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).
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17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
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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, Whamcloud, Inc.
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 = src->i_uid;
108 newvalid |= OBD_MD_FLUID;
110 if (valid & OBD_MD_FLGID) {
111 dst->o_gid = 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, struct obdo *src, obd_flag valid)
125 CDEBUG(D_INODE, "src obdo "LPX64" valid "LPX64", dst obdo "LPX64"\n",
126 src->o_id, src->o_valid, dst->o_id);
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 /* returns FALSE if comparison (by flags) is same, TRUE if changed */
166 int obdo_cmp_md(struct obdo *dst, struct obdo *src, obd_flag compare)
170 if ( compare & OBD_MD_FLATIME )
171 res = (res || (dst->o_atime != src->o_atime));
172 if ( compare & OBD_MD_FLMTIME )
173 res = (res || (dst->o_mtime != src->o_mtime));
174 if ( compare & OBD_MD_FLCTIME )
175 res = (res || (dst->o_ctime != src->o_ctime));
176 if ( compare & OBD_MD_FLSIZE )
177 res = (res || (dst->o_size != src->o_size));
178 if ( compare & OBD_MD_FLBLOCKS ) /* allocation of space */
179 res = (res || (dst->o_blocks != src->o_blocks));
180 if ( compare & OBD_MD_FLBLKSZ )
181 res = (res || (dst->o_blksize != src->o_blksize));
182 if ( compare & OBD_MD_FLTYPE )
183 res = (res || (((dst->o_mode ^ src->o_mode) & S_IFMT) != 0));
184 if ( compare & OBD_MD_FLMODE )
185 res = (res || (((dst->o_mode ^ src->o_mode) & ~S_IFMT) != 0));
186 if ( compare & OBD_MD_FLUID )
187 res = (res || (dst->o_uid != src->o_uid));
188 if ( compare & OBD_MD_FLGID )
189 res = (res || (dst->o_gid != src->o_gid));
190 if ( compare & OBD_MD_FLFLAGS )
191 res = (res || (dst->o_flags != src->o_flags));
192 if ( compare & OBD_MD_FLNLINK )
193 res = (res || (dst->o_nlink != src->o_nlink));
194 if ( compare & OBD_MD_FLFID ) {
195 res = (res || (dst->o_parent_seq != src->o_parent_seq));
196 res = (res || (dst->o_parent_ver != src->o_parent_ver));
198 if ( compare & OBD_MD_FLGENER )
199 res = (res || (dst->o_parent_oid != src->o_parent_oid));
200 /* XXX Don't know if thses should be included here - wasn't previously
201 if ( compare & OBD_MD_FLINLINE )
202 res = (res || memcmp(dst->o_inline, src->o_inline));
206 EXPORT_SYMBOL(obdo_cmp_md);
208 void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj)
210 ioobj->ioo_id = oa->o_id;
211 if (oa->o_valid & OBD_MD_FLGROUP)
212 ioobj->ioo_seq = oa->o_seq;
215 ioobj->ioo_type = oa->o_mode;
217 EXPORT_SYMBOL(obdo_to_ioobj);
219 void obdo_from_iattr(struct obdo *oa, struct iattr *attr, unsigned int ia_valid)
221 if (ia_valid & ATTR_ATIME) {
222 oa->o_atime = LTIME_S(attr->ia_atime);
223 oa->o_valid |= OBD_MD_FLATIME;
225 if (ia_valid & ATTR_MTIME) {
226 oa->o_mtime = LTIME_S(attr->ia_mtime);
