* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* Lustre Metadata Server (mdd) routines
*
- * Author: Wang Di <wangdi@clusterfs.com>
+ * Author: Wang Di <wangdi@intel.com>
*/
#define DEBUG_SUBSYSTEM S_MDS
sizeof(dotdot) - 1
};
-static int __mdd_lookup(const struct lu_env *env, struct md_object *pobj,
- const struct lu_name *lname, struct lu_fid* fid,
- int mask);
-static int mdd_declare_links_add(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- struct thandle *handle);
-static inline int mdd_links_add(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- const struct lu_fid *pfid,
- const struct lu_name *lname,
- struct thandle *handle, int first);
-static inline int mdd_links_del(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- const struct lu_fid *pfid,
- const struct lu_name *lname,
- struct thandle *handle);
-static int mdd_links_rename(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- const struct lu_fid *oldpfid,
- const struct lu_name *oldlname,
- const struct lu_fid *newpfid,
- const struct lu_name *newlname,
- struct thandle *handle,
- int first, int check);
+static inline int
+mdd_name_check(struct mdd_device *m, const struct lu_name *ln)
+{
+ if (!lu_name_is_valid(ln))
+ return -EINVAL;
+ else if (ln->ln_namelen > m->mdd_dt_conf.ddp_max_name_len)
+ return -ENAMETOOLONG;
+ else
+ return 0;
+}
+/* Get FID from name and parent */
static int
-__mdd_lookup_locked(const struct lu_env *env, struct md_object *pobj,
- const struct lu_name *lname, struct lu_fid* fid, int mask)
+__mdd_lookup(const struct lu_env *env, struct md_object *pobj,
+ const struct lu_attr *pattr, const struct lu_name *lname,
+ struct lu_fid* fid, int mask)
{
- const char *name = lname->ln_name;
- struct mdd_object *mdd_obj = md2mdd_obj(pobj);
- struct dynlock_handle *dlh;
+ const char *name = lname->ln_name;
+ const struct dt_key *key = (const struct dt_key *)name;
+ struct mdd_object *mdd_obj = md2mdd_obj(pobj);
+ struct mdd_device *m = mdo2mdd(pobj);
+ struct dt_object *dir = mdd_object_child(mdd_obj);
int rc;
+ ENTRY;
- dlh = mdd_pdo_read_lock(env, mdd_obj, name, MOR_TGT_PARENT);
- if (unlikely(dlh == NULL))
- return -ENOMEM;
- rc = __mdd_lookup(env, pobj, lname, fid, mask);
- mdd_pdo_read_unlock(env, mdd_obj, dlh);
+ if (unlikely(mdd_is_dead_obj(mdd_obj)))
+ RETURN(-ESTALE);
- return rc;
+ if (mdd_object_remote(mdd_obj)) {
+ CDEBUG(D_INFO, "%s: Object "DFID" locates on remote server\n",
+ mdd2obd_dev(m)->obd_name, PFID(mdo2fid(mdd_obj)));
+ } else if (!mdd_object_exists(mdd_obj)) {
+ RETURN(-ESTALE);
+ }
+
+ rc = mdd_permission_internal_locked(env, mdd_obj, pattr, mask,
+ MOR_TGT_PARENT);
+ if (rc)
+ RETURN(rc);
+
+ if (likely(S_ISDIR(mdd_object_type(mdd_obj)) &&
+ dt_try_as_dir(env, dir))) {
+
+ rc = dir->do_index_ops->dio_lookup(env, dir,
+ (struct dt_rec *)fid, key,
+ mdd_object_capa(env, mdd_obj));
+ if (rc > 0)
+ rc = 0;
+ else if (rc == 0)
+ rc = -ENOENT;
+ } else
+ rc = -ENOTDIR;
+
+ RETURN(rc);
}
int mdd_lookup(const struct lu_env *env,
- struct md_object *pobj, const struct lu_name *lname,
- struct lu_fid* fid, struct md_op_spec *spec)
+ struct md_object *pobj, const struct lu_name *lname,
+ struct lu_fid *fid, struct md_op_spec *spec)
{
+ struct lu_attr *pattr = MDD_ENV_VAR(env, pattr);
int rc;
ENTRY;
- rc = __mdd_lookup_locked(env, pobj, lname, fid, MAY_EXEC);
+
+ rc = mdd_la_get(env, md2mdd_obj(pobj), pattr, BYPASS_CAPA);
+ if (rc != 0)
+ RETURN(rc);
+
+ rc = __mdd_lookup(env, pobj, pattr, lname, fid, MAY_EXEC);
RETURN(rc);
}
-static int mdd_parent_fid(const struct lu_env *env, struct mdd_object *obj,
- struct lu_fid *fid)
+static inline int mdd_parent_fid(const struct lu_env *env,
+ struct mdd_object *obj,
+ const struct lu_attr *attr,
+ struct lu_fid *fid)
{
- return __mdd_lookup_locked(env, &obj->mod_obj, &lname_dotdot, fid, 0);
+ return __mdd_lookup(env, &obj->mod_obj, attr, &lname_dotdot, fid, 0);
}
/*
* otherwise: values < 0, errors.
*/
static int mdd_is_parent(const struct lu_env *env,
- struct mdd_device *mdd,
- struct mdd_object *p1,
- const struct lu_fid *lf,
- struct lu_fid *pf)
+ struct mdd_device *mdd,
+ struct mdd_object *p1,
+ const struct lu_attr *attr,
+ const struct lu_fid *lf,
+ struct lu_fid *pf)
{
struct mdd_object *parent = NULL;
struct lu_fid *pfid;
RETURN(0);
for(;;) {
- /* this is done recursively, bypass capa for each obj */
- mdd_set_capainfo(env, 4, p1, BYPASS_CAPA);
- rc = mdd_parent_fid(env, p1, pfid);
- if (rc)
- GOTO(out, rc);
+ /* this is done recursively, bypass capa for each obj */
+ mdd_set_capainfo(env, 4, p1, BYPASS_CAPA);
+ rc = mdd_parent_fid(env, p1, attr, pfid);
+ if (rc)
+ GOTO(out, rc);
if (mdd_is_root(mdd, pfid))
GOTO(out, rc = 0);
+ if (lu_fid_eq(pfid, &mdd->mdd_local_root_fid))
+ GOTO(out, rc = 0);
if (lu_fid_eq(pfid, lf))
GOTO(out, rc = 1);
if (parent)
mdd_object_put(env, parent);
- parent = mdd_object_find(env, mdd, pfid);
-
- /* cross-ref parent */
- if (parent == NULL) {
- if (pf != NULL)
- *pf = *pfid;
- GOTO(out, rc = -EREMOTE);
- } else if (IS_ERR(parent))
- GOTO(out, rc = PTR_ERR(parent));
- p1 = parent;
+
+ parent = mdd_object_find(env, mdd, pfid);
+ if (IS_ERR(parent)) {
+ GOTO(out, rc = PTR_ERR(parent));
+ } else if (mdd_object_remote(parent)) {
+ /*FIXME: Because of the restriction of rename in Phase I.
+ * If the parent is remote, we just assumed lf is not the
+ * parent of P1 for now */
+ GOTO(out, rc = 0);
+ }
+ p1 = parent;
}
EXIT;
out:
* returns < 0: if error
*/
int mdd_is_subdir(const struct lu_env *env, struct md_object *mo,
- const struct lu_fid *fid, struct lu_fid *sfid)
+ const struct lu_fid *fid, struct lu_fid *sfid)
{
- struct mdd_device *mdd = mdo2mdd(mo);
- int rc;
- ENTRY;
+ struct mdd_device *mdd = mdo2mdd(mo);
+ struct lu_attr *attr = MDD_ENV_VAR(env, cattr);
+ int rc;
+ ENTRY;
- if (!S_ISDIR(mdd_object_type(md2mdd_obj(mo))))
- RETURN(0);
+ if (!S_ISDIR(mdd_object_type(md2mdd_obj(mo))))
+ RETURN(0);
- rc = mdd_is_parent(env, mdd, md2mdd_obj(mo), fid, sfid);
- if (rc == 0) {
- /* found root */
- fid_zero(sfid);
- } else if (rc == 1) {
- /* found @fid is parent */
- *sfid = *fid;
- rc = 0;
- }
- RETURN(rc);
+ rc = mdd_la_get(env, md2mdd_obj(mo), attr, BYPASS_CAPA);
+ if (rc != 0)
+ RETURN(rc);
+
+ rc = mdd_is_parent(env, mdd, md2mdd_obj(mo), attr, fid, sfid);
+ if (rc == 0) {
+ /* found root */
+ fid_zero(sfid);
+ } else if (rc == 1) {
+ /* found @fid is parent */
+ *sfid = *fid;
+ rc = 0;
+ }
+ RETURN(rc);
}
/*
static int mdd_dir_is_empty(const struct lu_env *env,
struct mdd_object *dir)
{
- struct dt_it *it;
- struct dt_object *obj;
- const struct dt_it_ops *iops;
- int result;
- ENTRY;
+ struct dt_it *it;
+ struct dt_object *obj;
+ const struct dt_it_ops *iops;
+ int result;
+ ENTRY;
- obj = mdd_object_child(dir);
- if (!dt_try_as_dir(env, obj))
- RETURN(-ENOTDIR);
-
- iops = &obj->do_index_ops->dio_it;
- it = iops->init(env, obj, LUDA_64BITHASH, BYPASS_CAPA);
- if (!IS_ERR(it)) {
- result = iops->get(env, it, (const void *)"");
- if (result > 0) {
- int i;
- for (result = 0, i = 0; result == 0 && i < 3; ++i)
- result = iops->next(env, it);
- if (result == 0)
- result = -ENOTEMPTY;
- else if (result == +1)
- result = 0;
- } else if (result == 0)
- /*
- * Huh? Index contains no zero key?
- */
- result = -EIO;
-
- iops->put(env, it);
- iops->fini(env, it);
- } else
- result = PTR_ERR(it);
- RETURN(result);
+ obj = mdd_object_child(dir);
+ if (!dt_try_as_dir(env, obj))
+ RETURN(-ENOTDIR);
+
+ iops = &obj->do_index_ops->dio_it;
+ it = iops->init(env, obj, LUDA_64BITHASH, BYPASS_CAPA);
+ if (!IS_ERR(it)) {
+ result = iops->get(env, it, (const struct dt_key *)"");
+ if (result > 0) {
+ int i;
+ for (result = 0, i = 0; result == 0 && i < 3; ++i)
+ result = iops->next(env, it);
+ if (result == 0)
+ result = -ENOTEMPTY;
+ else if (result == 1)
+ result = 0;
+ } else if (result == 0)
+ /*
+ * Huh? Index contains no zero key?
+ */
+ result = -EIO;
+
+ iops->put(env, it);
+ iops->fini(env, it);
+ } else
+ result = PTR_ERR(it);
+ RETURN(result);
}
-static int __mdd_may_link(const struct lu_env *env, struct mdd_object *obj)
+static int __mdd_may_link(const struct lu_env *env, struct mdd_object *obj,
+ const struct lu_attr *la)
{
- struct mdd_device *m = mdd_obj2mdd_dev(obj);
- struct lu_attr *la = &mdd_env_info(env)->mti_la;
- int rc;
- ENTRY;
+ struct mdd_device *m = mdd_obj2mdd_dev(obj);
+ ENTRY;
- rc = mdd_la_get(env, obj, la, BYPASS_CAPA);
- if (rc)
- RETURN(rc);
+ LASSERT(la != NULL);
- /*
- * Subdir count limitation can be broken through.
- */
- if (la->la_nlink >= m->mdd_dt_conf.ddp_max_nlink &&
- !S_ISDIR(la->la_mode))
- RETURN(-EMLINK);
- else
- RETURN(0);
+ if (!S_ISDIR(la->la_mode))
+ RETURN(0);
+
+ /*
+ * Subdir count limitation can be broken through.
+ */
+ if (la->la_nlink >= m->mdd_dt_conf.ddp_max_nlink)
+ RETURN(-EMLINK);
+ else
+ RETURN(0);
}
/*
* Check whether it may create the cobj under the pobj.
* cobj maybe NULL
*/
-int mdd_may_create(const struct lu_env *env, struct mdd_object *pobj,
- struct mdd_object *cobj, int check_perm, int check_nlink)
+int mdd_may_create(const struct lu_env *env,
+ struct mdd_object *pobj, const struct lu_attr *pattr,
+ struct mdd_object *cobj, bool check_perm, bool check_nlink)
{
- int rc = 0;
- ENTRY;
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct lu_buf *xbuf;
+ int rc = 0;
+ ENTRY;
- if (cobj && mdd_object_exists(cobj))
- RETURN(-EEXIST);
+ if (cobj && mdd_object_exists(cobj))
+ RETURN(-EEXIST);
- if (mdd_is_dead_obj(pobj))
- RETURN(-ENOENT);
+ if (mdd_is_dead_obj(pobj))
+ RETURN(-ENOENT);
- if (check_perm)
- rc = mdd_permission_internal_locked(env, pobj, NULL,
- MAY_WRITE | MAY_EXEC,
- MOR_TGT_PARENT);
- if (!rc && check_nlink)
- rc = __mdd_may_link(env, pobj);
+ /* If the parent is a sub-stripe, check whether it is dead */
+ xbuf = mdd_buf_get(env, info->mti_key, sizeof(info->mti_key));
+ rc = mdo_xattr_get(env, pobj, xbuf, XATTR_NAME_LMV,
+ mdd_object_capa(env, pobj));
+ if (unlikely(rc > 0)) {
+ struct lmv_mds_md_v1 *lmv1 = xbuf->lb_buf;
- RETURN(rc);
+ if (le32_to_cpu(lmv1->lmv_magic) == LMV_MAGIC_STRIPE &&
+ le32_to_cpu(lmv1->lmv_hash_type) & LMV_HASH_FLAG_DEAD)
+ RETURN(-ESTALE);
+ }
+ rc = 0;
+
+ if (check_perm)
+ rc = mdd_permission_internal_locked(env, pobj, pattr,
+ MAY_WRITE | MAY_EXEC,
+ MOR_TGT_PARENT);
+ if (!rc && check_nlink)
+ rc = __mdd_may_link(env, pobj, pattr);
+
+ RETURN(rc);
}
/*
* Check whether can unlink from the pobj in the case of "cobj == NULL".
*/
int mdd_may_unlink(const struct lu_env *env, struct mdd_object *pobj,
- const struct lu_attr *attr)
+ const struct lu_attr *pattr, const struct lu_attr *attr)
{
- int rc;
- ENTRY;
+ int rc;
+ ENTRY;
- if (mdd_is_dead_obj(pobj))
- RETURN(-ENOENT);
+ if (mdd_is_dead_obj(pobj))
+ RETURN(-ENOENT);
if ((attr->la_valid & LA_FLAGS) &&
(attr->la_flags & (LUSTRE_APPEND_FL | LUSTRE_IMMUTABLE_FL)))
- RETURN(-EPERM);
+ RETURN(-EPERM);
- rc = mdd_permission_internal_locked(env, pobj, NULL,
- MAY_WRITE | MAY_EXEC,
- MOR_TGT_PARENT);
- if (rc)
- RETURN(rc);
+ rc = mdd_permission_internal_locked(env, pobj, pattr,
+ MAY_WRITE | MAY_EXEC,
+ MOR_TGT_PARENT);
+ if (rc)
+ RETURN(rc);
- if (mdd_is_append(pobj))
- RETURN(-EPERM);
+ if (mdd_is_append(pobj))
+ RETURN(-EPERM);
- RETURN(rc);
+ RETURN(rc);
}
/*
*/
static inline int mdd_is_sticky(const struct lu_env *env,
struct mdd_object *pobj,
- struct mdd_object *cobj)
+ const struct lu_attr *pattr,
+ struct mdd_object *cobj,
+ const struct lu_attr *cattr)
{
- struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
struct lu_ucred *uc = lu_ucred_assert(env);
- int rc;
-
- if (pobj) {
- rc = mdd_la_get(env, pobj, tmp_la, BYPASS_CAPA);
- if (rc)
- return rc;
- if (!(tmp_la->la_mode & S_ISVTX) ||
- (tmp_la->la_uid == uc->uc_fsuid))
+ if (pobj != NULL) {
+ LASSERT(pattr != NULL);
+ if (!(pattr->la_mode & S_ISVTX) ||
+ (pattr->la_uid == uc->uc_fsuid))
return 0;
}
- rc = mdd_la_get(env, cobj, tmp_la, BYPASS_CAPA);
- if (rc)
- return rc;
-
- if (tmp_la->la_uid == uc->uc_fsuid)
+ LASSERT(cattr != NULL);
+ if (cattr->la_uid == uc->uc_fsuid)
return 0;
- return !mdd_capable(uc, CFS_CAP_FOWNER);
+ return !md_capable(uc, CFS_CAP_FOWNER);
+}
+
+static int mdd_may_delete_entry(const struct lu_env *env,
+ struct mdd_object *pobj,
+ const struct lu_attr *pattr,
+ int check_perm)
+{
+ ENTRY;
+
+ LASSERT(pobj != NULL);
+ if (!mdd_object_exists(pobj))
+ RETURN(-ENOENT);
+
+ if (mdd_is_dead_obj(pobj))
+ RETURN(-ENOENT);
+
+ if (check_perm) {
+ int rc;
+ rc = mdd_permission_internal_locked(env, pobj, pattr,
+ MAY_WRITE | MAY_EXEC,
+ MOR_TGT_PARENT);
+ if (rc)
+ RETURN(rc);
+ }
+
+ if (mdd_is_append(pobj))
+ RETURN(-EPERM);
+
+ RETURN(0);
}
/*
* Check whether it may delete the cobj from the pobj.
* pobj maybe NULL
*/
-int mdd_may_delete(const struct lu_env *env, struct mdd_object *pobj,
- struct mdd_object *cobj, struct lu_attr *cattr,
- struct lu_attr *src_attr, int check_perm, int check_empty)
+int mdd_may_delete(const struct lu_env *env, struct mdd_object *tpobj,
+ const struct lu_attr *tpattr, struct mdd_object *tobj,
+ const struct lu_attr *tattr, const struct lu_attr *cattr,
+ int check_perm, int check_empty)
{
- int rc = 0;
- ENTRY;
-
- LASSERT(cobj);
- if (!mdd_object_exists(cobj))
- RETURN(-ENOENT);
-
- if (mdd_is_dead_obj(cobj))
- RETURN(-ESTALE);
+ int rc = 0;
+ ENTRY;
- if (pobj) {
- if (!mdd_object_exists(pobj))
- RETURN(-ENOENT);
+ if (tpobj) {
+ LASSERT(tpattr != NULL);
+ rc = mdd_may_delete_entry(env, tpobj, tpattr, check_perm);
+ if (rc != 0)
+ RETURN(rc);
+ }
- if (mdd_is_dead_obj(pobj))
- RETURN(-ENOENT);
+ if (tobj == NULL)
+ RETURN(0);
- if (check_perm) {
- rc = mdd_permission_internal_locked(env, pobj, NULL,
- MAY_WRITE | MAY_EXEC,
- MOR_TGT_PARENT);
- if (rc)
- RETURN(rc);
- }
+ if (!mdd_object_exists(tobj))
+ RETURN(-ENOENT);
- if (mdd_is_append(pobj))
- RETURN(-EPERM);
- }
+ if (mdd_is_dead_obj(tobj))
+ RETURN(-ESTALE);
- if (mdd_is_sticky(env, pobj, cobj))
- RETURN(-EPERM);
+ if (mdd_is_sticky(env, tpobj, tpattr, tobj, tattr))
+ RETURN(-EPERM);
- if (mdd_is_immutable(cobj) || mdd_is_append(cobj))
- RETURN(-EPERM);
+ if (mdd_is_immutable(tobj) || mdd_is_append(tobj))
+ RETURN(-EPERM);
- if ((cattr->la_valid & LA_FLAGS) &&
- (cattr->la_flags & (LUSTRE_APPEND_FL | LUSTRE_IMMUTABLE_FL)))
- RETURN(-EPERM);
+ if ((tattr->la_valid & LA_FLAGS) &&
+ (tattr->la_flags & (LUSTRE_APPEND_FL | LUSTRE_IMMUTABLE_FL)))
+ RETURN(-EPERM);
/* additional check the rename case */
- if (src_attr) {
- if (S_ISDIR(src_attr->la_mode)) {
- struct mdd_device *mdd = mdo2mdd(&cobj->mod_obj);
+ if (cattr) {
+ if (S_ISDIR(cattr->la_mode)) {
+ struct mdd_device *mdd = mdo2mdd(&tobj->mod_obj);
- if (!S_ISDIR(cattr->la_mode))
+ if (!S_ISDIR(tattr->la_mode))
RETURN(-ENOTDIR);
- if (lu_fid_eq(mdo2fid(cobj), &mdd->mdd_root_fid))
+ if (lu_fid_eq(mdo2fid(tobj), &mdd->mdd_root_fid))
RETURN(-EBUSY);
- } else if (S_ISDIR(cattr->la_mode))
+ } else if (S_ISDIR(tattr->la_mode))
RETURN(-EISDIR);
}
- if (S_ISDIR(cattr->la_mode) && check_empty)
- rc = mdd_dir_is_empty(env, cobj);
+ if (S_ISDIR(tattr->la_mode) && check_empty)
+ rc = mdd_dir_is_empty(env, tobj);
- RETURN(rc);
+ RETURN(rc);
}
/*
* tgt maybe NULL
* has mdd_write_lock on src already, but not on tgt yet
*/
-int mdd_link_sanity_check(const struct lu_env *env,
- struct mdd_object *tgt_obj,
- const struct lu_name *lname,
- struct mdd_object *src_obj)
+static int mdd_link_sanity_check(const struct lu_env *env,
+ struct mdd_object *tgt_obj,
+ const struct lu_attr *tattr,
+ const struct lu_name *lname,
+ struct mdd_object *src_obj,
+ const struct lu_attr *cattr)
{
struct mdd_device *m = mdd_obj2mdd_dev(src_obj);
int rc = 0;
RETURN(-ESTALE);
/* Local ops, no lookup before link, check filename length here. */
- if (lname && (lname->ln_namelen > m->mdd_dt_conf.ddp_max_name_len))
- RETURN(-ENAMETOOLONG);
+ rc = mdd_name_check(m, lname);
+ if (rc < 0)
+ RETURN(rc);
if (mdd_is_immutable(src_obj) || mdd_is_append(src_obj))
RETURN(-EPERM);
if (S_ISDIR(mdd_object_type(src_obj)))
RETURN(-EPERM);
- LASSERT(src_obj != tgt_obj);
- if (tgt_obj) {
- rc = mdd_may_create(env, tgt_obj, NULL, 1, 0);
- if (rc)
- RETURN(rc);
- }
+ LASSERT(src_obj != tgt_obj);
+ if (tgt_obj) {
+ rc = mdd_may_create(env, tgt_obj, tattr, NULL, true, false);
+ if (rc)
+ RETURN(rc);
+ }
- rc = __mdd_may_link(env, src_obj);
+ rc = __mdd_may_link(env, src_obj, cattr);
- RETURN(rc);
+ RETURN(rc);
}
static int __mdd_index_delete_only(const struct lu_env *env, struct mdd_object *pobj,
RETURN(rc);
}
-int mdd_declare_llog_record(const struct lu_env *env, struct mdd_device *mdd,
- int reclen, struct thandle *handle)
-{
- int rc;
-
- /* XXX: this is a temporary solution to declare llog changes
- * will be fixed in 2.3 with new llog implementation */
-
- LASSERT(mdd->mdd_capa);
-
- /* XXX: Since we use the 'mdd_capa' as fake llog object here, we
- * have to set the parameter 'size' as INT_MAX or 0 to inform
- * OSD that this record write is for a llog write or catalog
- * header update, and osd declare function will reserve less
- * credits for optimization purpose.
