staging/lustre/obdclass: remove obsoleted md_local_file.c

This library is not used anymore and is replaced by
local_storage.c. Patch removed last remnants of it.

Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2886
Lustre-change: http://review.whamcloud.com/6107
Signed-off-by: Mikhail Pershin <mike.pershin@intel.com>
Reviewed-by: Fan Yong <fan.yong@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

3 files changed, 1 insertions, 498 deletions

diff --git a/drivers/staging/lustre/lustre/include/md_object.h b/drivers/staging/lustre/lustre/include/md_object.h
index eefa0f1..92d6420 100644
--- a/drivers/staging/lustre/lustre/include/md_object.h
+++ b/drivers/staging/lustre/lustre/include/md_object.h
@@ -859,44 +859,6 @@ struct lu_local_obj_desc {
 	struct list_head		       llod_linkage;
 };
 
-struct md_object *llo_store_resolve(const struct lu_env *env,
-				    struct md_device *md,
-				    struct dt_device *dt,
-				    const char *path,
-				    struct lu_fid *fid);
-
-struct md_object *llo_store_open(const struct lu_env *env,
-				 struct md_device *md,
-				 struct dt_device *dt,
-				 const char *dirname,
-				 const char *objname,
-				 struct lu_fid *fid);
-
-struct md_object *llo_store_create_index(const struct lu_env *env,
-					 struct md_device *md,
-					 struct dt_device *dt,
-					 const char *dirname,
-					 const char *objname,
-					 const struct lu_fid *fid,
-					 const struct dt_index_features *feat);
-
-struct md_object *llo_store_create(const struct lu_env *env,
-				   struct md_device *md,
-				   struct dt_device *dt,
-				   const char *dirname,
-				   const char *objname,
-				   const struct lu_fid *fid);
-
-void llo_local_obj_register(struct lu_local_obj_desc *);
-void llo_local_obj_unregister(struct lu_local_obj_desc *);
-
-int llo_local_objects_setup(const struct lu_env *env,
-			     struct md_device * md,
-			     struct dt_device * dt);
-
-int llo_global_init(void);
-void llo_global_fini(void);
-
 int lustre_buf2som(void *buf, int rc, struct md_som_data *msd);
 int lustre_buf2hsm(void *buf, int rc, struct md_hsm *mh);
 void lustre_hsm2buf(void *buf, struct md_hsm *mh);
diff --git a/drivers/staging/lustre/lustre/obdclass/Makefile b/drivers/staging/lustre/lustre/obdclass/Makefile
index 3f53ec6..b80c13c 100644
--- a/drivers/staging/lustre/lustre/obdclass/Makefile
+++ b/drivers/staging/lustre/lustre/obdclass/Makefile
@@ -7,7 +7,7 @@ obdclass-y := linux/linux-module.o linux/linux-obdo.o linux/linux-sysctl.o \
 	      local_storage.o statfs_pack.o obdo.o obd_config.o obd_mount.o\
 	      mea.o lu_object.o dt_object.o capa.o cl_object.o   \
 	      cl_page.o cl_lock.o cl_io.o lu_ref.o acl.o idmap.o	   \
-	      md_local_object.o lu_ucred.o
+	      lu_ucred.o
 
 
 ccflags-y := -I$(src)/../include
diff --git a/drivers/staging/lustre/lustre/obdclass/md_local_object.c b/drivers/staging/lustre/lustre/obdclass/md_local_object.c
deleted file mode 100644
index ac5f44f..0000000
--- a/drivers/staging/lustre/lustre/obdclass/md_local_object.c
+++ /dev/null
@@ -1,459 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/md_local_object.c
- *
- * Lustre Local Object create APIs
- * 'create on first mount' facility. Files registed under llo module will
- * be created on first mount.
- *
- * Author: Pravin Shelar  <pravin.shelar@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <obd_support.h>
-#include <lustre_disk.h>
-#include <lustre_fid.h>
-#include <lu_object.h>
-#include <linux/list.h>
-#include <md_object.h>
-
-
-/** List head to hold list of objects to be created. */
-static struct list_head llo_lobj_list;
-
-/** Lock to protect list manipulations */
-static struct mutex	llo_lock;
-
-/**
- * Structure used to maintain state of path parsing.
- * \see llo_find_entry, llo_store_resolve
- */
-struct llo_find_hint {
-	struct lu_fid	*lfh_cfid;
-	struct md_device     *lfh_md;
-	struct md_object     *lfh_pobj;
-};
-
-/**
- * Thread Local storage for this module.
- */
-struct llo_thread_info {
-	/** buffer to resolve path */
-	char		    lti_buf[DT_MAX_PATH];
-	/** used for path resolve */
-	struct lu_fid	   lti_fid;
-	/** used to pass child object fid */
-	struct lu_fid	   lti_cfid;
-	struct llo_find_hint    lti_lfh;
-	struct md_op_spec       lti_spc;
-	struct md_attr	  lti_ma;
-	struct lu_name	  lti_lname;
-};
-
-LU_KEY_INIT(llod_global, struct llo_thread_info);
-LU_KEY_FINI(llod_global, struct llo_thread_info);
-
-static struct lu_context_key llod_key = {
-	.lct_tags = LCT_MD_THREAD,
-	.lct_init = llod_global_key_init,
-	.lct_fini = llod_global_key_fini
-};
-
-static inline struct llo_thread_info * llo_env_info(const struct lu_env *env)
-{
-	return lu_context_key_get(&env->le_ctx,  &llod_key);
-}
-
-/**
- * Search md object for given fid.
- */
-static struct md_object *llo_locate(const struct lu_env *env,
-				    struct md_device *md,
-				    const struct lu_fid *fid)
-{
-	struct lu_object *obj;
-	struct md_object *mdo;
-
-	obj = lu_object_find(env, &md->md_lu_dev, fid, NULL);
-	if (!IS_ERR(obj)) {
-		obj = lu_object_locate(obj->lo_header, md->md_lu_dev.ld_type);
-		LASSERT(obj != NULL);
-		mdo = (struct md_object *) obj;
-	} else
-		mdo = (struct md_object *)obj;
-	return mdo;
-}
-
-/**
- * Lookup FID for object named \a name in directory \a pobj.
- */
-static int llo_lookup(const struct lu_env  *env,
-		      struct md_object *pobj,
-		      const char *name,
-		      struct lu_fid *fid)
-{
-	struct llo_thread_info *info = llo_env_info(env);
-	struct lu_name	  *lname = &info->lti_lname;
-	struct md_op_spec       *spec = &info->lti_spc;
-
-	spec->sp_feat = NULL;
-	spec->sp_cr_flags = 0;
-	spec->sp_cr_lookup = 0;
-	spec->sp_cr_mode = 0;
-
-	lname->ln_name = name;
-	lname->ln_namelen = strlen(name);
-
-	return mdo_lookup(env, pobj, lname, fid, spec);
-}
-
-/**
- * Function to look up path component, this is passed to parsing
- * function. \see llo_store_resolve
- *
- * \retval      rc returns error code for lookup or locate operation
- *
- * pointer to object is returned in data (lfh->lfh_pobj)
- */
-static int llo_find_entry(const struct lu_env  *env,
-			  const char *name, void *data)
-{
-	struct llo_find_hint    *lfh = data;
-	struct md_device	*md = lfh->lfh_md;
-	struct lu_fid	   *fid = lfh->lfh_cfid;
-	struct md_object	*obj = lfh->lfh_pobj;
-	int		     result;
-
-	/* lookup fid for object */
-	result = llo_lookup(env, obj, name, fid);
-	lu_object_put(env, &obj->mo_lu);
-
-	if (result == 0) {
-		/* get md object for fid that we got in lookup */
-		obj = llo_locate(env, md, fid);
-		if (IS_ERR(obj))
-			result = PTR_ERR(obj);
-	}
-
-	lfh->lfh_pobj = obj;
-	return result;
-}
-
-static struct md_object *llo_reg_open(const struct lu_env *env,
-				      struct md_device *md,
-				      struct md_object *p,
-				      const char *name,
-				      struct lu_fid *fid)
-{
-	struct md_object *o;
-	int result;
-
-	result = llo_lookup(env, p, name, fid);
-	if (result == 0)
-		o = llo_locate(env, md, fid);
-	else
-		o = ERR_PTR(result);
-
-	return o;
-}
-
-/**
- * Resolve given \a path, on success function returns
- * md object for last directory and \a fid points to
- * its fid.
- */
-struct md_object *llo_store_resolve(const struct lu_env *env,
-				    struct md_device *md,
-				    struct dt_device *dt,
-				    const char *path,
-				    struct lu_fid *fid)
-{
-	struct llo_thread_info *info = llo_env_info(env);
-	struct llo_find_hint *lfh = &info->lti_lfh;
-	char *local = info->lti_buf;
-	struct md_object	*obj;
-	int result;
-
-	strncpy(local, path, DT_MAX_PATH);
-	local[DT_MAX_PATH - 1] = '\0';
-
-	lfh->lfh_md = md;
-	lfh->lfh_cfid = fid;
-	/* start path resolution from backend fs root. */
-	result = dt->dd_ops->dt_root_get(env, dt, fid);
-	if (result == 0) {
-		/* get md object for root */
-		obj = llo_locate(env, md, fid);
-		if (!IS_ERR(obj)) {
-			/* start path parser from root md */
-			lfh->lfh_pobj = obj;
-			result = dt_path_parser(env, local, llo_find_entry, lfh);
-			if (result != 0)
-				obj = ERR_PTR(result);
-			else
-				obj = lfh->lfh_pobj;
-		}
-	} else {
-		obj = ERR_PTR(result);
-	}
-	return obj;
-}
-EXPORT_SYMBOL(llo_store_resolve);
-
-/**
- * Returns md object for \a objname in given \a dirname.
- */
-struct md_object *llo_store_open(const struct lu_env *env,
-				 struct md_device *md,
-				 struct dt_device *dt,
-				 const char *dirname,
-				 const char *objname,
-				 struct lu_fid *fid)
-{
-	struct md_object *obj;
-	struct md_object *dir;
-
-	/* search md object for parent dir */
-	dir = llo_store_resolve(env, md, dt, dirname, fid);
-	if (!IS_ERR(dir)) {
-		obj = llo_reg_open(env, md, dir, objname, fid);
-		lu_object_put(env, &dir->mo_lu);
-	} else
-		obj = dir;
-
-	return obj;
-}
-EXPORT_SYMBOL(llo_store_open);
-
-static struct md_object *llo_create_obj(const struct lu_env *env,
-					struct md_device *md,
-					struct md_object *dir,
-					const char *objname,
-					const struct lu_fid *fid,
-					const struct dt_index_features *feat)
-{
-	struct llo_thread_info *info = llo_env_info(env);
-	struct md_object	*mdo;
-	struct md_attr	  *ma = &info->lti_ma;
-	struct md_op_spec       *spec = &info->lti_spc;
-	struct lu_name	  *lname = &info->lti_lname;
-	struct lu_attr	  *la = &ma->ma_attr;
-	int rc;
-
-	mdo = llo_locate(env, md, fid);
-	if (IS_ERR(mdo))
-		return mdo;
-
-	lname->ln_name = objname;
-	lname->ln_namelen = strlen(objname);
-
-	spec->sp_feat = feat;
-	spec->sp_cr_flags = 0;
-	spec->sp_cr_lookup = 1;
-	spec->sp_cr_mode = 0;
-
-	if (feat == &dt_directory_features)
-		la->la_mode = S_IFDIR | S_IXUGO;
-	else
-		la->la_mode = S_IFREG;
-
-	la->la_mode |= S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
-	la->la_uid = la->la_gid = 0;
-	la->la_valid = LA_MODE | LA_UID | LA_GID;
-
-	ma->ma_valid = 0;
-	ma->ma_need = 0;
-
-	rc = mdo_create(env, dir, lname, mdo, spec, ma);
-
-	if (rc) {
-		lu_object_put(env, &mdo->mo_lu);
-		mdo = ERR_PTR(rc);
-	}
-
-	return mdo;
-}
-
-/**
- * Create md object, object could be diretcory or
- * special index defined by \a feat in \a directory.
- *
- *       \param  md       device
- *       \param  dirname  parent directory
- *       \param  objname  file name
- *       \param  fid      object fid
- *       \param  feat     index features required for directory create
- */
-
-struct md_object *llo_store_create_index(const struct lu_env *env,
-					 struct md_device *md,
-					 struct dt_device *dt,
-					 const char *dirname,
-					 const char *objname,
-					 const struct lu_fid *fid,
-					 const struct dt_index_features *feat)
-{
-	struct llo_thread_info *info = llo_env_info(env);
-	struct md_object *obj;
-	struct md_object *dir;
-	struct lu_fid *ignore = &info->lti_fid;
-
-	dir = llo_store_resolve(env, md, dt, dirname, ignore);
-	if (!IS_ERR(dir)) {
-		obj = llo_create_obj(env, md, dir, objname, fid, feat);
-		lu_object_put(env, &dir->mo_lu);
-	} else {
-		obj = dir;
-	}
-	return obj;
-}
-
-EXPORT_SYMBOL(llo_store_create_index);
-
-/**
- * Create md object for regular file in \a directory.
- *
- *       \param  md       device
- *       \param  dirname  parent directory
- *       \param  objname  file name
- *       \param  fid      object fid.
- */
-
-struct md_object *llo_store_create(const struct lu_env *env,
-				   struct md_device *md,
-				   struct dt_device *dt,
-				   const char *dirname,
-				   const char *objname,
-				   const struct lu_fid *fid)
-{
-	return llo_store_create_index(env, md, dt, dirname,
-				      objname, fid, NULL);
-}
-
-EXPORT_SYMBOL(llo_store_create);
-
-/**
- * Register object for 'create on first mount' facility.
- * objects are created in order of registration.
- */
-
-void llo_local_obj_register(struct lu_local_obj_desc *llod)
-{
-	mutex_lock(&llo_lock);
-	list_add_tail(&llod->llod_linkage, &llo_lobj_list);
-	mutex_unlock(&llo_lock);
-}
-
-EXPORT_SYMBOL(llo_local_obj_register);
-
-void llo_local_obj_unregister(struct lu_local_obj_desc *llod)
-{
-	mutex_lock(&llo_lock);
-	list_del(&llod->llod_linkage);
-	mutex_unlock(&llo_lock);
-}
-
-EXPORT_SYMBOL(llo_local_obj_unregister);
-
-/**
- * Created registed objects.
- */
-
-int llo_local_objects_setup(const struct lu_env *env,
-			     struct md_device * md,
-			     struct dt_device *dt)
-{
-	struct llo_thread_info *info = llo_env_info(env);
-	struct lu_fid *fid;
-	struct lu_local_obj_desc *scan;
-	struct md_object *mdo;
-	const char *dir;
-	int rc = 0;
-
-	fid = &info->lti_cfid;
-	mutex_lock(&llo_lock);
-
-	list_for_each_entry(scan, &llo_lobj_list, llod_linkage) {
-		lu_local_obj_fid(fid, scan->llod_oid);
-		dir = "";
-		if (scan->llod_dir)
-			dir = scan->llod_dir;
-
-		if (scan->llod_is_index)
-			mdo = llo_store_create_index(env, md, dt ,
-						     dir, scan->llod_name,
-						     fid,
-						     scan->llod_feat);
-		else
-			mdo = llo_store_create(env, md, dt,
-					       dir, scan->llod_name,
-					       fid);
-		if (IS_ERR(mdo) && PTR_ERR(mdo) != -EEXIST) {
-			rc = PTR_ERR(mdo);
-			CERROR("creating obj [%s] fid = "DFID" rc = %d\n",
-			       scan->llod_name, PFID(fid), rc);
-			goto out;
-		}
-
-		if (!IS_ERR(mdo))
-			lu_object_put(env, &mdo->mo_lu);
-	}
-
-out:
-	mutex_unlock(&llo_lock);
-	return rc;
-}
-
-EXPORT_SYMBOL(llo_local_objects_setup);
-
-int llo_global_init(void)
-{
-	int result;
-
-	INIT_LIST_HEAD(&llo_lobj_list);
-	mutex_init(&llo_lock);
-
-	LU_CONTEXT_KEY_INIT(&llod_key);
-	result = lu_context_key_register(&llod_key);
-	return result;
-}
-
-void llo_global_fini(void)
-{
-	lu_context_key_degister(&llod_key);
-	LASSERT(list_empty(&llo_lobj_list));
-}