227 oa->o_valid |= OBD_MD_FLMTIME;
229 if (ia_valid & ATTR_CTIME) {
230 oa->o_ctime = LTIME_S(attr->ia_ctime);
231 oa->o_valid |= OBD_MD_FLCTIME;
233 if (ia_valid & ATTR_SIZE) {
234 oa->o_size = attr->ia_size;
235 oa->o_valid |= OBD_MD_FLSIZE;
237 if (ia_valid & ATTR_MODE) {
238 oa->o_mode = attr->ia_mode;
239 oa->o_valid |= OBD_MD_FLTYPE | OBD_MD_FLMODE;
240 if (!cfs_curproc_is_in_groups(oa->o_gid) &&
241 !cfs_capable(CFS_CAP_FSETID))
242 oa->o_mode &= ~S_ISGID;
244 if (ia_valid & ATTR_UID) {
245 oa->o_uid = attr->ia_uid;
246 oa->o_valid |= OBD_MD_FLUID;
248 if (ia_valid & ATTR_GID) {
249 oa->o_gid = attr->ia_gid;
250 oa->o_valid |= OBD_MD_FLGID;
253 EXPORT_SYMBOL(obdo_from_iattr);
255 void iattr_from_obdo(struct iattr *attr, struct obdo *oa, obd_flag valid)
257 valid &= oa->o_valid;
259 if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
260 CDEBUG(D_INODE, "valid "LPX64", new time "LPU64"/"LPU64"\n",
261 oa->o_valid, oa->o_mtime, oa->o_ctime);
264 if (valid & OBD_MD_FLATIME) {
265 LTIME_S(attr->ia_atime) = oa->o_atime;
266 attr->ia_valid |= ATTR_ATIME;
268 if (valid & OBD_MD_FLMTIME) {
269 LTIME_S(attr->ia_mtime) = oa->o_mtime;
270 attr->ia_valid |= ATTR_MTIME;
272 if (valid & OBD_MD_FLCTIME) {
273 LTIME_S(attr->ia_ctime) = oa->o_ctime;
274 attr->ia_valid |= ATTR_CTIME;
276 if (valid & OBD_MD_FLSIZE) {
277 attr->ia_size = oa->o_size;
278 attr->ia_valid |= ATTR_SIZE;
280 #if 0 /* you shouldn't be able to change a file's type with setattr */
281 if (valid & OBD_MD_FLTYPE) {
282 attr->ia_mode = (attr->ia_mode & ~S_IFMT)|(oa->o_mode & S_IFMT);
283 attr->ia_valid |= ATTR_MODE;
286 if (valid & OBD_MD_FLMODE) {
287 attr->ia_mode = (attr->ia_mode & S_IFMT)|(oa->o_mode & ~S_IFMT);
288 attr->ia_valid |= ATTR_MODE;
289 if (!cfs_curproc_is_in_groups(oa->o_gid) &&
290 !cfs_capable(CFS_CAP_FSETID))
291 attr->ia_mode &= ~S_ISGID;
293 if (valid & OBD_MD_FLUID) {
294 attr->ia_uid = oa->o_uid;
295 attr->ia_valid |= ATTR_UID;
297 if (valid & OBD_MD_FLGID) {
298 attr->ia_gid = oa->o_gid;
299 attr->ia_valid |= ATTR_GID;
302 EXPORT_SYMBOL(iattr_from_obdo);
304 void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, obd_flag valid)
306 iattr_from_obdo(&op_data->op_attr, oa, valid);
307 if (valid & OBD_MD_FLBLOCKS) {
308 op_data->op_attr_blocks = oa->o_blocks;
309 op_data->op_attr.ia_valid |= ATTR_BLOCKS;
311 if (valid & OBD_MD_FLFLAGS) {
312 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags =
314 op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
317 EXPORT_SYMBOL(md_from_obdo);
319 void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
322 obdo_from_iattr(oa, &op_data->op_attr, valid);
323 if (valid & ATTR_BLOCKS) {
324 oa->o_blocks = op_data->op_attr_blocks;
325 oa->o_valid |= OBD_MD_FLBLOCKS;
327 if (valid & ATTR_ATTR_FLAG) {
329 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags;
330 oa->o_valid |= OBD_MD_FLFLAGS;
333 EXPORT_SYMBOL(obdo_from_md);