- *
- * Reserve 6 blocks for a llog write, since the llog file is
- * usually small, reserve 2 blocks for catalog header update,
- * because we know for sure that catalog header is already
- * allocated.
- *
- * This hack should be removed in 2.3.
- */
-
- /* record itself */
- rc = dt_declare_record_write(env, mdd->mdd_capa,
- DECLARE_LLOG_WRITE, 0, handle);
- if (rc)
- return rc;
-
- /* header will be updated as well */
- rc = dt_declare_record_write(env, mdd->mdd_capa,
- DECLARE_LLOG_WRITE, 0, handle);
- if (rc)
- return rc;
-
- /* also we should be able to create new plain log */
- rc = dt_declare_create(env, mdd->mdd_capa, NULL, NULL, NULL, handle);
- if (rc)
- return rc;
-
- /* new record referencing new plain llog */
- rc = dt_declare_record_write(env, mdd->mdd_capa,
- DECLARE_LLOG_WRITE, 0, handle);
- if (rc)
- return rc;
-
- /* catalog's header will be updated as well */
- rc = dt_declare_record_write(env, mdd->mdd_capa,
- DECLARE_LLOG_REWRITE, 0, handle);
-
- return rc;
-}
-
int mdd_declare_changelog_store(const struct lu_env *env,
struct mdd_device *mdd,
const struct lu_name *fname,
reclen = llog_data_len(sizeof(*rec) +
(fname != NULL ? fname->ln_namelen : 0));
- buf = mdd_buf_alloc(env, reclen);
+ buf = lu_buf_check_and_alloc(&mdd_env_info(env)->mti_big_buf, reclen);
if (buf->lb_buf == NULL)
return -ENOMEM;
reclen = llog_data_len(sizeof(*rec) +
(tname != NULL ? tname->ln_namelen : 0) +
(sname != NULL ? 1 + sname->ln_namelen : 0));
- buf = mdd_buf_alloc(env, reclen);
+ buf = lu_buf_check_and_alloc(&mdd_env_info(env)->mti_big_buf, reclen);
if (buf->lb_buf == NULL)
return -ENOMEM;
if (ctxt == NULL)
return -ENXIO;
- rc = llog_add(env, ctxt->loc_handle, &rec->cr_hdr, NULL, NULL, th);
+ rc = llog_add(env, ctxt->loc_handle, &rec->cr_hdr, NULL, th);
llog_ctxt_put(ctxt);
if (rc > 0)
rc = 0;
* this will hopefully be fixed in llog rewrite
* \retval 0 ok
*/
-int mdd_changelog_ext_store(const struct lu_env *env, struct mdd_device *mdd,
- struct llog_changelog_ext_rec *rec,
- struct thandle *th)
+static int
+mdd_changelog_ext_store(const struct lu_env *env, struct mdd_device *mdd,
+ struct llog_changelog_ext_rec *rec, struct thandle *th)
{
struct obd_device *obd = mdd2obd_dev(mdd);
struct llog_ctxt *ctxt;
return -ENXIO;
/* nested journal transaction */
- rc = llog_add(env, ctxt->loc_handle, &rec->cr_hdr, NULL, NULL, th);
+ rc = llog_add(env, ctxt->loc_handle, &rec->cr_hdr, NULL, th);
llog_ctxt_put(ctxt);
if (rc > 0)
rc = 0;
* \param tname - target name string
* \param handle - transacion handle
*/
-static int mdd_changelog_ns_store(const struct lu_env *env,
- struct mdd_device *mdd,
- enum changelog_rec_type type,
- unsigned flags,
- struct mdd_object *target,
- struct mdd_object *parent,
- const struct lu_name *tname,
- struct thandle *handle)
+int mdd_changelog_ns_store(const struct lu_env *env, struct mdd_device *mdd,
+ enum changelog_rec_type type, unsigned flags,
+ struct mdd_object *target, struct mdd_object *parent,
+ const struct lu_name *tname, struct thandle *handle)
{
struct llog_changelog_rec *rec;
struct lu_buf *buf;
LASSERT(handle != NULL);
reclen = llog_data_len(sizeof(*rec) + tname->ln_namelen);
- buf = mdd_buf_alloc(env, reclen);
+ buf = lu_buf_check_and_alloc(&mdd_env_info(env)->mti_big_buf, reclen);
if (buf->lb_buf == NULL)
RETURN(-ENOMEM);
rec = buf->lb_buf;
reclen = llog_data_len(sizeof(*rec) +
sname != NULL ? 1 + sname->ln_namelen : 0);
- buf = mdd_buf_alloc(env, reclen);
+ buf = lu_buf_check_and_alloc(&mdd_env_info(env)->mti_big_buf, reclen);
if (buf->lb_buf == NULL)
RETURN(-ENOMEM);
rec = buf->lb_buf;
return 0;
}
-static int mdd_declare_link(const struct lu_env *env,
- struct mdd_device *mdd,
- struct mdd_object *p,
- struct mdd_object *c,
- const struct lu_name *name,
- struct thandle *handle)
+static int __mdd_links_add(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ struct linkea_data *ldata,
+ const struct lu_name *lname,
+ const struct lu_fid *pfid,
+ int first, int check)
{
- int rc;
-
- rc = mdo_declare_index_insert(env, p, mdo2fid(c), name->ln_name,handle);
- if (rc)
- return rc;
+ int rc;
- rc = mdo_declare_ref_add(env, c, handle);
- if (rc)
- return rc;
+ if (ldata->ld_leh == NULL) {
+ rc = first ? -ENODATA : mdd_links_read(env, mdd_obj, ldata);
+ if (rc) {
+ if (rc != -ENODATA)
+ return rc;
+ rc = linkea_data_new(ldata,
+ &mdd_env_info(env)->mti_link_buf);
+ if (rc)
+ return rc;
+ }
+ }
- rc = mdo_declare_attr_set(env, p, NULL, handle);
- if (rc)
- return rc;
+ if (check) {
+ rc = linkea_links_find(ldata, lname, pfid);
+ if (rc && rc != -ENOENT)
+ return rc;
+ if (rc == 0)
+ return -EEXIST;
+ }
- rc = mdo_declare_attr_set(env, c, NULL, handle);
- if (rc)
- return rc;
+ if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LINKEA_MORE)) {
+ struct lu_fid *tfid = &mdd_env_info(env)->mti_fid2;
- rc = mdd_declare_links_add(env, c, handle);
- if (rc)
- return rc;
+ *tfid = *pfid;
+ tfid->f_ver = ~0;
+ linkea_add_buf(ldata, lname, tfid);
+ }
- rc = mdd_declare_changelog_store(env, mdd, name, handle);
+ if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LINKEA_MORE2))
+ linkea_add_buf(ldata, lname, pfid);
- return rc;
+ return linkea_add_buf(ldata, lname, pfid);
}
-static int mdd_link(const struct lu_env *env, struct md_object *tgt_obj,
- struct md_object *src_obj, const struct lu_name *lname,
- struct md_attr *ma)
+static int __mdd_links_del(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ struct linkea_data *ldata,
+ const struct lu_name *lname,
+ const struct lu_fid *pfid)
{
- const char *name = lname->ln_name;
- struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
- struct mdd_object *mdd_tobj = md2mdd_obj(tgt_obj);
- struct mdd_object *mdd_sobj = md2mdd_obj(src_obj);
- struct mdd_device *mdd = mdo2mdd(src_obj);
- struct dynlock_handle *dlh;
- struct thandle *handle;
- int rc;
- ENTRY;
+ int rc;
- handle = mdd_trans_create(env, mdd);
- if (IS_ERR(handle))
- GOTO(out_pending, rc = PTR_ERR(handle));
+ if (ldata->ld_leh == NULL) {
+ rc = mdd_links_read(env, mdd_obj, ldata);
+ if (rc)
+ return rc;
+ }
- rc = mdd_declare_link(env, mdd, mdd_tobj, mdd_sobj, lname, handle);
- if (rc)
- GOTO(stop, rc);
+ rc = linkea_links_find(ldata, lname, pfid);
+ if (rc)
+ return rc;
- rc = mdd_trans_start(env, mdd, handle);
- if (rc)
- GOTO(stop, rc);
+ linkea_del_buf(ldata, lname);
+ return 0;
+}
- dlh = mdd_pdo_write_lock(env, mdd_tobj, name, MOR_TGT_CHILD);
- if (dlh == NULL)
- GOTO(out_trans, rc = -ENOMEM);
- mdd_write_lock(env, mdd_sobj, MOR_TGT_CHILD);
+static int mdd_linkea_prepare(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ const struct lu_fid *oldpfid,
+ const struct lu_name *oldlname,
+ const struct lu_fid *newpfid,
+ const struct lu_name *newlname,
+ int first, int check,
+ struct linkea_data *ldata)
+{
+ int rc = 0;
+ int rc2 = 0;
+ ENTRY;
- rc = mdd_link_sanity_check(env, mdd_tobj, lname, mdd_sobj);
- if (rc)
- GOTO(out_unlock, rc);
-
- rc = mdo_ref_add(env, mdd_sobj, handle);
- if (rc)
- GOTO(out_unlock, rc);
+ if (OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF))
+ return 0;
+ LASSERT(oldpfid != NULL || newpfid != NULL);
- rc = __mdd_index_insert_only(env, mdd_tobj, mdo2fid(mdd_sobj),
- name, handle,
- mdd_object_capa(env, mdd_tobj));
- if (rc != 0) {
- mdo_ref_del(env, mdd_sobj, handle);
- GOTO(out_unlock, rc);
+ if (mdd_obj->mod_flags & DEAD_OBJ) {
+ /* Prevent linkea to be updated which is NOT necessary. */
+ ldata->ld_reclen = 0;
+ /* No more links, don't bother */
+ RETURN(0);
}
- LASSERT(ma->ma_attr.la_valid & LA_CTIME);
- la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
+ if (oldpfid != NULL) {
+ rc = __mdd_links_del(env, mdd_obj, ldata, oldlname, oldpfid);
+ if (rc) {
+ if ((check == 1) ||
+ (rc != -ENODATA && rc != -ENOENT))
+ RETURN(rc);
+ /* No changes done. */
+ rc = 0;
+ }
+ }
- la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal(env, mdd_tobj, la, handle, 0);
- if (rc)
- GOTO(out_unlock, rc);
+ /* If renaming, add the new record */
+ if (newpfid != NULL) {
+ /* even if the add fails, we still delete the out-of-date
+ * old link */
+ rc2 = __mdd_links_add(env, mdd_obj, ldata, newlname, newpfid,
+ first, check);
+ }
- la->la_valid = LA_CTIME;
- rc = mdd_attr_check_set_internal(env, mdd_sobj, la, handle, 0);
- if (rc == 0) {
- mdd_links_add(env, mdd_sobj,
- mdo2fid(mdd_tobj), lname, handle, 0);
- }
+ rc = rc != 0 ? rc : rc2;
- EXIT;
-out_unlock:
- mdd_write_unlock(env, mdd_sobj);
- mdd_pdo_write_unlock(env, mdd_tobj, dlh);
-out_trans:
- if (rc == 0)
- rc = mdd_changelog_ns_store(env, mdd, CL_HARDLINK, 0, mdd_sobj,
- mdd_tobj, lname, handle);
-stop:
- mdd_trans_stop(env, mdd, rc, handle);
-out_pending:
- return rc;
+ RETURN(rc);
}
-int mdd_declare_finish_unlink(const struct lu_env *env,
- struct mdd_object *obj,
- struct md_attr *ma,
- struct thandle *handle)
+int mdd_links_rename(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ const struct lu_fid *oldpfid,
+ const struct lu_name *oldlname,
+ const struct lu_fid *newpfid,
+ const struct lu_name *newlname,
+ struct thandle *handle,
+ struct linkea_data *ldata,
+ int first, int check)
{
- int rc;
+ int rc2 = 0;
+ int rc = 0;
+ ENTRY;
- rc = orph_declare_index_insert(env, obj, mdd_object_type(obj), handle);
- if (rc)
- return rc;
+ if (ldata == NULL) {
+ ldata = &mdd_env_info(env)->mti_link_data;
+ memset(ldata, 0, sizeof(*ldata));
+ rc = mdd_linkea_prepare(env, mdd_obj, oldpfid, oldlname,
+ newpfid, newlname, first, check,
+ ldata);
+ if (rc != 0)
+ GOTO(out, rc);
+ }
+
+ if (ldata->ld_reclen != 0)
+ rc = mdd_links_write(env, mdd_obj, ldata, handle);
+ EXIT;
+out:
+ if (rc == 0)
+ rc = rc2;
+ if (rc) {
+ int error = 1;
+ if (rc == -EOVERFLOW || rc == -ENOSPC)
+ error = 0;
+ if (oldpfid == NULL)
+ CDEBUG(error ? D_ERROR : D_OTHER,
+ "link_ea add '%.*s' failed %d "DFID"\n",
+ newlname->ln_namelen, newlname->ln_name,
+ rc, PFID(mdd_object_fid(mdd_obj)));
+ else if (newpfid == NULL)
+ CDEBUG(error ? D_ERROR : D_OTHER,
+ "link_ea del '%.*s' failed %d "DFID"\n",
+ oldlname->ln_namelen, oldlname->ln_name,
+ rc, PFID(mdd_object_fid(mdd_obj)));
+ else
+ CDEBUG(error ? D_ERROR : D_OTHER,
+ "link_ea rename '%.*s'->'%.*s' failed %d "
+ DFID"\n",
+ oldlname->ln_namelen, oldlname->ln_name,
+ newlname->ln_namelen, newlname->ln_name,
+ rc, PFID(mdd_object_fid(mdd_obj)));
+ }
+
+ if (ldata->ld_buf && ldata->ld_buf->lb_len > OBD_ALLOC_BIG)
+ /* if we vmalloced a large buffer drop it */
+ lu_buf_free(ldata->ld_buf);
- return mdo_declare_destroy(env, obj, handle);
+ return rc;
}
-/* caller should take a lock before calling */
-int mdd_finish_unlink(const struct lu_env *env,
- struct mdd_object *obj, struct md_attr *ma,
- struct thandle *th)
+static inline int mdd_links_add(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ const struct lu_fid *pfid,
+ const struct lu_name *lname,
+ struct thandle *handle,
+ struct linkea_data *data, int first)
{
- int rc = 0;
- int is_dir = S_ISDIR(ma->ma_attr.la_mode);
- ENTRY;
+ return mdd_links_rename(env, mdd_obj, NULL, NULL,
+ pfid, lname, handle, data, first, 0);
+}
- LASSERT(mdd_write_locked(env, obj) != 0);
+static inline int mdd_links_del(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ const struct lu_fid *pfid,
+ const struct lu_name *lname,
+ struct thandle *handle)
+{
+ return mdd_links_rename(env, mdd_obj, pfid, lname,
+ NULL, NULL, handle, NULL, 0, 0);
+}
- if (rc == 0 && (ma->ma_attr.la_nlink == 0 || is_dir)) {
- obj->mod_flags |= DEAD_OBJ;
- /* add new orphan and the object
- * will be deleted during mdd_close() */
- if (obj->mod_count) {
- rc = __mdd_orphan_add(env, obj, th);
- if (rc == 0)
- CDEBUG(D_HA, "Object "DFID" is inserted into "
- "orphan list, open count = %d\n",
- PFID(mdd_object_fid(obj)),
- obj->mod_count);
- else
- CERROR("Object "DFID" fail to be an orphan, "
- "open count = %d, maybe cause failed "
- "open replay\n",
- PFID(mdd_object_fid(obj)),
- obj->mod_count);
- } else {
- rc = mdo_destroy(env, obj, th);
- }
- }
+/** Read the link EA into a temp buffer.
+ * Uses the mdd_thread_info::mti_big_buf since it is generally large.
+ * A pointer to the buffer is stored in \a ldata::ld_buf.
+ *
+ * \retval 0 or error
+ */
+int mdd_links_read(const struct lu_env *env, struct mdd_object *mdd_obj,
+ struct linkea_data *ldata)
+{
+ int rc;
- RETURN(rc);
+ if (!mdd_object_exists(mdd_obj))
+ return -ENODATA;
+
+ /* First try a small buf */
+ LASSERT(env != NULL);
+ ldata->ld_buf = lu_buf_check_and_alloc(&mdd_env_info(env)->mti_link_buf,
+ PAGE_CACHE_SIZE);
+ if (ldata->ld_buf->lb_buf == NULL)
+ return -ENOMEM;
+
+ rc = mdo_xattr_get(env, mdd_obj, ldata->ld_buf, XATTR_NAME_LINK,
+ BYPASS_CAPA);
+ if (rc == -ERANGE) {
+ /* Buf was too small, figure out what we need. */
+ lu_buf_free(ldata->ld_buf);
+ rc = mdo_xattr_get(env, mdd_obj, ldata->ld_buf,
+ XATTR_NAME_LINK, BYPASS_CAPA);
+ if (rc < 0)
+ return rc;
+ ldata->ld_buf = lu_buf_check_and_alloc(ldata->ld_buf, rc);
+ if (ldata->ld_buf->lb_buf == NULL)
+ return -ENOMEM;
+ rc = mdo_xattr_get(env, mdd_obj, ldata->ld_buf,
+ XATTR_NAME_LINK, BYPASS_CAPA);
+ }
+ if (rc < 0) {
+ lu_buf_free(ldata->ld_buf);
+ ldata->ld_buf = NULL;
+ return rc;
+ }
+
+ return linkea_init(ldata);
}
-/*
- * pobj maybe NULL
- * has mdd_write_lock on cobj already, but not on pobj yet
+/** Read the link EA into a temp buffer.
+ * Uses the name_buf since it is generally large.
+ * \retval IS_ERR err
+ * \retval ptr to \a lu_buf (always \a mti_big_buf)
*/
-int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
- struct mdd_object *cobj, struct lu_attr *cattr)
+struct lu_buf *mdd_links_get(const struct lu_env *env,
+ struct mdd_object *mdd_obj)
{
- int rc;
- ENTRY;
+ struct linkea_data ldata = { 0 };
+ int rc;
- rc = mdd_may_delete(env, pobj, cobj, cattr, NULL, 1, 1);
+ rc = mdd_links_read(env, mdd_obj, &ldata);
+ return rc ? ERR_PTR(rc) : ldata.ld_buf;
+}
- RETURN(rc);
+int mdd_links_write(const struct lu_env *env, struct mdd_object *mdd_obj,
+ struct linkea_data *ldata, struct thandle *handle)
+{
+ const struct lu_buf *buf = mdd_buf_get_const(env, ldata->ld_buf->lb_buf,
+ ldata->ld_leh->leh_len);
+ return mdo_xattr_set(env, mdd_obj, buf, XATTR_NAME_LINK, 0, handle,
+ mdd_object_capa(env, mdd_obj));
}
-static int mdd_declare_unlink(const struct lu_env *env, struct mdd_device *mdd,
- struct mdd_object *p, struct mdd_object *c,
- const struct lu_name *name, struct md_attr *ma,
- struct thandle *handle)
+int mdd_declare_links_add(const struct lu_env *env, struct mdd_object *mdd_obj,
+ struct thandle *handle, struct linkea_data *ldata)
{
- int rc;
+ int rc;
+ int ea_len;
+ void *linkea;
- rc = mdo_declare_index_delete(env, p, name->ln_name, handle);
- if (rc)
- return rc;
+ if (ldata != NULL && ldata->ld_leh != NULL) {
+ ea_len = ldata->ld_leh->leh_len;
+ linkea = ldata->ld_buf->lb_buf;
+ } else {
+ ea_len = DEFAULT_LINKEA_SIZE;
+ linkea = NULL;
+ }
- rc = mdo_declare_ref_del(env, p, handle);
- if (rc)
- return rc;
+ /* XXX: max size? */
+ rc = mdo_declare_xattr_set(env, mdd_obj,
+ mdd_buf_get_const(env, linkea, ea_len),
+ XATTR_NAME_LINK, 0, handle);
+ return rc;
+}
- rc = mdo_declare_ref_del(env, c, handle);
- if (rc)
- return rc;
+static inline int mdd_declare_links_del(const struct lu_env *env,
+ struct mdd_object *c,
+ struct thandle *handle)
+{
+ int rc = 0;
- rc = mdo_declare_ref_del(env, c, handle);
- if (rc)
- return rc;
+ /* For directory, the linkEA will be removed together
+ * with the object. */
+ if (!S_ISDIR(mdd_object_type(c)))
+ rc = mdd_declare_links_add(env, c, handle, NULL);
+
+ return rc;
+}
+
+static int mdd_declare_link(const struct lu_env *env,
+ struct mdd_device *mdd,
+ struct mdd_object *p,
+ struct mdd_object *c,
+ const struct lu_name *name,
+ struct thandle *handle,
+ struct lu_attr *la,
+ struct linkea_data *data)
+{
+ int rc;
- rc = mdo_declare_attr_set(env, p, NULL, handle);
+ rc = mdo_declare_index_insert(env, p, mdo2fid(c), name->ln_name,handle);
if (rc)
return rc;
- rc = mdo_declare_attr_set(env, c, NULL, handle);
+ rc = mdo_declare_ref_add(env, c, handle);
if (rc)
return rc;
- rc = mdd_declare_finish_unlink(env, c, ma, handle);
+ la->la_valid = LA_CTIME | LA_MTIME;
+ rc = mdo_declare_attr_set(env, p, la, handle);
+ if (rc != 0)
+ return rc;
+
+ la->la_valid = LA_CTIME;
+ rc = mdo_declare_attr_set(env, c, la, handle);
if (rc)
return rc;
- rc = mdd_declare_links_add(env, c, handle);
+ rc = mdd_declare_links_add(env, c, handle, data);
if (rc)
return rc;
return rc;
}
-static int mdd_unlink(const struct lu_env *env, struct md_object *pobj,
- struct md_object *cobj, const struct lu_name *lname,
- struct md_attr *ma)
+static int mdd_link(const struct lu_env *env, struct md_object *tgt_obj,
+ struct md_object *src_obj, const struct lu_name *lname,
+ struct md_attr *ma)
{
const char *name = lname->ln_name;
- struct lu_attr *cattr = &mdd_env_info(env)->mti_cattr;
struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
- struct mdd_object *mdd_pobj = md2mdd_obj(pobj);
- struct mdd_object *mdd_cobj = md2mdd_obj(cobj);
- struct mdd_device *mdd = mdo2mdd(pobj);
- struct dynlock_handle *dlh;
- struct thandle *handle;
- int rc, is_dir;
- ENTRY;
+ struct mdd_object *mdd_tobj = md2mdd_obj(tgt_obj);
+ struct mdd_object *mdd_sobj = md2mdd_obj(src_obj);
+ struct lu_attr *cattr = MDD_ENV_VAR(env, cattr);
+ struct lu_attr *tattr = MDD_ENV_VAR(env, tattr);
+ struct mdd_device *mdd = mdo2mdd(src_obj);
+ struct thandle *handle;
+ struct linkea_data *ldata = &mdd_env_info(env)->mti_link_data;
+ int rc;
+ ENTRY;
- if (mdd_object_exists(mdd_cobj) <= 0)
- RETURN(-ENOENT);
+ rc = mdd_la_get(env, mdd_sobj, cattr, BYPASS_CAPA);
+ if (rc != 0)
+ RETURN(rc);
+
+ rc = mdd_la_get(env, mdd_tobj, tattr, BYPASS_CAPA);
+ if (rc != 0)
+ RETURN(rc);
handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
- RETURN(PTR_ERR(handle));
+ GOTO(out_pending, rc = PTR_ERR(handle));
+
+ memset(ldata, 0, sizeof(*ldata));
- rc = mdd_declare_unlink(env, mdd, mdd_pobj, mdd_cobj,
- lname, ma, handle);
+ LASSERT(ma->ma_attr.la_valid & LA_CTIME);
+ la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
+
+ rc = mdd_declare_link(env, mdd, mdd_tobj, mdd_sobj, lname, handle,
+ la, ldata);
if (rc)
GOTO(stop, rc);
if (rc)
GOTO(stop, rc);
- dlh = mdd_pdo_write_lock(env, mdd_pobj, name, MOR_TGT_PARENT);
- if (dlh == NULL)
- GOTO(stop, rc = -ENOMEM);
- mdd_write_lock(env, mdd_cobj, MOR_TGT_CHILD);
+ mdd_write_lock(env, mdd_sobj, MOR_TGT_CHILD);
+ rc = mdd_link_sanity_check(env, mdd_tobj, tattr, lname, mdd_sobj,
+ cattr);
+ if (rc)
+ GOTO(out_unlock, rc);
- /* fetch cattr */
- rc = mdd_la_get(env, mdd_cobj, cattr, mdd_object_capa(env, mdd_cobj));
- if (rc)
- GOTO(cleanup, rc);
+ rc = mdo_ref_add(env, mdd_sobj, handle);
+ if (rc)
+ GOTO(out_unlock, rc);
- is_dir = S_ISDIR(cattr->la_mode);
- rc = mdd_unlink_sanity_check(env, mdd_pobj, mdd_cobj, cattr);
- if (rc)
- GOTO(cleanup, rc);
+ rc = __mdd_index_insert_only(env, mdd_tobj, mdo2fid(mdd_sobj),
+ name, handle,
+ mdd_object_capa(env, mdd_tobj));
+ if (rc != 0) {
+ mdo_ref_del(env, mdd_sobj, handle);
+ GOTO(out_unlock, rc);
+ }
- rc = __mdd_index_delete(env, mdd_pobj, name, is_dir, handle,
- mdd_object_capa(env, mdd_pobj));
+ la->la_valid = LA_CTIME | LA_MTIME;
+ rc = mdd_update_time(env, mdd_tobj, tattr, la, handle);
if (rc)
- GOTO(cleanup, rc);
+ GOTO(out_unlock, rc);
- rc = mdo_ref_del(env, mdd_cobj, handle);
- if (rc != 0) {
- __mdd_index_insert_only(env, mdd_pobj, mdo2fid(mdd_cobj),
- name, handle,
- mdd_object_capa(env, mdd_pobj));
- GOTO(cleanup, rc);
+ la->la_valid = LA_CTIME;
+ rc = mdd_update_time(env, mdd_sobj, cattr, la, handle);
+ if (rc == 0) {
+ rc = mdd_linkea_prepare(env, mdd_sobj, NULL, NULL,
+ mdo2fid(mdd_tobj), lname, 0, 0,
+ ldata);
+ if (rc == 0)
+ mdd_links_add(env, mdd_sobj, mdo2fid(mdd_tobj),
+ lname, handle, ldata, 0);
+ /* The failure of links_add should not cause the link
+ * failure, reset rc here */
+ rc = 0;
}
+ EXIT;
+out_unlock:
+ mdd_write_unlock(env, mdd_sobj);
+ if (rc == 0)
+ rc = mdd_changelog_ns_store(env, mdd, CL_HARDLINK, 0, mdd_sobj,
+ mdd_tobj, lname, handle);
+stop:
+ mdd_trans_stop(env, mdd, rc, handle);
- if (is_dir)
- /* unlink dot */
- mdo_ref_del(env, mdd_cobj, handle);
+ if (ldata->ld_buf && ldata->ld_buf->lb_len > OBD_ALLOC_BIG)
+ /* if we vmalloced a large buffer drop it */
+ lu_buf_free(ldata->ld_buf);
+out_pending:
+ return rc;
+}
- /* fetch updated nlink */
- rc = mdd_la_get(env, mdd_cobj, cattr, mdd_object_capa(env, mdd_cobj));
- if (rc)
- GOTO(cleanup, rc);
+static int mdd_mark_dead_object(const struct lu_env *env,
+ struct mdd_object *obj, struct thandle *handle,
+ bool declare)
+{
+ struct lu_attr *attr = MDD_ENV_VAR(env, la_for_start);
+ int rc;
- LASSERT(ma->ma_attr.la_valid & LA_CTIME);
- la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
+ if (!declare)
+ obj->mod_flags |= DEAD_OBJ;
+
+ if (!S_ISDIR(mdd_object_type(obj)))
+ return 0;
+
+ attr->la_valid = LA_FLAGS;
+ attr->la_flags = LUSTRE_SLAVE_DEAD_FL;
+
+ if (declare)
+ rc = mdo_declare_attr_set(env, obj, attr, handle);
+ else
+ rc = mdo_attr_set(env, obj, attr, handle,
+ mdd_object_capa(env, obj));
+
+ return rc;
+}
+
+static int mdd_declare_finish_unlink(const struct lu_env *env,
+ struct mdd_object *obj,
+ struct thandle *handle)
+{
+ int rc;
+
+ rc = mdd_mark_dead_object(env, obj, handle, true);
+ if (rc != 0)
+ return rc;
+
+ rc = orph_declare_index_insert(env, obj, mdd_object_type(obj), handle);
+ if (rc != 0)
+ return rc;
+
+ rc = mdo_declare_destroy(env, obj, handle);
+ if (rc != 0)
+ return rc;
+
+ return mdd_declare_links_del(env, obj, handle);
+}
+
+/* caller should take a lock before calling */
+int mdd_finish_unlink(const struct lu_env *env,
+ struct mdd_object *obj, struct md_attr *ma,
+ const struct mdd_object *pobj,
+ const struct lu_name *lname,
+ struct thandle *th)
+{
+ int rc = 0;
+ int is_dir = S_ISDIR(ma->ma_attr.la_mode);
+ ENTRY;
+
+ LASSERT(mdd_write_locked(env, obj) != 0);
+
+ if (ma->ma_attr.la_nlink == 0 || is_dir) {
+ rc = mdd_mark_dead_object(env, obj, th, false);
+ if (rc != 0)
+ RETURN(rc);
+
+ /* add new orphan and the object
+ * will be deleted during mdd_close() */
+ if (obj->mod_count) {
+ rc = __mdd_orphan_add(env, obj, th);
+ if (rc == 0)
+ CDEBUG(D_HA, "Object "DFID" is inserted into "
+ "orphan list, open count = %d\n",
+ PFID(mdd_object_fid(obj)),
+ obj->mod_count);
+ else
+ CERROR("Object "DFID" fail to be an orphan, "
+ "open count = %d, maybe cause failed "
+ "open replay\n",
+ PFID(mdd_object_fid(obj)),
+ obj->mod_count);
+ } else {
+ rc = mdo_destroy(env, obj, th);
+ }
+ } else if (!is_dir) {
+ /* old files may not have link ea; ignore errors */
+ mdd_links_del(env, obj, mdo2fid(pobj), lname, th);
+ }
+
+ RETURN(rc);
+}
- la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal(env, mdd_pobj, la, handle, 0);
+/*
+ * pobj maybe NULL
+ * has mdd_write_lock on cobj already, but not on pobj yet
+ */
+int mdd_unlink_sanity_check(const struct lu_env *env, struct mdd_object *pobj,
+ const struct lu_attr *pattr,
+ struct mdd_object *cobj,
+ const struct lu_attr *cattr)
+{
+ int rc;
+ ENTRY;
+
+ rc = mdd_may_delete(env, pobj, pattr, cobj, cattr, NULL, 1, 1);
+
+ RETURN(rc);
+}
+
+static int mdd_declare_unlink(const struct lu_env *env, struct mdd_device *mdd,
+ struct mdd_object *p, struct mdd_object *c,
+ const struct lu_name *name, struct md_attr *ma,
+ struct thandle *handle, int no_name)
+{
+ struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
+ int rc;
+
+ if (likely(no_name == 0)) {
+ rc = mdo_declare_index_delete(env, p, name->ln_name, handle);
+ if (rc)
+ return rc;
+ }
+
+ rc = mdo_declare_ref_del(env, p, handle);
if (rc)
- GOTO(cleanup, rc);
+ return rc;
+
+ LASSERT(ma->ma_attr.la_valid & LA_CTIME);
+ la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
+ la->la_valid = LA_CTIME | LA_MTIME;
+ rc = mdo_declare_attr_set(env, p, la, handle);
+ if (rc)
+ return rc;
+
+ if (c != NULL) {
+ rc = mdo_declare_ref_del(env, c, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_ref_del(env, c, handle);
+ if (rc)
+ return rc;
+
+ la->la_valid = LA_CTIME;
+ rc = mdo_declare_attr_set(env, c, la, handle);
+ if (rc)
+ return rc;
+
+ rc = mdd_declare_finish_unlink(env, c, handle);
+ if (rc)
+ return rc;
+
+ /* FIXME: need changelog for remove entry */
+ rc = mdd_declare_changelog_store(env, mdd, name, handle);
+ }
+
+ return rc;
+}
+
+/*
+ * test if a file has an HSM archive
+ * if HSM attributes are not found in ma update them from
+ * HSM xattr
+ */
+static bool mdd_hsm_archive_exists(const struct lu_env *env,
+ struct mdd_object *obj,
+ struct md_attr *ma)
+{
+ ENTRY;
+
+ if (!(ma->ma_valid & MA_HSM)) {
+ /* no HSM MD provided, read xattr */
+ struct lu_buf *hsm_buf;
+ const size_t buflen = sizeof(struct hsm_attrs);
+ int rc;
+
+ hsm_buf = mdd_buf_get(env, NULL, 0);
+ lu_buf_alloc(hsm_buf, buflen);
+ rc = mdo_xattr_get(env, obj, hsm_buf, XATTR_NAME_HSM,
+ mdd_object_capa(env, obj));
+ rc = lustre_buf2hsm(hsm_buf->lb_buf, rc, &ma->ma_hsm);
+ lu_buf_free(hsm_buf);
+ if (rc < 0)
+ RETURN(false);
+
+ ma->ma_valid = MA_HSM;
+ }
+ if (ma->ma_hsm.mh_flags & HS_EXISTS)
+ RETURN(true);
+ RETURN(false);
+}
+
+/**
+ * Delete name entry and the object.
+ * Note: no_name == 1 means it only destory the object, i.e. name_entry
+ * does not exist for this object, and it could only happen during resending
+ * of remote unlink. see the comments in mdt_reint_unlink. Unfortunately, lname
+ * is also needed in this case(needed by changelog), so we have to add another
+ * parameter(no_name)here. XXX: this is only needed in DNE phase I, on Phase II,
+ * the ENOENT failure should be able to be fixed by redo mechanism.
+ */
+static int mdd_unlink(const struct lu_env *env, struct md_object *pobj,
+ struct md_object *cobj, const struct lu_name *lname,
+ struct md_attr *ma, int no_name)
+{
+ const char *name = lname->ln_name;
+ struct lu_attr *pattr = MDD_ENV_VAR(env, pattr);
+ struct lu_attr *cattr = MDD_ENV_VAR(env, cattr);
+ struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
+ struct mdd_object *mdd_pobj = md2mdd_obj(pobj);
+ struct mdd_object *mdd_cobj = NULL;
+ struct mdd_device *mdd = mdo2mdd(pobj);
+ struct thandle *handle;
+ int rc, is_dir = 0;
+ ENTRY;
+
+ /* cobj == NULL means only delete name entry */
+ if (likely(cobj != NULL)) {
+ mdd_cobj = md2mdd_obj(cobj);
+ if (mdd_object_exists(mdd_cobj) == 0)
+ RETURN(-ENOENT);
+ }
+
+ rc = mdd_la_get(env, mdd_pobj, pattr, BYPASS_CAPA);
+ if (rc)
+ RETURN(rc);
+
+ if (likely(mdd_cobj != NULL)) {
+ /* fetch cattr */
+ rc = mdd_la_get(env, mdd_cobj, cattr, BYPASS_CAPA);
+ if (rc)
+ RETURN(rc);
+
+ is_dir = S_ISDIR(cattr->la_mode);
+ }
+
+ rc = mdd_unlink_sanity_check(env, mdd_pobj, pattr, mdd_cobj, cattr);
+ if (rc)
+ RETURN(rc);
+
+ handle = mdd_trans_create(env, mdd);
+ if (IS_ERR(handle))
+ RETURN(PTR_ERR(handle));
+
+ rc = mdd_declare_unlink(env, mdd, mdd_pobj, mdd_cobj,
+ lname, ma, handle, no_name);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ if (likely(mdd_cobj != NULL))
+ mdd_write_lock(env, mdd_cobj, MOR_TGT_CHILD);
+
+ if (likely(no_name == 0)) {
+ rc = __mdd_index_delete(env, mdd_pobj, name, is_dir, handle,
+ mdd_object_capa(env, mdd_pobj));
+ if (rc)
+ GOTO(cleanup, rc);
+ }
+
+ if (likely(mdd_cobj != NULL)) {
+ rc = mdo_ref_del(env, mdd_cobj, handle);
+ if (rc != 0) {
+ __mdd_index_insert_only(env, mdd_pobj,
+ mdo2fid(mdd_cobj),
+ name, handle,
+ mdd_object_capa(env, mdd_pobj));
+ GOTO(cleanup, rc);
+ }
+
+ if (is_dir)
+ /* unlink dot */
+ mdo_ref_del(env, mdd_cobj, handle);
+
+ /* fetch updated nlink */
+ rc = mdd_la_get(env, mdd_cobj, cattr, BYPASS_CAPA);
+ if (rc)
+ GOTO(cleanup, rc);
+ }
+
+ LASSERT(ma->ma_attr.la_valid & LA_CTIME);
+ la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
+
+ la->la_valid = LA_CTIME | LA_MTIME;
+ rc = mdd_update_time(env, mdd_pobj, pattr, la, handle);
+ if (rc)
+ GOTO(cleanup, rc);
+
+ /* Enough for only unlink the entry */
+ if (unlikely(mdd_cobj == NULL))
+ GOTO(stop, rc);
if (cattr->la_nlink > 0 || mdd_cobj->mod_count > 0) {
- /* update ctime of an unlinked file only if it is still
- * opened or a link still exists */
- la->la_valid = LA_CTIME;
- rc = mdd_attr_check_set_internal(env, mdd_cobj, la, handle, 0);
- if (rc)
- GOTO(cleanup, rc);
- }
+ /* update ctime of an unlinked file only if it is still
+ * opened or a link still exists */
+ la->la_valid = LA_CTIME;
+ rc = mdd_update_time(env, mdd_cobj, cattr, la, handle);
+ if (rc)
+ GOTO(cleanup, rc);
+ }
/* XXX: this transfer to ma will be removed with LOD/OSP */
ma->ma_attr = *cattr;
ma->ma_valid |= MA_INODE;
- rc = mdd_finish_unlink(env, mdd_cobj, ma, handle);
+ rc = mdd_finish_unlink(env, mdd_cobj, ma, mdd_pobj, lname, handle);
/* fetch updated nlink */
if (rc == 0)
- rc = mdd_la_get(env, mdd_cobj, cattr,
- mdd_object_capa(env, mdd_cobj));
-
- if (!is_dir)
- /* old files may not have link ea; ignore errors */
- mdd_links_del(env, mdd_cobj, mdo2fid(mdd_pobj), lname, handle);
+ rc = mdd_la_get(env, mdd_cobj, cattr, BYPASS_CAPA);
/* if object is removed then we can't get its attrs, use last get */
if (cattr->la_nlink == 0) {
ma->ma_attr = *cattr;
ma->ma_valid |= MA_INODE;
}
- EXIT;
+ EXIT;
cleanup:
- mdd_write_unlock(env, mdd_cobj);
- mdd_pdo_write_unlock(env, mdd_pobj, dlh);
- if (rc == 0) {
- int cl_flags;
-
- cl_flags = (cattr->la_nlink == 0) ? CLF_UNLINK_LAST : 0;
- if ((ma->ma_valid & MA_HSM) &&
- (ma->ma_hsm.mh_flags & HS_EXISTS))
- cl_flags |= CLF_UNLINK_HSM_EXISTS;
+ mdd_write_unlock(env, mdd_cobj);
+ if (rc == 0) {
+ int cl_flags = 0;
+
+ if (cattr->la_nlink == 0) {
+ cl_flags |= CLF_UNLINK_LAST;
+ /* search for an existing archive */
+ if (mdd_hsm_archive_exists(env, mdd_cobj, ma))
+ cl_flags |= CLF_UNLINK_HSM_EXISTS;
+ }
rc = mdd_changelog_ns_store(env, mdd,
is_dir ? CL_RMDIR : CL_UNLINK, cl_flags,
mdd_cobj, mdd_pobj, lname, handle);
- }
+ }
stop:
- mdd_trans_stop(env, mdd, rc, handle);
+ mdd_trans_stop(env, mdd, rc, handle);
- return rc;
+ return rc;
}
/*
RETURN(-ENOENT);
RETURN(0);
-
}
static int mdd_create_data(const struct lu_env *env, struct md_object *pobj,
struct md_object *cobj, const struct md_op_spec *spec,
struct md_attr *ma)
{
- struct mdd_device *mdd = mdo2mdd(cobj);
- struct mdd_object *mdd_pobj = md2mdd_obj(pobj);
- struct mdd_object *son = md2mdd_obj(cobj);
- struct thandle *handle;
+ struct mdd_device *mdd = mdo2mdd(cobj);
+ struct mdd_object *mdd_pobj = md2mdd_obj(pobj);
+ struct mdd_object *son = md2mdd_obj(cobj);
+ struct thandle *handle;
const struct lu_buf *buf;
- struct lu_attr *attr = &mdd_env_info(env)->mti_cattr;
- int rc;
- ENTRY;
-
- /* do not let users to create stripes via .lustre/
- * mdd_obf_setup() sets IMMUTE_OBJ on this directory */
- if (pobj && mdd_pobj->mod_flags & IMMUTE_OBJ)
- RETURN(-ENOENT);
+ struct lu_attr *attr = MDD_ENV_VAR(env, cattr);
+ struct dt_allocation_hint *hint = &mdd_env_info(env)->mti_hint;
+ int rc;
+ ENTRY;
- rc = mdd_cd_sanity_check(env, son);
- if (rc)
- RETURN(rc);
+ rc = mdd_cd_sanity_check(env, son);
+ if (rc)
+ RETURN(rc);
- if (!md_should_create(spec->sp_cr_flags))
- RETURN(0);
+ if (!md_should_create(spec->sp_cr_flags))
+ RETURN(0);
/*
* there are following use cases for this function:
* striping can be specified or not
* 2) CMD?
*/
- rc = mdd_la_get(env, son, attr, mdd_object_capa(env, son));
+ rc = mdd_la_get(env, son, attr, BYPASS_CAPA);
if (rc)
RETURN(rc);
/* calling ->ah_make_hint() is used to transfer information from parent */
- mdd_object_make_hint(env, mdd_pobj, son, attr);
+ mdd_object_make_hint(env, mdd_pobj, son, attr, spec, hint);
handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
* XXX: Setting the lov ea is not locked but setting the attr is locked?
* Should this be fixed?
*/
- CDEBUG(D_OTHER, "ea %p/%u, cr_flags %Lo, no_create %u\n",
+ CDEBUG(D_OTHER, "ea %p/%u, cr_flags "LPO64", no_create %u\n",
spec->u.sp_ea.eadata, spec->u.sp_ea.eadatalen,
spec->sp_cr_flags, spec->no_create);
- if (spec->no_create || spec->sp_cr_flags & MDS_OPEN_HAS_EA) {
- /* replay case or lfs setstripe */
+ if (spec->no_create || (spec->sp_cr_flags & MDS_OPEN_HAS_EA)) {
buf = mdd_buf_get_const(env, spec->u.sp_ea.eadata,
spec->u.sp_ea.eadatalen);
} else {
if (rc)
GOTO(stop, rc);
+ rc = mdd_declare_changelog_store(env, mdd, NULL, handle);
+ if (rc)
+ GOTO(stop, rc);
+
rc = mdd_trans_start(env, mdd, handle);
if (rc)
GOTO(stop, rc);
rc = dt_xattr_set(env, mdd_object_child(son), buf, XATTR_NAME_LOV,
0, handle, mdd_object_capa(env, son));
+
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = mdd_changelog_data_store(env, mdd, CL_LAYOUT, 0, son, handle);
+
stop:
mdd_trans_stop(env, mdd, rc, handle);
out_free:
RETURN(rc);
}
-/* Get fid from name and parent */
-static int
-__mdd_lookup(const struct lu_env *env, struct md_object *pobj,
- const struct lu_name *lname, struct lu_fid* fid, int mask)
-{
- const char *name = lname->ln_name;
- const struct dt_key *key = (const struct dt_key *)name;
- struct mdd_object *mdd_obj = md2mdd_obj(pobj);
- struct mdd_device *m = mdo2mdd(pobj);
- struct dt_object *dir = mdd_object_child(mdd_obj);
- int rc;
- ENTRY;
-
- if (unlikely(mdd_is_dead_obj(mdd_obj)))
- RETURN(-ESTALE);
-
- rc = mdd_object_exists(mdd_obj);
- if (unlikely(rc == 0))
- RETURN(-ESTALE);
- else if (unlikely(rc < 0)) {
- CERROR("Object "DFID" locates on remote server\n",
- PFID(mdo2fid(mdd_obj)));
- RETURN(-EINVAL);
- }
-
- /* The common filename length check. */
- if (unlikely(lname->ln_namelen > m->mdd_dt_conf.ddp_max_name_len))
- RETURN(-ENAMETOOLONG);
-
- rc = mdd_permission_internal_locked(env, mdd_obj, NULL, mask,
- MOR_TGT_PARENT);
- if (rc)
- RETURN(rc);
-
- if (likely(S_ISDIR(mdd_object_type(mdd_obj)) &&
- dt_try_as_dir(env, dir))) {
-
- rc = dir->do_index_ops->dio_lookup(env, dir,
- (struct dt_rec *)fid, key,
- mdd_object_capa(env, mdd_obj));
- if (rc > 0)
- rc = 0;
- else if (rc == 0)
- rc = -ENOENT;
- } else
- rc = -ENOTDIR;
-
- RETURN(rc);
-}
-
-int mdd_declare_object_initialize(const struct lu_env *env,
- struct mdd_object *child,
- struct lu_attr *attr,
- struct thandle *handle)
+static int mdd_declare_object_initialize(const struct lu_env *env,
+ struct mdd_object *parent,
+ struct mdd_object *child,
+ struct lu_attr *attr,
+ struct thandle *handle)
{
int rc;
+ ENTRY;
/*
* inode mode has been set in creation time, and it's based on umask,
dot, handle);
if (rc == 0)
rc = mdo_declare_ref_add(env, child, handle);
- }
- if (rc == 0)
- mdd_declare_links_add(env, child, handle);
+ rc = mdo_declare_index_insert(env, child, mdo2fid(parent),
+ dotdot, handle);
+ }
- return rc;
+ RETURN(rc);
}
-int mdd_object_initialize(const struct lu_env *env, const struct lu_fid *pfid,
- const struct lu_name *lname, struct mdd_object *child,
- struct lu_attr *attr, struct thandle *handle,
- const struct md_op_spec *spec)
+static int mdd_object_initialize(const struct lu_env *env,
+ const struct lu_fid *pfid,
+ struct mdd_object *child,
+ struct lu_attr *attr, struct thandle *handle,
+ const struct md_op_spec *spec)
{
int rc;
ENTRY;
* (2) maybe, the child attributes should be set in OSD when creation.
*/
- /*
- * inode mode has been set in creation time, and it's based on umask,
- * la_mode and acl, don't set here again! (which will go wrong
- * because below function doesn't consider umask).
- * I'd suggest set all object attributes in creation time, see above.
- */
- LASSERT(attr->la_valid & (LA_MODE | LA_TYPE));
- attr->la_valid &= ~(LA_MODE | LA_TYPE);
rc = mdd_attr_set_internal(env, child, attr, handle, 0);
/* arguments are supposed to stay the same */
- attr->la_valid |= LA_MODE | LA_TYPE;
- if (rc != 0)
- RETURN(rc);
-
if (S_ISDIR(attr->la_mode)) {
/* Add "." and ".." for newly created dir */
mdo_ref_add(env, child, handle);
if (rc != 0)
mdo_ref_del(env, child, handle);
}
- if (rc == 0)
- mdd_links_add(env, child, pfid, lname, handle, 1);
- RETURN(rc);
+ RETURN(rc);
}
/* has not lock on pobj yet */
static int mdd_create_sanity_check(const struct lu_env *env,
struct md_object *pobj,
- struct lu_attr *pattr,
+ const struct lu_attr *pattr,
const struct lu_name *lname,
struct lu_attr *cattr,
struct md_op_spec *spec)
{
- struct mdd_thread_info *info = mdd_env_info(env);
- struct lu_fid *fid = &info->mti_fid;
- struct mdd_object *obj = md2mdd_obj(pobj);
- struct mdd_device *m = mdo2mdd(pobj);
- int lookup = spec->sp_cr_lookup;
- int rc;
- ENTRY;
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct lu_fid *fid = &info->mti_fid;
+ struct mdd_object *obj = md2mdd_obj(pobj);
+ struct mdd_device *m = mdo2mdd(pobj);
+ int rc;
+ ENTRY;
/* EEXIST check */
if (mdd_is_dead_obj(obj))
* exists or not because MDT performs lookup for it.
* name length check is done in lookup.
*/
- if (lookup) {
+ if (spec->sp_cr_lookup) {
/*
* Check if the name already exist, though it will be checked in
* _index_insert also, for avoiding rolling back if exists
* _index_insert.
*/
- rc = __mdd_lookup_locked(env, pobj, lname, fid,
- MAY_WRITE | MAY_EXEC);
- if (rc != -ENOENT)
- RETURN(rc ? : -EEXIST);
- } else {
- /*
- * Check WRITE permission for the parent.
- * EXEC permission have been checked
- * when lookup before create already.
- */
- rc = mdd_permission_internal_locked(env, obj, pattr, MAY_WRITE,
- MOR_TGT_PARENT);
- if (rc)
- RETURN(rc);
- }
+ rc = __mdd_lookup(env, pobj, pattr, lname, fid,
+ MAY_WRITE | MAY_EXEC);
+ if (rc != -ENOENT)
+ RETURN(rc ? : -EEXIST);
+ } else {
+ rc = mdd_may_create(env, obj, pattr, NULL, true, false);
+ if (rc != 0)
+ RETURN(rc);
+ }
/* sgid check */
if (pattr->la_mode & S_ISGID) {
}
}
+ rc = mdd_name_check(m, lname);
+ if (rc < 0)
+ RETURN(rc);
+
switch (cattr->la_mode & S_IFMT) {
case S_IFLNK: {
unsigned int symlen = strlen(spec->u.sp_symname) + 1;
RETURN(rc);
}
-static int mdd_declare_create(const struct lu_env *env, struct mdd_device *mdd,
- struct mdd_object *p, struct mdd_object *c,
- const struct lu_name *name,
- struct lu_attr *attr,
- int got_def_acl,
- struct thandle *handle,
- const struct md_op_spec *spec)
+static int mdd_declare_object_create(const struct lu_env *env,
+ struct mdd_device *mdd,
+ struct mdd_object *p, struct mdd_object *c,
+ struct lu_attr *attr,
+ struct thandle *handle,
+ const struct md_op_spec *spec,
+ struct lu_buf *def_acl_buf,
+ struct lu_buf *acl_buf,
+ struct dt_allocation_hint *hint)
{
int rc;
- rc = mdd_declare_object_create_internal(env, p, c, attr, handle, spec);
+ rc = mdd_declare_object_create_internal(env, p, c, attr, handle, spec,
+ hint);
if (rc)
GOTO(out, rc);
#ifdef CONFIG_FS_POSIX_ACL
- if (got_def_acl > 0) {
- struct lu_buf *acl_buf;
-
- acl_buf = mdd_buf_get(env, NULL, got_def_acl);
+ if (def_acl_buf->lb_len > 0 && S_ISDIR(attr->la_mode)) {
/* if dir, then can inherit default ACl */
- if (S_ISDIR(attr->la_mode)) {
- rc = mdo_declare_xattr_set(env, c, acl_buf,
- XATTR_NAME_ACL_DEFAULT,
- 0, handle);
- if (rc)
- GOTO(out, rc);
- }
+ rc = mdo_declare_xattr_set(env, c, def_acl_buf,
+ XATTR_NAME_ACL_DEFAULT,
+ 0, handle);
+ if (rc)
+ GOTO(out, rc);
+ }
+ if (acl_buf->lb_len > 0) {
rc = mdo_declare_attr_set(env, c, attr, handle);
if (rc)
GOTO(out, rc);
GOTO(out, rc);
}
#endif
-
- if (S_ISDIR(attr->la_mode)) {
- rc = mdo_declare_ref_add(env, p, handle);
- if (rc)
- GOTO(out, rc);
- }
-
- rc = mdd_declare_object_initialize(env, c, attr, handle);
- if (rc)
- GOTO(out, rc);
-
- if (spec->sp_cr_flags & MDS_OPEN_VOLATILE)
- rc = orph_declare_index_insert(env, c, attr->la_mode, handle);
- else
- rc = mdo_declare_index_insert(env, p, mdo2fid(c),
- name->ln_name, handle);
+ rc = mdd_declare_object_initialize(env, p, c, attr, handle);
if (rc)
GOTO(out, rc);
/* replay case, create LOV EA from client data */
- if (spec->no_create || (spec->sp_cr_flags & MDS_OPEN_HAS_EA)) {
+ if (spec->no_create ||
+ (spec->sp_cr_flags & MDS_OPEN_HAS_EA && S_ISREG(attr->la_mode))) {
const struct lu_buf *buf;
buf = mdd_buf_get_const(env, spec->u.sp_ea.eadata,
spec->u.sp_ea.eadatalen);
- rc = mdo_declare_xattr_set(env, c, buf, XATTR_NAME_LOV,
- 0, handle);
+ rc = mdo_declare_xattr_set(env, c, buf, XATTR_NAME_LOV, 0,
+ handle);
if (rc)
GOTO(out, rc);
}
if (S_ISLNK(attr->la_mode)) {
+ const char *target_name = spec->u.sp_symname;
+ int sym_len = strlen(target_name);
+ const struct lu_buf *buf;
+
+ buf = mdd_buf_get_const(env, target_name, sym_len);
rc = dt_declare_record_write(env, mdd_object_child(c),
- strlen(spec->u.sp_symname), 0,
- handle);
+ buf, 0, handle);
if (rc)
GOTO(out, rc);
}
+out:
+ return rc;
+}
+
+static int mdd_declare_create(const struct lu_env *env, struct mdd_device *mdd,
+ struct mdd_object *p, struct mdd_object *c,
+ const struct lu_name *name,
+ struct lu_attr *attr,
+ struct thandle *handle,
+ const struct md_op_spec *spec,
+ struct linkea_data *ldata,
+ struct lu_buf *def_acl_buf,
+ struct lu_buf *acl_buf,
+ struct dt_allocation_hint *hint)
+{
+ int rc;
+
+ rc = mdd_declare_object_create(env, mdd, p, c, attr, handle, spec,
+ def_acl_buf, acl_buf, hint);
+ if (rc)
+ GOTO(out, rc);
+
+ if (S_ISDIR(attr->la_mode)) {
+ rc = mdo_declare_ref_add(env, p, handle);
+ if (rc)
+ GOTO(out, rc);
+ }
+
+ if (spec->sp_cr_flags & MDS_OPEN_VOLATILE) {
+ rc = orph_declare_index_insert(env, c, attr->la_mode, handle);
+ if (rc)
+ GOTO(out, rc);
+ } else {
+ struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
+
+ rc = mdo_declare_index_insert(env, p, mdo2fid(c), name->ln_name,
+ handle);
+ if (rc)
+ return rc;
+ rc = mdd_declare_links_add(env, c, handle, ldata);
+ if (rc)
+ return rc;
- if (!(spec->sp_cr_flags & MDS_OPEN_VOLATILE)) {
- rc = mdo_declare_attr_set(env, p, attr, handle);
+ *la = *attr;
+ la->la_valid = LA_CTIME | LA_MTIME;
+ rc = mdo_declare_attr_set(env, p, la, handle);
if (rc)
return rc;
}
if (rc)
return rc;
+ /* XXX: For remote create, it should indicate the remote RPC
+ * will be sent after local transaction is finished, which
+ * is not very nice, but it will be removed once we fully support
+ * async update */
+ if (mdd_object_remote(p) && handle->th_update != NULL)
+ handle->th_update->tu_sent_after_local_trans = 1;
out:
- return rc;
+ return rc;
+}
+
+static int mdd_acl_init(const struct lu_env *env, struct mdd_object *pobj,
+ struct lu_attr *la, struct lu_buf *def_acl_buf,
+ struct lu_buf *acl_buf)
+{
+ int rc;
+ ENTRY;
+
+ if (S_ISLNK(la->la_mode)) {
+ acl_buf->lb_len = 0;
+ def_acl_buf->lb_len = 0;
+ RETURN(0);
+ }
+
+ mdd_read_lock(env, pobj, MOR_TGT_PARENT);
+ rc = mdo_xattr_get(env, pobj, def_acl_buf,
+ XATTR_NAME_ACL_DEFAULT, BYPASS_CAPA);
+ mdd_read_unlock(env, pobj);
+ if (rc > 0) {
+ /* If there are default ACL, fix mode/ACL by default ACL */
+ def_acl_buf->lb_len = rc;
+ LASSERT(def_acl_buf->lb_len <= acl_buf->lb_len);
+ memcpy(acl_buf->lb_buf, def_acl_buf->lb_buf, rc);
+ acl_buf->lb_len = rc;
+ rc = __mdd_fix_mode_acl(env, acl_buf, &la->la_mode);
+ if (rc < 0)
+ RETURN(rc);
+ } else if (rc == -ENODATA || rc == -EOPNOTSUPP) {
+ /* If there are no default ACL, fix mode by mask */
+ struct lu_ucred *uc = lu_ucred(env);
+
+ /* The create triggered by MDT internal events, such as
+ * LFSCK reset, will not contain valid "uc". */
+ if (unlikely(uc != NULL))
+ la->la_mode &= ~uc->uc_umask;
+ rc = 0;
+ acl_buf->lb_len = 0;
+ def_acl_buf->lb_len = 0;
+ }
+
+ RETURN(rc);
}
+/**
+ * Create a metadata object and initialize it, set acl, xattr.
+ **/
+static int mdd_object_create(const struct lu_env *env, struct mdd_object *pobj,
+ struct mdd_object *son, struct lu_attr *attr,
+ struct md_op_spec *spec, struct lu_buf *acl_buf,
+ struct lu_buf *def_acl_buf,
+ struct dt_allocation_hint *hint,
+ struct thandle *handle)
+{
+ int rc;
+
+ mdd_write_lock(env, son, MOR_TGT_CHILD);
+ rc = mdd_object_create_internal(env, NULL, son, attr, handle, spec,
+ hint);
+ if (rc)
+ GOTO(unlock, rc);
+
+ /* Note: In DNE phase I, for striped dir, though sub-stripes will be
+ * created in declare phase, they also needs to be added to master
+ * object as sub-directory entry. So it has to initialize the master
+ * object, then set dir striped EA.(in mdo_xattr_set) */
+ rc = mdd_object_initialize(env, mdo2fid(pobj), son, attr, handle,
+ spec);
+ if (rc != 0)
+ GOTO(err_destroy, rc);
+
+ /*
+ * in case of replay we just set LOVEA provided by the client
+ * XXX: I think it would be interesting to try "old" way where
+ * MDT calls this xattr_set(LOV) in a different transaction.
+ * probably this way we code can be made better.
+ */
+
+ /* During creation, there are only a few cases we need do xattr_set to
+ * create stripes.
+ * 1. regular file: see comments above.
+ * 2. create striped directory with provided stripeEA.
+ * 3. create striped directory because inherit default layout from the
+ * parent. */
+ if (spec->no_create ||
+ (S_ISREG(attr->la_mode) && spec->sp_cr_flags & MDS_OPEN_HAS_EA) ||
+ S_ISDIR(attr->la_mode)) {
+ const struct lu_buf *buf;
+
+ buf = mdd_buf_get_const(env, spec->u.sp_ea.eadata,
+ spec->u.sp_ea.eadatalen);
+ rc = mdo_xattr_set(env, son, buf,
+ S_ISDIR(attr->la_mode) ? XATTR_NAME_LMV :
+ XATTR_NAME_LOV, 0,
+ handle, BYPASS_CAPA);
+ if (rc != 0)
+ GOTO(err_destroy, rc);
+ }
+
+#ifdef CONFIG_FS_POSIX_ACL
+ if (def_acl_buf != NULL && def_acl_buf->lb_len > 0 &&
+ S_ISDIR(attr->la_mode)) {
+ /* set default acl */
+ rc = mdo_xattr_set(env, son, def_acl_buf,
+ XATTR_NAME_ACL_DEFAULT, 0,
+ handle, BYPASS_CAPA);
+ if (rc)
+ GOTO(err_destroy, rc);
+ }
+ /* set its own acl */
+ if (acl_buf != NULL && acl_buf->lb_len > 0) {
+ rc = mdo_xattr_set(env, son, acl_buf,
+ XATTR_NAME_ACL_ACCESS,
+ 0, handle, BYPASS_CAPA);
+ if (rc)
+ GOTO(err_destroy, rc);
+ }
+#endif
+
+ if (S_ISLNK(attr->la_mode)) {
+ struct lu_ucred *uc = lu_ucred_assert(env);
+ struct dt_object *dt = mdd_object_child(son);
+ const char *target_name = spec->u.sp_symname;
+ int sym_len = strlen(target_name);
+ const struct lu_buf *buf;
+ loff_t pos = 0;
+
+ buf = mdd_buf_get_const(env, target_name, sym_len);
+ rc = dt->do_body_ops->dbo_write(env, dt, buf, &pos, handle,
+ mdd_object_capa(env, son),
+ uc->uc_cap &
+ CFS_CAP_SYS_RESOURCE_MASK);
+
+ if (rc == sym_len)
+ rc = 0;
+ else
+ GOTO(err_initlized, rc = -EFAULT);
+ }
+
+err_initlized:
+ if (unlikely(rc != 0)) {
+ int rc2;
+ if (S_ISDIR(attr->la_mode)) {
+ /* Drop the reference, no need to delete "."/"..",
+ * because the object to be destroied directly. */
+ rc2 = mdo_ref_del(env, son, handle);
+ if (rc2 != 0)
+ GOTO(unlock, rc);
+ }
+ rc2 = mdo_ref_del(env, son, handle);
+ if (rc2 != 0)
+ GOTO(unlock, rc);
+err_destroy:
+ mdo_destroy(env, son, handle);
+ }
+unlock:
+ mdd_write_unlock(env, son);
+ RETURN(rc);
+}
/*
* Create object and insert it into namespace.
struct lu_attr *attr = &ma->ma_attr;
struct thandle *handle;
struct lu_attr *pattr = &info->mti_pattr;
- struct dynlock_handle *dlh;
+ struct lu_buf acl_buf;
+ struct lu_buf def_acl_buf;
+ struct linkea_data *ldata = &info->mti_link_data;
const char *name = lname->ln_name;
- int rc, created = 0, initialized = 0, inserted = 0;
- int got_def_acl = 0;
+ struct dt_allocation_hint *hint = &mdd_env_info(env)->mti_hint;
+ int rc;
+ int rc2;
ENTRY;
/*
if (rc != 0)
RETURN(rc);
- /* Sanity checks before big job. */
+ /* Sanity checks before big job. */
rc = mdd_create_sanity_check(env, pobj, pattr, lname, attr, spec);
- if (rc)
- RETURN(rc);
+ if (rc)
+ RETURN(rc);
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_DQACQ_NET))
GOTO(out_free, rc = -EINPROGRESS);
- if (!S_ISLNK(attr->la_mode)) {
- struct lu_buf *acl_buf;
+ handle = mdd_trans_create(env, mdd);
+ if (IS_ERR(handle))
+ GOTO(out_free, rc = PTR_ERR(handle));
- acl_buf = mdd_buf_get(env, info->mti_xattr_buf,
- sizeof(info->mti_xattr_buf));
- mdd_read_lock(env, mdd_pobj, MOR_TGT_PARENT);
- rc = mdo_xattr_get(env, mdd_pobj, acl_buf,
- XATTR_NAME_ACL_DEFAULT, BYPASS_CAPA);
- mdd_read_unlock(env, mdd_pobj);
- if (rc > 0)
- got_def_acl = rc;
- else if (rc < 0 && rc != -EOPNOTSUPP && rc != -ENODATA)
- GOTO(out_free, rc);
- }
+ acl_buf.lb_buf = info->mti_xattr_buf;
+ acl_buf.lb_len = sizeof(info->mti_xattr_buf);
+ def_acl_buf.lb_buf = info->mti_key;
+ def_acl_buf.lb_len = sizeof(info->mti_key);
+ rc = mdd_acl_init(env, mdd_pobj, attr, &def_acl_buf, &acl_buf);
+ if (rc < 0)
+ GOTO(out_stop, rc);
- mdd_object_make_hint(env, mdd_pobj, son, attr);
+ mdd_object_make_hint(env, mdd_pobj, son, attr, spec, hint);
- handle = mdd_trans_create(env, mdd);
- if (IS_ERR(handle))
- GOTO(out_free, rc = PTR_ERR(handle));
+ memset(ldata, 0, sizeof(*ldata));
+ rc = mdd_linkea_prepare(env, son, NULL, NULL,
+ mdd_object_fid(mdd_pobj),
+ lname, 1, 0, ldata);
rc = mdd_declare_create(env, mdd, mdd_pobj, son, lname, attr,
- got_def_acl, handle, spec);
+ handle, spec, ldata, &def_acl_buf, &acl_buf,
+ hint);
if (rc)
GOTO(out_stop, rc);
if (rc)
GOTO(out_stop, rc);
- dlh = mdd_pdo_write_lock(env, mdd_pobj, name, MOR_TGT_PARENT);
- if (dlh == NULL)
- GOTO(out_trans, rc = -ENOMEM);
-
- mdd_write_lock(env, son, MOR_TGT_CHILD);
- rc = mdd_object_create_internal(env, NULL, son, attr, handle, spec);
- if (rc) {
- mdd_write_unlock(env, son);
- GOTO(cleanup, rc);
- }
-
- created = 1;
-
-#ifdef CONFIG_FS_POSIX_ACL
- if (got_def_acl) {
- struct lu_buf *acl_buf;
-
- acl_buf = mdd_buf_get(env, info->mti_xattr_buf, got_def_acl);
- rc = __mdd_acl_init(env, son, acl_buf, &attr->la_mode, handle);
- if (rc) {
- mdd_write_unlock(env, son);
- GOTO(cleanup, rc);
- }
- }
-#endif
-
- rc = mdd_object_initialize(env, mdo2fid(mdd_pobj), lname,
- son, attr, handle, spec);
-
- /*
- * in case of replay we just set LOVEA provided by the client
- * XXX: I think it would be interesting to try "old" way where
- * MDT calls this xattr_set(LOV) in a different transaction.
- * probably this way we code can be made better.
- */
- if (rc == 0 && (spec->no_create ||
- (spec->sp_cr_flags & MDS_OPEN_HAS_EA))) {
- const struct lu_buf *buf;
-
- buf = mdd_buf_get_const(env, spec->u.sp_ea.eadata,
- spec->u.sp_ea.eadatalen);
- rc = mdo_xattr_set(env, son, buf, XATTR_NAME_LOV, 0, handle,
- BYPASS_CAPA);
- }
-
- if (rc == 0 && spec->sp_cr_flags & MDS_OPEN_VOLATILE)
- rc = __mdd_orphan_add(env, son, handle);
-
- mdd_write_unlock(env, son);
-
+ rc = mdd_object_create(env, mdd_pobj, son, attr, spec, &acl_buf,
+ &def_acl_buf, hint, handle);
if (rc != 0)
- /*
- * Object has no links, so it will be destroyed when last
- * reference is released. (XXX not now.)
- */
- GOTO(cleanup, rc);
-
- initialized = 1;
+ GOTO(out_stop, rc);
- if (!(spec->sp_cr_flags & MDS_OPEN_VOLATILE))
+ if (unlikely(spec->sp_cr_flags & MDS_OPEN_VOLATILE)) {
+ mdd_write_lock(env, son, MOR_TGT_CHILD);
+ rc = __mdd_orphan_add(env, son, handle);
+ mdd_write_unlock(env, son);
+ if (rc != 0)
+ GOTO(err_created, rc);
+ } else {
rc = __mdd_index_insert(env, mdd_pobj, mdo2fid(son),
name, S_ISDIR(attr->la_mode), handle,
mdd_object_capa(env, mdd_pobj));
+ if (rc != 0)
+ GOTO(err_created, rc);
- if (rc != 0)
- GOTO(cleanup, rc);
-
- inserted = 1;
-
- if (S_ISLNK(attr->la_mode)) {
- struct lu_ucred *uc = lu_ucred_assert(env);
- struct dt_object *dt = mdd_object_child(son);
- const char *target_name = spec->u.sp_symname;
- int sym_len = strlen(target_name);
- const struct lu_buf *buf;
- loff_t pos = 0;
-
- buf = mdd_buf_get_const(env, target_name, sym_len);
- rc = dt->do_body_ops->dbo_write(env, dt, buf, &pos, handle,
- mdd_object_capa(env, son),
- uc->uc_cap &
- CFS_CAP_SYS_RESOURCE_MASK);
-
- if (rc == sym_len)
- rc = 0;
- else
- GOTO(cleanup, rc = -EFAULT);
- }
+ mdd_links_add(env, son, mdo2fid(mdd_pobj), lname, handle,
+ ldata, 1);
- /* volatile file creation does not update parent directory times */
- if (spec->sp_cr_flags & MDS_OPEN_VOLATILE)
- GOTO(cleanup, rc = 0);
-
- /* update parent directory mtime/ctime */
- *la = *attr;
- la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal(env, mdd_pobj, la, handle, 0);
- if (rc)
- GOTO(cleanup, rc);
+ /* update parent directory mtime/ctime */
+ *la = *attr;
+ la->la_valid = LA_CTIME | LA_MTIME;
+ rc = mdd_update_time(env, mdd_pobj, pattr, la, handle);
+ if (rc)
+ GOTO(err_insert, rc);
+ }
- EXIT;
-cleanup:
- if (rc != 0 && created != 0) {
+ EXIT;
+err_insert:
+ if (rc != 0) {
int rc2;
- if (inserted != 0) {
- if (spec->sp_cr_flags & MDS_OPEN_VOLATILE)
- rc2 = __mdd_orphan_del(env, son, handle);
- else
- rc2 = __mdd_index_delete(env, mdd_pobj, name,
- S_ISDIR(attr->la_mode),
- handle, BYPASS_CAPA);
- if (rc2 != 0)
- goto out_stop;
- }
+ if (spec->sp_cr_flags & MDS_OPEN_VOLATILE)
+ rc2 = __mdd_orphan_del(env, son, handle);
+ else
+ rc2 = __mdd_index_delete(env, mdd_pobj, name,
+ S_ISDIR(attr->la_mode),
+ handle, BYPASS_CAPA);
+ if (rc2 != 0)
+ goto out_stop;
+err_created:
mdd_write_lock(env, son, MOR_TGT_CHILD);
- if (initialized != 0 && S_ISDIR(attr->la_mode)) {
+ if (S_ISDIR(attr->la_mode)) {
/* Drop the reference, no need to delete "."/"..",
* because the object to be destroied directly. */
rc2 = mdo_ref_del(env, son, handle);
goto out_stop;
}
}
-
rc2 = mdo_ref_del(env, son, handle);
if (rc2 != 0) {
mdd_write_unlock(env, son);
mdd_write_unlock(env, son);
}
- mdd_pdo_write_unlock(env, mdd_pobj, dlh);
-out_trans:
- if (rc == 0)
+ if (rc == 0 && fid_is_namespace_visible(mdo2fid(son)))
rc = mdd_changelog_ns_store(env, mdd,
S_ISDIR(attr->la_mode) ? CL_MKDIR :
S_ISREG(attr->la_mode) ? CL_CREATE :
S_ISLNK(attr->la_mode) ? CL_SOFTLINK : CL_MKNOD,
0, son, mdd_pobj, lname, handle);
out_stop:
- mdd_trans_stop(env, mdd, rc, handle);
+ rc2 = mdd_trans_stop(env, mdd, rc, handle);
+ if (rc == 0)
+ rc = rc2;
out_free:
+ if (ldata->ld_buf && ldata->ld_buf->lb_len > OBD_ALLOC_BIG)
+ /* if we vmalloced a large buffer drop it */
+ lu_buf_free(ldata->ld_buf);
+
/* The child object shouldn't be cached anymore */
if (rc)
set_bit(LU_OBJECT_HEARD_BANSHEE,
static int mdd_rename_order(const struct lu_env *env,
struct mdd_device *mdd,
struct mdd_object *src_pobj,
+ const struct lu_attr *pattr,
struct mdd_object *tgt_pobj)
{
/* order of locking, 1 - tgt-src, 0 - src-tgt*/
} else if (lu_fid_eq(&mdd->mdd_root_fid, mdo2fid(tgt_pobj))) {
rc = MDD_RN_TGTSRC;
} else {
- rc = mdd_is_parent(env, mdd, src_pobj, mdo2fid(tgt_pobj), NULL);
+ rc = mdd_is_parent(env, mdd, src_pobj, pattr, mdo2fid(tgt_pobj),
+ NULL);
if (rc == -EREMOTE)
rc = 0;
/* has not mdd_write{read}_lock on any obj yet. */
static int mdd_rename_sanity_check(const struct lu_env *env,
struct mdd_object *src_pobj,
+ const struct lu_attr *pattr,
struct mdd_object *tgt_pobj,
+ const struct lu_attr *tpattr,
struct mdd_object *sobj,
+ const struct lu_attr *cattr,
struct mdd_object *tobj,
- struct lu_attr *so_attr,
- struct lu_attr *tg_attr)
+ const struct lu_attr *tattr)
{
- int rc = 0;
- ENTRY;
+ int rc = 0;
+ ENTRY;
- /* XXX: when get here, sobj must NOT be NULL,
- * the other case has been processed in cml_rename
- * before mdd_rename and enable MDS_PERM_BYPASS. */
- LASSERT(sobj);
+ /* XXX: when get here, sobj must NOT be NULL,
+ * the other case has been processed in cld_rename
+ * before mdd_rename and enable MDS_PERM_BYPASS. */
+ LASSERT(sobj);
- rc = mdd_may_delete(env, src_pobj, sobj, so_attr, NULL, 1, 0);
- if (rc)
- RETURN(rc);
+ rc = mdd_may_delete(env, src_pobj, pattr, sobj, cattr, NULL, 1, 0);
+ if (rc)
+ RETURN(rc);
+
+ /* XXX: when get here, "tobj == NULL" means tobj must
+ * NOT exist (neither on remote MDS, such case has been
+ * processed in cld_rename before mdd_rename and enable
+ * MDS_PERM_BYPASS).
+ * So check may_create, but not check may_unlink. */
+ if (!tobj)
+ rc = mdd_may_create(env, tgt_pobj, tpattr, NULL,
+ (src_pobj != tgt_pobj), false);
+ else
+ rc = mdd_may_delete(env, tgt_pobj, tpattr, tobj, tattr, cattr,
+ (src_pobj != tgt_pobj), 1);
- /* XXX: when get here, "tobj == NULL" means tobj must
- * NOT exist (neither on remote MDS, such case has been
- * processed in cml_rename before mdd_rename and enable
- * MDS_PERM_BYPASS).
- * So check may_create, but not check may_unlink. */
- if (!tobj)
- rc = mdd_may_create(env, tgt_pobj, NULL,
- (src_pobj != tgt_pobj), 0);
- else
- rc = mdd_may_delete(env, tgt_pobj, tobj, tg_attr, so_attr,
- (src_pobj != tgt_pobj), 1);
-
- if (!rc && !tobj && (src_pobj != tgt_pobj) &&
- S_ISDIR(so_attr->la_mode))
- rc = __mdd_may_link(env, tgt_pobj);
+ if (!rc && !tobj && (src_pobj != tgt_pobj) && S_ISDIR(cattr->la_mode))
+ rc = __mdd_may_link(env, tgt_pobj, tpattr);
- RETURN(rc);
+ RETURN(rc);
}
static int mdd_declare_rename(const struct lu_env *env,
- struct mdd_device *mdd,
- struct mdd_object *mdd_spobj,
- struct mdd_object *mdd_tpobj,
- struct mdd_object *mdd_sobj,
- struct mdd_object *mdd_tobj,
- const struct lu_name *tname,
+ struct mdd_device *mdd,
+ struct mdd_object *mdd_spobj,
+ struct mdd_object *mdd_tpobj,
+ struct mdd_object *mdd_sobj,
+ struct mdd_object *mdd_tobj,
+ const struct lu_name *tname,
const struct lu_name *sname,
- struct md_attr *ma,
- struct thandle *handle)
+ struct md_attr *ma,
+ struct linkea_data *ldata,
+ struct thandle *handle)
{
- int rc;
+ struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
+ int rc;
+
+ LASSERT(ma->ma_attr.la_valid & LA_CTIME);
+ la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
LASSERT(mdd_spobj);
LASSERT(mdd_tpobj);
rc = mdo_declare_ref_del(env, mdd_spobj, handle);
if (rc)
return rc;
+ if (mdd_spobj != mdd_tpobj) {
+ rc = mdo_declare_index_delete(env, mdd_sobj, dotdot,
+ handle);
+ if (rc)
+ return rc;
- rc = mdo_declare_index_delete(env, mdd_sobj, dotdot, handle);
+ rc = mdo_declare_index_insert(env, mdd_sobj,
+ mdo2fid(mdd_tpobj),
+ dotdot, handle);
+ if (rc)
+ return rc;
+ }
+ /* new target child can be directory,
+ * counted by target dir's nlink */
+ rc = mdo_declare_ref_add(env, mdd_tpobj, handle);
if (rc)
return rc;
+ }
- rc = mdo_declare_index_insert(env, mdd_sobj, mdo2fid(mdd_tpobj),
- dotdot, handle);
- if (rc)
- return rc;
-
- /* new target child can be directory,
- * counted by target dir's nlink */
- rc = mdo_declare_ref_add(env, mdd_tpobj, handle);
- if (rc)
- return rc;
-
- }
+ la->la_valid = LA_CTIME | LA_MTIME;
+ rc = mdo_declare_attr_set(env, mdd_spobj, la, handle);
+ if (rc != 0)
+ return rc;
- rc = mdo_declare_attr_set(env, mdd_spobj, NULL, handle);
- if (rc)
- return rc;
+ rc = mdo_declare_attr_set(env, mdd_tpobj, la, handle);
+ if (rc != 0)
+ return rc;
- rc = mdo_declare_attr_set(env, mdd_sobj, NULL, handle);
- if (rc)
- return rc;
- mdd_declare_links_add(env, mdd_sobj, handle);
- if (rc)
- return rc;
+ la->la_valid = LA_CTIME;
+ rc = mdo_declare_attr_set(env, mdd_sobj, la, handle);
+ if (rc)
+ return rc;
- rc = mdo_declare_attr_set(env, mdd_tpobj, NULL, handle);
- if (rc)
- return rc;
+ rc = mdd_declare_links_add(env, mdd_sobj, handle, ldata);
+ if (rc)
+ return rc;
/* new name */
rc = mdo_declare_index_insert(env, mdd_tpobj, mdo2fid(mdd_sobj),
return rc;
}
- rc = mdo_declare_attr_set(env, mdd_tobj, NULL, handle);
- if (rc)
- return rc;
-
- mdd_declare_links_add(env, mdd_tobj, handle);
- if (rc)
- return rc;
+ la->la_valid = LA_CTIME;
+ rc = mdo_declare_attr_set(env, mdd_tobj, la, handle);
+ if (rc)
+ return rc;
- rc = mdd_declare_finish_unlink(env, mdd_tobj, ma, handle);
- if (rc)
- return rc;
+ rc = mdd_declare_finish_unlink(env, mdd_tobj, handle);
+ if (rc)
+ return rc;
}
rc = mdd_declare_changelog_ext_store(env, mdd, tname, sname, handle);
struct md_object *tobj, const struct lu_name *ltname,
struct md_attr *ma)
{
- const char *sname = lsname->ln_name;
- const char *tname = ltname->ln_name;
- struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
- struct lu_attr *so_attr = &mdd_env_info(env)->mti_cattr;
- struct lu_attr *tg_attr = &mdd_env_info(env)->mti_pattr;
- struct mdd_object *mdd_spobj = md2mdd_obj(src_pobj); /* source parent */
- struct mdd_object *mdd_tpobj = md2mdd_obj(tgt_pobj);
- struct mdd_device *mdd = mdo2mdd(src_pobj);
- struct mdd_object *mdd_sobj = NULL; /* source object */
- struct mdd_object *mdd_tobj = NULL;
- struct dynlock_handle *sdlh, *tdlh;
- struct thandle *handle;
- const struct lu_fid *tpobj_fid = mdo2fid(mdd_tpobj);
- const struct lu_fid *spobj_fid = mdo2fid(mdd_spobj);
- bool is_dir;
+ const char *sname = lsname->ln_name;
+ const char *tname = ltname->ln_name;
+ struct lu_attr *la = &mdd_env_info(env)->mti_la_for_fix;
+ struct mdd_object *mdd_spobj = md2mdd_obj(src_pobj); /* source parent */
+ struct mdd_object *mdd_tpobj = md2mdd_obj(tgt_pobj);
+ struct mdd_device *mdd = mdo2mdd(src_pobj);
+ struct mdd_object *mdd_sobj = NULL; /* source object */
+ struct mdd_object *mdd_tobj = NULL;
+ struct lu_attr *cattr = MDD_ENV_VAR(env, cattr);
+ struct lu_attr *pattr = MDD_ENV_VAR(env, pattr);
+ struct lu_attr *tattr = MDD_ENV_VAR(env, tattr);
+ struct lu_attr *tpattr = MDD_ENV_VAR(env, tpattr);
+ struct thandle *handle;
+ struct linkea_data *ldata = &mdd_env_info(env)->mti_link_data;
+ const struct lu_fid *tpobj_fid = mdo2fid(mdd_tpobj);
+ const struct lu_fid *spobj_fid = mdo2fid(mdd_spobj);
+ bool is_dir;
bool tobj_ref = 0;
bool tobj_locked = 0;
unsigned cl_flags = 0;
- int rc, rc2;
- ENTRY;
+ int rc, rc2;
+ ENTRY;
+
+ if (tobj)
+ mdd_tobj = md2mdd_obj(tobj);
- if (tobj)
- mdd_tobj = md2mdd_obj(tobj);
+ mdd_sobj = mdd_object_find(env, mdd, lf);
- mdd_sobj = mdd_object_find(env, mdd, lf);
+ rc = mdd_la_get(env, mdd_sobj, cattr, BYPASS_CAPA);
+ if (rc)
+ GOTO(out_pending, rc);
+
+ rc = mdd_la_get(env, mdd_spobj, pattr, BYPASS_CAPA);
+ if (rc)
+ GOTO(out_pending, rc);
+
+ if (mdd_tobj) {
+ rc = mdd_la_get(env, mdd_tobj, tattr, BYPASS_CAPA);
+ if (rc)
+ GOTO(out_pending, rc);
+ }
+
+ rc = mdd_la_get(env, mdd_tpobj, tpattr, BYPASS_CAPA);
+ if (rc)
+ GOTO(out_pending, rc);
+
+ rc = mdd_rename_sanity_check(env, mdd_spobj, pattr, mdd_tpobj, tpattr,
+ mdd_sobj, cattr, mdd_tobj, tattr);
+ if (rc)
+ GOTO(out_pending, rc);
+
+ rc = mdd_name_check(mdd, ltname);
+ if (rc < 0)
+ GOTO(out_pending, rc);
handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
GOTO(out_pending, rc = PTR_ERR(handle));
- rc = mdd_declare_rename(env, mdd, mdd_spobj, mdd_tpobj, mdd_sobj,
- mdd_tobj, lsname, ltname, ma, handle);
- if (rc)
- GOTO(stop, rc);
+ memset(ldata, 0, sizeof(*ldata));
+ mdd_linkea_prepare(env, mdd_sobj, NULL, NULL, mdd_object_fid(mdd_tpobj),
+ ltname, 1, 0, ldata);
+ rc = mdd_declare_rename(env, mdd, mdd_spobj, mdd_tpobj, mdd_sobj,
+ mdd_tobj, lsname, ltname, ma, ldata, handle);
+ if (rc)
+ GOTO(stop, rc);
rc = mdd_trans_start(env, mdd, handle);
if (rc)
GOTO(stop, rc);
/* FIXME: Should consider tobj and sobj too in rename_lock. */
- rc = mdd_rename_order(env, mdd, mdd_spobj, mdd_tpobj);
- if (rc < 0)
- GOTO(cleanup_unlocked, rc);
-
- /* Get locks in determined order */
- if (rc == MDD_RN_SAME) {
- sdlh = mdd_pdo_write_lock(env, mdd_spobj,
- sname, MOR_SRC_PARENT);
- /* check hashes to determine do we need one lock or two */
- if (mdd_name2hash(sname) != mdd_name2hash(tname))
- tdlh = mdd_pdo_write_lock(env, mdd_tpobj, tname,
- MOR_TGT_PARENT);
- else
- tdlh = sdlh;
- } else if (rc == MDD_RN_SRCTGT) {
- sdlh = mdd_pdo_write_lock(env, mdd_spobj, sname,MOR_SRC_PARENT);
- tdlh = mdd_pdo_write_lock(env, mdd_tpobj, tname,MOR_TGT_PARENT);
- } else {
- tdlh = mdd_pdo_write_lock(env, mdd_tpobj, tname,MOR_SRC_PARENT);
- sdlh = mdd_pdo_write_lock(env, mdd_spobj, sname,MOR_TGT_PARENT);
- }
- if (sdlh == NULL || tdlh == NULL)
- GOTO(cleanup, rc = -ENOMEM);
-
- rc = mdd_la_get(env, mdd_sobj, so_attr,
- mdd_object_capa(env, mdd_sobj));
- if (rc)
- GOTO(cleanup, rc);
-
- if (mdd_tobj) {
- rc = mdd_la_get(env, mdd_tobj, tg_attr,
- mdd_object_capa(env, mdd_tobj));
- if (rc)
- GOTO(cleanup, rc);
- }
-
- rc = mdd_rename_sanity_check(env, mdd_spobj, mdd_tpobj, mdd_sobj,
- mdd_tobj, so_attr, tg_attr);
- if (rc)
- GOTO(cleanup, rc);
+ rc = mdd_rename_order(env, mdd, mdd_spobj, pattr, mdd_tpobj);
+ if (rc < 0)
+ GOTO(cleanup_unlocked, rc);
- is_dir = S_ISDIR(so_attr->la_mode);
+ is_dir = S_ISDIR(cattr->la_mode);
/* Remove source name from source directory */
rc = __mdd_index_delete(env, mdd_spobj, sname, is_dir, handle,
la->la_ctime = la->la_mtime = ma->ma_attr.la_ctime;
/* XXX: mdd_sobj must be local one if it is NOT NULL. */
- if (mdd_sobj) {
- la->la_valid = LA_CTIME;
- rc = mdd_attr_check_set_internal(env, mdd_sobj, la, handle, 0);
- if (rc)
- GOTO(fixup_tpobj, rc);
- }
+ if (mdd_sobj) {
+ la->la_valid = LA_CTIME;
+ rc = mdd_update_time(env, mdd_sobj, cattr, la, handle);
+ if (rc)
+ GOTO(fixup_tpobj, rc);
+ }
/* Remove old target object
* For tobj is remote case cmm layer has processed
mdo_ref_del(env, mdd_tobj, handle);
/* Remove dot reference. */
- if (S_ISDIR(tg_attr->la_mode))
+ if (S_ISDIR(tattr->la_mode))
mdo_ref_del(env, mdd_tobj, handle);
tobj_ref = 1;
/* fetch updated nlink */
- rc = mdd_la_get(env, mdd_tobj, tg_attr,
- mdd_object_capa(env, mdd_tobj));
+ rc = mdd_la_get(env, mdd_tobj, tattr, BYPASS_CAPA);
if (rc != 0) {
CERROR("%s: Failed to get nlink for tobj "
DFID": rc = %d\n",
}
la->la_valid = LA_CTIME;
- rc = mdd_attr_check_set_internal(env, mdd_tobj, la, handle, 0);
+ rc = mdd_update_time(env, mdd_tobj, tattr, la, handle);
if (rc != 0) {
CERROR("%s: Failed to set ctime for tobj "
DFID": rc = %d\n",
}
/* XXX: this transfer to ma will be removed with LOD/OSP */
- ma->ma_attr = *tg_attr;
+ ma->ma_attr = *tattr;
ma->ma_valid |= MA_INODE;
- rc = mdd_finish_unlink(env, mdd_tobj, ma, handle);
+ rc = mdd_finish_unlink(env, mdd_tobj, ma, mdd_tpobj, ltname,
+ handle);
if (rc != 0) {
CERROR("%s: Failed to unlink tobj "
DFID": rc = %d\n",
}
/* fetch updated nlink */
- rc = mdd_la_get(env, mdd_tobj, tg_attr,
- mdd_object_capa(env, mdd_tobj));
+ rc = mdd_la_get(env, mdd_tobj, tattr, BYPASS_CAPA);
if (rc != 0) {
CERROR("%s: Failed to get nlink for tobj "
DFID": rc = %d\n",
GOTO(fixup_tpobj, rc);
}
/* XXX: this transfer to ma will be removed with LOD/OSP */
- ma->ma_attr = *tg_attr;
+ ma->ma_attr = *tattr;
ma->ma_valid |= MA_INODE;
- if (so_attr->la_nlink == 0)
+ if (tattr->la_nlink == 0) {
cl_flags |= CLF_RENAME_LAST;
+ if (mdd_hsm_archive_exists(env, mdd_tobj, ma))
+ cl_flags |= CLF_RENAME_LAST_EXISTS;
+ }
}
- la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal(env, mdd_spobj, la, handle, 0);
- if (rc)
- GOTO(fixup_tpobj, rc);
+ la->la_valid = LA_CTIME | LA_MTIME;
+ rc = mdd_update_time(env, mdd_spobj, pattr, la, handle);
+ if (rc)
+ GOTO(fixup_tpobj, rc);
- if (mdd_spobj != mdd_tpobj) {
- la->la_valid = LA_CTIME | LA_MTIME;
- rc = mdd_attr_check_set_internal(env, mdd_tpobj, la,
- handle, 0);
- }
+ if (mdd_spobj != mdd_tpobj) {
+ la->la_valid = LA_CTIME | LA_MTIME;
+ rc = mdd_update_time(env, mdd_tpobj, tpattr, la, handle);
+ }
- if (rc == 0 && mdd_sobj) {
- mdd_write_lock(env, mdd_sobj, MOR_SRC_CHILD);
+ if (rc == 0 && mdd_sobj) {
+ mdd_write_lock(env, mdd_sobj, MOR_SRC_CHILD);
rc = mdd_links_rename(env, mdd_sobj, mdo2fid(mdd_spobj), lsname,
- mdo2fid(mdd_tpobj), ltname, handle, 0, 0);
+ mdo2fid(mdd_tpobj), ltname, handle, NULL,
+ 0, 0);
if (rc == -ENOENT)
/* Old files might not have EA entry */
mdd_links_add(env, mdd_sobj, mdo2fid(mdd_spobj),
- lsname, handle, 0);
+ lsname, handle, NULL, 0);
mdd_write_unlock(env, mdd_sobj);
/* We don't fail the transaction if the link ea can't be
updated -- fid2path will use alternate lookup method. */
}
fixup_spobj:
- if (rc && is_dir && mdd_sobj) {
- rc2 = __mdd_index_delete_only(env, mdd_sobj, dotdot, handle,
- BYPASS_CAPA);
+ if (rc && is_dir && mdd_sobj && mdd_spobj != mdd_tpobj) {
+ rc2 = __mdd_index_delete_only(env, mdd_sobj, dotdot, handle,
+ BYPASS_CAPA);
- if (rc2)
- CWARN("sp obj dotdot delete error %d\n",rc2);
+ if (rc2)
+ CWARN("%s: sp obj dotdot delete error: rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name, rc2);
- rc2 = __mdd_index_insert_only(env, mdd_sobj, spobj_fid,
- dotdot, handle, BYPASS_CAPA);
- if (rc2)
- CWARN("sp obj dotdot insert error %d\n",rc2);
- }
+ rc2 = __mdd_index_insert_only(env, mdd_sobj, spobj_fid,
+ dotdot, handle, BYPASS_CAPA);
+ if (rc2)
+ CWARN("%s: sp obj dotdot insert error: rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name, rc2);
+ }
fixup_spobj2:
if (rc) {
cleanup:
if (tobj_locked)
mdd_write_unlock(env, mdd_tobj);
- if (likely(tdlh) && sdlh != tdlh)
- mdd_pdo_write_unlock(env, mdd_tpobj, tdlh);
- if (likely(sdlh))
- mdd_pdo_write_unlock(env, mdd_spobj, sdlh);
cleanup_unlocked:
if (rc == 0)
rc = mdd_changelog_ext_ns_store(env, mdd, CL_RENAME, cl_flags,
stop:
mdd_trans_stop(env, mdd, rc, handle);
- if (mdd_sobj)
- mdd_object_put(env, mdd_sobj);
out_pending:
- return rc;
+ mdd_object_put(env, mdd_sobj);
+ return rc;
}
/**
- * The data that link search is done on.
- */
-struct mdd_link_data {
- /**
- * Buffer to keep link EA body.
- */
- struct lu_buf *ml_buf;
- /**
- * The matched header, entry and its lenght in the EA
- */
- struct link_ea_header *ml_leh;
- struct link_ea_entry *ml_lee;
- int ml_reclen;
-};
-
-static int mdd_links_new(const struct lu_env *env,
- struct mdd_link_data *ldata)
-{
- ldata->ml_buf = mdd_buf_alloc(env, CFS_PAGE_SIZE);
- if (ldata->ml_buf->lb_buf == NULL)
- return -ENOMEM;
- ldata->ml_leh = ldata->ml_buf->lb_buf;
- ldata->ml_leh->leh_magic = LINK_EA_MAGIC;
- ldata->ml_leh->leh_len = sizeof(struct link_ea_header);
- ldata->ml_leh->leh_reccount = 0;
- return 0;
-}
-
-/** Read the link EA into a temp buffer.
- * Uses the mdd_thread_info::mti_big_buf since it is generally large.
- * A pointer to the buffer is stored in \a ldata::ml_buf.
- *
- * \retval 0 or error
- */
-int mdd_links_read(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- struct mdd_link_data *ldata)
+ * During migration once the parent FID has been changed,
+ * we need update the parent FID in linkea.
+ **/
+static int mdd_linkea_update_child_internal(const struct lu_env *env,
+ struct mdd_object *parent,
+ struct mdd_object *child,
+ const char *name, int namelen,
+ struct thandle *handle,
+ bool declare)
{
- struct lustre_capa *capa;
- struct link_ea_header *leh;
- int rc;
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct linkea_data ldata = {0};
+ struct lu_buf *buf = &info->mti_link_buf;
+ int count;
+ int rc = 0;
- /* First try a small buf */
- LASSERT(env != NULL);
- ldata->ml_buf = mdd_buf_alloc(env, CFS_PAGE_SIZE);
- if (ldata->ml_buf->lb_buf == NULL)
- return -ENOMEM;
+ ENTRY;
- if (!mdd_object_exists(mdd_obj))
- return -ENODATA;
+ buf = lu_buf_check_and_alloc(buf, PATH_MAX);
+ if (buf->lb_buf == NULL)
+ RETURN(-ENOMEM);
- capa = mdd_object_capa(env, mdd_obj);
- rc = mdo_xattr_get(env, mdd_obj, ldata->ml_buf,
- XATTR_NAME_LINK, capa);
- if (rc == -ERANGE) {
- /* Buf was too small, figure out what we need. */
- mdd_buf_put(ldata->ml_buf);
- rc = mdo_xattr_get(env, mdd_obj, ldata->ml_buf,
- XATTR_NAME_LINK, capa);
- if (rc < 0)
- return rc;
- ldata->ml_buf = mdd_buf_alloc(env, rc);
- if (ldata->ml_buf->lb_buf == NULL)
- return -ENOMEM;
- rc = mdo_xattr_get(env, mdd_obj, ldata->ml_buf,
- XATTR_NAME_LINK, capa);
+ ldata.ld_buf = buf;
+ rc = mdd_links_read(env, child, &ldata);
+ if (rc != 0) {
+ if (rc == -ENOENT || rc == -ENODATA)
+ rc = 0;
+ RETURN(rc);
}
- if (rc < 0)
- return rc;
- leh = ldata->ml_buf->lb_buf;
- if (leh->leh_magic == __swab32(LINK_EA_MAGIC)) {
- leh->leh_magic = LINK_EA_MAGIC;
- leh->leh_reccount = __swab32(leh->leh_reccount);
- leh->leh_len = __swab64(leh->leh_len);
- /* entries are swabbed by mdd_lee_unpack */
- }
- if (leh->leh_magic != LINK_EA_MAGIC)
- return -EINVAL;
- if (leh->leh_reccount == 0)
- return -ENODATA;
+ LASSERT(ldata.ld_leh != NULL);
+ ldata.ld_lee = (struct link_ea_entry *)(ldata.ld_leh + 1);
+ for (count = 0; count < ldata.ld_leh->leh_reccount; count++) {
+ struct mdd_device *mdd = mdo2mdd(&child->mod_obj);
+ struct lu_name lname;
+ struct lu_fid fid;
+
+ linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen,
+ &lname, &fid);
+
+ if (strncmp(lname.ln_name, name, namelen) != 0 ||
+ lu_fid_eq(&fid, mdd_object_fid(parent))) {
+ ldata.ld_lee = (struct link_ea_entry *)
+ ((char *)ldata.ld_lee +
+ ldata.ld_reclen);
+ continue;
+ }
- ldata->ml_leh = leh;
- return 0;
+ CDEBUG(D_INFO, "%s: update "DFID" with %.*s:"DFID"\n",
+ mdd2obd_dev(mdd)->obd_name, PFID(mdd_object_fid(child)),
+ lname.ln_namelen, lname.ln_name,
+ PFID(mdd_object_fid(parent)));
+ /* update to the new parent fid */
+ linkea_entry_pack(ldata.ld_lee, &lname,
+ mdd_object_fid(parent));
+ if (declare)
+ rc = mdd_declare_links_add(env, child, handle, &ldata);
+ else
+ rc = mdd_links_write(env, child, &ldata, handle);
+ break;
+ }
+ RETURN(rc);
}
-/** Read the link EA into a temp buffer.
- * Uses the name_buf since it is generally large.
- * \retval IS_ERR err
- * \retval ptr to \a lu_buf (always \a mti_big_buf)
- */
-struct lu_buf *mdd_links_get(const struct lu_env *env,
- struct mdd_object *mdd_obj)
+static int mdd_linkea_declare_update_child(const struct lu_env *env,
+ struct mdd_object *parent,
+ struct mdd_object *child,
+ const char *name, int namelen,
+ struct thandle *handle)
{
- struct mdd_link_data ldata = { 0 };
- int rc;
-
- rc = mdd_links_read(env, mdd_obj, &ldata);
- return rc ? ERR_PTR(rc) : ldata.ml_buf;
+ return mdd_linkea_update_child_internal(env, parent, child, name,
+ namelen, handle, true);
}
-static int mdd_links_write(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- struct mdd_link_data *ldata,
- struct thandle *handle)
+static int mdd_linkea_update_child(const struct lu_env *env,
+ struct mdd_object *parent,
+ struct mdd_object *child,
+ const char *name, int namelen,
+ struct thandle *handle)
{
- const struct lu_buf *buf = mdd_buf_get_const(env, ldata->ml_buf->lb_buf,
- ldata->ml_leh->leh_len);
- return mdo_xattr_set(env, mdd_obj, buf, XATTR_NAME_LINK, 0, handle,
- mdd_object_capa(env, mdd_obj));
+ return mdd_linkea_update_child_internal(env, parent, child, name,
+ namelen, handle, false);
}
-/** Pack a link_ea_entry.
- * All elements are stored as chars to avoid alignment issues.
- * Numbers are always big-endian
- * \retval record length
- */
-static int mdd_lee_pack(struct link_ea_entry *lee, const struct lu_name *lname,
- const struct lu_fid *pfid)
+static int mdd_update_linkea_internal(const struct lu_env *env,
+ struct mdd_object *mdd_pobj,
+ struct mdd_object *mdd_sobj,
+ struct mdd_object *mdd_tobj,
+ const struct lu_name *child_name,
+ struct thandle *handle,
+ int declare)
{
- struct lu_fid tmpfid;
- int reclen;
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct linkea_data *ldata = &info->mti_link_data;
+ int count;
+ int rc = 0;
+ ENTRY;
+
+ rc = mdd_links_read(env, mdd_sobj, ldata);
+ if (rc != 0) {
+ if (rc == -ENOENT || rc == -ENODATA)
+ rc = 0;
+ RETURN(rc);
+ }
+
+ if (declare)
+ rc = mdd_declare_links_add(env, mdd_tobj, handle, ldata);
+ else
+ rc = mdd_links_write(env, mdd_tobj, ldata, handle);
- fid_cpu_to_be(&tmpfid, pfid);
- memcpy(&lee->lee_parent_fid, &tmpfid, sizeof(tmpfid));
- memcpy(lee->lee_name, lname->ln_name, lname->ln_namelen);
- reclen = sizeof(struct link_ea_entry) + lname->ln_namelen;
+ if (rc != 0)
+ RETURN(rc);
+
+ /* If it is mulitple links file, we need update the name entry for
+ * all parent */
+ LASSERT(ldata->ld_leh != NULL);
+ ldata->ld_lee = (struct link_ea_entry *)(ldata->ld_leh + 1);
+ for (count = 0; count < ldata->ld_leh->leh_reccount; count++) {
+ struct mdd_device *mdd = mdo2mdd(&mdd_sobj->mod_obj);
+ struct mdd_object *pobj;
+ struct lu_name lname;
+ struct lu_fid fid;
+
+ linkea_entry_unpack(ldata->ld_lee, &ldata->ld_reclen,
+ &lname, &fid);
+ ldata->ld_lee = (struct link_ea_entry *)((char *)ldata->ld_lee +
+ ldata->ld_reclen);
+ pobj = mdd_object_find(env, mdd, &fid);
+ if (IS_ERR(pobj)) {
+ CWARN("%s: cannot find obj "DFID": rc = %ld\n",
+ mdd2obd_dev(mdd)->obd_name, PFID(&fid),
+ PTR_ERR(pobj));
+ continue;
+ }
+
+ if (!mdd_object_exists(pobj)) {
+ CDEBUG(D_INFO, "%s: obj "DFID" does not exist\n",
+ mdd2obd_dev(mdd)->obd_name, PFID(&fid));
+ GOTO(next_put, rc);
+ }
+
+ if (pobj == mdd_pobj &&
+ lname.ln_namelen == child_name->ln_namelen &&
+ strncmp(lname.ln_name, child_name->ln_name,
+ lname.ln_namelen) == 0) {
+ CDEBUG(D_INFO, "%s: skip its own %s: "DFID"\n",
+ mdd2obd_dev(mdd)->obd_name, child_name->ln_name,
+ PFID(&fid));
+ GOTO(next_put, rc);
+ }
+
+ CDEBUG(D_INFO, "%s: update "DFID" with "DNAME":"DFID"\n",
+ mdd2obd_dev(mdd)->obd_name, PFID(mdd_object_fid(pobj)),
+ PNAME(&lname), PFID(mdd_object_fid(mdd_tobj)));
+
+ if (declare) {
+ /* Remove source name from source directory */
+ /* Insert new fid with target name into target dir */
+ rc = mdo_declare_index_delete(env, pobj, lname.ln_name,
+ handle);
+ if (rc)
+ GOTO(next_put, rc);
+
+ rc = mdo_declare_index_insert(env, pobj,
+ mdd_object_fid(mdd_tobj),
+ lname.ln_name, handle);
+ if (rc)
+ GOTO(next_put, rc);
+
+ rc = mdo_declare_ref_add(env, mdd_tobj, handle);
+ if (rc)
+ GOTO(next_put, rc);
+
+ rc = mdo_declare_ref_del(env, mdd_sobj, handle);
+ if (rc)
+ GOTO(next_put, rc);
+ } else {
+ rc = __mdd_index_delete(env, pobj, lname.ln_name,
+ 0, handle,
+ mdd_object_capa(env, pobj));
+ if (rc)
+ GOTO(next_put, rc);
+
+ rc = __mdd_index_insert(env, pobj,
+ mdd_object_fid(mdd_tobj),
+ lname.ln_name, 0, handle,
+ mdd_object_capa(env, pobj));
+ if (rc)
+ GOTO(next_put, rc);
+
+ mdd_write_lock(env, mdd_tobj, MOR_SRC_CHILD);
+ rc = mdo_ref_add(env, mdd_tobj, handle);
+ mdd_write_unlock(env, mdd_tobj);
+ if (rc)
+ GOTO(next_put, rc);
- lee->lee_reclen[0] = (reclen >> 8) & 0xff;
- lee->lee_reclen[1] = reclen & 0xff;
- return reclen;
+ mdd_write_lock(env, mdd_sobj, MOR_TGT_CHILD);
+ mdo_ref_del(env, mdd_sobj, handle);
+ mdd_write_unlock(env, mdd_sobj);
+ }
+next_put:
+ mdd_object_put(env, pobj);
+ if (rc != 0)
+ break;
+ }
+
+ RETURN(rc);
}
-void mdd_lee_unpack(const struct link_ea_entry *lee, int *reclen,
- struct lu_name *lname, struct lu_fid *pfid)
+static int mdd_migrate_xattrs(const struct lu_env *env,
+ struct mdd_object *mdd_sobj,
+ struct mdd_object *mdd_tobj)
{
- *reclen = (lee->lee_reclen[0] << 8) | lee->lee_reclen[1];
- memcpy(pfid, &lee->lee_parent_fid, sizeof(*pfid));
- fid_be_to_cpu(pfid, pfid);
- lname->ln_name = lee->lee_name;
- lname->ln_namelen = *reclen - sizeof(struct link_ea_entry);
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct mdd_device *mdd = mdo2mdd(&mdd_sobj->mod_obj);
+ char *xname;
+ struct thandle *handle;
+ struct lu_buf xbuf;
+ int xlen;
+ int rem;
+ int xsize;
+ int list_xsize;
+ struct lu_buf list_xbuf;
+ int rc;
+
+ /* retrieve xattr list from the old object */
+ list_xsize = mdo_xattr_list(env, mdd_sobj, &LU_BUF_NULL,
+ mdd_object_capa(env, mdd_sobj));
+ if (list_xsize == -ENODATA)
+ return 0;
+
+ if (list_xsize < 0)
+ return list_xsize;
+
+ lu_buf_check_and_alloc(&info->mti_big_buf, list_xsize);
+ if (info->mti_big_buf.lb_buf == NULL)
+ return -ENOMEM;
+
+ list_xbuf.lb_buf = info->mti_big_buf.lb_buf;
+ list_xbuf.lb_len = list_xsize;
+ rc = mdo_xattr_list(env, mdd_sobj, &list_xbuf,
+ mdd_object_capa(env, mdd_sobj));
+ if (rc < 0)
+ return rc;
+ rc = 0;
+ rem = list_xsize;
+ xname = list_xbuf.lb_buf;
+ while (rem > 0) {
+ xlen = strnlen(xname, rem - 1) + 1;
+ if (strcmp(XATTR_NAME_LINK, xname) == 0 ||
+ strcmp(XATTR_NAME_LMA, xname) == 0 ||
+ strcmp(XATTR_NAME_LMV, xname) == 0)
+ goto next;
+
+ /* For directory, if there are default layout, migrate here */
+ if (strcmp(XATTR_NAME_LOV, xname) == 0 &&
+ !S_ISDIR(lu_object_attr(&mdd_sobj->mod_obj.mo_lu)))
+ goto next;
+
+ xsize = mdo_xattr_get(env, mdd_sobj, &LU_BUF_NULL,
+ xname,
+ mdd_object_capa(env, mdd_sobj));
+ if (xsize == -ENODATA)
+ goto next;
+ if (xsize < 0)
+ GOTO(out, rc);
+
+ lu_buf_check_and_alloc(&info->mti_link_buf, xsize);
+ if (info->mti_link_buf.lb_buf == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ xbuf.lb_len = xsize;
+ xbuf.lb_buf = info->mti_link_buf.lb_buf;
+ rc = mdo_xattr_get(env, mdd_sobj, &xbuf, xname,
+ mdd_object_capa(env, mdd_sobj));
+ if (rc == -ENODATA)
+ goto next;
+ if (rc < 0)
+ GOTO(out, rc);
+
+ handle = mdd_trans_create(env, mdd);
+ if (IS_ERR(handle))
+ GOTO(out, rc = PTR_ERR(handle));
+
+ rc = mdo_declare_xattr_set(env, mdd_tobj, &xbuf, xname, 0,
+ handle);
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+ /* Note: this transaction is part of migration, and it is not
+ * the last step of migration, so we set th_local = 1 to avoid
+ * update last rcvd for this transaction */
+ handle->th_local = 1;
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+
+ rc = mdo_xattr_set(env, mdd_tobj, &xbuf, xname, 0, handle,
+ mdd_object_capa(env, mdd_sobj));
+ if (rc == -EEXIST)
+ GOTO(stop_trans, rc = 0);
+
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+stop_trans:
+ mdd_trans_stop(env, mdd, rc, handle);
+ if (rc != 0)
+ GOTO(out, rc);
+next:
+ rem -= xlen;
+ memmove(xname, xname + xlen, rem);
+ }
+out:
+ return rc;
}
-static int mdd_declare_links_add(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- struct thandle *handle)
+static int mdd_declare_migrate_create(const struct lu_env *env,
+ struct mdd_object *mdd_pobj,
+ struct mdd_object *mdd_sobj,
+ struct mdd_object *mdd_tobj,
+ struct md_op_spec *spec,
+ struct lu_attr *la,
+ union lmv_mds_md *mgr_ea,
+ struct thandle *handle)
{
- int rc;
+ struct lu_attr *la_flag = MDD_ENV_VAR(env, la_for_fix);
+ const struct lu_buf *buf;
+ int rc;
+ int mgr_easize;
- /* XXX: max size? */
- rc = mdo_declare_xattr_set(env, mdd_obj,
- mdd_buf_get_const(env, NULL, 4096),
- XATTR_NAME_LINK, 0, handle);
+ rc = mdd_declare_object_create_internal(env, mdd_pobj, mdd_tobj, la,
+ handle, spec, NULL);
+ if (rc != 0)
+ return rc;
- return rc;
-}
+ rc = mdd_declare_object_initialize(env, mdd_pobj, mdd_tobj, la,
+ handle);
+ if (rc != 0)
+ return rc;
-/* For pathologic linkers, we don't want to spend lots of time scanning the
- * link ea. Limit ourseleves to something reasonable; links not in the EA
- * can be looked up via (slower) parent lookup.
- */
-#define LINKEA_MAX_COUNT 128
+ if (S_ISLNK(la->la_mode)) {
+ const char *target_name = spec->u.sp_symname;
+ int sym_len = strlen(target_name);
+ const struct lu_buf *buf;
-/** Add a record to the end of link ea buf */
-static int mdd_links_add_buf(const struct lu_env *env,
- struct mdd_link_data *ldata,
- const struct lu_name *lname,
- const struct lu_fid *pfid)
-{
- LASSERT(ldata->ml_leh != NULL);
+ buf = mdd_buf_get_const(env, target_name, sym_len);
+ rc = dt_declare_record_write(env, mdd_object_child(mdd_tobj),
+ buf, 0, handle);
+ if (rc != 0)
+ return rc;
+ }
- if (lname == NULL || pfid == NULL)
- return -EINVAL;
+ if (spec->u.sp_ea.eadata != NULL && spec->u.sp_ea.eadatalen != 0) {
+ buf = mdd_buf_get_const(env, spec->u.sp_ea.eadata,
+ spec->u.sp_ea.eadatalen);
+ rc = mdo_declare_xattr_set(env, mdd_tobj, buf, XATTR_NAME_LOV,
+ 0, handle);
+ if (rc)
+ return rc;
+ }
+
+ mgr_easize = lmv_mds_md_size(2, LMV_MAGIC_V1);
+ buf = mdd_buf_get_const(env, mgr_ea, mgr_easize);
+ rc = mdo_declare_xattr_set(env, mdd_sobj, buf, XATTR_NAME_LMV,
+ 0, handle);
+ if (rc)
+ return rc;
- /* Make sure our buf is big enough for the new one */
- if (ldata->ml_leh->leh_reccount > LINKEA_MAX_COUNT)
- return -EOVERFLOW;
+ la_flag->la_valid = LA_FLAGS;
+ la_flag->la_flags = la->la_flags | LUSTRE_IMMUTABLE_FL;
+ mdd_flags_xlate(mdd_sobj, la_flag->la_flags);
+ rc = mdo_declare_attr_set(env, mdd_sobj, la_flag, handle);
- ldata->ml_reclen = lname->ln_namelen + sizeof(struct link_ea_entry);
- if (ldata->ml_leh->leh_len + ldata->ml_reclen >
- ldata->ml_buf->lb_len) {
- if (mdd_buf_grow(env, ldata->ml_leh->leh_len +
- ldata->ml_reclen) < 0)
- return -ENOMEM;
+ return rc;
+}
+
+static int mdd_migrate_create(const struct lu_env *env,
+ struct mdd_object *mdd_pobj,
+ struct mdd_object *mdd_sobj,
+ struct mdd_object *mdd_tobj,
+ struct lu_attr *la)
+{
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct mdd_device *mdd = mdo2mdd(&mdd_sobj->mod_obj);
+ struct md_op_spec *spec = &info->mti_spec;
+ struct lu_buf lmm_buf = { 0 };
+ struct lu_buf link_buf = { 0 };
+ const struct lu_buf *buf;
+ struct thandle *handle;
+ struct lmv_mds_md_v1 *mgr_ea;
+ struct lu_attr *la_flag = MDD_ENV_VAR(env, la_for_fix);
+ struct dt_allocation_hint *hint = &mdd_env_info(env)->mti_hint;
+ int mgr_easize;
+ int rc;
+ ENTRY;
+
+ /* prepare spec for create */
+ memset(spec, 0, sizeof(*spec));
+ spec->sp_cr_lookup = 0;
+ spec->sp_feat = &dt_directory_features;
+ if (S_ISLNK(la->la_mode)) {
+ buf = lu_buf_check_and_alloc(
+ &mdd_env_info(env)->mti_big_buf,
+ la->la_size + 1);
+ link_buf = *buf;
+ link_buf.lb_len = la->la_size + 1;
+ rc = mdd_readlink(env, &mdd_sobj->mod_obj, &link_buf);
+ if (rc <= 0) {
+ rc = rc != 0 ? rc : -EFAULT;
+ CERROR("%s: "DFID" readlink failed: rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name,
+ PFID(mdd_object_fid(mdd_sobj)), rc);
+ RETURN(rc);
+ }
+ spec->u.sp_symname = link_buf.lb_buf;
+ } else if S_ISREG(la->la_mode) {
+ /* retrieve lov of the old object */
+ rc = mdd_get_lov_ea(env, mdd_sobj, &lmm_buf);
+ if (rc != 0 && rc != -ENODATA)
+ RETURN(rc);
+ if (lmm_buf.lb_buf != NULL && lmm_buf.lb_len != 0) {
+ spec->u.sp_ea.eadata = lmm_buf.lb_buf;
+ spec->u.sp_ea.eadatalen = lmm_buf.lb_len;
+ spec->sp_cr_flags |= MDS_OPEN_HAS_EA;
+ }
}
- ldata->ml_leh = ldata->ml_buf->lb_buf;
- ldata->ml_lee = ldata->ml_buf->lb_buf + ldata->ml_leh->leh_len;
- ldata->ml_reclen = mdd_lee_pack(ldata->ml_lee, lname, pfid);
- ldata->ml_leh->leh_len += ldata->ml_reclen;
- ldata->ml_leh->leh_reccount++;
- CDEBUG(D_INODE, "New link_ea name '%.*s' is added\n",
- lname->ln_namelen, lname->ln_name);
- return 0;
+ mgr_ea = (struct lmv_mds_md_v1 *)info->mti_xattr_buf;
+ mgr_ea->lmv_magic = cpu_to_le32(LMV_MAGIC_V1);
+ mgr_ea->lmv_stripe_count = cpu_to_le32(2);
+ mgr_ea->lmv_master_mdt_index = mdd_seq_site(mdd)->ss_node_id;
+ mgr_ea->lmv_hash_type = cpu_to_le32(LMV_HASH_FLAG_MIGRATION);
+ fid_cpu_to_le(&mgr_ea->lmv_master_fid, mdd_object_fid(mdd_sobj));
+ fid_cpu_to_le(&mgr_ea->lmv_stripe_fids[0], mdd_object_fid(mdd_sobj));
+ fid_cpu_to_le(&mgr_ea->lmv_stripe_fids[1], mdd_object_fid(mdd_tobj));
+
+ mdd_object_make_hint(env, mdd_pobj, mdd_tobj, la, spec, hint);
+
+ handle = mdd_trans_create(env, mdd);
+ if (IS_ERR(handle))
+ GOTO(out_free, rc = PTR_ERR(handle));
+
+ /* Note: this transaction is part of migration, and it is not
+ * the last step of migration, so we set th_local = 1 to avoid
+ * update last rcvd for this transaction */
+ handle->th_local = 1;
+ rc = mdd_declare_migrate_create(env, mdd_pobj, mdd_sobj, mdd_tobj,
+ spec, la,
+ (union lmv_mds_md *)info->mti_xattr_buf,
+ handle);
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+
+ /* create the target object */
+ rc = mdd_object_create(env, mdd_pobj, mdd_tobj, la, spec, NULL, NULL,
+ hint, handle);
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+
+ /* Set MIGRATE EA on the source inode, so once the migration needs
+ * to be re-done during failover, the re-do process can locate the
+ * target object which is already being created. */
+ mgr_easize = lmv_mds_md_size(2, LMV_MAGIC_V1);
+ buf = mdd_buf_get_const(env, mgr_ea, mgr_easize);
+ rc = mdo_xattr_set(env, mdd_sobj, buf, XATTR_NAME_LMV, 0,
+ handle, mdd_object_capa(env, mdd_sobj));
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+
+ /* Set immutable flag, so any modification is disabled until
+ * the migration is done. Once the migration is interrupted,
+ * if the resume process find the migrating object has both
+ * IMMUTALBE flag and MIGRATE EA, it need to clear IMMUTABLE
+ * flag and approve the migration */
+ la_flag->la_valid = LA_FLAGS;
+ la_flag->la_flags = la->la_flags | LUSTRE_IMMUTABLE_FL;
+ mdd_flags_xlate(mdd_sobj, la_flag->la_flags);
+ rc = mdo_attr_set(env, mdd_sobj, la_flag, handle,
+ mdd_object_capa(env, mdd_sobj));
+stop_trans:
+ if (handle != NULL)
+ mdd_trans_stop(env, mdd, rc, handle);
+out_free:
+ if (lmm_buf.lb_buf != NULL)
+ OBD_FREE(lmm_buf.lb_buf, lmm_buf.lb_len);
+ RETURN(rc);
}
-/** Del the current record from the link ea buf */
-static void mdd_links_del_buf(const struct lu_env *env,
- struct mdd_link_data *ldata,
- const struct lu_name *lname)
+static int mdd_migrate_entries(const struct lu_env *env,
+ struct mdd_object *mdd_sobj,
+ struct mdd_object *mdd_tobj)
{
- LASSERT(ldata->ml_leh != NULL);
+ struct dt_object *next = mdd_object_child(mdd_sobj);
+ struct mdd_device *mdd = mdo2mdd(&mdd_sobj->mod_obj);
+ struct dt_object *dt_tobj = mdd_object_child(mdd_tobj);
+ struct thandle *handle;
+ struct dt_it *it;
+ const struct dt_it_ops *iops;
+ int rc;
+ int result;
+ struct lu_dirent *ent;
+ ENTRY;
+
+ OBD_ALLOC(ent, NAME_MAX + sizeof(*ent) + 1);
+ if (ent == NULL)
+ RETURN(-ENOMEM);
+
+ if (!dt_try_as_dir(env, next))
+ GOTO(out_ent, rc = -ENOTDIR);
+ /*
+ * iterate directories
+ */
+ iops = &next->do_index_ops->dio_it;
+ it = iops->init(env, next, LUDA_FID | LUDA_TYPE,
+ mdd_object_capa(env, mdd_sobj));
+ if (IS_ERR(it))
+ GOTO(out_ent, rc = PTR_ERR(it));
+
+ rc = iops->load(env, it, 0);
+ if (rc == 0)
+ rc = iops->next(env, it);
+ else if (rc > 0)
+ rc = 0;
+ /*
+ * At this point and across for-loop:
+ *
+ * rc == 0 -> ok, proceed.
+ * rc > 0 -> end of directory.
+ * rc < 0 -> error.
+ */
+ do {
+ struct mdd_object *child;
+ char *name = mdd_env_info(env)->mti_key;
+ int len;
+ int recsize;
+ int is_dir;
+ bool target_exist = false;
+
+ len = iops->key_size(env, it);
+ if (len == 0)
+ goto next;
+
+ result = iops->rec(env, it, (struct dt_rec *)ent,
+ LUDA_FID | LUDA_TYPE);
+ if (result == -ESTALE)
+ goto next;
+ if (result != 0) {
+ rc = result;
+ goto out;
+ }
+
+ fid_le_to_cpu(&ent->lde_fid, &ent->lde_fid);
+ recsize = le16_to_cpu(ent->lde_reclen);
+
+ /* Insert new fid with target name into target dir */
+ if ((ent->lde_namelen == 1 && ent->lde_name[0] == '.') ||
+ (ent->lde_namelen == 2 && ent->lde_name[0] == '.' &&
+ ent->lde_name[1] == '.'))
+ goto next;
+
+ child = mdd_object_find(env, mdd, &ent->lde_fid);
+ if (IS_ERR(child))
+ GOTO(out, rc = PTR_ERR(child));
+
+ is_dir = S_ISDIR(lu_object_attr(&child->mod_obj.mo_lu));
+
+ snprintf(name, ent->lde_namelen + 1, "%s", ent->lde_name);
+
+ /* Check whether the name has been inserted to the target */
+ if (dt_try_as_dir(env, dt_tobj)) {
+ struct lu_fid *fid = &mdd_env_info(env)->mti_fid2;
+
+ rc = dt_tobj->do_index_ops->dio_lookup(env, dt_tobj,
+ (struct dt_rec *)fid,
+ (struct dt_key *)name,
+ mdd_object_capa(env, mdd_tobj));
+ if (unlikely(rc == 0))
+ target_exist = true;
+ }
+
+ handle = mdd_trans_create(env, mdd);
+ if (IS_ERR(handle))
+ GOTO(out, rc = PTR_ERR(handle));
+
+ /* Note: this transaction is part of migration, and it is not
+ * the last step of migration, so we set th_local = 1 to avoid
+ * updating last rcvd for this transaction */
+ handle->th_local = 1;
+ if (likely(!target_exist)) {
+ rc = mdo_declare_index_insert(env, mdd_tobj,
+ &ent->lde_fid,
+ name, handle);
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ if (is_dir) {
+ rc = mdo_declare_ref_add(env, mdd_tobj, handle);
+ if (rc != 0)
+ GOTO(out_put, rc);
+ }
+ }
+
+ rc = mdo_declare_index_delete(env, mdd_sobj, name, handle);
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ if (is_dir) {
+ rc = mdo_declare_ref_del(env, mdd_sobj, handle);
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ /* Update .. for child */
+ rc = mdo_declare_index_delete(env, child, dotdot,
+ handle);
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ rc = mdo_declare_index_insert(env, child,
+ mdd_object_fid(mdd_tobj),
+ dotdot, handle);
+ if (rc != 0)
+ GOTO(out_put, rc);
+ }
+
+ rc = mdd_linkea_declare_update_child(env, mdd_tobj,
+ child, name,
+ strlen(name),
+ handle);
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc != 0) {
+ CERROR("%s: transaction start failed: rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name, rc);
+ GOTO(out_put, rc);
+ }
+
+ if (likely(!target_exist)) {
+ rc = __mdd_index_insert(env, mdd_tobj, &ent->lde_fid,
+ name, is_dir, handle,
+ mdd_object_capa(env, mdd_tobj));
+ if (rc != 0)
+ GOTO(out_put, rc);
- ldata->ml_leh->leh_reccount--;
- ldata->ml_leh->leh_len -= ldata->ml_reclen;
- memmove(ldata->ml_lee, (char *)ldata->ml_lee + ldata->ml_reclen,
- (char *)ldata->ml_leh + ldata->ml_leh->leh_len -
- (char *)ldata->ml_lee);
- CDEBUG(D_INODE, "Old link_ea name '%.*s' is removed\n",
- lname->ln_namelen, lname->ln_name);
+ if (is_dir) {
+ rc = mdo_ref_add(env, mdd_tobj, handle);
+ if (rc != 0)
+ GOTO(out_put, rc);
+ }
+ }
+
+ rc = __mdd_index_delete(env, mdd_sobj, name, is_dir, handle,
+ mdd_object_capa(env, mdd_sobj));
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ if (is_dir) {
+ rc = __mdd_index_delete_only(env, child, dotdot, handle,
+ mdd_object_capa(env, child));
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ rc = __mdd_index_insert_only(env, child,
+ mdd_object_fid(mdd_tobj),
+ dotdot, handle,
+ mdd_object_capa(env, child));
+ if (rc != 0)
+ GOTO(out_put, rc);
+ }
+
+ rc = mdd_linkea_update_child(env, mdd_tobj, child, name,
+ strlen(name), handle);
+
+out_put:
+ mdd_object_put(env, child);
+ mdd_trans_stop(env, mdd, rc, handle);
+ if (rc != 0)
+ GOTO(out, rc);
+next:
+ result = iops->next(env, it);
+ if (OBD_FAIL_CHECK(OBD_FAIL_MIGRATE_ENTRIES))
+ GOTO(out, rc = -EINTR);
+
+ if (result == -ESTALE)
+ goto next;
+ } while (result == 0);
+out:
+ iops->put(env, it);
+ iops->fini(env, it);
+out_ent:
+ OBD_FREE(ent, NAME_MAX + sizeof(*ent) + 1);
+ RETURN(rc);
}
-/**
- * Check if such a link exists in linkEA.
- *
- * \param mdd_obj object being handled
- * \param pfid parent fid the link to be found for
- * \param lname name in the parent's directory entry pointing to this object
- * \param ldata link data the search to be done on
- *
- * \retval 0 success
- * \retval -ENOENT link does not exist
- * \retval -ve on error
- */
-static int mdd_links_find(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- struct mdd_link_data *ldata,
- const struct lu_name *lname,
- const struct lu_fid *pfid)
-{
- struct lu_name *tmpname = &mdd_env_info(env)->mti_name2;
- struct lu_fid *tmpfid = &mdd_env_info(env)->mti_fid;
- int count;
-
- LASSERT(ldata->ml_leh != NULL);
-
- /* link #0 */
- ldata->ml_lee = (struct link_ea_entry *)(ldata->ml_leh + 1);
-
- for (count = 0; count < ldata->ml_leh->leh_reccount; count++) {
- mdd_lee_unpack(ldata->ml_lee, &ldata->ml_reclen,
- tmpname, tmpfid);
- if (tmpname->ln_namelen == lname->ln_namelen &&
- lu_fid_eq(tmpfid, pfid) &&
- (strncmp(tmpname->ln_name, lname->ln_name,
- tmpname->ln_namelen) == 0))
- break;
- ldata->ml_lee = (struct link_ea_entry *)((char *)ldata->ml_lee +
- ldata->ml_reclen);
- }
+static int mdd_declare_update_linkea(const struct lu_env *env,
+ struct mdd_object *mdd_pobj,
+ struct mdd_object *mdd_sobj,
+ struct mdd_object *mdd_tobj,
+ struct thandle *handle,
+ const struct lu_name *child_name)
+{
+ return mdd_update_linkea_internal(env, mdd_pobj, mdd_sobj, mdd_tobj,
+ child_name, handle, 1);
+}
- if (count == ldata->ml_leh->leh_reccount) {
- CDEBUG(D_INODE, "Old link_ea name '%.*s' not found\n",
- lname->ln_namelen, lname->ln_name);
- return -ENOENT;
- }
- return 0;
+static int mdd_update_linkea(const struct lu_env *env,
+ struct mdd_object *mdd_pobj,
+ struct mdd_object *mdd_sobj,
+ struct mdd_object *mdd_tobj,
+ struct thandle *handle,
+ const struct lu_name *child_name)
+{
+ return mdd_update_linkea_internal(env, mdd_pobj, mdd_sobj, mdd_tobj,
+ child_name, handle, 0);
}
-static int __mdd_links_add(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- struct mdd_link_data *ldata,
- const struct lu_name *lname,
- const struct lu_fid *pfid,
- int first, int check)
+static int mdd_declare_migrate_update_name(const struct lu_env *env,
+ struct mdd_object *mdd_pobj,
+ struct mdd_object *mdd_sobj,
+ struct mdd_object *mdd_tobj,
+ const struct lu_name *lname,
+ struct lu_attr *la,
+ struct lu_attr *parent_la,
+ struct thandle *handle)
{
- int rc;
+ struct lu_attr *la_flag = MDD_ENV_VAR(env, tattr);
+ int rc;
+
+ /* Revert IMMUTABLE flag */
+ la_flag->la_valid = LA_FLAGS;
+ la_flag->la_flags = la->la_flags & ~LUSTRE_IMMUTABLE_FL;
+ mdd_flags_xlate(mdd_sobj, la_flag->la_flags);
+ rc = mdo_declare_attr_set(env, mdd_sobj, la_flag, handle);
+ if (rc != 0)
+ return rc;
- if (ldata->ml_leh == NULL) {
- rc = first ? -ENODATA : mdd_links_read(env, mdd_obj, ldata);
- if (rc) {
- if (rc != -ENODATA)
- return rc;
- rc = mdd_links_new(env, ldata);
- if (rc)
- return rc;
- }
+ /* delete entry from source dir */
+ rc = mdo_declare_index_delete(env, mdd_pobj, lname->ln_name, handle);
+ if (rc != 0)
+ return rc;
+
+ rc = mdd_declare_update_linkea(env, mdd_pobj, mdd_sobj,
+ mdd_tobj, handle, lname);
+ if (rc != 0)
+ return rc;
+
+ if (S_ISREG(mdd_object_type(mdd_sobj))) {
+ rc = mdo_declare_xattr_del(env, mdd_sobj, XATTR_NAME_LOV,
+ handle);
+ if (rc != 0)
+ return rc;
}
- if (check) {
- rc = mdd_links_find(env, mdd_obj, ldata, lname, pfid);
- if (rc && rc != -ENOENT)
+ if (S_ISDIR(mdd_object_type(mdd_sobj))) {
+ rc = mdo_declare_ref_del(env, mdd_pobj, handle);
+ if (rc != 0)
return rc;
- if (rc == 0)
- return -EEXIST;
}
- return mdd_links_add_buf(env, ldata, lname, pfid);
-}
+ /* new name */
+ rc = mdo_declare_index_insert(env, mdd_pobj, mdo2fid(mdd_tobj),
+ lname->ln_name, handle);
+ if (rc != 0)
+ return rc;
-static int __mdd_links_del(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- struct mdd_link_data *ldata,
- const struct lu_name *lname,
- const struct lu_fid *pfid)
-{
- int rc;
+ if (S_ISDIR(mdd_object_type(mdd_sobj))) {
+ rc = mdo_declare_ref_add(env, mdd_pobj, handle);
+ if (rc != 0)
+ return rc;
+ }
- if (ldata->ml_leh == NULL) {
- rc = mdd_links_read(env, mdd_obj, ldata);
- if (rc)
+ /* delete old object */
+ rc = mdo_declare_ref_del(env, mdd_sobj, handle);
+ if (rc != 0)
+ return rc;
+
+ if (S_ISDIR(mdd_object_type(mdd_sobj))) {
+ /* delete old object */
+ rc = mdo_declare_ref_del(env, mdd_sobj, handle);
+ if (rc != 0)
+ return rc;
+ /* set nlink to 0 */
+ rc = mdo_declare_attr_set(env, mdd_sobj, la, handle);
+ if (rc != 0)
return rc;
}
- rc = mdd_links_find(env, mdd_obj, ldata, lname, pfid);
+ rc = mdd_declare_finish_unlink(env, mdd_sobj, handle);
if (rc)
return rc;
- mdd_links_del_buf(env, ldata, lname);
- return 0;
+ rc = mdo_declare_attr_set(env, mdd_pobj, parent_la, handle);
+
+ return rc;
}
-static int mdd_links_rename(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- const struct lu_fid *oldpfid,
- const struct lu_name *oldlname,
- const struct lu_fid *newpfid,
- const struct lu_name *newlname,
- struct thandle *handle,
- int first, int check)
+static int mdd_migrate_update_name(const struct lu_env *env,
+ struct mdd_object *mdd_pobj,
+ struct mdd_object *mdd_sobj,
+ struct mdd_object *mdd_tobj,
+ const struct lu_name *lname,
+ struct md_attr *ma)
{
- struct mdd_link_data ldata = { 0 };
- int updated = 0;
- int rc2 = 0;
- int rc = 0;
+ struct lu_attr *p_la = MDD_ENV_VAR(env, la_for_fix);
+ struct lu_attr *so_attr = MDD_ENV_VAR(env, cattr);
+ struct lu_attr *la_flag = MDD_ENV_VAR(env, tattr);
+ struct mdd_device *mdd = mdo2mdd(&mdd_sobj->mod_obj);
+ struct thandle *handle;
+ int is_dir = S_ISDIR(mdd_object_type(mdd_sobj));
+ const char *name = lname->ln_name;
+ int rc;
ENTRY;
- LASSERT(oldpfid != NULL || newpfid != NULL);
+ /* update time for parent */
+ LASSERT(ma->ma_attr.la_valid & LA_CTIME);
+ p_la->la_ctime = p_la->la_mtime = ma->ma_attr.la_ctime;
+ p_la->la_valid = LA_CTIME;
- if (mdd_obj->mod_flags & DEAD_OBJ)
- /* No more links, don't bother */
- RETURN(0);
+ rc = mdd_la_get(env, mdd_sobj, so_attr, mdd_object_capa(env, mdd_sobj));
+ if (rc != 0)
+ RETURN(rc);
- if (oldpfid != NULL) {
- rc = __mdd_links_del(env, mdd_obj, &ldata,
- oldlname, oldpfid);
- if (rc) {
- if ((check == 0) ||
- (rc != -ENODATA && rc != -ENOENT))
- GOTO(out, rc);
- /* No changes done. */
- rc = 0;
- } else {
- updated = 1;
- }
- }
+ handle = mdd_trans_create(env, mdd);
+ if (IS_ERR(handle))
+ RETURN(PTR_ERR(handle));
- /* If renaming, add the new record */
- if (newpfid != NULL) {
- /* even if the add fails, we still delete the out-of-date
- * old link */
- rc2 = __mdd_links_add(env, mdd_obj, &ldata,
- newlname, newpfid, first, check);
- if (rc2 == -EEXIST)
- rc2 = 0;
- else if (rc2 == 0)
- updated = 1;
+ rc = mdd_declare_migrate_update_name(env, mdd_pobj, mdd_sobj, mdd_tobj,
+ lname, so_attr, p_la, handle);
+ if (rc != 0) {
+ /* If the migration can not be fit in one transaction, just
+ * leave it in the original MDT */
+ if (rc == -E2BIG)
+ GOTO(stop_trans, rc = 0);
+ else
+ GOTO(stop_trans, rc);
}
- if (updated)
- rc = mdd_links_write(env, mdd_obj, &ldata, handle);
- EXIT;
-out:
- if (rc == 0)
- rc = rc2;
- if (rc) {
- int error = 1;
- if (rc == -EOVERFLOW || rc == - ENOENT)
- error = 0;
- if (oldpfid == NULL)
- CDEBUG(error ? D_ERROR : D_OTHER,
- "link_ea add '%.*s' failed %d "DFID"\n",
- newlname->ln_namelen, newlname->ln_name,
- rc, PFID(mdd_object_fid(mdd_obj)));
- else if (newpfid == NULL)
- CDEBUG(error ? D_ERROR : D_OTHER,
- "link_ea del '%.*s' failed %d "DFID"\n",
- oldlname->ln_namelen, oldlname->ln_name,
- rc, PFID(mdd_object_fid(mdd_obj)));
- else
- CDEBUG(error ? D_ERROR : D_OTHER,
- "link_ea rename '%.*s'->'%.*s' failed %d "
- DFID"\n",
- oldlname->ln_namelen, oldlname->ln_name,
- newlname->ln_namelen, newlname->ln_name,
- rc, PFID(mdd_object_fid(mdd_obj)));
+ CDEBUG(D_INFO, "%s: update "DFID"/"DFID" with %s:"DFID"\n",
+ mdd2obd_dev(mdd)->obd_name, PFID(mdd_object_fid(mdd_pobj)),
+ PFID(mdd_object_fid(mdd_sobj)), lname->ln_name,
+ PFID(mdd_object_fid(mdd_tobj)));
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+
+ /* Revert IMMUTABLE flag */
+ la_flag->la_valid = LA_FLAGS;
+ la_flag->la_flags = so_attr->la_flags & ~LUSTRE_IMMUTABLE_FL;
+ mdd_flags_xlate(mdd_sobj, la_flag->la_flags);
+ rc = mdo_attr_set(env, mdd_sobj, la_flag, handle,
+ mdd_object_capa(env, mdd_pobj));
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+
+ /* Remove source name from source directory */
+ rc = __mdd_index_delete(env, mdd_pobj, name, is_dir, handle,
+ mdd_object_capa(env, mdd_pobj));
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+
+ rc = mdd_update_linkea(env, mdd_pobj, mdd_sobj, mdd_tobj,
+ handle, lname);
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+
+ if (S_ISREG(so_attr->la_mode)) {
+ if (so_attr->la_nlink == 1) {
+ rc = mdo_xattr_del(env, mdd_sobj, XATTR_NAME_LOV,
+ handle,
+ mdd_object_capa(env, mdd_sobj));
+ if (rc != 0 && rc != -ENODATA)
+ GOTO(stop_trans, rc);
+ }
}
- if (ldata.ml_buf && ldata.ml_buf->lb_len > OBD_ALLOC_BIG)
- /* if we vmalloced a large buffer drop it */
- mdd_buf_put(ldata.ml_buf);
+ /* Insert new fid with target name into target dir */
+ rc = __mdd_index_insert(env, mdd_pobj, mdd_object_fid(mdd_tobj), name,
+ is_dir, handle, mdd_object_capa(env, mdd_pobj));
+ if (rc != 0)
+ GOTO(stop_trans, rc);
- return rc;
+ rc = mdd_links_add(env, mdd_tobj, mdo2fid(mdd_pobj), lname, handle,
+ NULL, 1);
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+
+ mdd_write_lock(env, mdd_sobj, MOR_SRC_CHILD);
+ mdo_ref_del(env, mdd_sobj, handle);
+ if (is_dir)
+ mdo_ref_del(env, mdd_sobj, handle);
+
+ /* Get the attr again after ref_del */
+ rc = mdd_la_get(env, mdd_sobj, so_attr,
+ mdd_object_capa(env, mdd_sobj));
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+ ma->ma_attr = *so_attr;
+ ma->ma_valid |= MA_INODE;
+ rc = mdd_finish_unlink(env, mdd_sobj, ma, mdd_pobj, lname, handle);
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+
+ rc = mdd_attr_set_internal(env, mdd_pobj, p_la, handle, 0);
+ if (rc != 0)
+ GOTO(stop_trans, rc);
+
+ mdd_write_unlock(env, mdd_sobj);
+
+stop_trans:
+ mdd_trans_stop(env, mdd, rc, handle);
+
+ RETURN(rc);
}
-static inline int mdd_links_add(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- const struct lu_fid *pfid,
- const struct lu_name *lname,
- struct thandle *handle, int first)
+/**
+ * Check whether we should migrate the file/dir
+ * return val
+ * < 0 permission check failed or other error.
+ * = 0 the file can be migrated.
+ * > 0 the file does not need to be migrated, mostly
+ * for multiple link file
+ **/
+static int mdd_migrate_sanity_check(const struct lu_env *env,
+ struct mdd_object *pobj,
+ const struct lu_attr *pattr,
+ struct mdd_object *sobj,
+ struct lu_attr *sattr)
{
- return mdd_links_rename(env, mdd_obj, NULL, NULL,
- pfid, lname, handle, first, 0);
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct linkea_data *ldata = &info->mti_link_data;
+ int mgr_easize;
+ struct lu_buf *mgr_buf;
+ int count;
+ int rc;
+
+ ENTRY;
+
+ mgr_easize = lmv_mds_md_size(2, LMV_MAGIC_V1);
+ mgr_buf = lu_buf_check_and_alloc(&info->mti_big_buf, mgr_easize);
+ if (mgr_buf->lb_buf == NULL)
+ RETURN(-ENOMEM);
+
+ rc = mdo_xattr_get(env, sobj, mgr_buf, XATTR_NAME_LMV,
+ mdd_object_capa(env, sobj));
+ if (rc > 0) {
+ union lmv_mds_md *lmm = mgr_buf->lb_buf;
+
+ /* If the object has migrateEA, it means IMMUTE flag
+ * is being set by previous migration process, so it
+ * needs to override the IMMUTE flag, otherwise the
+ * following sanity check will fail */
+ if (le32_to_cpu(lmm->lmv_md_v1.lmv_hash_type) &
+ LMV_HASH_FLAG_MIGRATION) {
+ struct mdd_device *mdd = mdo2mdd(&sobj->mod_obj);
+
+ sattr->la_flags &= ~LUSTRE_IMMUTABLE_FL;
+ sobj->mod_flags &= ~IMMUTE_OBJ;
+ CDEBUG(D_HA, "%s: "DFID" override IMMUTE FLAG\n",
+ mdd2obd_dev(mdd)->obd_name,
+ PFID(mdd_object_fid(sobj)));
+ }
+ }
+
+ rc = mdd_rename_sanity_check(env, pobj, pattr, pobj, pattr,
+ sobj, sattr, NULL, NULL);
+ if (rc != 0)
+ RETURN(rc);
+
+ /* Then it will check if the file should be migrated. If the file
+ * has mulitple links, we only need migrate the file if all of its
+ * entries has been migrated to the remote MDT */
+ if (!S_ISREG(sattr->la_mode) || sattr->la_nlink < 2)
+ RETURN(0);
+
+ rc = mdd_links_read(env, sobj, ldata);
+ if (rc != 0) {
+ /* For multiple links files, if there are no linkEA data at all,
+ * means the file might be created before linkEA is enabled, and
+ * all all of its links should not be migrated yet, otherwise
+ * it should have some linkEA there */
+ if (rc == -ENOENT || rc == -ENODATA)
+ RETURN(1);
+ RETURN(rc);
+ }
+
+ /* If it is mulitple links file, we need update the name entry for
+ * all parent */
+ LASSERT(ldata->ld_leh != NULL);
+ ldata->ld_lee = (struct link_ea_entry *)(ldata->ld_leh + 1);
+ for (count = 0; count < ldata->ld_leh->leh_reccount; count++) {
+ struct mdd_device *mdd = mdo2mdd(&sobj->mod_obj);
+ struct mdd_object *lpobj;
+ struct lu_name lname;
+ struct lu_fid fid;
+
+ linkea_entry_unpack(ldata->ld_lee, &ldata->ld_reclen,
+ &lname, &fid);
+ ldata->ld_lee = (struct link_ea_entry *)((char *)ldata->ld_lee +
+ ldata->ld_reclen);
+ lpobj = mdd_object_find(env, mdd, &fid);
+ if (IS_ERR(lpobj)) {
+ CWARN("%s: cannot find obj "DFID": rc = %ld\n",
+ mdd2obd_dev(mdd)->obd_name, PFID(&fid),
+ PTR_ERR(lpobj));
+ continue;
+ }
+
+ if (!mdd_object_exists(lpobj) || mdd_object_remote(lpobj)) {
+ CDEBUG(D_INFO, DFID"%.*s: is on remote MDT.\n",
+ PFID(&fid), lname.ln_namelen, lname.ln_name);
+ mdd_object_put(env, lpobj);
+ continue;
+ }
+
+ CDEBUG(D_INFO, DFID"still has local entry %.*s "DFID"\n",
+ PFID(mdd_object_fid(sobj)), lname.ln_namelen,
+ lname.ln_name, PFID(&fid));
+ mdd_object_put(env, lpobj);
+ rc = 1;
+ break;
+ }
+
+ RETURN(rc);
}
-static inline int mdd_links_del(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- const struct lu_fid *pfid,
- const struct lu_name *lname,
- struct thandle *handle)
+static int mdd_migrate(const struct lu_env *env, struct md_object *pobj,
+ struct md_object *sobj, const struct lu_name *lname,
+ struct md_object *tobj, struct md_attr *ma)
{
- return mdd_links_rename(env, mdd_obj, pfid, lname,
- NULL, NULL, handle, 0, 0);
+ struct mdd_object *mdd_pobj = md2mdd_obj(pobj);
+ struct mdd_device *mdd = mdo2mdd(pobj);
+ struct mdd_object *mdd_sobj = md2mdd_obj(sobj);
+ struct mdd_object *mdd_tobj = NULL;
+ struct lu_attr *so_attr = MDD_ENV_VAR(env, cattr);
+ struct lu_attr *pattr = MDD_ENV_VAR(env, pattr);
+ int rc;
+
+ ENTRY;
+ /* If the file will being migrated, it will check whether
+ * the file is being opened by someone else right now */
+ mdd_read_lock(env, mdd_sobj, MOR_SRC_CHILD);
+ if (mdd_sobj->mod_count >= 1) {
+ CERROR("%s: "DFID"%s is already opened count %d: rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name,
+ PFID(mdd_object_fid(mdd_sobj)), lname->ln_name,
+ mdd_sobj->mod_count, -EBUSY);
+ mdd_read_unlock(env, mdd_sobj);
+ GOTO(put, rc = -EBUSY);
+ }
+ mdd_read_unlock(env, mdd_sobj);
+
+ rc = mdd_la_get(env, mdd_sobj, so_attr, mdd_object_capa(env, mdd_sobj));
+ if (rc != 0)
+ GOTO(put, rc);
+
+ rc = mdd_la_get(env, mdd_pobj, pattr, BYPASS_CAPA);
+ if (rc != 0)
+ GOTO(put, rc);
+
+ rc = mdd_migrate_sanity_check(env, mdd_pobj, pattr, mdd_sobj, so_attr);
+ if (rc != 0) {
+ if (rc > 0)
+ rc = 0;
+ GOTO(put, rc);
+ }
+
+ /* Sigh, it is impossible to finish all of migration in a single
+ * transaction, for example migrating big directory entries to the
+ * new MDT, it needs insert all of name entries of children in the
+ * new directory.
+ *
+ * So migration will be done in multiple steps and transactions.
+ *
+ * 1. create an orphan object on the remote MDT in one transaction.
+ * 2. migrate extend attributes to the new target file/directory.
+ * 3. For directory, migrate the entries to the new MDT and update
+ * linkEA of each children. Because we can not migrate all entries
+ * in a single transaction, so the migrating directory will become
+ * a striped directory during migration, so once the process is
+ * interrupted, the directory is still accessible. (During lookup,
+ * client will locate the name by searching both original and target
+ * object).
+ * 4. Finally, update the name/FID to point to the new file/directory
+ * in a separate transaction.
+ */
+
+ /* step 1: Check whether the orphan object has been created, and create
+ * orphan object on the remote MDT if needed */
+ mdd_tobj = md2mdd_obj(tobj);
+ if (!mdd_object_exists(mdd_tobj)) {
+ rc = mdd_migrate_create(env, mdd_pobj, mdd_sobj, mdd_tobj,
+ so_attr);
+ if (rc != 0)
+ GOTO(put, rc);
+ }
+
+ /* step 2: migrate xattr */
+ rc = mdd_migrate_xattrs(env, mdd_sobj, mdd_tobj);
+ if (rc != 0)
+ GOTO(put, rc);
+
+ /* step 3: migrate name entries to the orphan object */
+ if (S_ISDIR(lu_object_attr(&mdd_sobj->mod_obj.mo_lu))) {
+ rc = mdd_migrate_entries(env, mdd_sobj, mdd_tobj);
+ if (rc != 0)
+ GOTO(put, rc);
+ if (unlikely(OBD_FAIL_CHECK_RESET(OBD_FAIL_MIGRATE_NET_REP,
+ OBD_FAIL_MDS_REINT_NET_REP)))
+ GOTO(put, rc = 0);
+ }
+
+ /* step 4: update name entry to the new object */
+ rc = mdd_migrate_update_name(env, mdd_pobj, mdd_sobj, mdd_tobj, lname,
+ ma);
+ if (rc != 0)
+ GOTO(put, rc);
+put:
+ RETURN(rc);
}
const struct md_dir_operations mdd_dir_ops = {
- .mdo_is_subdir = mdd_is_subdir,
- .mdo_lookup = mdd_lookup,
- .mdo_create = mdd_create,
- .mdo_rename = mdd_rename,
- .mdo_link = mdd_link,
- .mdo_unlink = mdd_unlink,
- .mdo_create_data = mdd_create_data,
+ .mdo_is_subdir = mdd_is_subdir,
+ .mdo_lookup = mdd_lookup,
+ .mdo_create = mdd_create,
+ .mdo_rename = mdd_rename,
+ .mdo_link = mdd_link,
+ .mdo_unlink = mdd_unlink,
+ .mdo_create_data = mdd_create_data,
+ .mdo_migrate = mdd_migrate,
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff