static int __out_tx_xattr_set(const struct lu_env *env,
struct dt_object *dt_obj,
const struct lu_buf *buf,
const char *name, int flags,
struct thandle_exec_args *ta,
struct update_reply *reply, int index,
char *file, int line)
{
struct tx_arg *arg;
LASSERT(ta->ta_handle != NULL);
ta->ta_err = dt_declare_xattr_set(env, dt_obj, buf, name,
flags, ta->ta_handle);
if (ta->ta_err != 0)
return ta->ta_err;
arg = tx_add_exec(ta, out_tx_xattr_set_exec, NULL, file, line);
LASSERT(arg);
lu_object_get(&dt_obj->do_lu);
arg->object = dt_obj;
arg->u.xattr_set.name = name;
arg->u.xattr_set.flags = flags;
arg->u.xattr_set.buf = *buf;
arg->reply = reply;
arg->index = index;
arg->u.xattr_set.csum = 0;
return 0;
}
static int lfsck_update_lma(const struct lu_env *env,
struct lfsck_instance *lfsck, struct dt_object *obj)
{
struct lfsck_thread_info *info = lfsck_env_info(env);
struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
struct dt_device *dt = lfsck->li_bottom;
struct lustre_mdt_attrs *lma = &info->lti_lma;
struct lu_buf *buf;
struct thandle *th;
int fl;
int rc;
ENTRY;
if (bk->lb_param & LPF_DRYRUN)
RETURN(0);
buf = lfsck_buf_get(env, info->lti_lma_old, LMA_OLD_SIZE);
rc = dt_xattr_get(env, obj, buf, XATTR_NAME_LMA, BYPASS_CAPA);
if (rc < 0) {
if (rc != -ENODATA)
RETURN(rc);
fl = LU_XATTR_CREATE;
lustre_lma_init(lma, lfsck_dto2fid(obj), LMAC_FID_ON_OST, 0);
} else {
if (rc != LMA_OLD_SIZE && rc != sizeof(struct lustre_mdt_attrs))
RETURN(-EINVAL);
fl = LU_XATTR_REPLACE;
lustre_lma_swab(lma);
lustre_lma_init(lma, lfsck_dto2fid(obj),
lma->lma_compat | LMAC_FID_ON_OST,
lma->lma_incompat);
}
lustre_lma_swab(lma);
th = dt_trans_create(env, dt);
if (IS_ERR(th))
RETURN(PTR_ERR(th));
buf = lfsck_buf_get(env, lma, sizeof(*lma));
rc = dt_declare_xattr_set(env, obj, buf, XATTR_NAME_LMA, fl, th);
if (rc != 0)
GOTO(stop, rc);
rc = dt_trans_start(env, dt, th);
if (rc != 0)
GOTO(stop, rc);
rc = dt_xattr_set(env, obj, buf, XATTR_NAME_LMA, fl, th, BYPASS_CAPA);
GOTO(stop, rc);
stop:
dt_trans_stop(env, dt, th);
return rc;
}
static int lfsck_namespace_store(const struct lu_env *env,
struct lfsck_component *com, bool init)
{
struct dt_object *obj = com->lc_obj;
struct lfsck_instance *lfsck = com->lc_lfsck;
struct thandle *handle;
int len = com->lc_file_size;
int rc;
ENTRY;
lfsck_namespace_cpu_to_le((struct lfsck_namespace *)com->lc_file_disk,
(struct lfsck_namespace *)com->lc_file_ram);
handle = dt_trans_create(env, lfsck->li_bottom);
if (IS_ERR(handle)) {
rc = PTR_ERR(handle);
CERROR("%s: fail to create trans for storing lfsck_namespace: "
"rc = %d\n", lfsck_lfsck2name(lfsck), rc);
RETURN(rc);
}
rc = dt_declare_xattr_set(env, obj,
lfsck_buf_get(env, com->lc_file_disk, len),
XATTR_NAME_LFSCK_NAMESPACE, 0, handle);
if (rc != 0) {
CERROR("%s: fail to declare trans for storing lfsck_namespace: "
"rc = %d\n", lfsck_lfsck2name(lfsck), rc);
GOTO(out, rc);
}
rc = dt_trans_start_local(env, lfsck->li_bottom, handle);
if (rc != 0) {
CERROR("%s: fail to start trans for storing lfsck_namespace: "
"rc = %d\n", lfsck_lfsck2name(lfsck), rc);
GOTO(out, rc);
}
rc = dt_xattr_set(env, obj,
lfsck_buf_get(env, com->lc_file_disk, len),
XATTR_NAME_LFSCK_NAMESPACE,
init ? LU_XATTR_CREATE : LU_XATTR_REPLACE,
handle, BYPASS_CAPA);
if (rc != 0)
CERROR("%s: fail to store lfsck_namespace: len = %d, "
"rc = %d\n", lfsck_lfsck2name(lfsck), len, rc);
GOTO(out, rc);
out:
dt_trans_stop(env, lfsck->li_bottom, handle);
return rc;
}
static int lfsck_declare_namespace_exec_dir(const struct lu_env *env,
struct dt_object *obj,
struct thandle *handle)
{
int rc;
/* For destroying all invalid linkEA entries. */
rc = dt_declare_xattr_del(env, obj, XATTR_NAME_LINK, handle);
if (rc != 0)
return rc;
/* For insert new linkEA entry. */
rc = dt_declare_xattr_set(env, obj,
lfsck_buf_get_const(env, NULL, DEFAULT_LINKEA_SIZE),
XATTR_NAME_LINK, 0, handle);
return rc;
}
/**
* Set attributes of object during write bulk IO processing.
*
* Change object attributes and write parent FID into extended
* attributes when needed.
*
* \param[in] env execution environment
* \param[in] ofd OFD device
* \param[in] ofd_obj OFD object
* \param[in] la object attributes
* \param[in] ff parent FID
*
* \retval 0 on successful attributes update
* \retval negative value on error
*/
static int
ofd_write_attr_set(const struct lu_env *env, struct ofd_device *ofd,
struct ofd_object *ofd_obj, struct lu_attr *la,
struct filter_fid *ff)
{
struct ofd_thread_info *info = ofd_info(env);
__u64 valid = la->la_valid;
int rc;
struct thandle *th;
struct dt_object *dt_obj;
int ff_needed = 0;
ENTRY;
LASSERT(la);
dt_obj = ofd_object_child(ofd_obj);
LASSERT(dt_obj != NULL);
la->la_valid &= LA_UID | LA_GID;
rc = ofd_attr_handle_ugid(env, ofd_obj, la, 0 /* !is_setattr */);
if (rc != 0)
GOTO(out, rc);
if (ff != NULL) {
rc = ofd_object_ff_load(env, ofd_obj);
if (rc == -ENODATA)
ff_needed = 1;
else if (rc < 0)
GOTO(out, rc);
}
if (!la->la_valid && !ff_needed)
/* no attributes to set */
GOTO(out, rc = 0);
th = ofd_trans_create(env, ofd);
if (IS_ERR(th))
GOTO(out, rc = PTR_ERR(th));
if (la->la_valid) {
rc = dt_declare_attr_set(env, dt_obj, la, th);
if (rc)
GOTO(out_tx, rc);
}
if (ff_needed) {
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_UNMATCHED_PAIR1))
ff->ff_parent.f_oid = cpu_to_le32(1UL << 31);
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_UNMATCHED_PAIR2))
ff->ff_parent.f_oid =
cpu_to_le32(le32_to_cpu(ff->ff_parent.f_oid) - 1);
info->fti_buf.lb_buf = ff;
info->fti_buf.lb_len = sizeof(*ff);
rc = dt_declare_xattr_set(env, dt_obj, &info->fti_buf,
XATTR_NAME_FID, 0, th);
if (rc)
GOTO(out_tx, rc);
}
/* We don't need a transno for this operation which will be re-executed
* anyway when the OST_WRITE (with a transno assigned) is replayed */
rc = dt_trans_start_local(env, ofd->ofd_osd , th);
if (rc)
GOTO(out_tx, rc);
/* set uid/gid */
if (la->la_valid) {
rc = dt_attr_set(env, dt_obj, la, th);
if (rc)
GOTO(out_tx, rc);
}
/* set filter fid EA */
if (ff_needed) {
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_NOPFID))
GOTO(out_tx, rc);
rc = dt_xattr_set(env, dt_obj, &info->fti_buf, XATTR_NAME_FID,
0, th);
if (rc == 0) {
ofd_obj->ofo_pfid.f_seq = le64_to_cpu(ff->ff_parent.f_seq);
ofd_obj->ofo_pfid.f_oid = le32_to_cpu(ff->ff_parent.f_oid);
/* Currently, the filter_fid::ff_parent::f_ver is not
* the real parent MDT-object's FID::f_ver, instead it
* is the OST-object index in its parent MDT-object's
* layout EA. */
ofd_obj->ofo_pfid.f_stripe_idx =
le32_to_cpu(ff->ff_parent.f_stripe_idx);
}
}
GOTO(out_tx, rc);
out_tx:
dt_trans_stop(env, ofd->ofd_osd, th);
out:
la->la_valid = valid;
return rc;
}
int ofd_object_punch(const struct lu_env *env, struct ofd_object *fo,
__u64 start, __u64 end, struct lu_attr *la,
struct filter_fid *ff, struct obdo *oa)
{
struct ofd_thread_info *info = ofd_info(env);
struct ofd_device *ofd = ofd_obj2dev(fo);
struct ofd_mod_data *fmd;
struct dt_object *dob = ofd_object_child(fo);
struct thandle *th;
int ff_needed = 0;
int rc;
ENTRY;
/* we support truncate, not punch yet */
LASSERT(end == OBD_OBJECT_EOF);
fmd = ofd_fmd_get(info->fti_exp, &fo->ofo_header.loh_fid);
if (fmd && fmd->fmd_mactime_xid < info->fti_xid)
fmd->fmd_mactime_xid = info->fti_xid;
ofd_fmd_put(info->fti_exp, fmd);
ofd_write_lock(env, fo);
if (!ofd_object_exists(fo))
GOTO(unlock, rc = -ENOENT);
if (ofd->ofd_lfsck_verify_pfid && oa->o_valid & OBD_MD_FLFID) {
rc = ofd_verify_ff(env, fo, oa);
if (rc != 0)
GOTO(unlock, rc);
}
/* VBR: version recovery check */
rc = ofd_version_get_check(info, fo);
if (rc)
GOTO(unlock, rc);
rc = ofd_attr_handle_ugid(env, fo, la, 0 /* !is_setattr */);
if (rc != 0)
GOTO(unlock, rc);
if (ff != NULL) {
rc = ofd_object_ff_load(env, fo);
if (rc == -ENODATA)
ff_needed = 1;
else if (rc < 0)
GOTO(unlock, rc);
}
th = ofd_trans_create(env, ofd);
if (IS_ERR(th))
GOTO(unlock, rc = PTR_ERR(th));
rc = dt_declare_attr_set(env, dob, la, th);
if (rc)
GOTO(stop, rc);
rc = dt_declare_punch(env, dob, start, OBD_OBJECT_EOF, th);
if (rc)
GOTO(stop, rc);
if (ff_needed) {
info->fti_buf.lb_buf = ff;
info->fti_buf.lb_len = sizeof(*ff);
rc = dt_declare_xattr_set(env, ofd_object_child(fo),
&info->fti_buf, XATTR_NAME_FID, 0,
th);
if (rc)
GOTO(stop, rc);
}
rc = ofd_trans_start(env, ofd, fo, th);
if (rc)
GOTO(stop, rc);
rc = dt_punch(env, dob, start, OBD_OBJECT_EOF, th,
ofd_object_capa(env, fo));
if (rc)
GOTO(stop, rc);
rc = dt_attr_set(env, dob, la, th, ofd_object_capa(env, fo));
if (rc)
GOTO(stop, rc);
if (ff_needed) {
rc = dt_xattr_set(env, ofd_object_child(fo), &info->fti_buf,
XATTR_NAME_FID, 0, th, BYPASS_CAPA);
if (rc == 0) {
fo->ofo_pfid.f_seq = le64_to_cpu(ff->ff_parent.f_seq);
fo->ofo_pfid.f_oid = le32_to_cpu(ff->ff_parent.f_oid);
/* Currently, the filter_fid::ff_parent::f_ver is not
* the real parent MDT-object's FID::f_ver, instead it
* is the OST-object index in its parent MDT-object's
* layout EA. */
fo->ofo_pfid.f_stripe_idx =
le32_to_cpu(ff->ff_parent.f_stripe_idx);
}
}
GOTO(stop, rc);
stop:
ofd_trans_stop(env, ofd, th, rc);
unlock:
ofd_write_unlock(env, fo);
return rc;
}
int ofd_attr_set(const struct lu_env *env, struct ofd_object *fo,
struct lu_attr *la, struct filter_fid *ff)
{
struct ofd_thread_info *info = ofd_info(env);
struct ofd_device *ofd = ofd_obj2dev(fo);
struct thandle *th;
struct ofd_mod_data *fmd;
int ff_needed = 0;
int rc;
ENTRY;
ofd_write_lock(env, fo);
if (!ofd_object_exists(fo))
GOTO(unlock, rc = -ENOENT);
if (la->la_valid & (LA_ATIME | LA_MTIME | LA_CTIME)) {
fmd = ofd_fmd_get(info->fti_exp, &fo->ofo_header.loh_fid);
if (fmd && fmd->fmd_mactime_xid < info->fti_xid)
fmd->fmd_mactime_xid = info->fti_xid;
ofd_fmd_put(info->fti_exp, fmd);
}
/* VBR: version recovery check */
rc = ofd_version_get_check(info, fo);
if (rc)
GOTO(unlock, rc);
rc = ofd_attr_handle_ugid(env, fo, la, 1 /* is_setattr */);
if (rc != 0)
GOTO(unlock, rc);
if (ff != NULL) {
rc = ofd_object_ff_load(env, fo);
if (rc == -ENODATA)
ff_needed = 1;
else if (rc < 0)
GOTO(unlock, rc);
}
th = ofd_trans_create(env, ofd);
if (IS_ERR(th))
GOTO(unlock, rc = PTR_ERR(th));
rc = dt_declare_attr_set(env, ofd_object_child(fo), la, th);
if (rc)
GOTO(stop, rc);
if (ff_needed) {
info->fti_buf.lb_buf = ff;
info->fti_buf.lb_len = sizeof(*ff);
rc = dt_declare_xattr_set(env, ofd_object_child(fo),
&info->fti_buf, XATTR_NAME_FID, 0,
th);
if (rc)
GOTO(stop, rc);
}
rc = ofd_trans_start(env, ofd, la->la_valid & LA_SIZE ? fo : NULL, th);
if (rc)
GOTO(stop, rc);
rc = dt_attr_set(env, ofd_object_child(fo), la, th,
ofd_object_capa(env, fo));
if (rc)
GOTO(stop, rc);
if (ff_needed) {
rc = dt_xattr_set(env, ofd_object_child(fo), &info->fti_buf,
XATTR_NAME_FID, 0, th, BYPASS_CAPA);
if (rc == 0) {
fo->ofo_pfid.f_seq = le64_to_cpu(ff->ff_parent.f_seq);
fo->ofo_pfid.f_oid = le32_to_cpu(ff->ff_parent.f_oid);
/* Currently, the filter_fid::ff_parent::f_ver is not
* the real parent MDT-object's FID::f_ver, instead it
* is the OST-object index in its parent MDT-object's
* layout EA. */
fo->ofo_pfid.f_stripe_idx =
le32_to_cpu(ff->ff_parent.f_stripe_idx);
}
}
GOTO(stop, rc);
stop:
ofd_trans_stop(env, ofd, th, rc);
unlock:
ofd_write_unlock(env, fo);
return rc;
}
/**
* Set attributes of object during write bulk IO processing.
*
* Change object attributes and write parent FID into extended
* attributes when needed.
*
* \param[in] env execution environment
* \param[in] ofd OFD device
* \param[in] ofd_obj OFD object
* \param[in] la object attributes
* \param[in] oa obdo
*
* \retval 0 on successful attributes update
* \retval negative value on error
*/
static int
ofd_write_attr_set(const struct lu_env *env, struct ofd_device *ofd,
struct ofd_object *ofd_obj, struct lu_attr *la,
struct obdo *oa)
{
struct ofd_thread_info *info = ofd_info(env);
struct filter_fid *ff = &info->fti_mds_fid;
__u64 valid = la->la_valid;
struct thandle *th;
struct dt_object *dt_obj;
int fl = 0;
int rc;
ENTRY;
LASSERT(la);
dt_obj = ofd_object_child(ofd_obj);
LASSERT(dt_obj != NULL);
la->la_valid &= LA_UID | LA_GID | LA_PROJID;
rc = ofd_attr_handle_id(env, ofd_obj, la, 0 /* !is_setattr */);
if (rc != 0)
GOTO(out, rc);
fl = ofd_object_ff_update(env, ofd_obj, oa, ff);
if (fl < 0)
GOTO(out, rc = fl);
if (!la->la_valid && !fl)
/* no attributes to set */
GOTO(out, rc = 0);
th = ofd_trans_create(env, ofd);
if (IS_ERR(th))
GOTO(out, rc = PTR_ERR(th));
if (la->la_valid) {
rc = dt_declare_attr_set(env, dt_obj, la, th);
if (rc)
GOTO(out_tx, rc);
}
if (fl) {
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_UNMATCHED_PAIR1))
ff->ff_parent.f_oid = cpu_to_le32(1UL << 31);
else if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_UNMATCHED_PAIR2))
le32_add_cpu(&ff->ff_parent.f_oid, -1);
rc = dt_declare_xattr_set(env, dt_obj, &info->fti_buf,
XATTR_NAME_FID, 0, th);
if (rc)
GOTO(out_tx, rc);
}
/* We don't need a transno for this operation which will be re-executed
* anyway when the OST_WRITE (with a transno assigned) is replayed */
rc = dt_trans_start_local(env, ofd->ofd_osd , th);
if (rc)
GOTO(out_tx, rc);
/* set uid/gid/projid */
if (la->la_valid) {
rc = dt_attr_set(env, dt_obj, la, th);
if (rc)
GOTO(out_tx, rc);
}
/* set filter fid EA.
* FIXME: it holds read lock of ofd object to modify the XATTR_NAME_FID
* while the write lock should be held. However, it should work because
* write RPCs only modify ff_{parent,layout} and those information will
* be the same from all the write RPCs. The reason that fl is not used
* in dt_xattr_set() is to allow this race. */
if (fl) {
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_NOPFID))
GOTO(out_tx, rc);
info->fti_buf.lb_buf = ff;
info->fti_buf.lb_len = sizeof(*ff);
rc = dt_xattr_set(env, dt_obj, &info->fti_buf, XATTR_NAME_FID,
0, th);
if (rc == 0)
filter_fid_le_to_cpu(&ofd_obj->ofo_ff, ff, sizeof(*ff));
}
GOTO(out_tx, rc);
out_tx:
dt_trans_stop(env, ofd->ofd_osd, th);
out:
la->la_valid = valid;
return rc;
}
int ofd_object_punch(const struct lu_env *env, struct ofd_object *fo,
__u64 start, __u64 end, struct lu_attr *la,
struct filter_fid *ff)
{
struct ofd_thread_info *info = ofd_info(env);
struct ofd_device *ofd = ofd_obj2dev(fo);
struct ofd_mod_data *fmd;
struct dt_object *dob = ofd_object_child(fo);
struct thandle *th;
int ff_needed = 0;
int rc;
ENTRY;
/* we support truncate, not punch yet */
LASSERT(end == OBD_OBJECT_EOF);
fmd = ofd_fmd_get(info->fti_exp, &fo->ofo_header.loh_fid);
if (fmd && fmd->fmd_mactime_xid < info->fti_xid)
fmd->fmd_mactime_xid = info->fti_xid;
ofd_fmd_put(info->fti_exp, fmd);
ofd_write_lock(env, fo);
if (!ofd_object_exists(fo))
GOTO(unlock, rc = -ENOENT);
/* VBR: version recovery check */
rc = ofd_version_get_check(info, fo);
if (rc)
GOTO(unlock, rc);
rc = ofd_attr_handle_ugid(env, fo, la, 0 /* !is_setattr */);
if (rc != 0)
GOTO(unlock, rc);
if (ff != NULL) {
rc = ofd_object_ff_check(env, fo);
if (rc == -ENODATA)
ff_needed = 1;
else if (rc < 0)
GOTO(unlock, rc);
}
th = ofd_trans_create(env, ofd);
if (IS_ERR(th))
GOTO(unlock, rc = PTR_ERR(th));
rc = dt_declare_attr_set(env, dob, la, th);
if (rc)
GOTO(stop, rc);
rc = dt_declare_punch(env, dob, start, OBD_OBJECT_EOF, th);
if (rc)
GOTO(stop, rc);
if (ff_needed) {
info->fti_buf.lb_buf = ff;
info->fti_buf.lb_len = sizeof(*ff);
rc = dt_declare_xattr_set(env, ofd_object_child(fo),
&info->fti_buf, XATTR_NAME_FID, 0,
th);
if (rc)
GOTO(stop, rc);
}
rc = ofd_trans_start(env, ofd, fo, th);
if (rc)
GOTO(stop, rc);
rc = dt_punch(env, dob, start, OBD_OBJECT_EOF, th,
ofd_object_capa(env, fo));
if (rc)
GOTO(stop, rc);
rc = dt_attr_set(env, dob, la, th, ofd_object_capa(env, fo));
if (rc)
GOTO(stop, rc);
if (ff_needed)
rc = dt_xattr_set(env, ofd_object_child(fo), &info->fti_buf,
XATTR_NAME_FID, 0, th, BYPASS_CAPA);
stop:
ofd_trans_stop(env, ofd, th, rc);
unlock:
ofd_write_unlock(env, fo);
RETURN(rc);
}
int ofd_attr_set(const struct lu_env *env, struct ofd_object *fo,
struct lu_attr *la, struct filter_fid *ff)
{
struct ofd_thread_info *info = ofd_info(env);
struct ofd_device *ofd = ofd_obj2dev(fo);
struct thandle *th;
struct ofd_mod_data *fmd;
int ff_needed = 0;
int rc;
ENTRY;
ofd_write_lock(env, fo);
if (!ofd_object_exists(fo))
GOTO(unlock, rc = -ENOENT);
if (la->la_valid & (LA_ATIME | LA_MTIME | LA_CTIME)) {
fmd = ofd_fmd_get(info->fti_exp, &fo->ofo_header.loh_fid);
if (fmd && fmd->fmd_mactime_xid < info->fti_xid)
fmd->fmd_mactime_xid = info->fti_xid;
ofd_fmd_put(info->fti_exp, fmd);
}
/* VBR: version recovery check */
rc = ofd_version_get_check(info, fo);
if (rc)
GOTO(unlock, rc);
rc = ofd_attr_handle_ugid(env, fo, la, 1 /* is_setattr */);
if (rc != 0)
GOTO(unlock, rc);
if (ff != NULL) {
rc = ofd_object_ff_check(env, fo);
if (rc == -ENODATA)
ff_needed = 1;
else if (rc < 0)
GOTO(unlock, rc);
}
th = ofd_trans_create(env, ofd);
if (IS_ERR(th))
GOTO(unlock, rc = PTR_ERR(th));
rc = dt_declare_attr_set(env, ofd_object_child(fo), la, th);
if (rc)
GOTO(stop, rc);
if (ff_needed) {
info->fti_buf.lb_buf = ff;
info->fti_buf.lb_len = sizeof(*ff);
rc = dt_declare_xattr_set(env, ofd_object_child(fo),
&info->fti_buf, XATTR_NAME_FID, 0,
th);
if (rc)
GOTO(stop, rc);
}
rc = ofd_trans_start(env, ofd, la->la_valid & LA_SIZE ? fo : NULL, th);
if (rc)
GOTO(stop, rc);
rc = dt_attr_set(env, ofd_object_child(fo), la, th,
ofd_object_capa(env, fo));
if (rc)
GOTO(stop, rc);
if (ff_needed)
rc = dt_xattr_set(env, ofd_object_child(fo), &info->fti_buf,
XATTR_NAME_FID, 0, th, BYPASS_CAPA);
stop:
ofd_trans_stop(env, ofd, th, rc);
unlock:
ofd_write_unlock(env, fo);
RETURN(rc);
}
/**
* \retval +ve repaired
* \retval 0 no need to repair
* \retval -ve error cases
*/
static int lfsck_namespace_double_scan_one(const struct lu_env *env,
struct lfsck_component *com,
struct dt_object *child, __u8 flags)
{
struct lfsck_thread_info *info = lfsck_env_info(env);
struct lu_attr *la = &info->lti_la;
struct lu_name *cname = &info->lti_name;
struct lu_fid *pfid = &info->lti_fid;
struct lu_fid *cfid = &info->lti_fid2;
struct lfsck_instance *lfsck = com->lc_lfsck;
struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
struct lfsck_namespace *ns = com->lc_file_ram;
struct linkea_data ldata = { 0 };
struct thandle *handle = NULL;
bool locked = false;
bool update = false;
int rc;
ENTRY;
if (com->lc_journal) {
again:
LASSERT(!locked);
update = false;
com->lc_journal = 1;
handle = dt_trans_create(env, lfsck->li_next);
if (IS_ERR(handle))
RETURN(rc = PTR_ERR(handle));
rc = dt_declare_xattr_set(env, child,
lfsck_buf_get_const(env, NULL, DEFAULT_LINKEA_SIZE),
XATTR_NAME_LINK, 0, handle);
if (rc != 0)
GOTO(stop, rc);
rc = dt_trans_start(env, lfsck->li_next, handle);
if (rc != 0)
GOTO(stop, rc);
dt_write_lock(env, child, MOR_TGT_CHILD);
locked = true;
}
if (unlikely(lfsck_is_dead_obj(child)))
GOTO(stop, rc = 0);
rc = dt_attr_get(env, child, la, BYPASS_CAPA);
if (rc == 0)
rc = lfsck_links_read(env, child, &ldata);
if (rc != 0) {
if ((bk->lb_param & LPF_DRYRUN) &&
(rc == -EINVAL || rc == -ENODATA))
rc = 1;
GOTO(stop, rc);
}
linkea_first_entry(&ldata);
while (ldata.ld_lee != NULL) {
struct dt_object *parent = NULL;
rc = lfsck_linkea_entry_unpack(lfsck, &ldata, cname, pfid);
if (rc > 0)
update = true;
if (!fid_is_sane(pfid))
goto shrink;
parent = lfsck_object_find(env, lfsck, pfid);
if (parent == NULL)
goto shrink;
else if (IS_ERR(parent))
GOTO(stop, rc = PTR_ERR(parent));
if (!dt_object_exists(parent))
goto shrink;
/* XXX: Currently, skip remote object, the consistency for
* remote object will be processed in LFSCK phase III. */
if (dt_object_remote(parent)) {
lfsck_object_put(env, parent);
linkea_next_entry(&ldata);
continue;
}
if (unlikely(!dt_try_as_dir(env, parent)))
goto shrink;
/* To guarantee the 'name' is terminated with '0'. */
memcpy(info->lti_key, cname->ln_name, cname->ln_namelen);
info->lti_key[cname->ln_namelen] = 0;
cname->ln_name = info->lti_key;
rc = dt_lookup(env, parent, (struct dt_rec *)cfid,
(const struct dt_key *)cname->ln_name,
BYPASS_CAPA);
if (rc != 0 && rc != -ENOENT) {
lfsck_object_put(env, parent);
GOTO(stop, rc);
}
if (rc == 0) {
if (lu_fid_eq(cfid, lfsck_dto2fid(child))) {
lfsck_object_put(env, parent);
linkea_next_entry(&ldata);
continue;
}
goto shrink;
}
/* If there is no name entry in the parent dir and the object
* link count is less than the linkea entries count, then the
* linkea entry should be removed. */
if (ldata.ld_leh->leh_reccount > la->la_nlink)
goto shrink;
/* XXX: For the case of there is a linkea entry, but without
* name entry pointing to the object and its hard links
* count is not less than the object name entries count,
* then seems we should add the 'missed' name entry back
* to namespace, but before LFSCK phase III finished, we
* do not know whether the object has some inconsistency
* on other MDTs. So now, do NOT add the name entry back
* to the namespace, but keep the linkEA entry. LU-2914 */
lfsck_object_put(env, parent);
linkea_next_entry(&ldata);
continue;
shrink:
if (parent != NULL)
lfsck_object_put(env, parent);
if (bk->lb_param & LPF_DRYRUN)
RETURN(1);
CDEBUG(D_LFSCK, "Remove linkEA: "DFID"[%.*s], "DFID"\n",
PFID(lfsck_dto2fid(child)), cname->ln_namelen, cname->ln_name,
PFID(pfid));
linkea_del_buf(&ldata, cname);
update = true;
}
if (update) {
if (!com->lc_journal) {
com->lc_journal = 1;
goto again;
}
rc = lfsck_links_write(env, child, &ldata, handle);
}
GOTO(stop, rc);
stop:
if (locked) {
/* XXX: For the case linkea entries count does not match the object hard
* links count, we cannot update the later one simply. Before LFSCK
* phase III finished, we cannot know whether there are some remote
* name entries to be repaired or not. LU-2914 */
if (rc == 0 && !lfsck_is_dead_obj(child) &&
ldata.ld_leh != NULL &&
ldata.ld_leh->leh_reccount != la->la_nlink)
CWARN("%s: the object "DFID" linkEA entry count %u "
"may not match its hardlink count %u\n",
lfsck_lfsck2name(lfsck), PFID(cfid),
ldata.ld_leh->leh_reccount, la->la_nlink);
dt_write_unlock(env, child);
}
if (handle != NULL)
dt_trans_stop(env, lfsck->li_next, handle);
if (rc == 0 && update) {
ns->ln_objs_nlink_repaired++;
rc = 1;
}
return rc;
}
static int
ofd_write_attr_set(const struct lu_env *env, struct ofd_device *ofd,
struct ofd_object *ofd_obj, struct lu_attr *la,
struct filter_fid *ff)
{
struct ofd_thread_info *info = ofd_info(env);
__u64 valid = la->la_valid;
int rc;
struct thandle *th;
struct dt_object *dt_obj;
int ff_needed = 0;
ENTRY;
LASSERT(la);
dt_obj = ofd_object_child(ofd_obj);
LASSERT(dt_obj != NULL);
la->la_valid &= LA_UID | LA_GID;
rc = ofd_attr_handle_ugid(env, ofd_obj, la, 0 /* !is_setattr */);
if (rc != 0)
GOTO(out, rc);
if (ff != NULL) {
rc = ofd_object_ff_check(env, ofd_obj);
if (rc == -ENODATA)
ff_needed = 1;
else if (rc < 0)
GOTO(out, rc);
}
if (!la->la_valid && !ff_needed)
/* no attributes to set */
GOTO(out, rc = 0);
th = ofd_trans_create(env, ofd);
if (IS_ERR(th))
GOTO(out, rc = PTR_ERR(th));
if (la->la_valid) {
rc = dt_declare_attr_set(env, dt_obj, la, th);
if (rc)
GOTO(out_tx, rc);
}
if (ff_needed) {
info->fti_buf.lb_buf = ff;
info->fti_buf.lb_len = sizeof(*ff);
rc = dt_declare_xattr_set(env, dt_obj, &info->fti_buf,
XATTR_NAME_FID, 0, th);
if (rc)
GOTO(out_tx, rc);
}
/* We don't need a transno for this operation which will be re-executed
* anyway when the OST_WRITE (with a transno assigned) is replayed */
rc = dt_trans_start_local(env, ofd->ofd_osd , th);
if (rc)
GOTO(out_tx, rc);
/* set uid/gid */
if (la->la_valid) {
rc = dt_attr_set(env, dt_obj, la, th,
ofd_object_capa(env, ofd_obj));
if (rc)
GOTO(out_tx, rc);
}
/* set filter fid EA */
if (ff_needed) {
rc = dt_xattr_set(env, dt_obj, &info->fti_buf, XATTR_NAME_FID,
0, th, BYPASS_CAPA);
if (rc)
GOTO(out_tx, rc);
}
EXIT;
out_tx:
dt_trans_stop(env, ofd->ofd_osd, th);
out:
la->la_valid = valid;
return rc;
}