*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*
* lustre/mdd/mdd_dir.c
*
static int
__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)
+ struct lu_fid *fid, unsigned int may_mask)
{
const char *name = lname->ln_name;
const struct dt_key *key = (const struct dt_key *)name;
PFID(mdd_object_fid(mdd_obj)));
}
- rc = mdd_permission_internal_locked(env, mdd_obj, pattr, mask,
+ rc = mdd_permission_internal_locked(env, mdd_obj, pattr, may_mask,
DT_TGT_PARENT);
if (rc)
RETURN(rc);
}
/** Read the link EA into a temp buffer.
- * Uses the mdd_thread_info::mti_big_buf since it is generally large.
+ * Uses the mdd_thread_info::mti_link_buf since it is generally large.
* A pointer to the buffer is stored in \a ldata::ld_buf.
*
* \retval 0 or error
return linkea_init(ldata);
}
-static int mdd_links_read(const struct lu_env *env,
- struct mdd_object *mdd_obj,
- struct linkea_data *ldata)
+int mdd_links_read(const struct lu_env *env,
+ struct mdd_object *mdd_obj,
+ struct linkea_data *ldata)
{
int rc;
* -ve other error
*
*/
-static int mdd_dir_is_empty(const struct lu_env *env,
- struct mdd_object *dir)
+int mdd_dir_is_empty(const struct lu_env *env, struct mdd_object *dir)
{
struct dt_it *it;
struct dt_object *obj;
if (cattr->la_uid == uc->uc_fsuid)
return 0;
- return !md_capable(uc, CFS_CAP_FOWNER);
+ return !md_capable(uc, CAP_FOWNER);
}
static int mdd_may_delete_entry(const struct lu_env *env,
struct llog_changelog_rec *rec;
mdd = lu2mdd_dev(loghandle->lgh_ctxt->loc_obd->obd_lu_dev);
- rec = container_of0(r, struct llog_changelog_rec, cr_hdr);
+ rec = container_of(r, struct llog_changelog_rec, cr_hdr);
spin_lock(&mdd->mdd_cl.mc_lock);
rec->cr.cr_index = mdd->mdd_cl.mc_index + 1;
/** 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)
+ * \retval ptr to \a lu_buf (always \a mti_link_buf)
*/
struct lu_buf *mdd_links_get(const struct lu_env *env,
struct mdd_object *mdd_obj)
/* Enough for only unlink the entry */
if (unlikely(mdd_cobj == NULL))
- GOTO(stop, rc);
+ GOTO(cleanup, rc);
if (cattr->la_nlink > 0 || mdd_cobj->mod_count > 0) {
/* update ctime of an unlinked file only if it is still
if (rc)
GOTO(stop, rc);
- rc = mdd_changelog_data_store(env, mdd, CL_LAYOUT, 0, son, handle);
+ rc = mdd_changelog_data_store(env, mdd, CL_LAYOUT, 0, son, handle,
+ NULL);
stop:
rc = mdd_trans_stop(env, mdd, rc, handle);
!lustre_in_group_p(uc,
(cattr->la_valid & LA_GID) ?
cattr->la_gid : pattr->la_gid) &&
- !md_capable(uc, CFS_CAP_FSETID)) {
+ !md_capable(uc, CAP_FSETID)) {
cattr->la_mode &= ~S_ISGID;
cattr->la_valid |= LA_MODE;
}
const struct lu_buf *buf;
int rc;
+#ifdef CONFIG_LUSTRE_FS_POSIX_ACL
+ /* ldiskfs OSD needs this information for credit allocation */
+ if (def_acl_buf)
+ hint->dah_acl_len = def_acl_buf->lb_len;
+#endif
rc = mdd_declare_create_object_internal(env, p, c, attr, handle, spec,
hint);
if (rc)
if (rc < 0)
GOTO(out, rc);
}
+
+ if (spec->sp_cr_file_encctx != NULL) {
+ buf = mdd_buf_get_const(env, spec->sp_cr_file_encctx,
+ spec->sp_cr_file_encctx_size);
+ rc = mdo_declare_xattr_set(env, c, buf,
+ LL_XATTR_NAME_ENCRYPTION_CONTEXT, 0,
+ handle);
+ if (rc < 0)
+ GOTO(out, rc);
+ }
out:
return rc;
}
struct lu_buf *acl_buf)
{
int rc;
+
ENTRY;
if (S_ISLNK(la->la_mode)) {
XATTR_NAME_ACL_DEFAULT);
mdd_read_unlock(env, pobj);
if (rc > 0) {
+ /* ACL buffer size is not enough, need realloc */
+ if (rc > acl_buf->lb_len)
+ RETURN(-ERANGE);
+
/* 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);
GOTO(err_initlized, rc);
}
+ if (spec->sp_cr_file_encctx != NULL) {
+ buf = mdd_buf_get_const(env, spec->sp_cr_file_encctx,
+ spec->sp_cr_file_encctx_size);
+ rc = mdo_xattr_set(env, son, buf,
+ LL_XATTR_NAME_ENCRYPTION_CONTEXT, 0,
+ handle);
+ if (rc < 0)
+ GOTO(err_initlized, rc);
+ }
+
err_initlized:
if (unlikely(rc != 0)) {
int rc2;
const struct lu_name *lname, struct md_object *child,
struct md_op_spec *spec, struct md_attr *ma)
{
- struct mdd_thread_info *info = mdd_env_info(env);
- struct lu_attr *la = &info->mti_la_for_fix;
- struct mdd_object *mdd_pobj = md2mdd_obj(pobj);
- struct mdd_object *son = md2mdd_obj(child);
- struct mdd_device *mdd = mdo2mdd(pobj);
- struct lu_attr *attr = &ma->ma_attr;
- struct thandle *handle;
- struct lu_attr *pattr = &info->mti_pattr;
- struct lu_buf acl_buf;
- struct lu_buf def_acl_buf;
- struct lu_buf hsm_buf;
- struct linkea_data *ldata = &info->mti_link_data;
- const char *name = lname->ln_name;
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct lu_attr *la = &info->mti_la_for_fix;
+ struct mdd_object *mdd_pobj = md2mdd_obj(pobj);
+ struct mdd_object *son = md2mdd_obj(child);
+ struct mdd_device *mdd = mdo2mdd(pobj);
+ struct lu_attr *attr = &ma->ma_attr;
+ struct thandle *handle;
+ struct lu_attr *pattr = &info->mti_pattr;
+ struct lu_buf acl_buf;
+ struct lu_buf def_acl_buf;
+ struct lu_buf hsm_buf;
+ struct linkea_data *ldata = &info->mti_link_data;
+ const char *name = lname->ln_name;
struct dt_allocation_hint *hint = &mdd_env_info(env)->mti_hint;
- int rc;
- int rc2;
+ int acl_size = LUSTRE_POSIX_ACL_MAX_SIZE_OLD;
+ int rc, rc2;
+
ENTRY;
rc = mdd_la_get(env, mdd_pobj, pattr);
if (IS_ERR(handle))
GOTO(out_free, rc = PTR_ERR(handle));
- lu_buf_check_and_alloc(&info->mti_xattr_buf,
- min_t(unsigned int, mdd->mdd_dt_conf.ddp_max_ea_size,
- XATTR_SIZE_MAX));
- acl_buf = info->mti_xattr_buf;
- def_acl_buf.lb_buf = info->mti_key;
- def_acl_buf.lb_len = sizeof(info->mti_key);
+use_bigger_buffer:
+ acl_buf = *lu_buf_check_and_alloc(&info->mti_xattr_buf, acl_size);
+ if (!acl_buf.lb_buf)
+ GOTO(out_stop, rc = -ENOMEM);
+ /* mti_big_buf is also used down below in mdd_changelog_ns_store(),
+ * but def_acl_buf is finished with it before then
+ */
+ def_acl_buf = *lu_buf_check_and_alloc(&info->mti_big_buf, acl_size);
+ if (!def_acl_buf.lb_buf)
+ GOTO(out_stop, rc = -ENOMEM);
+
rc = mdd_acl_init(env, mdd_pobj, attr, &def_acl_buf, &acl_buf);
+ if (unlikely(rc == -ERANGE &&
+ acl_size == LUSTRE_POSIX_ACL_MAX_SIZE_OLD)) {
+ /* use maximum-sized xattr buffer for too-big default ACL */
+ acl_size = min_t(unsigned int, mdd->mdd_dt_conf.ddp_max_ea_size,
+ XATTR_SIZE_MAX);
+ goto use_bigger_buffer;
+ }
if (rc < 0)
GOTO(out_stop, rc);
return rc;
}
-/*
- * Get locks on parents in proper order
- * RETURN: < 0 - error, rename_order if successful
- */
-enum rename_order {
- MDD_RN_SAME,
- MDD_RN_SRCTGT,
- MDD_RN_TGTSRC
-};
-
-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*/
- int rc;
-
- ENTRY;
- if (src_pobj == tgt_pobj)
- RETURN(MDD_RN_SAME);
-
- /* compared the parent child relationship of src_p & tgt_p */
- if (lu_fid_eq(&mdd->mdd_root_fid, mdd_object_fid(src_pobj))) {
- rc = MDD_RN_SRCTGT;
- } else if (lu_fid_eq(&mdd->mdd_root_fid, mdd_object_fid(tgt_pobj))) {
- rc = MDD_RN_TGTSRC;
- } else {
- rc = mdd_is_parent(env, mdd, src_pobj, pattr,
- mdd_object_fid(tgt_pobj));
- if (rc == -EREMOTE)
- rc = 0;
-
- if (rc == 1)
- rc = MDD_RN_TGTSRC;
- else if (rc == 0)
- rc = MDD_RN_SRCTGT;
- }
-
- RETURN(rc);
-}
-
/* 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,
return rc;
}
+static int mdd_migrate_object(const struct lu_env *env,
+ struct mdd_object *spobj,
+ struct mdd_object *tpobj,
+ struct mdd_object *sobj,
+ struct mdd_object *tobj,
+ const struct lu_name *sname,
+ const struct lu_name *tname,
+ struct md_op_spec *spec,
+ struct md_attr *ma);
+
/* src object can be remote that is why we use only fid and type of object */
static int mdd_rename(const struct lu_env *env,
struct md_object *src_pobj, struct md_object *tgt_pobj,
if (rc)
GOTO(out_pending, rc);
+ /* if rename is cross MDTs, migrate symlink if it doesn't have other
+ * hard links, and target doesn't exist.
+ */
+ if (mdd_object_remote(mdd_sobj) && S_ISLNK(cattr->la_mode) &&
+ cattr->la_nlink == 1 && !tobj) {
+ struct md_op_spec *spec = &mdd_env_info(env)->mti_spec;
+ struct lu_device *ld = &mdd->mdd_md_dev.md_lu_dev;
+ struct lu_fid tfid;
+
+ rc = ld->ld_ops->ldo_fid_alloc(env, ld, &tfid, &tgt_pobj->mo_lu,
+ NULL);
+ if (rc < 0)
+ GOTO(out_pending, rc);
+
+ mdd_tobj = mdd_object_find(env, mdd, &tfid);
+ if (IS_ERR(mdd_tobj))
+ GOTO(out_pending, rc = PTR_ERR(mdd_tobj));
+
+ memset(spec, 0, sizeof(*spec));
+ rc = mdd_migrate_object(env, mdd_spobj, mdd_tpobj, mdd_sobj,
+ mdd_tobj, lsname, ltname, spec, ma);
+ mdd_object_put(env, mdd_tobj);
+ GOTO(out_pending, rc);
+ }
+
rc = mdd_la_get(env, mdd_spobj, pattr);
if (rc)
GOTO(out_pending, rc);
if (rc < 0)
GOTO(out_pending, rc);
- /* FIXME: Should consider tobj and sobj too in rename_lock. */
- rc = mdd_rename_order(env, mdd, mdd_spobj, pattr, mdd_tpobj);
- if (rc < 0)
- GOTO(out_pending, rc);
-
handle = mdd_trans_create(env, mdd);
if (IS_ERR(handle))
GOTO(out_pending, rc = PTR_ERR(handle));
struct mdd_object *spobj,
struct mdd_object *tpobj,
struct mdd_object *sobj,
- const struct lu_name *lname,
+ const struct lu_name *sname,
+ const struct lu_name *tname,
const struct lu_attr *attr,
struct linkea_data *ldata)
{
ENTRY;
memset(ldata, 0, sizeof(*ldata));
- rc = mdd_linkea_prepare(env, sobj, mdd_object_fid(spobj), lname,
- mdd_object_fid(tpobj), lname, 1, 0, ldata);
+ rc = mdd_linkea_prepare(env, sobj, mdd_object_fid(spobj), sname,
+ mdd_object_fid(tpobj), tname, 1, 0, ldata);
if (rc)
RETURN(rc);
if (rc)
RETURN(rc);
- rc = mdd_iterate_linkea(env, sobj, NULL, lname, mdd_object_fid(tpobj),
+ rc = mdd_iterate_linkea(env, sobj, NULL, tname, mdd_object_fid(tpobj),
ldata, &source_mdt_index, NULL,
mdd_is_link_on_source_mdt);
RETURN(rc);
struct mdd_object *spobj,
struct mdd_object *tpobj,
struct mdd_object *obj,
- const struct lu_name *lname,
+ const struct lu_name *sname,
+ const struct lu_name *tname,
struct lu_attr *attr,
struct lu_attr *spattr,
struct lu_attr *tpattr,
struct lu_attr *la = &info->mti_la_for_fix;
int rc;
- rc = mdo_declare_index_delete(env, spobj, lname->ln_name, handle);
+ rc = mdo_declare_index_delete(env, spobj, sname->ln_name, handle);
if (rc)
return rc;
rc = mdo_declare_index_insert(env, tpobj, mdd_object_fid(obj),
attr->la_mode & S_IFMT,
- lname->ln_name, handle);
+ tname->ln_name, handle);
if (rc)
return rc;
struct mdd_object *tpobj,
struct mdd_object *sobj,
struct mdd_object *tobj,
- const struct lu_name *lname,
+ const struct lu_name *sname,
+ const struct lu_name *tname,
struct lu_attr *spattr,
struct lu_attr *tpattr,
struct lu_attr *attr,
mdd_object_make_hint(env, tpobj, tobj, attr, spec, hint);
rc = mdd_declare_create(env, mdo2mdd(&tpobj->mod_obj), tpobj, tobj,
- lname, attr, handle, spec, ldata, NULL, NULL,
+ tname, attr, handle, spec, ldata, NULL, NULL,
NULL, hint);
if (rc)
return rc;
}
if (!S_ISDIR(attr->la_mode)) {
- rc = mdd_iterate_linkea(env, sobj, tobj, lname,
+ rc = mdd_iterate_linkea(env, sobj, tobj, tname,
mdd_object_fid(tpobj), ldata, NULL,
handle, mdd_declare_update_link);
if (rc)
return rc;
}
- rc = mdd_declare_migrate_update(env, spobj, tpobj, tobj, lname, attr,
- spattr, tpattr, ldata, ma, handle);
+ rc = mdd_declare_migrate_update(env, spobj, tpobj, tobj, sname, tname,
+ attr, spattr, tpattr, ldata, ma,
+ handle);
return rc;
}
struct mdd_object *spobj,
struct mdd_object *tpobj,
struct mdd_object *obj,
- const struct lu_name *lname,
+ const struct lu_name *sname,
+ const struct lu_name *tname,
struct lu_attr *attr,
struct lu_attr *spattr,
struct lu_attr *tpattr,
ENTRY;
- CDEBUG(D_INFO, "update "DFID"/%s to "DFID"/"DFID"\n",
- PFID(mdd_object_fid(spobj)), lname->ln_name,
- PFID(mdd_object_fid(tpobj)), PFID(mdd_object_fid(obj)));
+ CDEBUG(D_INFO, "update "DFID" from "DFID"/%s to "DFID"/%s\n",
+ PFID(mdd_object_fid(obj)), PFID(mdd_object_fid(spobj)),
+ sname->ln_name, PFID(mdd_object_fid(tpobj)), tname->ln_name);
- rc = __mdd_index_delete(env, spobj, lname->ln_name,
+ rc = __mdd_index_delete(env, spobj, sname->ln_name,
S_ISDIR(attr->la_mode), handle);
if (rc)
RETURN(rc);
rc = __mdd_index_insert(env, tpobj, mdd_object_fid(obj),
attr->la_mode & S_IFMT,
- lname->ln_name, handle);
+ tname->ln_name, handle);
if (rc)
RETURN(rc);
struct mdd_object *tpobj,
struct mdd_object *sobj,
struct mdd_object *tobj,
- const struct lu_name *lname,
+ const struct lu_name *sname,
+ const struct lu_name *tname,
struct lu_attr *spattr,
struct lu_attr *tpattr,
struct lu_attr *attr,
/* update links FID */
if (!S_ISDIR(attr->la_mode)) {
- rc = mdd_iterate_linkea(env, sobj, tobj, lname,
+ rc = mdd_iterate_linkea(env, sobj, tobj, tname,
mdd_object_fid(tpobj), ldata,
NULL, handle, mdd_update_link);
if (rc)
RETURN(rc);
}
- rc = mdd_migrate_update(env, spobj, tpobj, tobj, lname, attr,
+ rc = mdd_migrate_update(env, spobj, tpobj, tobj, sname, tname, attr,
spattr, tpattr, ldata, ma, handle);
RETURN(rc);
}
+/* NB: if user issued different migrate command, we can't adjust it silently
+ * here, because this command will decide target MDT in subdir migration in
+ * LMV.
+ */
static int mdd_migrate_cmd_check(struct mdd_device *mdd,
const struct lmv_mds_md_v1 *lmv,
const struct lmv_user_md_v1 *lum,
{
__u32 lum_stripe_count = lum->lum_stripe_count;
__u32 lmv_hash_type = lmv->lmv_hash_type;
- char *mdt_hash_name[] = { "none",
- LMV_HASH_NAME_ALL_CHARS,
- LMV_HASH_NAME_FNV_1A_64,
- LMV_HASH_NAME_CRUSH,
- };
if (!lmv_is_sane(lmv))
return -EBADF;
}
/**
- * Migrate directory or file.
+ * Internal function to migrate directory or file between MDTs.
*
* migrate source to target in following steps:
* 1. create target, append source stripes after target's if it's directory,
* update file linkea, and destroy source if it's not needed any more.
*
* \param[in] env execution environment
- * \param[in] md_pobj parent master object
- * \param[in] md_sobj source object
- * \param[in] lname file name
- * \param[in] md_tobj target object
+ * \param[in] spobj source parent object
+ * \param[in] tpobj target parent object
+ * \param[in] sobj source object
+ * \param[in] tobj target object
+ * \param[in] sname source file name
+ * \param[in] tname target file name
* \param[in] spec target creation spec
* \param[in] ma used to update \a pobj mtime and ctime
*
* \retval 0 on success
* \retval -errno on failure
*/
-static int mdd_migrate(const struct lu_env *env, struct md_object *md_pobj,
- struct md_object *md_sobj, const struct lu_name *lname,
- struct md_object *md_tobj, struct md_op_spec *spec,
- struct md_attr *ma)
+static int mdd_migrate_object(const struct lu_env *env,
+ struct mdd_object *spobj,
+ struct mdd_object *tpobj,
+ struct mdd_object *sobj,
+ struct mdd_object *tobj,
+ const struct lu_name *sname,
+ const struct lu_name *tname,
+ struct md_op_spec *spec,
+ struct md_attr *ma)
{
- struct mdd_device *mdd = mdo2mdd(md_pobj);
struct mdd_thread_info *info = mdd_env_info(env);
- struct mdd_object *pobj = md2mdd_obj(md_pobj);
- struct mdd_object *sobj = md2mdd_obj(md_sobj);
- struct mdd_object *tobj = md2mdd_obj(md_tobj);
- struct mdd_object *spobj = NULL;
- struct mdd_object *tpobj = NULL;
+ struct mdd_device *mdd = mdo2mdd(&spobj->mod_obj);
struct lu_attr *spattr = &info->mti_pattr;
struct lu_attr *tpattr = &info->mti_tpattr;
struct lu_attr *attr = &info->mti_cattr;
struct linkea_data *ldata = &info->mti_link_data;
struct dt_allocation_hint *hint = &info->mti_hint;
- struct lu_fid *fid = &info->mti_fid2;
- struct lu_buf pbuf = { NULL };
struct lu_buf sbuf = { NULL };
struct lmv_mds_md_v1 *lmv;
struct thandle *handle;
- bool nsonly = false;
int rc;
ENTRY;
if (rc)
RETURN(rc);
- /* locate source and target stripe on pobj, which are the real parent */
- rc = mdd_stripe_get(env, pobj, &pbuf, XATTR_NAME_LMV);
- if (rc < 0 && rc != -ENODATA)
- RETURN(rc);
-
- lmv = pbuf.lb_buf;
- if (lmv) {
- __u32 hash_type = le32_to_cpu(lmv->lmv_hash_type);
- int index;
-
- /* locate target parent stripe */
- /* fail check here to make sure top dir migration succeed. */
- if ((hash_type & LMV_HASH_FLAG_MIGRATION) &&
- OBD_FAIL_CHECK_RESET(OBD_FAIL_MIGRATE_ENTRIES, 0))
- GOTO(out, rc = -EIO);
-
- index = lmv_name_to_stripe_index(lmv, lname->ln_name,
- lname->ln_namelen);
- if (index < 0)
- GOTO(out, rc = index);
-
- fid_le_to_cpu(fid, &lmv->lmv_stripe_fids[index]);
- tpobj = mdd_object_find(env, mdd, fid);
- if (IS_ERR(tpobj))
- GOTO(out, rc = PTR_ERR(tpobj));
-
- /* locate source parent stripe */
- if (hash_type & LMV_HASH_FLAG_LAYOUT_CHANGE) {
- index = lmv_name_to_stripe_index_old(lmv,
- lname->ln_name,
- lname->ln_namelen);
- if (index < 0)
- GOTO(out, rc = index);
-
- fid_le_to_cpu(fid, &lmv->lmv_stripe_fids[index]);
- spobj = mdd_object_find(env, mdd, fid);
- if (IS_ERR(spobj))
- GOTO(out, rc = PTR_ERR(spobj));
- } else {
- spobj = tpobj;
- mdd_object_get(spobj);
- }
- } else {
- tpobj = pobj;
- spobj = pobj;
- mdd_object_get(tpobj);
- mdd_object_get(spobj);
- }
-
rc = mdd_la_get(env, spobj, spattr);
if (rc)
- GOTO(out, rc);
+ RETURN(rc);
rc = mdd_la_get(env, tpobj, tpattr);
if (rc)
- GOTO(out, rc);
+ RETURN(rc);
- if (S_ISDIR(attr->la_mode)) {
+ if (S_ISDIR(attr->la_mode) && !spec->sp_migrate_nsonly) {
struct lmv_user_md_v1 *lum = spec->u.sp_ea.eadata;
LASSERT(lum);
GOTO(out, rc);
lmv = sbuf.lb_buf;
- if (lmv &&
- (le32_to_cpu(lmv->lmv_hash_type) &
- LMV_HASH_FLAG_MIGRATION)) {
- rc = mdd_migrate_cmd_check(mdd, lmv, lum, lname);
- GOTO(out, rc);
+ if (lmv) {
+ if (!lmv_is_sane(lmv))
+ GOTO(out, rc = -EBADF);
+ if (lmv_is_migrating(lmv)) {
+ rc = mdd_migrate_cmd_check(mdd, lmv, lum,
+ sname);
+ GOTO(out, rc);
+ }
}
- } else {
+ } else if (!S_ISDIR(attr->la_mode)) {
if (spobj == tpobj)
GOTO(out, rc = -EALREADY);
/* update namespace only if @sobj is on MDT where @tpobj is. */
- if (!mdd_object_remote(tpobj))
- nsonly = true;
+ if (!mdd_object_remote(tpobj) && !mdd_object_remote(sobj))
+ spec->sp_migrate_nsonly = true;
if (S_ISLNK(attr->la_mode)) {
lu_buf_check_and_alloc(&sbuf, attr->la_size + 1);
}
/* linkea needs update upon FID or parent stripe change */
- rc = mdd_migrate_linkea_prepare(env, mdd, spobj, tpobj, sobj, lname,
- attr, ldata);
+ rc = mdd_migrate_linkea_prepare(env, mdd, spobj, tpobj, sobj, sname,
+ tname, attr, ldata);
if (rc > 0)
/* update namespace only if @sobj has link on its MDT. */
- nsonly = true;
+ spec->sp_migrate_nsonly = true;
else if (rc < 0)
GOTO(out, rc);
if (IS_ERR(handle))
GOTO(out, rc = PTR_ERR(handle));
- if (nsonly)
- rc = mdd_declare_migrate_update(env, spobj, tpobj, sobj, lname,
- attr, spattr, tpattr, ldata, ma,
- handle);
+ if (spec->sp_migrate_nsonly)
+ rc = mdd_declare_migrate_update(env, spobj, tpobj, sobj, sname,
+ tname, attr, spattr, tpattr,
+ ldata, ma, handle);
else
rc = mdd_declare_migrate_create(env, spobj, tpobj, sobj, tobj,
- lname, spattr, tpattr, attr,
- &sbuf, ldata, ma, spec, hint,
- handle);
+ sname, tname, spattr, tpattr,
+ attr, &sbuf, ldata, ma, spec,
+ hint, handle);
if (rc)
- GOTO(stop_trans, rc);
+ GOTO(stop, rc);
- rc = mdd_declare_changelog_store(env, mdd, CL_MIGRATE, lname, NULL,
+ rc = mdd_declare_changelog_store(env, mdd, CL_MIGRATE, tname, sname,
handle);
if (rc)
- GOTO(stop_trans, rc);
+ GOTO(stop, rc);
rc = mdd_trans_start(env, mdd, handle);
if (rc)
- GOTO(stop_trans, rc);
+ GOTO(stop, rc);
- if (nsonly)
- rc = mdd_migrate_update(env, spobj, tpobj, sobj, lname, attr,
- spattr, tpattr, ldata, ma, handle);
+ if (spec->sp_migrate_nsonly)
+ rc = mdd_migrate_update(env, spobj, tpobj, sobj, sname, tname,
+ attr, spattr, tpattr, ldata, ma,
+ handle);
else
- rc = mdd_migrate_create(env, spobj, tpobj, sobj, tobj, lname,
- spattr, tpattr, attr, &sbuf, ldata, ma,
- spec, hint, handle);
+ rc = mdd_migrate_create(env, spobj, tpobj, sobj, tobj, sname,
+ tname, spattr, tpattr, attr, &sbuf,
+ ldata, ma, spec, hint, handle);
if (rc)
- GOTO(stop_trans, rc);
+ GOTO(stop, rc);
rc = mdd_changelog_ns_store(env, mdd, CL_MIGRATE, 0,
- nsonly ? sobj : tobj, mdd_object_fid(spobj),
- mdd_object_fid(sobj), mdd_object_fid(tpobj),
- lname, lname, handle);
+ spec->sp_migrate_nsonly ? sobj : tobj,
+ mdd_object_fid(spobj), mdd_object_fid(sobj),
+ mdd_object_fid(tpobj), tname, sname,
+ handle);
if (rc)
- GOTO(stop_trans, rc);
+ GOTO(stop, rc);
EXIT;
-stop_trans:
+stop:
rc = mdd_trans_stop(env, mdd, rc, handle);
out:
+ lu_buf_free(&sbuf);
+
+ return rc;
+}
+
+/**
+ * Migrate directory or file between MDTs.
+ *
+ * \param[in] env execution environment
+ * \param[in] md_pobj parent master object
+ * \param[in] md_sobj source object
+ * \param[in] lname file name
+ * \param[in] md_tobj target object
+ * \param[in] spec target creation spec
+ * \param[in] ma used to update \a pobj mtime and ctime
+ *
+ * \retval 0 on success
+ * \retval -errno on failure
+ */
+static int mdd_migrate(const struct lu_env *env, struct md_object *md_pobj,
+ struct md_object *md_sobj, const struct lu_name *lname,
+ struct md_object *md_tobj, struct md_op_spec *spec,
+ struct md_attr *ma)
+{
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct mdd_device *mdd = mdo2mdd(md_pobj);
+ struct mdd_object *pobj = md2mdd_obj(md_pobj);
+ struct mdd_object *sobj = md2mdd_obj(md_sobj);
+ struct mdd_object *tobj = md2mdd_obj(md_tobj);
+ struct mdd_object *spobj = NULL;
+ struct mdd_object *tpobj = NULL;
+ struct lu_buf pbuf = { NULL };
+ struct lu_fid *fid = &info->mti_fid2;
+ struct lmv_mds_md_v1 *lmv;
+ int rc;
+
+ ENTRY;
+
+ /* locate source and target stripe on pobj, which are the real parent */
+ rc = mdd_stripe_get(env, pobj, &pbuf, XATTR_NAME_LMV);
+ if (rc < 0 && rc != -ENODATA)
+ RETURN(rc);
+
+ lmv = pbuf.lb_buf;
+ if (lmv) {
+ int index;
+
+ if (!lmv_is_sane(lmv))
+ GOTO(out, rc = -EBADF);
+
+ /* locate target parent stripe */
+ /* fail check here to make sure top dir migration succeed. */
+ if (lmv_is_migrating(lmv) &&
+ OBD_FAIL_CHECK_RESET(OBD_FAIL_MIGRATE_ENTRIES, 0))
+ GOTO(out, rc = -EIO);
+
+ index = lmv_name_to_stripe_index(lmv, lname->ln_name,
+ lname->ln_namelen);
+ if (index < 0)
+ GOTO(out, rc = index);
+
+ fid_le_to_cpu(fid, &lmv->lmv_stripe_fids[index]);
+ tpobj = mdd_object_find(env, mdd, fid);
+ if (IS_ERR(tpobj))
+ GOTO(out, rc = PTR_ERR(tpobj));
+
+ /* locate source parent stripe */
+ if (lmv_is_layout_changing(lmv)) {
+ index = lmv_name_to_stripe_index_old(lmv,
+ lname->ln_name,
+ lname->ln_namelen);
+ if (index < 0)
+ GOTO(out, rc = index);
+
+ fid_le_to_cpu(fid, &lmv->lmv_stripe_fids[index]);
+ spobj = mdd_object_find(env, mdd, fid);
+ if (IS_ERR(spobj))
+ GOTO(out, rc = PTR_ERR(spobj));
+
+ /* parent stripe unchanged */
+ if (spobj == tpobj) {
+ if (!lmv_is_restriping(lmv))
+ GOTO(out, rc = -EINVAL);
+ GOTO(out, rc = -EALREADY);
+ }
+ } else {
+ spobj = tpobj;
+ mdd_object_get(spobj);
+ }
+ } else {
+ tpobj = pobj;
+ spobj = pobj;
+ mdd_object_get(tpobj);
+ mdd_object_get(spobj);
+ }
+
+ rc = mdd_migrate_object(env, spobj, tpobj, sobj, tobj, lname, lname,
+ spec, ma);
+ GOTO(out, rc);
+
+out:
if (!IS_ERR_OR_NULL(spobj))
mdd_object_put(env, spobj);
if (!IS_ERR_OR_NULL(tpobj))
mdd_object_put(env, tpobj);
- lu_buf_free(&sbuf);
lu_buf_free(&pbuf);
return rc;
RETURN(rc);
lmv = lmv_buf.lb_buf;
+ if (!lmv_is_sane(lmv))
+ RETURN(-EBADF);
+
lmu = mlc->mlc_buf.lb_buf;
/* adjust the default value '0' to '1' */
if (lmu->lum_stripe_count == 0)
lmu->lum_stripe_count = cpu_to_le32(1);
- /* this was checked in MDT */
+ /* these were checked in MDT */
LASSERT(le32_to_cpu(lmu->lum_stripe_count) <
le32_to_cpu(lmv->lmv_stripe_count));
+ LASSERT(!lmv_is_splitting(lmv));
+ LASSERT(lmv_is_migrating(lmv) || lmv_is_merging(lmv));
- /*
- * if obj stripe count will be shrunk to 1, we need to convert it to a
- * normal dir, which will change its fid and update parent namespace,
- * get obj name and parent fid from linkea.
+ /* if dir stripe count will be shrunk to 1, it needs to be transformed
+ * to a plain dir, which will cause FID change and namespace update.
*/
if (le32_to_cpu(lmu->lum_stripe_count) == 1) {
struct linkea_data *ldata = &info->mti_link_data;
return rc;
}
+static int mdd_dir_declare_split_plain(const struct lu_env *env,
+ struct mdd_device *mdd,
+ struct mdd_object *pobj,
+ struct mdd_object *obj,
+ struct mdd_object *tobj,
+ struct md_layout_change *mlc,
+ struct dt_allocation_hint *hint,
+ struct thandle *handle)
+{
+ struct mdd_thread_info *info = mdd_env_info(env);
+ const struct lu_name *lname = mlc->mlc_name;
+ struct lu_attr *la = &info->mti_la_for_fix;
+ struct lmv_user_md_v1 *lum = mlc->mlc_spec->u.sp_ea.eadata;
+ struct linkea_data *ldata = &info->mti_link_data;
+ struct lmv_mds_md_v1 *lmv;
+ __u32 count;
+ int rc;
+
+ mlc->mlc_opc = MD_LAYOUT_DETACH;
+ rc = mdo_declare_layout_change(env, obj, mlc, handle);
+ if (rc)
+ return rc;
+
+ memset(ldata, 0, sizeof(*ldata));
+ rc = mdd_linkea_prepare(env, obj, NULL, NULL, mdd_object_fid(pobj),
+ lname, 1, 0, ldata);
+ if (rc)
+ return rc;
+
+ count = lum->lum_stripe_count;
+ lum->lum_stripe_count = 0;
+ mdd_object_make_hint(env, pobj, tobj, mlc->mlc_attr, mlc->mlc_spec,
+ hint);
+ rc = mdd_declare_create(env, mdo2mdd(&pobj->mod_obj), pobj, tobj,
+ lname, mlc->mlc_attr, handle, mlc->mlc_spec,
+ ldata, NULL, NULL, NULL, hint);
+ if (rc)
+ return rc;
+
+ /* tobj mode will be used in lod_declare_xattr_set(), but it's not
+ * created yet.
+ */
+ tobj->mod_obj.mo_lu.lo_header->loh_attr |= S_IFDIR;
+
+ lmv = (typeof(lmv))info->mti_key;
+ memset(lmv, 0, sizeof(*lmv));
+ lmv->lmv_magic = cpu_to_le32(LMV_MAGIC_V1);
+ lmv->lmv_stripe_count = cpu_to_le32(1);
+ lmv->lmv_hash_type = cpu_to_le32(LMV_HASH_TYPE_DEFAULT);
+ fid_le_to_cpu(&lmv->lmv_stripe_fids[0], mdd_object_fid(obj));
+
+ mlc->mlc_opc = MD_LAYOUT_ATTACH;
+ mlc->mlc_buf.lb_buf = lmv;
+ mlc->mlc_buf.lb_len = lmv_mds_md_size(1, LMV_MAGIC_V1);
+ rc = mdo_declare_layout_change(env, tobj, mlc, handle);
+ if (rc)
+ return rc;
+
+ rc = mdd_iterate_xattrs(env, obj, tobj, true, handle,
+ mdo_declare_xattr_set);
+ if (rc)
+ return rc;
+
+ lum->lum_stripe_count = count;
+ mlc->mlc_opc = MD_LAYOUT_SPLIT;
+ rc = mdo_declare_layout_change(env, tobj, mlc, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_index_delete(env, pobj, lname->ln_name, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_index_insert(env, pobj, mdd_object_fid(tobj),
+ S_IFDIR, lname->ln_name, handle);
+ if (rc)
+ return rc;
+
+ la->la_valid = LA_CTIME | LA_MTIME;
+ rc = mdo_declare_attr_set(env, obj, la, handle);
+ if (rc)
+ return rc;
+
+ rc = mdo_declare_attr_set(env, pobj, la, handle);
+ if (rc)
+ return rc;
+
+ rc = mdd_declare_changelog_store(env, mdd, CL_MIGRATE, lname, NULL,
+ handle);
+ return rc;
+}
+
+/**
+ * plain directory split:
+ * 1. create \a tobj as plain directory.
+ * 2. append \a obj as first stripe of \a tobj.
+ * 3. migrate xattrs from \a obj to \a tobj.
+ * 4. split \a tobj to specific stripe count.
+ */
+static int mdd_dir_split_plain(const struct lu_env *env,
+ struct mdd_device *mdd,
+ struct mdd_object *pobj,
+ struct mdd_object *obj,
+ struct mdd_object *tobj,
+ struct md_layout_change *mlc,
+ struct dt_allocation_hint *hint,
+ struct thandle *handle)
+{
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct lu_attr *pattr = &info->mti_pattr;
+ struct lu_attr *la = &info->mti_la_for_fix;
+ const struct lu_name *lname = mlc->mlc_name;
+ struct linkea_data *ldata = &info->mti_link_data;
+ int rc;
+
+ ENTRY;
+
+ /* copy linkea out and set on target later */
+ rc = mdd_links_read(env, obj, ldata);
+ if (rc)
+ RETURN(rc);
+
+ mlc->mlc_opc = MD_LAYOUT_DETACH;
+ rc = mdo_layout_change(env, obj, mlc, handle);
+ if (rc)
+ RETURN(rc);
+
+ /* don't set nlink from obj */
+ mlc->mlc_attr->la_valid &= ~LA_NLINK;
+
+ rc = mdd_create_object(env, pobj, tobj, mlc->mlc_attr, mlc->mlc_spec,
+ NULL, NULL, NULL, hint, handle, false);
+ if (rc)
+ RETURN(rc);
+
+ rc = mdd_iterate_xattrs(env, obj, tobj, true, handle, mdo_xattr_set);
+ if (rc)
+ RETURN(rc);
+
+ rc = mdd_links_write(env, tobj, ldata, handle);
+ if (rc)
+ RETURN(rc);
+
+ rc = __mdd_index_delete(env, pobj, lname->ln_name, true, handle);
+ if (rc)
+ RETURN(rc);
+
+ rc = __mdd_index_insert(env, pobj, mdd_object_fid(tobj), S_IFDIR,
+ lname->ln_name, handle);
+ if (rc)
+ RETURN(rc);
+
+ la->la_ctime = la->la_mtime = mlc->mlc_attr->la_mtime;
+ la->la_valid = LA_CTIME | LA_MTIME;
+
+ mdd_write_lock(env, obj, DT_SRC_CHILD);
+ rc = mdd_update_time(env, tobj, mlc->mlc_attr, la, handle);
+ mdd_write_unlock(env, obj);
+ if (rc)
+ RETURN(rc);
+
+ rc = mdd_la_get(env, pobj, pattr);
+ if (rc)
+ RETURN(rc);
+
+ la->la_valid = LA_CTIME | LA_MTIME;
+
+ mdd_write_lock(env, pobj, DT_SRC_PARENT);
+ rc = mdd_update_time(env, pobj, pattr, la, handle);
+ mdd_write_unlock(env, pobj);
+ if (rc)
+ RETURN(rc);
+
+ /* FID changes, record it as CL_MIGRATE */
+ rc = mdd_changelog_ns_store(env, mdd, CL_MIGRATE, 0, tobj,
+ mdd_object_fid(pobj), mdd_object_fid(obj),
+ mdd_object_fid(pobj), lname, lname, handle);
+ RETURN(rc);
+}
+
+int mdd_dir_layout_split(const struct lu_env *env, struct md_object *o,
+ struct md_layout_change *mlc)
+{
+ struct mdd_thread_info *info = mdd_env_info(env);
+ struct mdd_device *mdd = mdo2mdd(o);
+ struct mdd_object *obj = md2mdd_obj(o);
+ struct mdd_object *pobj = md2mdd_obj(mlc->mlc_parent);
+ struct mdd_object *tobj = md2mdd_obj(mlc->mlc_target);
+ struct dt_allocation_hint *hint = &info->mti_hint;
+ bool is_plain = false;
+ struct thandle *handle;
+ int rc;
+
+ ENTRY;
+
+ LASSERT(S_ISDIR(mdd_object_type(obj)));
+
+ rc = mdo_xattr_get(env, obj, &LU_BUF_NULL, XATTR_NAME_LMV);
+ if (rc == -ENODATA)
+ is_plain = true;
+ else if (rc < 0)
+ RETURN(rc);
+
+ handle = mdd_trans_create(env, mdd);
+ if (IS_ERR(handle))
+ RETURN(PTR_ERR(handle));
+
+ if (is_plain) {
+ rc = mdd_dir_declare_split_plain(env, mdd, pobj, obj, tobj, mlc,
+ hint, handle);
+ } else {
+ mlc->mlc_opc = MD_LAYOUT_SPLIT;
+ rc = mdo_declare_layout_change(env, obj, mlc, handle);
+ if (rc)
+ GOTO(stop_trans, rc);
+
+ rc = mdd_declare_changelog_store(env, mdd, CL_LAYOUT, NULL,
+ NULL, handle);
+ }
+ if (rc)
+ GOTO(stop_trans, rc);
+
+ rc = mdd_trans_start(env, mdd, handle);
+ if (rc)
+ GOTO(stop_trans, rc);
+
+ if (is_plain) {
+ rc = mdd_dir_split_plain(env, mdd, pobj, obj, tobj, mlc, hint,
+ handle);
+ } else {
+ mdd_write_lock(env, obj, DT_TGT_CHILD);
+ rc = mdo_xattr_set(env, obj, NULL, XATTR_NAME_LMV,
+ LU_XATTR_CREATE, handle);
+ mdd_write_unlock(env, obj);
+ if (rc)
+ GOTO(stop_trans, rc);
+
+ rc = mdd_changelog_data_store_xattr(env, mdd, CL_LAYOUT, 0, obj,
+ XATTR_NAME_LMV, handle);
+ }
+ if (rc)
+ GOTO(stop_trans, rc);
+
+ EXIT;
+
+stop_trans:
+ rc = mdd_trans_stop(env, mdd, rc, handle);
+
+ return rc;
+}
+
const struct md_dir_operations mdd_dir_ops = {
.mdo_is_subdir = mdd_is_subdir,
.mdo_lookup = mdd_lookup,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff