4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2012, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/obdclass/obdo.c
38 * Object Devices Class Driver
39 * These are the only exported functions, they provide some generic
40 * infrastructure for managing object devices
43 #define DEBUG_SUBSYSTEM S_CLASS
46 #include "../liblustre/llite_lib.h"
48 #include <obd_class.h>
49 #include <lustre/lustre_idl.h>
52 void obdo_set_parent_fid(struct obdo *dst, const struct lu_fid *parent)
54 dst->o_parent_oid = fid_oid(parent);
55 dst->o_parent_seq = fid_seq(parent);
56 dst->o_parent_ver = fid_ver(parent);
57 dst->o_valid |= OBD_MD_FLGENER | OBD_MD_FLFID;
59 EXPORT_SYMBOL(obdo_set_parent_fid);
61 /* WARNING: the file systems must take care not to tinker with
62 attributes they don't manage (such as blocks). */
63 void obdo_from_inode(struct obdo *dst, struct inode *src, obd_flag valid)
65 obd_flag newvalid = 0;
67 if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
68 CDEBUG(D_INODE, "valid %x, new time %lu/%lu\n",
69 valid, LTIME_S(src->i_mtime),
70 LTIME_S(src->i_ctime));
72 if (valid & OBD_MD_FLATIME) {
73 dst->o_atime = LTIME_S(src->i_atime);
74 newvalid |= OBD_MD_FLATIME;
76 if (valid & OBD_MD_FLMTIME) {
77 dst->o_mtime = LTIME_S(src->i_mtime);
78 newvalid |= OBD_MD_FLMTIME;
80 if (valid & OBD_MD_FLCTIME) {
81 dst->o_ctime = LTIME_S(src->i_ctime);
82 newvalid |= OBD_MD_FLCTIME;
84 if (valid & OBD_MD_FLSIZE) {
85 dst->o_size = i_size_read(src);
86 newvalid |= OBD_MD_FLSIZE;
88 if (valid & OBD_MD_FLBLOCKS) { /* allocation of space (x512 bytes) */
89 dst->o_blocks = src->i_blocks;
90 newvalid |= OBD_MD_FLBLOCKS;
92 if (valid & OBD_MD_FLBLKSZ) { /* optimal block size */
93 dst->o_blksize = ll_inode_blksize(src);
94 newvalid |= OBD_MD_FLBLKSZ;
96 if (valid & OBD_MD_FLTYPE) {
97 dst->o_mode = (dst->o_mode & S_IALLUGO) |
98 (src->i_mode & S_IFMT);
99 newvalid |= OBD_MD_FLTYPE;
101 if (valid & OBD_MD_FLMODE) {
102 dst->o_mode = (dst->o_mode & S_IFMT) |
103 (src->i_mode & S_IALLUGO);
104 newvalid |= OBD_MD_FLMODE;
106 if (valid & OBD_MD_FLUID) {
107 dst->o_uid = from_kuid(&init_user_ns, src->i_uid);
108 newvalid |= OBD_MD_FLUID;
110 if (valid & OBD_MD_FLGID) {
111 dst->o_gid = from_kgid(&init_user_ns, src->i_gid);
112 newvalid |= OBD_MD_FLGID;
114 if (valid & OBD_MD_FLFLAGS) {
115 dst->o_flags = ll_inode_flags(src);
116 newvalid |= OBD_MD_FLFLAGS;
118 dst->o_valid |= newvalid;
120 EXPORT_SYMBOL(obdo_from_inode);
122 void obdo_cpy_md(struct obdo *dst, const struct obdo *src, obd_flag valid)
125 CDEBUG(D_INODE, "src obdo "DOSTID" valid "LPX64", dst obdo "DOSTID"\n",
126 POSTID(&src->o_oi), src->o_valid, POSTID(&dst->o_oi));
128 if (valid & OBD_MD_FLATIME)
129 dst->o_atime = src->o_atime;
130 if (valid & OBD_MD_FLMTIME)
131 dst->o_mtime = src->o_mtime;
132 if (valid & OBD_MD_FLCTIME)
133 dst->o_ctime = src->o_ctime;
134 if (valid & OBD_MD_FLSIZE)
135 dst->o_size = src->o_size;
136 if (valid & OBD_MD_FLBLOCKS) /* allocation of space */
137 dst->o_blocks = src->o_blocks;
138 if (valid & OBD_MD_FLBLKSZ)
139 dst->o_blksize = src->o_blksize;
140 if (valid & OBD_MD_FLTYPE)
141 dst->o_mode = (dst->o_mode & ~S_IFMT) | (src->o_mode & S_IFMT);
142 if (valid & OBD_MD_FLMODE)
143 dst->o_mode = (dst->o_mode & S_IFMT) | (src->o_mode & ~S_IFMT);
144 if (valid & OBD_MD_FLUID)
145 dst->o_uid = src->o_uid;
146 if (valid & OBD_MD_FLGID)
147 dst->o_gid = src->o_gid;
148 if (valid & OBD_MD_FLFLAGS)
149 dst->o_flags = src->o_flags;
150 if (valid & OBD_MD_FLFID) {
151 dst->o_parent_seq = src->o_parent_seq;
152 dst->o_parent_ver = src->o_parent_ver;
154 if (valid & OBD_MD_FLGENER)
155 dst->o_parent_oid = src->o_parent_oid;
156 if (valid & OBD_MD_FLHANDLE)
157 dst->o_handle = src->o_handle;
158 if (valid & OBD_MD_FLCOOKIE)
159 dst->o_lcookie = src->o_lcookie;
161 dst->o_valid |= valid;
163 EXPORT_SYMBOL(obdo_cpy_md);
165 void obdo_to_ioobj(const struct obdo *oa, struct obd_ioobj *ioobj)
167 ioobj->ioo_oid = oa->o_oi;
168 if (unlikely(!(oa->o_valid & OBD_MD_FLGROUP)))
169 ostid_set_seq_mdt0(&ioobj->ioo_oid);
171 /* Since 2.4 this does not contain o_mode in the low 16 bits.
172 * Instead, it holds (bd_md_max_brw - 1) for multi-bulk BRW RPCs */
173 ioobj->ioo_max_brw = 0;
175 EXPORT_SYMBOL(obdo_to_ioobj);
177 static void iattr_from_obdo(struct iattr *attr, const struct obdo *oa,
180 valid &= oa->o_valid;
182 if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
183 CDEBUG(D_INODE, "valid "LPX64", new time "LPU64"/"LPU64"\n",
184 oa->o_valid, oa->o_mtime, oa->o_ctime);
187 if (valid & OBD_MD_FLATIME) {
188 LTIME_S(attr->ia_atime) = oa->o_atime;
189 attr->ia_valid |= ATTR_ATIME;
191 if (valid & OBD_MD_FLMTIME) {
192 LTIME_S(attr->ia_mtime) = oa->o_mtime;
193 attr->ia_valid |= ATTR_MTIME;
195 if (valid & OBD_MD_FLCTIME) {
196 LTIME_S(attr->ia_ctime) = oa->o_ctime;
197 attr->ia_valid |= ATTR_CTIME;
199 if (valid & OBD_MD_FLSIZE) {
200 attr->ia_size = oa->o_size;
201 attr->ia_valid |= ATTR_SIZE;
203 #if 0 /* you shouldn't be able to change a file's type with setattr */
204 if (valid & OBD_MD_FLTYPE) {
205 attr->ia_mode = (attr->ia_mode & ~S_IFMT)|(oa->o_mode & S_IFMT);
206 attr->ia_valid |= ATTR_MODE;
209 if (valid & OBD_MD_FLMODE) {
210 attr->ia_mode = (attr->ia_mode & S_IFMT)|(oa->o_mode & ~S_IFMT);
211 attr->ia_valid |= ATTR_MODE;
212 if (!in_group_p(make_kgid(&init_user_ns, oa->o_gid)) &&
213 !cfs_capable(CFS_CAP_FSETID))
214 attr->ia_mode &= ~S_ISGID;
216 if (valid & OBD_MD_FLUID) {
217 attr->ia_uid = make_kuid(&init_user_ns, oa->o_uid);
218 attr->ia_valid |= ATTR_UID;
220 if (valid & OBD_MD_FLGID) {
221 attr->ia_gid = make_kgid(&init_user_ns, oa->o_gid);
222 attr->ia_valid |= ATTR_GID;
226 void md_from_obdo(struct md_op_data *op_data, const struct obdo *oa,
229 iattr_from_obdo(&op_data->op_attr, oa, valid);
230 if (valid & OBD_MD_FLBLOCKS) {
231 op_data->op_attr_blocks = oa->o_blocks;
232 op_data->op_attr.ia_valid |= ATTR_BLOCKS;
234 if (valid & OBD_MD_FLFLAGS) {
235 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags =
237 op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
240 EXPORT_SYMBOL(md_from_obdo);