RETURN(rc);
}
-static int dot_lustre_mdd_permission(const struct lu_env *env,
- struct md_object *pobj,
- struct md_object *cobj,
- struct md_attr *attr, int mask)
-{
- if (mask & ~(MAY_READ | MAY_EXEC))
- return -EPERM;
- else
- return 0;
-}
-
-static int dot_lustre_mdd_xattr_get(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf,
- const char *name)
-{
- return 0;
-}
-
-static int dot_lustre_mdd_xattr_list(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf)
-{
- return 0;
-}
-
-static int dot_lustre_mdd_xattr_set(const struct lu_env *env,
- struct md_object *obj,
- const struct lu_buf *buf, const char *name,
- int fl)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_xattr_del(const struct lu_env *env,
- struct md_object *obj,
- const char *name)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_swap_layouts(const struct lu_env *env,
- struct md_object *obj1,
- struct md_object *obj2,
- __u64 flags)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_readlink(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf)
-{
- return 0;
-}
-
-static int dot_lustre_mdd_object_create(const struct lu_env *env,
- struct md_object *obj,
- const struct md_op_spec *spec,
- struct md_attr *ma)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_ref_add(const struct lu_env *env,
- struct md_object *obj,
- const struct md_attr *ma)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_ref_del(const struct lu_env *env,
- struct md_object *obj,
- struct md_attr *ma)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_open(const struct lu_env *env, struct md_object *obj,
- int flags)
-{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
-
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- mdd_obj->mod_count++;
- mdd_write_unlock(env, mdd_obj);
-
- return 0;
-}
-
-static int dot_lustre_mdd_close(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma, int mode)
-{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
-
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- mdd_obj->mod_count--;
- mdd_write_unlock(env, mdd_obj);
-
- return 0;
-}
-
-static int dot_lustre_mdd_object_sync(const struct lu_env *env,
- struct md_object *obj)
-{
- return -ENOSYS;
-}
-
-static int dot_file_lock(const struct lu_env *env, struct md_object *obj,
- struct lov_mds_md *lmm, struct ldlm_extent *extent,
- struct lustre_handle *lockh)
-{
- return -ENOSYS;
-}
-
-static int dot_file_unlock(const struct lu_env *env, struct md_object *obj,
- struct lov_mds_md *lmm, struct lustre_handle *lockh)
-{
- return -ENOSYS;
-}
-
-static struct md_object_operations mdd_dot_lustre_obj_ops = {
- .moo_permission = dot_lustre_mdd_permission,
- .moo_attr_get = mdd_attr_get,
- .moo_attr_set = mdd_attr_set,
- .moo_xattr_get = dot_lustre_mdd_xattr_get,
- .moo_xattr_list = dot_lustre_mdd_xattr_list,
- .moo_xattr_set = dot_lustre_mdd_xattr_set,
- .moo_xattr_del = dot_lustre_mdd_xattr_del,
- .moo_swap_layouts = dot_lustre_mdd_swap_layouts,
- .moo_readpage = mdd_readpage,
- .moo_readlink = dot_lustre_mdd_readlink,
- .moo_object_create = dot_lustre_mdd_object_create,
- .moo_ref_add = dot_lustre_mdd_ref_add,
- .moo_ref_del = dot_lustre_mdd_ref_del,
- .moo_open = dot_lustre_mdd_open,
- .moo_close = dot_lustre_mdd_close,
- .moo_capa_get = mdd_capa_get,
- .moo_object_sync = dot_lustre_mdd_object_sync,
- .moo_file_lock = dot_file_lock,
- .moo_file_unlock = dot_file_unlock,
-};
-
-
-static int dot_lustre_mdd_lookup(const struct lu_env *env, struct md_object *p,
- const struct lu_name *lname, struct lu_fid *f,
- struct md_op_spec *spec)
-{
- if (strcmp(lname->ln_name, mdd_obf_dir_name) == 0) {
- *f = LU_OBF_FID;
- return 0;
- }
-
- return -ENOENT;
-}
-
-static mdl_mode_t dot_lustre_mdd_lock_mode(const struct lu_env *env,
- struct md_object *obj,
- mdl_mode_t mode)
-{
- return MDL_MINMODE;
-}
-
-static int dot_lustre_mdd_create(const struct lu_env *env,
- struct md_object *pobj,
- const struct lu_name *lname,
- struct md_object *child,
- struct md_op_spec *spec,
- struct md_attr* ma)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_create_data(const struct lu_env *env,
- struct md_object *p,
- struct md_object *o,
- const struct md_op_spec *spec,
- struct md_attr *ma)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_rename(const struct lu_env *env,
- struct md_object *src_pobj,
- struct md_object *tgt_pobj,
- const struct lu_fid *lf,
- const struct lu_name *lsname,
- struct md_object *tobj,
- const struct lu_name *ltname,
- struct md_attr *ma)
-{
- return -EPERM;
-}
-
-static int dot_lustre_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)
-{
- return -EPERM;
-}
-
-static int dot_lustre_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)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_name_insert(const struct lu_env *env,
- struct md_object *obj,
- const struct lu_name *lname,
- const struct lu_fid *fid,
- const struct md_attr *ma)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_name_remove(const struct lu_env *env,
- struct md_object *obj,
- const struct lu_name *lname,
- const struct md_attr *ma)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_rename_tgt(const struct lu_env *env,
- struct md_object *pobj,
- struct md_object *tobj,
- const struct lu_fid *fid,
- const struct lu_name *lname,
- struct md_attr *ma)
-{
- return -EPERM;
-}
-
-
-static struct md_dir_operations mdd_dot_lustre_dir_ops = {
- .mdo_is_subdir = mdd_is_subdir,
- .mdo_lookup = dot_lustre_mdd_lookup,
- .mdo_lock_mode = dot_lustre_mdd_lock_mode,
- .mdo_create = dot_lustre_mdd_create,
- .mdo_create_data = dot_lustre_mdd_create_data,
- .mdo_rename = dot_lustre_mdd_rename,
- .mdo_link = dot_lustre_mdd_link,
- .mdo_unlink = dot_lustre_mdd_unlink,
- .mdo_name_insert = dot_lustre_mdd_name_insert,
- .mdo_name_remove = dot_lustre_mdd_name_remove,
- .mdo_rename_tgt = dot_lustre_mdd_rename_tgt,
-};
-
-static int obf_attr_get(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma)
-{
- struct mdd_device *mdd = mdo2mdd(obj);
-
- /* "fid" is a virtual object and hence does not have any "real"
- * attributes. So we reuse attributes of .lustre for "fid" dir */
- return mdd_attr_get(env, &mdd->mdd_dot_lustre->mod_obj, ma);
-}
-
-static int obf_attr_set(const struct lu_env *env, struct md_object *obj,
- const struct md_attr *ma)
-{
- return -EPERM;
-}
-
-static int obf_xattr_list(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf)
-{
- return 0;
-}
-
-static int obf_xattr_get(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf,
- const char *name)
-{
- struct mdd_device *mdd = mdo2mdd(obj);
- struct mdd_object *root;
- int rc = 0;
-
- /*
- * .lustre returns default striping which is 'stored'
- * in the root
- */
- if (strcmp(name, XATTR_NAME_LOV) == 0) {
- root = mdd_object_find(env, mdd, &mdd->mdd_local_root_fid);
- if (IS_ERR(root))
- return PTR_ERR(root);
- rc = mdo_xattr_get(env, root, buf, name,
- mdd_object_capa(env, md2mdd_obj(obj)));
- mdd_object_put(env, root);
- }
-
- return rc;
-}
-
-static int obf_xattr_set(const struct lu_env *env,
- struct md_object *obj,
- const struct lu_buf *buf, const char *name,
- int fl)
-{
- return -EPERM;
-}
-
-static int obf_xattr_del(const struct lu_env *env,
- struct md_object *obj,
- const char *name)
-{
- return -EPERM;
-}
-
-static int obf_mdd_open(const struct lu_env *env, struct md_object *obj,
- int flags)
-{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
-
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- mdd_obj->mod_count++;
- mdd_write_unlock(env, mdd_obj);
-
- return 0;
-}
-
-static int obf_mdd_close(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma, int mode)
-{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
-
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- mdd_obj->mod_count--;
- mdd_write_unlock(env, mdd_obj);
-
- return 0;
-}
-
-/** Nothing to list in "fid" directory */
-static int obf_mdd_readpage(const struct lu_env *env, struct md_object *obj,
- const struct lu_rdpg *rdpg)
-{
- return -EPERM;
-}
-
-static struct md_object_operations mdd_obf_obj_ops = {
- .moo_attr_get = obf_attr_get,
- .moo_attr_set = obf_attr_set,
- .moo_xattr_list = obf_xattr_list,
- .moo_xattr_get = obf_xattr_get,
- .moo_xattr_set = obf_xattr_set,
- .moo_xattr_del = obf_xattr_del,
- .moo_open = obf_mdd_open,
- .moo_close = obf_mdd_close,
- .moo_readpage = obf_mdd_readpage,
-};
-
/**
* Lookup method for "fid" object. Only filenames with correct SEQ:OID format
* are valid. We also check if object with passed fid exists or not.
.mdo_unlink = obf_unlink
};
-/**
- * Create special in-memory "fid" object for open-by-fid.
- */
-static int mdd_obf_setup(const struct lu_env *env, struct mdd_device *m)
-{
- struct mdd_object *mdd_obf;
-
- mdd_obf = mdd_object_find(env, m, &LU_OBF_FID);
- if (mdd_obf == NULL || IS_ERR(mdd_obf))
- return -ENOENT;
-
- m->mdd_dot_lustre_objs.mdd_obf = mdd_obf;
- mdd_obf->mod_obj.mo_dir_ops = &mdd_obf_dir_ops;
- mdd_obf->mod_obj.mo_ops = &mdd_obf_obj_ops;
- /* Don't allow objects to be created in "fid" dir */
- mdd_obf->mod_flags |= IMMUTE_OBJ;
-
- mdd2lu_obj(mdd_obf)->lo_header->loh_attr |= LOHA_EXISTS | S_IFDIR;
- return 0;
-}
-
static struct md_object *mdo_locate(const struct lu_env *env,
struct md_device *md,
const struct lu_fid *fid)
return mdo;
}
+/**
+ * Create special in-memory "fid" object for open-by-fid.
+ */
+static int mdd_obf_setup(const struct lu_env *env, struct mdd_device *m)
+{
+ struct md_object *mdo;
+ struct mdd_object *mdd_obf;
+ struct lu_fid fid = LU_OBF_FID;
+ int rc;
+
+ rc = mdd_local_file_create(env, m, mdd_object_fid(m->mdd_dot_lustre),
+ mdd_obf_dir_name, S_IFDIR | S_IXUSR, &fid);
+ if (rc < 0)
+ RETURN(rc);
+
+ mdo = mdo_locate(env, &m->mdd_md_dev, &fid);
+ if (IS_ERR(mdo))
+ RETURN(PTR_ERR(mdo));
+
+ LASSERT(lu_object_exists(&mdo->mo_lu));
+
+ mdd_obf = md2mdd_obj(mdo);
+ mdd_obf->mod_obj.mo_dir_ops = &mdd_obf_dir_ops;
+ m->mdd_dot_lustre_objs.mdd_obf = mdd_obf;
+
+ return 0;
+}
+
/** Setup ".lustre" directory object */
static int mdd_dot_lustre_setup(const struct lu_env *env, struct mdd_device *m)
{
LASSERT(lu_object_exists(&mdo->mo_lu));
m->mdd_dot_lustre = md2mdd_obj(mdo);
- m->mdd_dot_lustre->mod_obj.mo_dir_ops = &mdd_dot_lustre_dir_ops;
- m->mdd_dot_lustre->mod_obj.mo_ops = &mdd_dot_lustre_obj_ops;
rc = mdd_obf_setup(env, m);
if (rc) {
git://git.whamcloud.com / fs / lustre-release.git / commitdiff