooi_cache : NULL;
case SCRUB_NEXT_WAIT:
goto wait;
case SCRUB_NEXT_NOSCRUB:
- items = &sf->sf_items_noscrub;
- break;
- case SCRUB_NEXT_IGIF:
- items = &sf->sf_items_igif;
- break;
- }
-
- if (items != NULL) {
- cfs_down_write(&scrub->os_rwsem);
+ down_write(&scrub->os_rwsem);
scrub->os_new_checked++;
- (*items)++;
- cfs_up_write(&scrub->os_rwsem);
+ sf->sf_items_noscrub++;
+ up_write(&scrub->os_rwsem);
goto next;
}
- LASSERTF(rc <= 0, "unexpected rc = %d\n", rc);
-
- if (rc != 0)
- rc = osd_scrub_error(dev, &oic->oic_lid, rc);
- else
- rc = osd_scrub_check_update(info, dev, oic);
+ rc = osd_scrub_check_update(info, dev, oic, rc);
if (rc != 0)
return rc;
rc = osd_scrub_checkpoint(scrub);
if (rc != 0) {
- CERROR("%.16s: fail to checkpoint, pos = %u, rc = %d\n",
- LDISKFS_SB(param->sb)->s_es->s_volume_name,
+ CDEBUG(D_LFSCK, "%.16s: fail to checkpoint, pos = %u: "
+ "rc = %d\n", osd_scrub2name(scrub),
scrub->os_pos_current, rc);
/* Continue, as long as the scrub itself can go ahead. */
}
next:
scrub->os_pos_current = param->gbase + ++(param->offset);
- if (it != NULL && it->ooi_waiting &&
+
+wait:
+ if (it != NULL && it->ooi_waiting && ooc != NULL &&
ooc->ooc_pos_preload < scrub->os_pos_current) {
+ spin_lock(&scrub->os_lock);
it->ooi_waiting = 0;
- cfs_waitq_broadcast(&thread->t_ctl_waitq);
+ wake_up_all(&thread->t_ctl_waitq);
+ spin_unlock(&scrub->os_lock);
}
if (scrub->os_full_speed || rc == SCRUB_NEXT_CONTINUE)
return 0;
-wait:
- if (osd_scrub_has_window(scrub, ooc)) {
+ if (ooc != NULL && osd_scrub_has_window(scrub, ooc)) {
*noslot = 0;
return 0;
}
- scrub->os_waiting = 1;
- l_wait_event(thread->t_ctl_waitq,
- osd_scrub_has_window(scrub, ooc) ||
- !cfs_list_empty(&scrub->os_inconsistent_items) ||
- !thread_is_running(thread),
- &lwi);
- scrub->os_waiting = 0;
+ if (it != NULL)
+ l_wait_event(thread->t_ctl_waitq, osd_scrub_wakeup(scrub, it),
+ &lwi);
- if (osd_scrub_has_window(scrub, ooc))
+ if (ooc != NULL && osd_scrub_has_window(scrub, ooc))
*noslot = 0;
else
*noslot = 1;
ooc->ooc_producer_idx = (ooc->ooc_producer_idx + 1) &
~OSD_OTABLE_IT_CACHE_MASK;
}
- return rc > 0 ? 0 : rc;
-}
+ return rc > 0 ? 0 : rc;
+}
+
+#define SCRUB_IT_ALL 1
+#define SCRUB_IT_CRASH 2
+
+static int osd_inode_iteration(struct osd_thread_info *info,
+ struct osd_device *dev, __u32 max, bool preload)
+{
+ osd_iit_next_policy next;
+ osd_iit_exec_policy exec;
+ __u32 *pos;
+ __u32 *count;
+ struct osd_iit_param param;
+ __u32 limit;
+ int noslot = 0;
+ int rc;
+ ENTRY;
+
+ if (!preload) {
+ struct osd_scrub *scrub = &dev->od_scrub;
+
+ next = osd_scrub_next;
+ exec = osd_scrub_exec;
+ pos = &scrub->os_pos_current;
+ count = &scrub->os_new_checked;
+ } else {
+ struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
+
+ next = osd_preload_next;
+ exec = osd_preload_exec;
+ pos = &ooc->ooc_pos_preload;
+ count = &ooc->ooc_cached_items;
+ }
+ param.sb = osd_sb(dev);
+ limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count);
+
+ while (*pos <= limit && *count < max) {
+ struct osd_idmap_cache *oic = NULL;
+
+ param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb);
+ param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb);
+ param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
+ param.bitmap = ldiskfs_read_inode_bitmap(param.sb, param.bg);
+ if (param.bitmap == NULL) {
+ CDEBUG(D_LFSCK, "%.16s: fail to read bitmap for %u, "
+ "scrub will stop, urgent mode\n",
+ LDISKFS_SB(param.sb)->s_es->s_volume_name,
+ (__u32)param.bg);
+ RETURN(-EIO);
+ }
+
+ while (param.offset < LDISKFS_INODES_PER_GROUP(param.sb) &&
+ *count < max) {
+ rc = next(info, dev, ¶m, &oic, noslot);
+ switch (rc) {
+ case SCRUB_NEXT_BREAK:
+ goto next_group;
+ case SCRUB_NEXT_EXIT:
+ brelse(param.bitmap);
+ RETURN(0);
+ case SCRUB_NEXT_CRASH:
+ brelse(param.bitmap);
+ RETURN(SCRUB_IT_CRASH);
+ case SCRUB_NEXT_FATAL:
+ brelse(param.bitmap);
+ RETURN(-EINVAL);
+ }
+
+ rc = exec(info, dev, ¶m, oic, &noslot, rc);
+ if (rc != 0) {
+ brelse(param.bitmap);
+ RETURN(rc);
+ }
+ }
+
+next_group:
+ brelse(param.bitmap);
+ }
+
+ if (*pos > limit)
+ RETURN(SCRUB_IT_ALL);
+ RETURN(0);
+}
+
+static int osd_otable_it_preload(const struct lu_env *env,
+ struct osd_otable_it *it)
+{
+ struct osd_device *dev = it->ooi_dev;
+ struct osd_scrub *scrub = &dev->od_scrub;
+ struct osd_otable_cache *ooc = &it->ooi_cache;
+ int rc;
+ ENTRY;
+
+ rc = osd_inode_iteration(osd_oti_get(env), dev,
+ OSD_OTABLE_IT_CACHE_SIZE, true);
+ if (rc == SCRUB_IT_ALL)
+ it->ooi_all_cached = 1;
+
+ if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
+ spin_lock(&scrub->os_lock);
+ scrub->os_waiting = 0;
+ wake_up_all(&scrub->os_thread.t_ctl_waitq);
+ spin_unlock(&scrub->os_lock);
+ }
+
+ RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
+}
+
+static int osd_scrub_main(void *args)
+{
+ struct lu_env env;
+ struct osd_device *dev = (struct osd_device *)args;
+ struct osd_scrub *scrub = &dev->od_scrub;
+ struct ptlrpc_thread *thread = &scrub->os_thread;
+ int rc;
+ ENTRY;
+
+ rc = lu_env_init(&env, LCT_LOCAL);
+ if (rc != 0) {
+ CDEBUG(D_LFSCK, "%.16s: OI scrub fail to init env: rc = %d\n",
+ osd_scrub2name(scrub), rc);
+ GOTO(noenv, rc);
+ }
+
+ rc = osd_scrub_prep(dev);
+ if (rc != 0) {
+ CDEBUG(D_LFSCK, "%.16s: OI scrub fail to scrub prep: rc = %d\n",
+ osd_scrub2name(scrub), rc);
+ GOTO(out, rc);
+ }
+
+ if (!scrub->os_full_speed) {
+ struct l_wait_info lwi = { 0 };
+ struct osd_otable_it *it = dev->od_otable_it;
+ struct osd_otable_cache *ooc = &it->ooi_cache;
+
+ l_wait_event(thread->t_ctl_waitq,
+ it->ooi_user_ready || !thread_is_running(thread),
+ &lwi);
+ if (unlikely(!thread_is_running(thread)))
+ GOTO(post, rc = 0);
+
+ scrub->os_pos_current = ooc->ooc_pos_preload;
+ }
+
+ CDEBUG(D_LFSCK, "%.16s: OI scrub start, flags = 0x%x, pos = %u\n",
+ osd_scrub2name(scrub), scrub->os_start_flags,
+ scrub->os_pos_current);
+
+ rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, false);
+ if (unlikely(rc == SCRUB_IT_CRASH))
+ GOTO(out, rc = -EINVAL);
+ GOTO(post, rc);
+
+post:
+ osd_scrub_post(scrub, rc);
+ CDEBUG(D_LFSCK, "%.16s: OI scrub: stop, pos = %u: rc = %d\n",
+ osd_scrub2name(scrub), scrub->os_pos_current, rc);
+
+out:
+ while (!list_empty(&scrub->os_inconsistent_items)) {
+ struct osd_inconsistent_item *oii;
+
+ oii = list_entry(scrub->os_inconsistent_items.next,
+ struct osd_inconsistent_item, oii_list);
+ list_del_init(&oii->oii_list);
+ OBD_FREE_PTR(oii);
+ }
+ lu_env_fini(&env);
+
+noenv:
+ spin_lock(&scrub->os_lock);
+ thread_set_flags(thread, SVC_STOPPED);
+ wake_up_all(&thread->t_ctl_waitq);
+ spin_unlock(&scrub->os_lock);
+ return rc;
+}
+
+/* initial OI scrub */
+
+typedef int (*scandir_t)(struct osd_thread_info *, struct osd_device *,
+ struct dentry *, filldir_t filldir);
+
+static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
+ loff_t offset, __u64 ino, unsigned d_type);
+static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
+ loff_t offset, __u64 ino, unsigned d_type);
+static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
+ loff_t offset, __u64 ino, unsigned d_type);
+
+static int
+osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
+ struct dentry *dentry, filldir_t filldir);
+static int
+osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
+ struct dentry *dentry, filldir_t filldir);
+
+static int
+osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
+ struct dentry *dentry, filldir_t filldir);
+
+enum osd_lf_flags {
+ OLF_SCAN_SUBITEMS = 0x0001,
+ OLF_HIDE_FID = 0x0002,
+ OLF_SHOW_NAME = 0x0004,
+ OLF_NO_OI = 0x0008,
+};
+
+struct osd_lf_map {
+ char *olm_name;
+ struct lu_fid olm_fid;
+ __u16 olm_flags;
+ scandir_t olm_scandir;
+ filldir_t olm_filldir;
+};
+
+/* Add the new introduced local files in the list in the future. */
+static const struct osd_lf_map osd_lf_maps[] = {
+ /* CATALOGS */
+ { CATLIST, { FID_SEQ_LOCAL_FILE, LLOG_CATALOGS_OID, 0 }, OLF_SHOW_NAME,
+ NULL, NULL },
+
+ /* CONFIGS */
+ { MOUNT_CONFIGS_DIR, { FID_SEQ_LOCAL_FILE, MGS_CONFIGS_OID, 0 },
+ OLF_SCAN_SUBITEMS, osd_ios_general_scan,
+ osd_ios_varfid_fill },
+
+ /* NIDTBL_VERSIONS */
+ { MGS_NIDTBL_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
+ osd_ios_general_scan, osd_ios_varfid_fill },
+
+ /* PENDING */
+ { "PENDING", { 0, 0, 0 }, 0, NULL, NULL },
+
+ /* ROOT */
+ { "ROOT", { FID_SEQ_ROOT, 1, 0 },
+ OLF_SCAN_SUBITEMS | OLF_HIDE_FID, osd_ios_ROOT_scan, NULL },
+
+ /* changelog_catalog */
+ { CHANGELOG_CATALOG, { 0, 0, 0 }, 0, NULL, NULL },
+
+ /* changelog_users */
+ { CHANGELOG_USERS, { 0, 0, 0 }, 0, NULL, NULL },
+
+ /* fld */
+ { "fld", { FID_SEQ_LOCAL_FILE, FLD_INDEX_OID, 0 }, OLF_SHOW_NAME,
+ NULL, NULL },
+
+ /* last_rcvd */
+ { LAST_RCVD, { FID_SEQ_LOCAL_FILE, LAST_RECV_OID, 0 }, OLF_SHOW_NAME,
+ NULL, NULL },
+
+ /* lfsck_bookmark */
+ { "lfsck_bookmark", { 0, 0, 0 }, 0, NULL, NULL },
+
+ /* lov_objid */
+ { LOV_OBJID, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OID, 0 }, OLF_SHOW_NAME,
+ NULL, NULL },
+
+ /* lov_objseq */
+ { LOV_OBJSEQ, { FID_SEQ_LOCAL_FILE, MDD_LOV_OBJ_OSEQ, 0 },
+ OLF_SHOW_NAME, NULL, NULL },
+
+ /* quota_master */
+ { QMT_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
+ osd_ios_general_scan, osd_ios_varfid_fill },
+
+ /* quota_slave */
+ { QSD_DIR, { 0, 0, 0 }, OLF_SCAN_SUBITEMS,
+ osd_ios_general_scan, osd_ios_varfid_fill },
+
+ /* seq_ctl */
+ { "seq_ctl", { FID_SEQ_LOCAL_FILE, FID_SEQ_CTL_OID, 0 },
+ OLF_SHOW_NAME, NULL, NULL },
+
+ /* seq_srv */
+ { "seq_srv", { FID_SEQ_LOCAL_FILE, FID_SEQ_SRV_OID, 0 },
+ OLF_SHOW_NAME, NULL, NULL },
+
+ /* health_check */
+ { HEALTH_CHECK, { FID_SEQ_LOCAL_FILE, OFD_HEALTH_CHECK_OID, 0 },
+ OLF_SHOW_NAME, NULL, NULL },
+
+ /* lfsck_namespace */
+ { "lfsck_namespace", { 0, 0, 0 }, 0, NULL, NULL },
+
+ /* OBJECTS, upgrade from old device */
+ { OBJECTS, { 0, 0, 0 }, OLF_SCAN_SUBITEMS, osd_ios_OBJECTS_scan, NULL },
+
+ /* lquota_v2.user, upgrade from old device */
+ { "lquota_v2.user", { 0, 0, 0 }, 0, NULL, NULL },
+
+ /* lquota_v2.group, upgrade from old device */
+ { "lquota_v2.group", { 0, 0, 0 }, 0, NULL, NULL },
+
+ /* LAST_GROUP, upgrade from old device */
+ { "LAST_GROUP", { FID_SEQ_LOCAL_FILE, OFD_LAST_GROUP_OID, 0 },
+ OLF_SHOW_NAME, NULL, NULL },
+
+ /* SLAVE_LOG, llog for destroy slave stripes of striped dir */
+ { "SLAVE_LOG", { FID_SEQ_LOCAL_FILE, SLAVE_LLOG_CATALOGS_OID, 0 },
+ OLF_SHOW_NAME, NULL, NULL },
+
+ /* lost+found */
+ { "lost+found", { FID_SEQ_LOCAL_FILE, OSD_LPF_OID, 0 },
+ OLF_SCAN_SUBITEMS, osd_ios_general_scan, osd_ios_lf_fill },
+
+ { NULL, { 0, 0, 0 }, 0, NULL, NULL }
+};
+
+/* Add the new introduced files under .lustre/ in the list in the future. */
+static const struct osd_lf_map osd_dl_maps[] = {
+ /* .lustre/fid */
+ { "fid", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_OBF, 0 }, 0,
+ NULL, NULL },
+
+ /* .lustre/lost+found */
+ { "lost+found", { FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE_LPF, 0 }, 0,
+ NULL, NULL },
+
+ { NULL, { 0, 0, 0 }, 0, NULL, NULL }
+};
+
+struct osd_ios_item {
+ struct list_head oii_list;
+ struct dentry *oii_dentry;
+ scandir_t oii_scandir;
+ filldir_t oii_filldir;
+};
+
+struct osd_ios_filldir_buf {
+#ifdef HAVE_DIR_CONTEXT
+ /* please keep it as first member */
+ struct dir_context ctx;
+#endif
+ struct osd_thread_info *oifb_info;
+ struct osd_device *oifb_dev;
+ struct dentry *oifb_dentry;
+};
+
+static inline struct dentry *
+osd_ios_lookup_one_len(const char *name, struct dentry *parent, int namelen)
+{
+ struct dentry *dentry;
+
+ dentry = ll_lookup_one_len(name, parent, namelen);
+ if (!IS_ERR(dentry) && dentry->d_inode == NULL) {
+ dput(dentry);
+ return ERR_PTR(-ENOENT);
+ }
+
+ return dentry;
+}
+
+static int
+osd_ios_new_item(struct osd_device *dev, struct dentry *dentry,
+ scandir_t scandir, filldir_t filldir)
+{
+ struct osd_ios_item *item;
+ ENTRY;
+
+ OBD_ALLOC_PTR(item);
+ if (item == NULL)
+ RETURN(-ENOMEM);
+
+ INIT_LIST_HEAD(&item->oii_list);
+ item->oii_dentry = dget(dentry);
+ item->oii_scandir = scandir;
+ item->oii_filldir = filldir;
+ list_add_tail(&item->oii_list, &dev->od_ios_list);
+
+ RETURN(0);
+}
+
+/**
+ * osd_ios_scan_one() - check/fix LMA FID and OI entry for one inode
+ *
+ * The passed \a inode's \a fid is verified against the LMA FID. If the \a fid
+ * is NULL or is empty the IGIF FID is used. The FID is verified in the OI to
+ * reference the inode, or fixed if it is missing or references another inode.
+ */
+static int
+osd_ios_scan_one(struct osd_thread_info *info, struct osd_device *dev,
+ struct inode *inode, const struct lu_fid *fid, int flags)
+{
+ struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
+ struct osd_inode_id *id = &info->oti_id;
+ struct osd_inode_id *id2 = &info->oti_id2;
+ struct osd_scrub *scrub = &dev->od_scrub;
+ struct scrub_file *sf = &scrub->os_file;
+ struct lu_fid tfid;
+ int rc;
+ ENTRY;
+
+ rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
+ if (rc != 0 && rc != -ENODATA) {
+ CDEBUG(D_LFSCK, "%s: fail to get lma for init OI scrub: "
+ "rc = %d\n", osd_name(dev), rc);
+
+ RETURN(rc);
+ }
+
+ osd_id_gen(id, inode->i_ino, inode->i_generation);
+ if (rc == -ENODATA) {
+ if (fid == NULL || fid_is_zero(fid) || flags & OLF_HIDE_FID)
+ lu_igif_build(&tfid, inode->i_ino, inode->i_generation);
+ else
+ tfid = *fid;
+ rc = osd_ea_fid_set(info, inode, &tfid, 0, 0);
+ if (rc != 0) {
+ CDEBUG(D_LFSCK, "%s: fail to set LMA for init OI "
+ "scrub: rc = %d\n", osd_name(dev), rc);
+
+ RETURN(rc);
+ }
+ } else {
+ if (lma->lma_compat & LMAC_NOT_IN_OI)
+ RETURN(0);
+
+ tfid = lma->lma_self_fid;
+ }
+
+ rc = osd_oi_lookup(info, dev, &tfid, id2, 0);
+ if (rc != 0) {
+ if (rc != -ENOENT)
+ RETURN(rc);
+
+ rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
+ DTO_INDEX_INSERT, true, 0);
+ if (rc > 0)
+ rc = 0;
+
+ RETURN(rc);
+ }
+
+ if (osd_id_eq_strict(id, id2))
+ RETURN(0);
+
+ if (!(sf->sf_flags & SF_INCONSISTENT)) {
+ osd_scrub_file_reset(scrub,
+ LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
+ SF_INCONSISTENT);
+ rc = osd_scrub_file_store(scrub);
+ if (rc != 0)
+ RETURN(rc);
+ }
+
+ rc = osd_scrub_refresh_mapping(info, dev, &tfid, id,
+ DTO_INDEX_UPDATE, true, 0);
+ if (rc > 0)
+ rc = 0;
+
+ RETURN(rc);
+}
+
+/**
+ * It scans the /lost+found, and for the OST-object (with filter_fid
+ * or filter_fid_old), move them back to its proper /O/<seq>/d<x>.
+ */
+static int osd_ios_lf_fill(void *buf, const char *name, int namelen,
+ loff_t offset, __u64 ino, unsigned d_type)
+{
+ struct osd_ios_filldir_buf *fill_buf = buf;
+ struct osd_thread_info *info = fill_buf->oifb_info;
+ struct osd_device *dev = fill_buf->oifb_dev;
+ struct lu_fid *fid = &info->oti_fid;
+ struct osd_scrub *scrub = &dev->od_scrub;
+ struct dentry *parent = fill_buf->oifb_dentry;
+ struct dentry *child;
+ struct inode *dir = parent->d_inode;
+ struct inode *inode;
+ int rc;
+ ENTRY;
+
+ /* skip any '.' started names */
+ if (name[0] == '.')
+ RETURN(0);
+
+ scrub->os_lf_scanned++;
+ child = osd_ios_lookup_one_len(name, parent, namelen);
+ if (IS_ERR(child)) {
+ CDEBUG(D_LFSCK, "%s: cannot lookup child '%.*s': rc = %d\n",
+ osd_name(dev), namelen, name, (int)PTR_ERR(child));
+ RETURN(0);
+ }
+
+ inode = child->d_inode;
+ if (S_ISDIR(inode->i_mode)) {
+ rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
+ osd_ios_lf_fill);
+ if (rc != 0)
+ CDEBUG(D_LFSCK, "%s: cannot add child '%.*s': "
+ "rc = %d\n", osd_name(dev), namelen, name, rc);
+ GOTO(put, rc);
+ }
+
+ if (!S_ISREG(inode->i_mode))
+ GOTO(put, rc = 0);
+
+ rc = osd_scrub_get_fid(info, dev, inode, fid, true);
+ if (rc == SCRUB_NEXT_OSTOBJ || rc == SCRUB_NEXT_OSTOBJ_OLD) {
+ rc = osd_obj_map_recover(info, dev, dir, child, fid);
+ if (rc == 0) {
+ CDEBUG(D_LFSCK, "recovered '%.*s' ["DFID"] from "
+ "/lost+found.\n", namelen, name, PFID(fid));
+ scrub->os_lf_repaired++;
+ } else {
+ CDEBUG(D_LFSCK, "%s: cannot rename for '%.*s' "
+ DFID": rc = %d\n",
+ osd_name(dev), namelen, name, PFID(fid), rc);
+ }
+ }
+
+ /* XXX: For MDT-objects, we can move them from /lost+found to namespace
+ * visible place, such as the /ROOT/.lustre/lost+found, then LFSCK
+ * can process them in furtuer. */
+
+ GOTO(put, rc);
+
+put:
+ if (rc < 0)
+ scrub->os_lf_failed++;
+ dput(child);
+ /* skip the failure to make the scanning to continue. */
+ return 0;
+}
+
+static int osd_ios_varfid_fill(void *buf, const char *name, int namelen,
+ loff_t offset, __u64 ino, unsigned d_type)
+{
+ struct osd_ios_filldir_buf *fill_buf = buf;
+ struct osd_device *dev = fill_buf->oifb_dev;
+ struct dentry *child;
+ int rc;
+ ENTRY;
+
+ /* skip any '.' started names */
+ if (name[0] == '.')
+ RETURN(0);
+
+ child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
+ if (IS_ERR(child))
+ RETURN(PTR_ERR(child));
+
+ rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
+ NULL, 0);
+ if (rc == 0 && S_ISDIR(child->d_inode->i_mode))
+ rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
+ osd_ios_varfid_fill);
+ dput(child);
+
+ RETURN(rc);
+}
+
+static int osd_ios_dl_fill(void *buf, const char *name, int namelen,
+ loff_t offset, __u64 ino, unsigned d_type)
+{
+ struct osd_ios_filldir_buf *fill_buf = buf;
+ struct osd_device *dev = fill_buf->oifb_dev;
+ const struct osd_lf_map *map;
+ struct dentry *child;
+ int rc = 0;
+ ENTRY;
+
+ /* skip any '.' started names */
+ if (name[0] == '.')
+ RETURN(0);
+
+ for (map = osd_dl_maps; map->olm_name != NULL; map++) {
+ if (strlen(map->olm_name) != namelen)
+ continue;
+
+ if (strncmp(map->olm_name, name, namelen) == 0)
+ break;
+ }
+
+ if (map->olm_name == NULL)
+ RETURN(0);
+
+ child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
+ if (IS_ERR(child))
+ RETURN(PTR_ERR(child));
+
+ rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
+ &map->olm_fid, map->olm_flags);
+ dput(child);
+
+ RETURN(rc);
+}
+
+static int osd_ios_root_fill(void *buf, const char *name, int namelen,
+ loff_t offset, __u64 ino, unsigned d_type)
+{
+ struct osd_ios_filldir_buf *fill_buf = buf;
+ struct osd_device *dev = fill_buf->oifb_dev;
+ const struct osd_lf_map *map;
+ struct dentry *child;
+ int rc = 0;
+ ENTRY;
+
+ /* skip any '.' started names */
+ if (name[0] == '.')
+ RETURN(0);
+
+ for (map = osd_lf_maps; map->olm_name != NULL; map++) {
+ if (strlen(map->olm_name) != namelen)
+ continue;
+
+ if (strncmp(map->olm_name, name, namelen) == 0)
+ break;
+ }
+
+ if (map->olm_name == NULL)
+ RETURN(0);
+
+ child = osd_ios_lookup_one_len(name, fill_buf->oifb_dentry, namelen);
+ if (IS_ERR(child))
+ RETURN(PTR_ERR(child));
+
+ if (!(map->olm_flags & OLF_NO_OI))
+ rc = osd_ios_scan_one(fill_buf->oifb_info, dev, child->d_inode,
+ &map->olm_fid, map->olm_flags);
+ if (rc == 0 && map->olm_flags & OLF_SCAN_SUBITEMS)
+ rc = osd_ios_new_item(dev, child, map->olm_scandir,
+ map->olm_filldir);
+ dput(child);
+
+ RETURN(rc);
+}
+
+static int
+osd_ios_general_scan(struct osd_thread_info *info, struct osd_device *dev,
+ struct dentry *dentry, filldir_t filldir)
+{
+ struct osd_ios_filldir_buf buf = {
+#ifdef HAVE_DIR_CONTEXT
+ .ctx.actor = filldir,
+#endif
+ .oifb_info = info,
+ .oifb_dev = dev,
+ .oifb_dentry = dentry };
+ struct file *filp = &info->oti_it_ea.oie_file;
+ struct inode *inode = dentry->d_inode;
+ const struct file_operations *fops = inode->i_fop;
+ int rc;
+ ENTRY;
+
+ LASSERT(filldir != NULL);
+
+ filp->f_pos = 0;
+ filp->f_dentry = dentry;
+ filp->f_mode = FMODE_64BITHASH;
+ filp->f_mapping = inode->i_mapping;
+ filp->f_op = fops;
+ filp->private_data = NULL;
+ set_file_inode(filp, inode);
+
+#ifdef HAVE_DIR_CONTEXT
+ buf.ctx.pos = filp->f_pos;
+ rc = fops->iterate(filp, &buf.ctx);
+ filp->f_pos = buf.ctx.pos;
+#else
+ rc = fops->readdir(filp, &buf, filldir);
+#endif
+ fops->release(inode, filp);
+
+ RETURN(rc);
+}
+
+static int
+osd_ios_ROOT_scan(struct osd_thread_info *info, struct osd_device *dev,
+ struct dentry *dentry, filldir_t filldir)
+{
+ struct osd_scrub *scrub = &dev->od_scrub;
+ struct scrub_file *sf = &scrub->os_file;
+ struct dentry *child;
+ int rc;
+ ENTRY;
+
+ /* It is existing MDT0 device. We only allow the case of object without
+ * LMA to happen on the MDT0, which is usually for old 1.8 MDT. Then we
+ * can generate IGIF mode FID for the object and related OI mapping. If
+ * it is on other MDTs, then becuase file-level backup/restore, related
+ * OI mapping may be invalid already, we do not know which is the right
+ * FID for the object. We only allow IGIF objects to reside on the MDT0.
+ *
+ * XXX: For the case of object on non-MDT0 device with neither LMA nor
+ * "fid" xattr, then something crashed. We cannot re-generate the
+ * FID directly, instead, the OI scrub will scan the OI structure
+ * and try to re-generate the LMA from the OI mapping. But if the
+ * OI mapping crashed or lost also, then we have to give up under
+ * double failure cases. */
+ scrub->os_convert_igif = 1;
+ child = osd_ios_lookup_one_len(dot_lustre_name, dentry,
+ strlen(dot_lustre_name));
+ if (IS_ERR(child)) {
+ rc = PTR_ERR(child);
+ if (rc == -ENOENT) {
+ /* It is 1.8 MDT device. */
+ if (!(sf->sf_flags & SF_UPGRADE)) {
+ osd_scrub_file_reset(scrub,
+ LDISKFS_SB(osd_sb(dev))->s_es->s_uuid,
+ SF_UPGRADE);
+ sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
+ rc = osd_scrub_file_store(scrub);
+ } else {
+ rc = 0;
+ }
+ }
+ } else {
+ /* For lustre-2.x (x <= 3), the ".lustre" has NO FID-in-LMA,
+ * so the client will get IGIF for the ".lustre" object when
+ * the MDT restart.
+ *
+ * From the OI scrub view, when the MDT upgrade to Lustre-2.4,
+ * it does not know whether there are some old clients cached
+ * the ".lustre" IGIF during the upgrading. Two choices:
+ *
+ * 1) Generate IGIF-in-LMA and IGIF-in-OI for the ".lustre".
+ * It will allow the old connected clients to access the
+ * ".lustre" with cached IGIF. But it will cause others
+ * on the MDT failed to check "fid_is_dot_lustre()".
+ *
+ * 2) Use fixed FID {FID_SEQ_DOT_LUSTRE, FID_OID_DOT_LUSTRE, 0}
+ * for ".lustre" in spite of whether there are some clients
+ * cached the ".lustre" IGIF or not. It enables the check
+ * "fid_is_dot_lustre()" on the MDT, although it will cause
+ * that the old connected clients cannot access the ".lustre"
+ * with the cached IGIF.
+ *
+ * Usually, it is rare case for the old connected clients
+ * to access the ".lustre" with cached IGIF. So we prefer
+ * to the solution 2). */
+ rc = osd_ios_scan_one(info, dev, child->d_inode,
+ &LU_DOT_LUSTRE_FID, 0);
+ if (rc == 0)
+ rc = osd_ios_new_item(dev, child, osd_ios_general_scan,
+ osd_ios_dl_fill);
+ dput(child);
+ }
-#define SCRUB_IT_ALL 1
-#define SCRUB_IT_CRASH 2
+ RETURN(rc);
+}
-static int osd_inode_iteration(struct osd_thread_info *info,
- struct osd_device *dev, __u32 max, int preload)
+static int
+osd_ios_OBJECTS_scan(struct osd_thread_info *info, struct osd_device *dev,
+ struct dentry *dentry, filldir_t filldir)
{
- osd_iit_next_policy next;
- osd_iit_exec_policy exec;
- __u32 *pos;
- __u32 *count;
- struct osd_iit_param param;
- __u32 limit;
- int noslot = 0;
- int rc;
+ struct osd_scrub *scrub = &dev->od_scrub;
+ struct scrub_file *sf = &scrub->os_file;
+ struct dentry *child;
+ int rc;
ENTRY;
- if (preload == 0) {
- struct osd_scrub *scrub = &dev->od_scrub;
+ if (unlikely(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID)) {
+ sf->sf_internal_flags &= ~SIF_NO_HANDLE_OLD_FID;
+ rc = osd_scrub_file_store(scrub);
+ if (rc != 0)
+ RETURN(rc);
+ }
- next = osd_scrub_next;
- exec = osd_scrub_exec;
- pos = &scrub->os_pos_current;
- count = &scrub->os_new_checked;
+ child = osd_ios_lookup_one_len(ADMIN_USR, dentry, strlen(ADMIN_USR));
+ if (!IS_ERR(child)) {
+ rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
+ dput(child);
} else {
- struct osd_otable_cache *ooc = &dev->od_otable_it->ooi_cache;
+ rc = PTR_ERR(child);
+ }
- next = osd_preload_next;
- exec = osd_preload_exec;
- pos = &ooc->ooc_pos_preload;
- count = &ooc->ooc_cached_items;
+ if (rc != 0 && rc != -ENOENT)
+ RETURN(rc);
+
+ child = osd_ios_lookup_one_len(ADMIN_GRP, dentry, strlen(ADMIN_GRP));
+ if (!IS_ERR(child)) {
+ rc = osd_ios_scan_one(info, dev, child->d_inode, NULL, 0);
+ dput(child);
+ } else {
+ rc = PTR_ERR(child);
}
- param.sb = osd_sb(dev);
- limit = le32_to_cpu(LDISKFS_SB(param.sb)->s_es->s_inodes_count);
- while (*pos <= limit && *count < max) {
- struct osd_idmap_cache *oic = NULL;
+ if (rc == -ENOENT)
+ rc = 0;
- param.bg = (*pos - 1) / LDISKFS_INODES_PER_GROUP(param.sb);
- param.offset = (*pos - 1) % LDISKFS_INODES_PER_GROUP(param.sb);
- param.gbase = 1 + param.bg * LDISKFS_INODES_PER_GROUP(param.sb);
- param.bitmap = ldiskfs_read_inode_bitmap(param.sb, param.bg);
- if (param.bitmap == NULL) {
- CERROR("%.16s: fail to read bitmap for %u, "
- "scrub will stop, urgent mode\n",
- LDISKFS_SB(param.sb)->s_es->s_volume_name,
- (__u32)param.bg);
- RETURN(-EIO);
- }
+ RETURN(rc);
+}
- while (param.offset < LDISKFS_INODES_PER_GROUP(param.sb) &&
- *count < max) {
- rc = next(info, dev, ¶m, &oic, noslot);
- switch (rc) {
- case SCRUB_NEXT_BREAK:
- goto next_group;
- case SCRUB_NEXT_EXIT:
- brelse(param.bitmap);
- RETURN(0);
- case SCRUB_NEXT_CRASH:
- brelse(param.bitmap);
- RETURN(SCRUB_IT_CRASH);
- case SCRUB_NEXT_FATAL:
- brelse(param.bitmap);
- RETURN(-EINVAL);
- }
+static int osd_initial_OI_scrub(struct osd_thread_info *info,
+ struct osd_device *dev)
+{
+ struct osd_ios_item *item = NULL;
+ scandir_t scandir = osd_ios_general_scan;
+ filldir_t filldir = osd_ios_root_fill;
+ struct dentry *dentry = osd_sb(dev)->s_root;
+ const struct osd_lf_map *map = osd_lf_maps;
+ int rc;
+ ENTRY;
- rc = exec(info, dev, ¶m, oic, &noslot, rc);
- if (rc != 0) {
- brelse(param.bitmap);
- RETURN(rc);
- }
+ /* Lookup IGIF in OI by force for initial OI scrub. */
+ dev->od_igif_inoi = 1;
+
+ while (1) {
+ rc = scandir(info, dev, dentry, filldir);
+ if (item != NULL) {
+ dput(item->oii_dentry);
+ OBD_FREE_PTR(item);
}
-next_group:
- brelse(param.bitmap);
- }
+ if (rc != 0)
+ break;
- if (*pos > limit)
- RETURN(SCRUB_IT_ALL);
- RETURN(0);
-}
+ if (list_empty(&dev->od_ios_list))
+ break;
-static int osd_scrub_main(void *args)
-{
- struct lu_env env;
- struct osd_device *dev = (struct osd_device *)args;
- struct osd_scrub *scrub = &dev->od_scrub;
- struct ptlrpc_thread *thread = &scrub->os_thread;
- struct super_block *sb = osd_sb(dev);
- int rc;
- ENTRY;
+ item = list_entry(dev->od_ios_list.next,
+ struct osd_ios_item, oii_list);
+ list_del_init(&item->oii_list);
- cfs_daemonize("OI_scrub");
- rc = lu_env_init(&env, LCT_DT_THREAD);
- if (rc != 0) {
- CERROR("%.16s: OI scrub, fail to init env, rc = %d\n",
- LDISKFS_SB(sb)->s_es->s_volume_name, rc);
- GOTO(noenv, rc);
+ LASSERT(item->oii_scandir != NULL);
+ scandir = item->oii_scandir;
+ filldir = item->oii_filldir;
+ dentry = item->oii_dentry;
}
- rc = osd_scrub_prep(dev);
- if (rc != 0) {
- CERROR("%.16s: OI scrub, fail to scrub prep, rc = %d\n",
- LDISKFS_SB(sb)->s_es->s_volume_name, rc);
- GOTO(out, rc);
+ while (!list_empty(&dev->od_ios_list)) {
+ item = list_entry(dev->od_ios_list.next,
+ struct osd_ios_item, oii_list);
+ list_del_init(&item->oii_list);
+ dput(item->oii_dentry);
+ OBD_FREE_PTR(item);
}
- if (!scrub->os_full_speed) {
- struct l_wait_info lwi = { 0 };
- struct osd_otable_it *it = dev->od_otable_it;
- struct osd_otable_cache *ooc = &it->ooi_cache;
+ if (rc != 0)
+ RETURN(rc);
- l_wait_event(thread->t_ctl_waitq,
- it->ooi_user_ready || !thread_is_running(thread),
- &lwi);
- if (unlikely(!thread_is_running(thread)))
- GOTO(post, rc = 0);
+ /* There maybe the case that the object has been removed, but its OI
+ * mapping is still in the OI file, such as the "CATALOGS" after MDT
+ * file-level backup/restore. So here cleanup the stale OI mappings. */
+ while (map->olm_name != NULL) {
+ struct dentry *child;
- LASSERT(scrub->os_pos_current >= ooc->ooc_pos_preload);
- scrub->os_pos_current = ooc->ooc_pos_preload;
- }
+ if (fid_is_zero(&map->olm_fid)) {
+ map++;
+ continue;
+ }
- CDEBUG(D_LFSCK, "OI scrub: flags = 0x%x, pos = %u\n",
- scrub->os_start_flags, scrub->os_pos_current);
+ child = osd_ios_lookup_one_len(map->olm_name,
+ osd_sb(dev)->s_root,
+ strlen(map->olm_name));
+ if (!IS_ERR(child))
+ dput(child);
+ else if (PTR_ERR(child) == -ENOENT)
+ osd_scrub_refresh_mapping(info, dev, &map->olm_fid,
+ NULL, DTO_INDEX_DELETE,
+ true, 0);
+ map++;
+ }
- rc = osd_inode_iteration(osd_oti_get(&env), dev, ~0U, 0);
- if (unlikely(rc == SCRUB_IT_CRASH))
- GOTO(out, rc = -EINVAL);
- GOTO(post, rc);
+ RETURN(0);
+}
-post:
- osd_scrub_post(scrub, rc);
- CDEBUG(D_LFSCK, "OI scrub: stop, rc = %d, pos = %u\n",
- rc, scrub->os_pos_current);
+char *osd_lf_fid2name(const struct lu_fid *fid)
+{
+ const struct osd_lf_map *map = osd_lf_maps;
-out:
- while (!cfs_list_empty(&scrub->os_inconsistent_items)) {
- struct osd_inconsistent_item *oii;
+ while (map->olm_name != NULL) {
+ if (!lu_fid_eq(fid, &map->olm_fid)) {
+ map++;
+ continue;
+ }
- oii = cfs_list_entry(scrub->os_inconsistent_items.next,
- struct osd_inconsistent_item, oii_list);
- cfs_list_del_init(&oii->oii_list);
- OBD_FREE_PTR(oii);
+ if (map->olm_flags & OLF_SHOW_NAME)
+ return map->olm_name;
+ else
+ return "";
}
- lu_env_fini(&env);
-noenv:
- cfs_spin_lock(&scrub->os_lock);
- thread_set_flags(thread, SVC_STOPPED);
- cfs_waitq_broadcast(&thread->t_ctl_waitq);
- cfs_spin_unlock(&scrub->os_lock);
- return rc;
+ return NULL;
}
+/* OI scrub start/stop */
+
static int do_osd_scrub_start(struct osd_device *dev, __u32 flags)
{
struct osd_scrub *scrub = &dev->od_scrub;
struct ptlrpc_thread *thread = &scrub->os_thread;
struct l_wait_info lwi = { 0 };
+ struct task_struct *task;
int rc;
ENTRY;
again:
/* os_lock: sync status between stop and scrub thread */
- cfs_spin_lock(&scrub->os_lock);
+ spin_lock(&scrub->os_lock);
if (thread_is_running(thread)) {
- cfs_spin_unlock(&scrub->os_lock);
+ spin_unlock(&scrub->os_lock);
RETURN(-EALREADY);
} else if (unlikely(thread_is_stopping(thread))) {
- cfs_spin_unlock(&scrub->os_lock);
+ spin_unlock(&scrub->os_lock);
l_wait_event(thread->t_ctl_waitq,
thread_is_stopped(thread),
&lwi);
goto again;
}
- cfs_spin_unlock(&scrub->os_lock);
+ spin_unlock(&scrub->os_lock);
+
+ if (scrub->os_file.sf_status == SS_COMPLETED) {
+ if (!(flags & SS_SET_FAILOUT))
+ flags |= SS_CLEAR_FAILOUT;
+
+ if (!(flags & SS_SET_DRYRUN))
+ flags |= SS_CLEAR_DRYRUN;
- if (scrub->os_file.sf_status == SS_COMPLETED)
flags |= SS_RESET;
+ }
scrub->os_start_flags = flags;
thread_set_flags(thread, 0);
- rc = cfs_create_thread(osd_scrub_main, dev, 0);
- if (rc < 0) {
- CERROR("%.16s: cannot start iteration thread, rc = %d\n",
- LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name, rc);
+ task = kthread_run(osd_scrub_main, dev, "OI_scrub");
+ if (IS_ERR(task)) {
+ rc = PTR_ERR(task);
+ CERROR("%.16s: cannot start iteration thread: rc = %d\n",
+ osd_scrub2name(scrub), rc);
RETURN(rc);
}
ENTRY;
/* od_otable_mutex: prevent curcurrent start/stop */
- cfs_mutex_lock(&dev->od_otable_mutex);
+ mutex_lock(&dev->od_otable_mutex);
rc = do_osd_scrub_start(dev, SS_AUTO);
- cfs_mutex_unlock(&dev->od_otable_mutex);
+ mutex_unlock(&dev->od_otable_mutex);
RETURN(rc == -EALREADY ? 0 : rc);
}
struct l_wait_info lwi = { 0 };
/* os_lock: sync status between stop and scrub thread */
- cfs_spin_lock(&scrub->os_lock);
+ spin_lock(&scrub->os_lock);
if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
thread_set_flags(thread, SVC_STOPPING);
- cfs_spin_unlock(&scrub->os_lock);
- cfs_waitq_broadcast(&thread->t_ctl_waitq);
+ spin_unlock(&scrub->os_lock);
+ wake_up_all(&thread->t_ctl_waitq);
l_wait_event(thread->t_ctl_waitq,
thread_is_stopped(thread),
&lwi);
/* Do not skip the last lock/unlock, which can guarantee that
* the caller cannot return until the OI scrub thread exit. */
- cfs_spin_lock(&scrub->os_lock);
+ spin_lock(&scrub->os_lock);
}
- cfs_spin_unlock(&scrub->os_lock);
+ spin_unlock(&scrub->os_lock);
}
static void osd_scrub_stop(struct osd_device *dev)
{
/* od_otable_mutex: prevent curcurrent start/stop */
- cfs_mutex_lock(&dev->od_otable_mutex);
+ mutex_lock(&dev->od_otable_mutex);
dev->od_scrub.os_paused = 1;
do_osd_scrub_stop(&dev->od_scrub);
- cfs_mutex_unlock(&dev->od_otable_mutex);
+ mutex_unlock(&dev->od_otable_mutex);
}
+/* OI scrub setup/cleanup */
+
static const char osd_scrub_name[] = "OI_scrub";
int osd_scrub_setup(const struct lu_env *env, struct osd_device *dev)
struct osd_scrub *scrub = &dev->od_scrub;
struct lvfs_run_ctxt *ctxt = &scrub->os_ctxt;
struct scrub_file *sf = &scrub->os_file;
- struct osd_inode_id *id = &scrub->os_oic.oic_lid;
struct super_block *sb = osd_sb(dev);
struct ldiskfs_super_block *es = LDISKFS_SB(sb)->s_es;
- struct inode *inode;
struct lvfs_run_ctxt saved;
struct file *filp;
+ struct inode *inode;
+ struct lu_fid *fid = &info->oti_fid;
int dirty = 0;
- int init = 0;
int rc = 0;
ENTRY;
ctxt->pwd = dev->od_mnt->mnt_root;
ctxt->fs = get_ds();
- cfs_waitq_init(&scrub->os_thread.t_ctl_waitq);
- cfs_init_rwsem(&scrub->os_rwsem);
- cfs_spin_lock_init(&scrub->os_lock);
- CFS_INIT_LIST_HEAD(&scrub->os_inconsistent_items);
+ init_waitqueue_head(&scrub->os_thread.t_ctl_waitq);
+ init_rwsem(&scrub->os_rwsem);
+ spin_lock_init(&scrub->os_lock);
+ INIT_LIST_HEAD(&scrub->os_inconsistent_items);
- push_ctxt(&saved, ctxt, NULL);
+ push_ctxt(&saved, ctxt);
filp = filp_open(osd_scrub_name, O_RDWR | O_CREAT, 0644);
- if (IS_ERR(filp))
+ if (IS_ERR(filp)) {
+ pop_ctxt(&saved, ctxt);
RETURN(PTR_ERR(filp));
+ }
+
+ inode = filp->f_dentry->d_inode;
+ /* 'What the @fid is' is not imporatant, because the object
+ * has no OI mapping, and only is visible inside the OSD.*/
+ lu_igif_build(fid, inode->i_ino, inode->i_generation);
+ rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
+ if (rc != 0) {
+ filp_close(filp, 0);
+ pop_ctxt(&saved, ctxt);
+ RETURN(rc);
+ }
- scrub->os_inode = igrab(filp->f_dentry->d_inode);
+ scrub->os_inode = igrab(inode);
filp_close(filp, 0);
- pop_ctxt(&saved, ctxt, NULL);
+ pop_ctxt(&saved, ctxt);
rc = osd_scrub_file_load(scrub);
if (rc == -ENOENT) {
osd_scrub_file_init(scrub, es->s_uuid);
+ /* If the "/O" dir does not exist when mount (indicated by
+ * osd_device::od_maybe_new), neither for the "/OI_scrub",
+ * then it is quite probably that the device is a new one,
+ * under such case, mark it as SIF_NO_HANDLE_OLD_FID.
+ *
+ * For the rare case that "/O" and "OI_scrub" both lost on
+ * an old device, it can be found and cleared later.
+ *
+ * For the system with "SIF_NO_HANDLE_OLD_FID", we do not
+ * need to check "filter_fid_old" and to convert it to
+ * "filter_fid" for each object, and all the IGIF should
+ * have their FID mapping in OI files already. */
+ if (dev->od_maybe_new)
+ sf->sf_internal_flags = SIF_NO_HANDLE_OLD_FID;
dirty = 1;
- init = 1;
} else if (rc != 0) {
RETURN(rc);
} else {
if (sf->sf_pos_last_checkpoint != 0)
scrub->os_pos_current = sf->sf_pos_last_checkpoint + 1;
else
- scrub->os_pos_current = LDISKFS_FIRST_INO(sb);
+ scrub->os_pos_current = LDISKFS_FIRST_INO(sb) + 1;
if (dirty != 0) {
rc = osd_scrub_file_store(scrub);
if (rc < 0)
RETURN(rc);
- if (init != 0) {
- rc = __osd_oi_lookup(info, dev, &LU_DOT_LUSTRE_FID, id);
- if (rc == 0) {
- inode = osd_iget(info, dev, id);
- if (IS_ERR(inode)) {
- rc = PTR_ERR(inode);
- /* It is restored from old 2.x backup. */
- if (rc == -ENOENT || rc == -ESTALE) {
- osd_scrub_file_reset(scrub, es->s_uuid,
- SF_INCONSISTENT);
- rc = osd_scrub_file_store(scrub);
- }
- } else {
- iput(inode);
- }
- } else if (rc == -ENOENT) {
- rc = 0;
+ rc = osd_initial_OI_scrub(info, dev);
+ if (rc == 0) {
+ if (sf->sf_flags & SF_UPGRADE ||
+ !(sf->sf_internal_flags & SIF_NO_HANDLE_OLD_FID ||
+ sf->sf_success_count > 0)) {
+ dev->od_igif_inoi = 0;
+ dev->od_check_ff = dev->od_is_ost;
+ } else {
+ dev->od_igif_inoi = 1;
+ dev->od_check_ff = 0;
}
+
+ if (sf->sf_flags & SF_INCONSISTENT)
+ /* The 'od_igif_inoi' will be set under the
+ * following cases:
+ * 1) new created system, or
+ * 2) restored from file-level backup, or
+ * 3) the upgrading completed.
+ *
+ * The 'od_igif_inoi' may be cleared by OI scrub
+ * later if found that the system is upgrading. */
+ dev->od_igif_inoi = 1;
+
+ if (!dev->od_noscrub &&
+ ((sf->sf_status == SS_PAUSED) ||
+ (sf->sf_status == SS_CRASHED &&
+ sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
+ SF_UPGRADE | SF_AUTO)) ||
+ (sf->sf_status == SS_INIT &&
+ sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT |
+ SF_UPGRADE))))
+ rc = osd_scrub_start(dev);
}
- if (rc == 0 && !dev->od_noscrub &&
- ((sf->sf_status == SS_PAUSED) ||
- (sf->sf_status == SS_CRASHED &&
- sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT | SF_AUTO)) ||
- (sf->sf_status == SS_INIT &&
- sf->sf_flags & (SF_RECREATED | SF_INCONSISTENT))))
- rc = osd_scrub_start(dev);
+ /* it is possible that dcache entries may keep objects after they are
+ * deleted by OSD. While it looks safe this can cause object data to
+ * stay until umount causing failures in tests calculating free space,
+ * e.g. replay-ost-single. Since those dcache entries are not used
+ * anymore let's just free them after use here */
+ shrink_dcache_sb(sb);
RETURN(rc);
}
osd_oi_fini(osd_oti_get(env), dev);
}
+/* object table based iteration APIs */
+
static struct dt_it *osd_otable_it_init(const struct lu_env *env,
struct dt_object *dt, __u32 attr,
struct lustre_capa *capa)
ENTRY;
/* od_otable_mutex: prevent curcurrent init/fini */
- cfs_mutex_lock(&dev->od_otable_mutex);
+ mutex_lock(&dev->od_otable_mutex);
if (dev->od_otable_it != NULL)
GOTO(out, it = ERR_PTR(-EALREADY));
start |= SS_CLEAR_FAILOUT;
}
+ if (valid & DOIV_DRYRUN) {
+ if (flags & DOIF_DRYRUN)
+ start |= SS_SET_DRYRUN;
+ else
+ start |= SS_CLEAR_DRYRUN;
+ }
+
rc = do_osd_scrub_start(dev, start);
- if (rc == -EALREADY) {
- it->ooi_cache.ooc_pos_preload = scrub->os_pos_current - 1;
- } else if (rc < 0) {
+ if (rc < 0 && rc != -EALREADY) {
dev->od_otable_it = NULL;
OBD_FREE_PTR(it);
- GOTO(out, it = ERR_PTR(-EALREADY));
- } else {
- it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
+ GOTO(out, it = ERR_PTR(rc));
}
+ it->ooi_cache.ooc_pos_preload = scrub->os_pos_current;
+
GOTO(out, it);
out:
- cfs_mutex_unlock(&dev->od_otable_mutex);
+ mutex_unlock(&dev->od_otable_mutex);
return (struct dt_it *)it;
}
struct osd_device *dev = it->ooi_dev;
/* od_otable_mutex: prevent curcurrent init/fini */
- cfs_mutex_lock(&dev->od_otable_mutex);
+ mutex_lock(&dev->od_otable_mutex);
do_osd_scrub_stop(&dev->od_scrub);
LASSERT(dev->od_otable_it == it);
dev->od_otable_it = NULL;
- cfs_mutex_unlock(&dev->od_otable_mutex);
+ mutex_unlock(&dev->od_otable_mutex);
OBD_FREE_PTR(it);
}
-/**
- * XXX: Temporary used to notify otable iteration to be paused.
- */
-static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
-{
- struct osd_device *dev = ((struct osd_otable_it *)di)->ooi_dev;
-
- /* od_otable_mutex: prevent curcurrent init/fini */
- cfs_mutex_lock(&dev->od_otable_mutex);
- dev->od_scrub.os_paused = 1;
- cfs_mutex_unlock(&dev->od_otable_mutex);
-}
-
-/**
- * Set the OSD layer iteration start position as the specified key.
- *
- * The LFSCK out of OSD layer does not know the detail of the key, so if there
- * are several keys, they cannot be compared out of OSD, so call "::get()" for
- * each key, and OSD will select the smallest one by itself.
- */
static int osd_otable_it_get(const struct lu_env *env,
struct dt_it *di, const struct dt_key *key)
{
- struct osd_otable_it *it = (struct osd_otable_it *)di;
- struct osd_otable_cache *ooc = &it->ooi_cache;
- const char *str = (const char *)key;
- __u32 ino;
- ENTRY;
-
- /* Forbid to set iteration position after iteration started. */
- if (it->ooi_user_ready)
- RETURN(-EPERM);
-
- if (str[0] == '\0')
- RETURN(-EINVAL);
-
- if (sscanf(str, "%u", &ino) <= 0)
- RETURN(-EINVAL);
-
- /* Skip the one that has been processed last time. */
- if (ooc->ooc_pos_preload > ++ino)
- ooc->ooc_pos_preload = ino;
-
- RETURN(0);
+ return 0;
}
-static int osd_otable_it_preload(const struct lu_env *env,
- struct osd_otable_it *it)
+static void osd_otable_it_put(const struct lu_env *env, struct dt_it *di)
{
- struct osd_device *dev = it->ooi_dev;
- struct osd_scrub *scrub = &dev->od_scrub;
- struct osd_otable_cache *ooc = &it->ooi_cache;
- int rc;
- ENTRY;
-
- rc = osd_inode_iteration(osd_oti_get(env), dev,
- OSD_OTABLE_IT_CACHE_SIZE, 1);
- if (rc == SCRUB_IT_ALL)
- it->ooi_all_cached = 1;
-
- CDEBUG(D_LFSCK, "OSD pre-loaded: max = %u, preload = %u, rc = %d\n",
- le32_to_cpu(LDISKFS_SB(osd_sb(dev))->s_es->s_inodes_count),
- ooc->ooc_pos_preload, rc);
+}
- if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
- scrub->os_waiting = 0;
- cfs_waitq_broadcast(&scrub->os_thread.t_ctl_waitq);
- }
+static inline int
+osd_otable_it_wakeup(struct osd_scrub *scrub, struct osd_otable_it *it)
+{
+ spin_lock(&scrub->os_lock);
+ if (it->ooi_cache.ooc_pos_preload < scrub->os_pos_current ||
+ scrub->os_waiting ||
+ !thread_is_running(&scrub->os_thread))
+ it->ooi_waiting = 0;
+ else
+ it->ooi_waiting = 1;
+ spin_unlock(&scrub->os_lock);
- RETURN(rc < 0 ? rc : ooc->ooc_cached_items);
+ return !it->ooi_waiting;
}
static int osd_otable_it_next(const struct lu_env *env, struct dt_it *di)
RETURN(1);
}
- it->ooi_waiting = 1;
- l_wait_event(thread->t_ctl_waitq,
- ooc->ooc_pos_preload < scrub->os_pos_current ||
- !thread_is_running(thread),
- &lwi);
- it->ooi_waiting = 0;
+ if (scrub->os_waiting && osd_scrub_has_window(scrub, ooc)) {
+ spin_lock(&scrub->os_lock);
+ scrub->os_waiting = 0;
+ wake_up_all(&scrub->os_thread.t_ctl_waitq);
+ spin_unlock(&scrub->os_lock);
+ }
+
+ if (it->ooi_cache.ooc_pos_preload >= scrub->os_pos_current)
+ l_wait_event(thread->t_ctl_waitq,
+ osd_otable_it_wakeup(scrub, it),
+ &lwi);
if (!thread_is_running(thread) && !it->ooi_used_outside)
RETURN(1);
static struct dt_key *osd_otable_it_key(const struct lu_env *env,
const struct dt_it *di)
{
- struct osd_otable_it *it = (struct osd_otable_it *)di;
- struct osd_otable_cache *ooc = &it->ooi_cache;
-
- sprintf(it->ooi_key, "%u",
- ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino);
- return (struct dt_key *)it->ooi_key;
+ return NULL;
}
static int osd_otable_it_key_size(const struct lu_env *env,
const struct dt_it *di)
{
- return sizeof(((struct osd_otable_it *)di)->ooi_key);
+ return sizeof(__u64);
}
static int osd_otable_it_rec(const struct lu_env *env, const struct dt_it *di,
struct osd_otable_cache *ooc = &it->ooi_cache;
*(struct lu_fid *)rec = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_fid;
+
+ /* Filter out Invald FID already. */
+ LASSERTF(fid_is_sane((struct lu_fid *)rec),
+ "Invalid FID "DFID", p_idx = %d, c_idx = %d\n",
+ PFID((struct lu_fid *)rec),
+ ooc->ooc_producer_idx, ooc->ooc_consumer_idx);
+
return 0;
}
+static __u64 osd_otable_it_store(const struct lu_env *env,
+ const struct dt_it *di)
+{
+ struct osd_otable_it *it = (struct osd_otable_it *)di;
+ struct osd_otable_cache *ooc = &it->ooi_cache;
+ __u64 hash;
+
+ if (it->ooi_user_ready && ooc->ooc_consumer_idx != -1)
+ hash = ooc->ooc_cache[ooc->ooc_consumer_idx].oic_lid.oii_ino;
+ else
+ hash = ooc->ooc_pos_preload;
+ return hash;
+}
+
+/**
+ * Set the OSD layer iteration start position as the specified hash.
+ */
static int osd_otable_it_load(const struct lu_env *env,
const struct dt_it *di, __u64 hash)
{
struct osd_device *dev = it->ooi_dev;
struct osd_otable_cache *ooc = &it->ooi_cache;
struct osd_scrub *scrub = &dev->od_scrub;
+ int rc;
+ ENTRY;
+ /* Forbid to set iteration position after iteration started. */
if (it->ooi_user_ready)
- return 0;
+ RETURN(-EPERM);
+
+ if (hash > OSD_OTABLE_MAX_HASH)
+ hash = OSD_OTABLE_MAX_HASH;
+
+ ooc->ooc_pos_preload = hash;
+ if (ooc->ooc_pos_preload <= LDISKFS_FIRST_INO(osd_sb(dev)))
+ ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev)) + 1;
- if (ooc->ooc_pos_preload < LDISKFS_FIRST_INO(osd_sb(dev)))
- ooc->ooc_pos_preload = LDISKFS_FIRST_INO(osd_sb(dev));
it->ooi_user_ready = 1;
if (!scrub->os_full_speed)
- cfs_waitq_broadcast(&scrub->os_thread.t_ctl_waitq);
+ wake_up_all(&scrub->os_thread.t_ctl_waitq);
/* Unplug OSD layer iteration by the first next() call. */
- return osd_otable_it_next(env, (struct dt_it *)it);
+ rc = osd_otable_it_next(env, (struct dt_it *)it);
+
+ RETURN(rc);
+}
+
+static int osd_otable_it_key_rec(const struct lu_env *env,
+ const struct dt_it *di, void *key_rec)
+{
+ return 0;
}
const struct dt_index_operations osd_otable_ops = {
.dio_it = {
.init = osd_otable_it_init,
.fini = osd_otable_it_fini,
- .put = osd_otable_it_put,
.get = osd_otable_it_get,
+ .put = osd_otable_it_put,
.next = osd_otable_it_next,
- .key = osd_otable_it_key,
+ .key = osd_otable_it_key,
.key_size = osd_otable_it_key_size,
.rec = osd_otable_it_rec,
+ .store = osd_otable_it_store,
.load = osd_otable_it_load,
+ .key_rec = osd_otable_it_key_rec,
}
};
+/* high priority inconsistent items list APIs */
+
int osd_oii_insert(struct osd_device *dev, struct osd_idmap_cache *oic,
int insert)
{
if (unlikely(oii == NULL))
RETURN(-ENOMEM);
- CFS_INIT_LIST_HEAD(&oii->oii_list);
+ INIT_LIST_HEAD(&oii->oii_list);
oii->oii_cache = *oic;
oii->oii_insert = insert;
- cfs_spin_lock(&scrub->os_lock);
+ spin_lock(&scrub->os_lock);
if (unlikely(!thread_is_running(thread))) {
- cfs_spin_unlock(&scrub->os_lock);
+ spin_unlock(&scrub->os_lock);
OBD_FREE_PTR(oii);
RETURN(-EAGAIN);
}
- if (cfs_list_empty(&scrub->os_inconsistent_items))
+ if (list_empty(&scrub->os_inconsistent_items))
wakeup = 1;
- cfs_list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
- cfs_spin_unlock(&scrub->os_lock);
+ list_add_tail(&oii->oii_list, &scrub->os_inconsistent_items);
+ spin_unlock(&scrub->os_lock);
if (wakeup != 0)
- cfs_waitq_broadcast(&thread->t_ctl_waitq);
+ wake_up_all(&thread->t_ctl_waitq);
RETURN(0);
}
struct osd_inconsistent_item *oii;
ENTRY;
- cfs_spin_lock(&scrub->os_lock);
- cfs_list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
+ spin_lock(&scrub->os_lock);
+ list_for_each_entry(oii, &scrub->os_inconsistent_items, oii_list) {
if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
*id = oii->oii_cache.oic_lid;
- cfs_spin_unlock(&scrub->os_lock);
+ spin_unlock(&scrub->os_lock);
RETURN(0);
}
}
- cfs_spin_unlock(&scrub->os_lock);
+ spin_unlock(&scrub->os_lock);
RETURN(-ENOENT);
}
+/* OI scrub dump */
+
static const char *scrub_status_names[] = {
"init",
"scanning",
"recreated",
"inconsistent",
"auto",
+ "upgrade",
NULL
};
static const char *scrub_param_names[] = {
"failout",
+ "dryrun",
NULL
};
-static int scrub_bits_dump(char **buf, int *len, int bits, const char *names[],
+static int scrub_bits_dump(struct seq_file *m, int bits, const char *names[],
const char *prefix)
{
- int save = *len;
int flag;
int rc;
int i;
- rc = snprintf(*buf, *len, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
- if (rc <= 0)
- return -ENOSPC;
+ rc = seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
+ if (rc < 0)
+ return rc;
- *buf += rc;
- *len -= rc;
for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
if (flag & bits) {
bits &= ~flag;
- rc = snprintf(*buf, *len, "%s%c", names[i],
- bits != 0 ? ',' : '\n');
- if (rc <= 0)
- return -ENOSPC;
-
- *buf += rc;
- *len -= rc;
+ rc = seq_printf(m, "%s%c", names[i],
+ bits != 0 ? ',' : '\n');
+ if (rc < 0)
+ return rc;
}
}
- return save - *len;
+ return 0;
}
-static int scrub_time_dump(char **buf, int *len, __u64 time, const char *prefix)
+static int scrub_time_dump(struct seq_file *m, __u64 time, const char *prefix)
{
int rc;
if (time != 0)
- rc = snprintf(*buf, *len, "%s: "LPU64" seconds\n", prefix,
+ rc = seq_printf(m, "%s: "LPU64" seconds\n", prefix,
cfs_time_current_sec() - time);
else
- rc = snprintf(*buf, *len, "%s: N/A\n", prefix);
- if (rc <= 0)
- return -ENOSPC;
-
- *buf += rc;
- *len -= rc;
+ rc = seq_printf(m, "%s: N/A\n", prefix);
return rc;
}
-static int scrub_pos_dump(char **buf, int *len, __u64 pos, const char *prefix)
+static int scrub_pos_dump(struct seq_file *m, __u64 pos, const char *prefix)
{
int rc;
if (pos != 0)
- rc = snprintf(*buf, *len, "%s: "LPU64"\n", prefix, pos);
+ rc = seq_printf(m, "%s: "LPU64"\n", prefix, pos);
else
- rc = snprintf(*buf, *len, "%s: N/A\n", prefix);
- if (rc <= 0)
- return -ENOSPC;
-
- *buf += rc;
- *len -= rc;
+ rc = seq_printf(m, "%s: N/A\n", prefix);
return rc;
}
-int osd_scrub_dump(struct osd_device *dev, char *buf, int len)
+int osd_scrub_dump(struct seq_file *m, struct osd_device *dev)
{
struct osd_scrub *scrub = &dev->od_scrub;
struct scrub_file *sf = &scrub->os_file;
__u64 checked;
__u64 speed;
- int save = len;
- int ret = -ENOSPC;
int rc;
- cfs_down_read(&scrub->os_rwsem);
- rc = snprintf(buf, len,
- "name: OI scrub\n"
- "magic: 0x%x\n"
- "oi_files: %d\n"
- "status: %s\n",
- sf->sf_magic, (int)sf->sf_oi_count,
- scrub_status_names[sf->sf_status]);
- if (rc <= 0)
+ down_read(&scrub->os_rwsem);
+ rc = seq_printf(m, "name: OI_scrub\n"
+ "magic: 0x%x\n"
+ "oi_files: %d\n"
+ "status: %s\n",
+ sf->sf_magic, (int)sf->sf_oi_count,
+ scrub_status_names[sf->sf_status]);
+ if (rc < 0)
goto out;
- buf += rc;
- len -= rc;
- rc = scrub_bits_dump(&buf, &len, sf->sf_flags, scrub_flags_names,
+ rc = scrub_bits_dump(m, sf->sf_flags, scrub_flags_names,
"flags");
if (rc < 0)
goto out;
- rc = scrub_bits_dump(&buf, &len, sf->sf_param, scrub_param_names,
+ rc = scrub_bits_dump(m, sf->sf_param, scrub_param_names,
"param");
if (rc < 0)
goto out;
- rc = scrub_time_dump(&buf, &len, sf->sf_time_last_complete,
+ rc = scrub_time_dump(m, sf->sf_time_last_complete,
"time_since_last_completed");
if (rc < 0)
goto out;
- rc = scrub_time_dump(&buf, &len, sf->sf_time_latest_start,
+ rc = scrub_time_dump(m, sf->sf_time_latest_start,
"time_since_latest_start");
if (rc < 0)
goto out;
- rc = scrub_time_dump(&buf, &len, sf->sf_time_last_checkpoint,
+ rc = scrub_time_dump(m, sf->sf_time_last_checkpoint,
"time_since_last_checkpoint");
if (rc < 0)
goto out;
- rc = scrub_pos_dump(&buf, &len, sf->sf_pos_latest_start,
+ rc = scrub_pos_dump(m, sf->sf_pos_latest_start,
"latest_start_position");
if (rc < 0)
goto out;
- rc = scrub_pos_dump(&buf, &len, sf->sf_pos_last_checkpoint,
+ rc = scrub_pos_dump(m, sf->sf_pos_last_checkpoint,
"last_checkpoint_position");
if (rc < 0)
goto out;
- rc = scrub_pos_dump(&buf, &len, sf->sf_pos_first_inconsistent,
+ rc = scrub_pos_dump(m, sf->sf_pos_first_inconsistent,
"first_failure_position");
if (rc < 0)
goto out;
checked = sf->sf_items_checked + scrub->os_new_checked;
- rc = snprintf(buf, len,
- "checked: "LPU64"\n"
+ rc = seq_printf(m, "checked: "LPU64"\n"
"updated: "LPU64"\n"
"failed: "LPU64"\n"
"prior_updated: "LPU64"\n"
checked, sf->sf_items_updated, sf->sf_items_failed,
sf->sf_items_updated_prior, sf->sf_items_noscrub,
sf->sf_items_igif, sf->sf_success_count);
- if (rc <= 0)
+ if (rc < 0)
goto out;
- buf += rc;
- len -= rc;
speed = checked;
if (thread_is_running(&scrub->os_thread)) {
cfs_duration_t duration = cfs_time_current() -
scrub->os_time_last_checkpoint;
- __u64 new_checked = scrub->os_new_checked * CFS_HZ;
+ __u64 new_checked = scrub->os_new_checked * HZ;
__u32 rtime = sf->sf_run_time +
cfs_duration_sec(duration + HALF_SEC);
do_div(new_checked, duration);
if (rtime != 0)
do_div(speed, rtime);
- rc = snprintf(buf, len,
- "run_time: %u seconds\n"
+ rc = seq_printf(m, "run_time: %u seconds\n"
"average_speed: "LPU64" objects/sec\n"
"real-time_speed: "LPU64" objects/sec\n"
- "current_position: %u\n",
- rtime, speed, new_checked, scrub->os_pos_current);
+ "current_position: %u\n"
+ "lf_scanned: "LPU64"\n"
+ "lf_reparied: "LPU64"\n"
+ "lf_failed: "LPU64"\n",
+ rtime, speed, new_checked, scrub->os_pos_current,
+ scrub->os_lf_scanned, scrub->os_lf_repaired,
+ scrub->os_lf_failed);
} else {
if (sf->sf_run_time != 0)
do_div(speed, sf->sf_run_time);
- rc = snprintf(buf, len,
- "run_time: %u seconds\n"
+ rc = seq_printf(m, "run_time: %u seconds\n"
"average_speed: "LPU64" objects/sec\n"
"real-time_speed: N/A\n"
- "current_position: N/A\n",
- sf->sf_run_time, speed);
+ "current_position: N/A\n"
+ "lf_scanned: "LPU64"\n"
+ "lf_reparied: "LPU64"\n"
+ "lf_failed: "LPU64"\n",
+ sf->sf_run_time, speed, scrub->os_lf_scanned,
+ scrub->os_lf_repaired, scrub->os_lf_failed);
}
- if (rc <= 0)
- goto out;
-
- buf += rc;
- len -= rc;
- ret = save - len;
out:
- cfs_up_read(&scrub->os_rwsem);
- return ret;
+ up_read(&scrub->os_rwsem);
+ return (rc < 0 ? -ENOSPC : 0);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff