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Commit | Line | Data |
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b3b94faa DT |
1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
ca390601 | 3 | * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. |
b3b94faa DT |
4 | * |
5 | * This copyrighted material is made available to anyone wishing to use, | |
6 | * modify, copy, or redistribute it subject to the terms and conditions | |
e9fc2aa0 | 7 | * of the GNU General Public License version 2. |
b3b94faa DT |
8 | */ |
9 | ||
10 | #include <linux/sched.h> | |
11 | #include <linux/slab.h> | |
12 | #include <linux/spinlock.h> | |
13 | #include <linux/completion.h> | |
14 | #include <linux/buffer_head.h> | |
15 | #include <linux/posix_acl.h> | |
16 | #include <linux/sort.h> | |
5c676f6d | 17 | #include <linux/gfs2_ondisk.h> |
71b86f56 | 18 | #include <linux/crc32.h> |
fcb47e0b | 19 | #include <linux/security.h> |
719ee344 | 20 | #include <linux/time.h> |
b3b94faa DT |
21 | |
22 | #include "gfs2.h" | |
5c676f6d | 23 | #include "incore.h" |
b3b94faa DT |
24 | #include "acl.h" |
25 | #include "bmap.h" | |
26 | #include "dir.h" | |
307cf6e6 | 27 | #include "xattr.h" |
b3b94faa DT |
28 | #include "glock.h" |
29 | #include "glops.h" | |
30 | #include "inode.h" | |
31 | #include "log.h" | |
32 | #include "meta_io.h" | |
b3b94faa DT |
33 | #include "quota.h" |
34 | #include "rgrp.h" | |
35 | #include "trans.h" | |
5c676f6d | 36 | #include "util.h" |
b3b94faa | 37 | |
bb8d8a6f SW |
38 | struct gfs2_inum_range_host { |
39 | u64 ir_start; | |
40 | u64 ir_length; | |
41 | }; | |
42 | ||
feaa7bba SW |
43 | static int iget_test(struct inode *inode, void *opaque) |
44 | { | |
45 | struct gfs2_inode *ip = GFS2_I(inode); | |
dbb7cae2 | 46 | u64 *no_addr = opaque; |
feaa7bba | 47 | |
009d8518 | 48 | if (ip->i_no_addr == *no_addr) |
feaa7bba | 49 | return 1; |
b3b94faa | 50 | |
feaa7bba SW |
51 | return 0; |
52 | } | |
53 | ||
54 | static int iget_set(struct inode *inode, void *opaque) | |
b3b94faa | 55 | { |
feaa7bba | 56 | struct gfs2_inode *ip = GFS2_I(inode); |
dbb7cae2 | 57 | u64 *no_addr = opaque; |
b3b94faa | 58 | |
dbb7cae2 SW |
59 | inode->i_ino = (unsigned long)*no_addr; |
60 | ip->i_no_addr = *no_addr; | |
feaa7bba SW |
61 | return 0; |
62 | } | |
b3b94faa | 63 | |
dbb7cae2 | 64 | struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr) |
feaa7bba | 65 | { |
dbb7cae2 SW |
66 | unsigned long hash = (unsigned long)no_addr; |
67 | return ilookup5(sb, hash, iget_test, &no_addr); | |
feaa7bba | 68 | } |
b3b94faa | 69 | |
dbb7cae2 | 70 | static struct inode *gfs2_iget(struct super_block *sb, u64 no_addr) |
feaa7bba | 71 | { |
dbb7cae2 SW |
72 | unsigned long hash = (unsigned long)no_addr; |
73 | return iget5_locked(sb, hash, iget_test, iget_set, &no_addr); | |
b3b94faa DT |
74 | } |
75 | ||
7a9f53b3 BM |
76 | struct gfs2_skip_data { |
77 | u64 no_addr; | |
78 | int skipped; | |
79 | }; | |
80 | ||
81 | static int iget_skip_test(struct inode *inode, void *opaque) | |
82 | { | |
83 | struct gfs2_inode *ip = GFS2_I(inode); | |
84 | struct gfs2_skip_data *data = opaque; | |
85 | ||
009d8518 | 86 | if (ip->i_no_addr == data->no_addr) { |
a4ffdde6 | 87 | if (inode->i_state & (I_FREEING|I_WILL_FREE)){ |
7a9f53b3 BM |
88 | data->skipped = 1; |
89 | return 0; | |
90 | } | |
91 | return 1; | |
92 | } | |
93 | return 0; | |
94 | } | |
95 | ||
96 | static int iget_skip_set(struct inode *inode, void *opaque) | |
97 | { | |
98 | struct gfs2_inode *ip = GFS2_I(inode); | |
99 | struct gfs2_skip_data *data = opaque; | |
100 | ||
101 | if (data->skipped) | |
102 | return 1; | |
103 | inode->i_ino = (unsigned long)(data->no_addr); | |
104 | ip->i_no_addr = data->no_addr; | |
105 | return 0; | |
106 | } | |
107 | ||
108 | static struct inode *gfs2_iget_skip(struct super_block *sb, | |
109 | u64 no_addr) | |
110 | { | |
111 | struct gfs2_skip_data data; | |
112 | unsigned long hash = (unsigned long)no_addr; | |
113 | ||
114 | data.no_addr = no_addr; | |
115 | data.skipped = 0; | |
116 | return iget5_locked(sb, hash, iget_skip_test, iget_skip_set, &data); | |
117 | } | |
118 | ||
35dcc52e WC |
119 | /** |
120 | * GFS2 lookup code fills in vfs inode contents based on info obtained | |
121 | * from directory entry inside gfs2_inode_lookup(). This has caused issues | |
122 | * with NFS code path since its get_dentry routine doesn't have the relevant | |
123 | * directory entry when gfs2_inode_lookup() is invoked. Part of the code | |
124 | * segment inside gfs2_inode_lookup code needs to get moved around. | |
125 | * | |
eaff8079 | 126 | * Clears I_NEW as well. |
35dcc52e WC |
127 | **/ |
128 | ||
129 | void gfs2_set_iop(struct inode *inode) | |
130 | { | |
c97bfe43 | 131 | struct gfs2_sbd *sdp = GFS2_SB(inode); |
35dcc52e WC |
132 | umode_t mode = inode->i_mode; |
133 | ||
134 | if (S_ISREG(mode)) { | |
135 | inode->i_op = &gfs2_file_iops; | |
f057f6cd | 136 | if (gfs2_localflocks(sdp)) |
10d21988 | 137 | inode->i_fop = &gfs2_file_fops_nolock; |
c97bfe43 | 138 | else |
10d21988 | 139 | inode->i_fop = &gfs2_file_fops; |
35dcc52e WC |
140 | } else if (S_ISDIR(mode)) { |
141 | inode->i_op = &gfs2_dir_iops; | |
f057f6cd | 142 | if (gfs2_localflocks(sdp)) |
10d21988 | 143 | inode->i_fop = &gfs2_dir_fops_nolock; |
c97bfe43 | 144 | else |
10d21988 | 145 | inode->i_fop = &gfs2_dir_fops; |
35dcc52e WC |
146 | } else if (S_ISLNK(mode)) { |
147 | inode->i_op = &gfs2_symlink_iops; | |
148 | } else { | |
d83225d4 | 149 | inode->i_op = &gfs2_file_iops; |
43a33c53 | 150 | init_special_inode(inode, inode->i_mode, inode->i_rdev); |
35dcc52e WC |
151 | } |
152 | ||
153 | unlock_new_inode(inode); | |
154 | } | |
155 | ||
b3b94faa | 156 | /** |
feaa7bba SW |
157 | * gfs2_inode_lookup - Lookup an inode |
158 | * @sb: The super block | |
dbb7cae2 | 159 | * @no_addr: The inode number |
feaa7bba | 160 | * @type: The type of the inode |
b3b94faa | 161 | * |
feaa7bba | 162 | * Returns: A VFS inode, or an error |
b3b94faa DT |
163 | */ |
164 | ||
091806ed | 165 | struct inode *gfs2_inode_lookup(struct super_block *sb, |
bb9bcf06 WC |
166 | unsigned int type, |
167 | u64 no_addr, | |
1a0eae88 | 168 | u64 no_formal_ino) |
b3b94faa | 169 | { |
7a9f53b3 BM |
170 | struct inode *inode; |
171 | struct gfs2_inode *ip; | |
b1becbde | 172 | struct gfs2_glock *io_gl = NULL; |
feaa7bba | 173 | int error; |
b3b94faa | 174 | |
1a0eae88 | 175 | inode = gfs2_iget(sb, no_addr); |
7a9f53b3 BM |
176 | ip = GFS2_I(inode); |
177 | ||
26d83ded SW |
178 | if (!inode) |
179 | return ERR_PTR(-ENOBUFS); | |
180 | ||
feaa7bba SW |
181 | if (inode->i_state & I_NEW) { |
182 | struct gfs2_sbd *sdp = GFS2_SB(inode); | |
bb9bcf06 | 183 | ip->i_no_formal_ino = no_formal_ino; |
b3b94faa | 184 | |
dbb7cae2 | 185 | error = gfs2_glock_get(sdp, no_addr, &gfs2_inode_glops, CREATE, &ip->i_gl); |
feaa7bba SW |
186 | if (unlikely(error)) |
187 | goto fail; | |
188 | ip->i_gl->gl_object = ip; | |
b3b94faa | 189 | |
dbb7cae2 | 190 | error = gfs2_glock_get(sdp, no_addr, &gfs2_iopen_glops, CREATE, &io_gl); |
feaa7bba SW |
191 | if (unlikely(error)) |
192 | goto fail_put; | |
b3b94faa | 193 | |
bfded27b | 194 | set_bit(GIF_INVALID, &ip->i_flags); |
feaa7bba SW |
195 | error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT, &ip->i_iopen_gh); |
196 | if (unlikely(error)) | |
197 | goto fail_iopen; | |
d93cfa98 | 198 | ip->i_iopen_gh.gh_gl->gl_object = ip; |
b3b94faa | 199 | |
feaa7bba | 200 | gfs2_glock_put(io_gl); |
b1becbde | 201 | io_gl = NULL; |
c8cdf479 | 202 | |
35dcc52e WC |
203 | if ((type == DT_UNKNOWN) && (no_formal_ino == 0)) |
204 | goto gfs2_nfsbypass; | |
205 | ||
206 | inode->i_mode = DT2IF(type); | |
207 | ||
c8cdf479 SW |
208 | /* |
209 | * We must read the inode in order to work out its type in | |
210 | * this case. Note that this doesn't happen often as we normally | |
211 | * know the type beforehand. This code path only occurs during | |
212 | * unlinked inode recovery (where it is safe to do this glock, | |
213 | * which is not true in the general case). | |
214 | */ | |
c8cdf479 SW |
215 | if (type == DT_UNKNOWN) { |
216 | struct gfs2_holder gh; | |
217 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh); | |
218 | if (unlikely(error)) | |
219 | goto fail_glock; | |
220 | /* Inode is now uptodate */ | |
c8cdf479 SW |
221 | gfs2_glock_dq_uninit(&gh); |
222 | } | |
223 | ||
35dcc52e | 224 | gfs2_set_iop(inode); |
feaa7bba | 225 | } |
b3b94faa | 226 | |
35dcc52e | 227 | gfs2_nfsbypass: |
b3b94faa | 228 | return inode; |
c8cdf479 SW |
229 | fail_glock: |
230 | gfs2_glock_dq(&ip->i_iopen_gh); | |
feaa7bba | 231 | fail_iopen: |
b1becbde BP |
232 | if (io_gl) |
233 | gfs2_glock_put(io_gl); | |
feaa7bba | 234 | fail_put: |
1a0eae88 BP |
235 | if (inode->i_state & I_NEW) |
236 | ip->i_gl->gl_object = NULL; | |
feaa7bba SW |
237 | gfs2_glock_put(ip->i_gl); |
238 | fail: | |
1a0eae88 BP |
239 | if (inode->i_state & I_NEW) |
240 | iget_failed(inode); | |
241 | else | |
242 | iput(inode); | |
feaa7bba | 243 | return ERR_PTR(error); |
b3b94faa DT |
244 | } |
245 | ||
1a0eae88 | 246 | /** |
ed4878e8 BP |
247 | * gfs2_process_unlinked_inode - Lookup an unlinked inode for reclamation |
248 | * and try to reclaim it by doing iput. | |
249 | * | |
250 | * This function assumes no rgrp locks are currently held. | |
251 | * | |
1a0eae88 BP |
252 | * @sb: The super block |
253 | * no_addr: The inode number | |
1a0eae88 | 254 | * |
1a0eae88 BP |
255 | */ |
256 | ||
ed4878e8 | 257 | void gfs2_process_unlinked_inode(struct super_block *sb, u64 no_addr) |
1a0eae88 BP |
258 | { |
259 | struct gfs2_sbd *sdp; | |
260 | struct gfs2_inode *ip; | |
b1becbde | 261 | struct gfs2_glock *io_gl = NULL; |
1a0eae88 BP |
262 | int error; |
263 | struct gfs2_holder gh; | |
ed4878e8 | 264 | struct inode *inode; |
1a0eae88 | 265 | |
ed4878e8 | 266 | inode = gfs2_iget_skip(sb, no_addr); |
1a0eae88 | 267 | |
ed4878e8 BP |
268 | if (!inode) |
269 | return; | |
1a0eae88 | 270 | |
ed4878e8 BP |
271 | /* If it's not a new inode, someone's using it, so leave it alone. */ |
272 | if (!(inode->i_state & I_NEW)) { | |
273 | iput(inode); | |
274 | return; | |
275 | } | |
1a0eae88 | 276 | |
ed4878e8 BP |
277 | ip = GFS2_I(inode); |
278 | sdp = GFS2_SB(inode); | |
1a0eae88 BP |
279 | ip->i_no_formal_ino = -1; |
280 | ||
281 | error = gfs2_glock_get(sdp, no_addr, &gfs2_inode_glops, CREATE, &ip->i_gl); | |
282 | if (unlikely(error)) | |
283 | goto fail; | |
284 | ip->i_gl->gl_object = ip; | |
285 | ||
286 | error = gfs2_glock_get(sdp, no_addr, &gfs2_iopen_glops, CREATE, &io_gl); | |
287 | if (unlikely(error)) | |
288 | goto fail_put; | |
289 | ||
290 | set_bit(GIF_INVALID, &ip->i_flags); | |
291 | error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, LM_FLAG_TRY | GL_EXACT, | |
292 | &ip->i_iopen_gh); | |
ed4878e8 | 293 | if (unlikely(error)) |
1a0eae88 | 294 | goto fail_iopen; |
ed4878e8 | 295 | |
1a0eae88 BP |
296 | ip->i_iopen_gh.gh_gl->gl_object = ip; |
297 | gfs2_glock_put(io_gl); | |
b1becbde | 298 | io_gl = NULL; |
1a0eae88 | 299 | |
ed4878e8 | 300 | inode->i_mode = DT2IF(DT_UNKNOWN); |
1a0eae88 BP |
301 | |
302 | /* | |
303 | * We must read the inode in order to work out its type in | |
304 | * this case. Note that this doesn't happen often as we normally | |
305 | * know the type beforehand. This code path only occurs during | |
306 | * unlinked inode recovery (where it is safe to do this glock, | |
307 | * which is not true in the general case). | |
308 | */ | |
309 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, LM_FLAG_TRY, | |
310 | &gh); | |
ed4878e8 | 311 | if (unlikely(error)) |
1a0eae88 | 312 | goto fail_glock; |
ed4878e8 | 313 | |
1a0eae88 BP |
314 | /* Inode is now uptodate */ |
315 | gfs2_glock_dq_uninit(&gh); | |
ed4878e8 BP |
316 | gfs2_set_iop(inode); |
317 | ||
318 | /* The iput will cause it to be deleted. */ | |
319 | iput(inode); | |
320 | return; | |
1a0eae88 | 321 | |
1a0eae88 BP |
322 | fail_glock: |
323 | gfs2_glock_dq(&ip->i_iopen_gh); | |
324 | fail_iopen: | |
b1becbde BP |
325 | if (io_gl) |
326 | gfs2_glock_put(io_gl); | |
1a0eae88 BP |
327 | fail_put: |
328 | ip->i_gl->gl_object = NULL; | |
329 | gfs2_glock_put(ip->i_gl); | |
330 | fail: | |
ed4878e8 BP |
331 | iget_failed(inode); |
332 | return; | |
1a0eae88 BP |
333 | } |
334 | ||
af339c02 | 335 | static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf) |
ea744d01 | 336 | { |
ea744d01 | 337 | const struct gfs2_dinode *str = buf; |
719ee344 | 338 | struct timespec atime; |
9a004508 | 339 | u16 height, depth; |
ea744d01 | 340 | |
ecc30c79 SW |
341 | if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr))) |
342 | goto corrupt; | |
dbb7cae2 | 343 | ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino); |
b60623c2 | 344 | ip->i_inode.i_mode = be32_to_cpu(str->di_mode); |
e7f14f4d | 345 | ip->i_inode.i_rdev = 0; |
b60623c2 | 346 | switch (ip->i_inode.i_mode & S_IFMT) { |
e7f14f4d SW |
347 | case S_IFBLK: |
348 | case S_IFCHR: | |
349 | ip->i_inode.i_rdev = MKDEV(be32_to_cpu(str->di_major), | |
350 | be32_to_cpu(str->di_minor)); | |
351 | break; | |
352 | }; | |
353 | ||
2933f925 SW |
354 | ip->i_inode.i_uid = be32_to_cpu(str->di_uid); |
355 | ip->i_inode.i_gid = be32_to_cpu(str->di_gid); | |
4f56110a SW |
356 | /* |
357 | * We will need to review setting the nlink count here in the | |
358 | * light of the forthcoming ro bind mount work. This is a reminder | |
359 | * to do that. | |
360 | */ | |
361 | ip->i_inode.i_nlink = be32_to_cpu(str->di_nlink); | |
c9e98886 SW |
362 | ip->i_disksize = be64_to_cpu(str->di_size); |
363 | i_size_write(&ip->i_inode, ip->i_disksize); | |
77658aad | 364 | gfs2_set_inode_blocks(&ip->i_inode, be64_to_cpu(str->di_blocks)); |
719ee344 SW |
365 | atime.tv_sec = be64_to_cpu(str->di_atime); |
366 | atime.tv_nsec = be32_to_cpu(str->di_atime_nsec); | |
367 | if (timespec_compare(&ip->i_inode.i_atime, &atime) < 0) | |
368 | ip->i_inode.i_atime = atime; | |
1a7b1eed | 369 | ip->i_inode.i_mtime.tv_sec = be64_to_cpu(str->di_mtime); |
4bd91ba1 | 370 | ip->i_inode.i_mtime.tv_nsec = be32_to_cpu(str->di_mtime_nsec); |
1a7b1eed | 371 | ip->i_inode.i_ctime.tv_sec = be64_to_cpu(str->di_ctime); |
4bd91ba1 | 372 | ip->i_inode.i_ctime.tv_nsec = be32_to_cpu(str->di_ctime_nsec); |
ea744d01 | 373 | |
ce276b06 | 374 | ip->i_goal = be64_to_cpu(str->di_goal_meta); |
bcf0b5b3 | 375 | ip->i_generation = be64_to_cpu(str->di_generation); |
ea744d01 | 376 | |
383f01fb | 377 | ip->i_diskflags = be32_to_cpu(str->di_flags); |
6b124d8d | 378 | gfs2_set_inode_flags(&ip->i_inode); |
ecc30c79 SW |
379 | height = be16_to_cpu(str->di_height); |
380 | if (unlikely(height > GFS2_MAX_META_HEIGHT)) | |
381 | goto corrupt; | |
382 | ip->i_height = (u8)height; | |
ea744d01 | 383 | |
9a004508 SW |
384 | depth = be16_to_cpu(str->di_depth); |
385 | if (unlikely(depth > GFS2_DIR_MAX_DEPTH)) | |
386 | goto corrupt; | |
387 | ip->i_depth = (u8)depth; | |
ad6203f2 | 388 | ip->i_entries = be32_to_cpu(str->di_entries); |
ea744d01 | 389 | |
3767ac21 | 390 | ip->i_eattr = be64_to_cpu(str->di_eattr); |
5561093e SW |
391 | if (S_ISREG(ip->i_inode.i_mode)) |
392 | gfs2_set_aops(&ip->i_inode); | |
393 | ||
af339c02 | 394 | return 0; |
ecc30c79 SW |
395 | corrupt: |
396 | if (gfs2_consist_inode(ip)) | |
397 | gfs2_dinode_print(ip); | |
398 | return -EIO; | |
ea744d01 SW |
399 | } |
400 | ||
b3b94faa DT |
401 | /** |
402 | * gfs2_inode_refresh - Refresh the incore copy of the dinode | |
403 | * @ip: The GFS2 inode | |
404 | * | |
405 | * Returns: errno | |
406 | */ | |
407 | ||
408 | int gfs2_inode_refresh(struct gfs2_inode *ip) | |
409 | { | |
410 | struct buffer_head *dibh; | |
411 | int error; | |
412 | ||
413 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
414 | if (error) | |
415 | return error; | |
416 | ||
feaa7bba | 417 | if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), dibh, GFS2_METATYPE_DI)) { |
b3b94faa DT |
418 | brelse(dibh); |
419 | return -EIO; | |
420 | } | |
421 | ||
af339c02 | 422 | error = gfs2_dinode_in(ip, dibh->b_data); |
b3b94faa | 423 | brelse(dibh); |
bfded27b | 424 | clear_bit(GIF_INVALID, &ip->i_flags); |
b3b94faa | 425 | |
af339c02 | 426 | return error; |
b3b94faa DT |
427 | } |
428 | ||
feaa7bba | 429 | int gfs2_dinode_dealloc(struct gfs2_inode *ip) |
b3b94faa | 430 | { |
feaa7bba | 431 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa DT |
432 | struct gfs2_alloc *al; |
433 | struct gfs2_rgrpd *rgd; | |
434 | int error; | |
435 | ||
77658aad | 436 | if (gfs2_get_inode_blocks(&ip->i_inode) != 1) { |
b3b94faa | 437 | if (gfs2_consist_inode(ip)) |
4cc14f0b | 438 | gfs2_dinode_print(ip); |
b3b94faa DT |
439 | return -EIO; |
440 | } | |
441 | ||
442 | al = gfs2_alloc_get(ip); | |
182fe5ab CG |
443 | if (!al) |
444 | return -ENOMEM; | |
b3b94faa DT |
445 | |
446 | error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); | |
447 | if (error) | |
448 | goto out; | |
449 | ||
450 | error = gfs2_rindex_hold(sdp, &al->al_ri_gh); | |
451 | if (error) | |
452 | goto out_qs; | |
453 | ||
dbb7cae2 | 454 | rgd = gfs2_blk2rgrpd(sdp, ip->i_no_addr); |
b3b94faa DT |
455 | if (!rgd) { |
456 | gfs2_consist_inode(ip); | |
457 | error = -EIO; | |
458 | goto out_rindex_relse; | |
459 | } | |
460 | ||
461 | error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, | |
462 | &al->al_rgd_gh); | |
463 | if (error) | |
464 | goto out_rindex_relse; | |
465 | ||
420b9e5e | 466 | error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_STATFS + RES_QUOTA, 1); |
b3b94faa DT |
467 | if (error) |
468 | goto out_rg_gunlock; | |
469 | ||
2bcd610d SW |
470 | set_bit(GLF_DIRTY, &ip->i_gl->gl_flags); |
471 | set_bit(GLF_LFLUSH, &ip->i_gl->gl_flags); | |
b3b94faa DT |
472 | |
473 | gfs2_free_di(rgd, ip); | |
474 | ||
b3b94faa | 475 | gfs2_trans_end(sdp); |
b3b94faa | 476 | |
feaa7bba | 477 | out_rg_gunlock: |
b3b94faa | 478 | gfs2_glock_dq_uninit(&al->al_rgd_gh); |
feaa7bba | 479 | out_rindex_relse: |
b3b94faa | 480 | gfs2_glock_dq_uninit(&al->al_ri_gh); |
feaa7bba | 481 | out_qs: |
b3b94faa | 482 | gfs2_quota_unhold(ip); |
36327521 | 483 | out: |
feaa7bba | 484 | gfs2_alloc_put(ip); |
b3b94faa DT |
485 | return error; |
486 | } | |
487 | ||
b3b94faa | 488 | /** |
87d21e07 | 489 | * gfs2_change_nlink - Change nlink count on inode |
b3b94faa DT |
490 | * @ip: The GFS2 inode |
491 | * @diff: The change in the nlink count required | |
492 | * | |
493 | * Returns: errno | |
494 | */ | |
87d21e07 | 495 | int gfs2_change_nlink(struct gfs2_inode *ip, int diff) |
b3b94faa DT |
496 | { |
497 | struct buffer_head *dibh; | |
cd915493 | 498 | u32 nlink; |
b3b94faa DT |
499 | int error; |
500 | ||
4f56110a SW |
501 | BUG_ON(diff != 1 && diff != -1); |
502 | nlink = ip->i_inode.i_nlink + diff; | |
b3b94faa DT |
503 | |
504 | /* If we are reducing the nlink count, but the new value ends up being | |
505 | bigger than the old one, we must have underflowed. */ | |
4f56110a | 506 | if (diff < 0 && nlink > ip->i_inode.i_nlink) { |
b3b94faa | 507 | if (gfs2_consist_inode(ip)) |
4cc14f0b | 508 | gfs2_dinode_print(ip); |
b3b94faa DT |
509 | return -EIO; |
510 | } | |
511 | ||
512 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
513 | if (error) | |
514 | return error; | |
515 | ||
4f56110a SW |
516 | if (diff > 0) |
517 | inc_nlink(&ip->i_inode); | |
518 | else | |
519 | drop_nlink(&ip->i_inode); | |
520 | ||
4bd91ba1 | 521 | ip->i_inode.i_ctime = CURRENT_TIME; |
b3b94faa | 522 | |
d4e9c4c3 | 523 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
539e5d6b | 524 | gfs2_dinode_out(ip, dibh->b_data); |
b3b94faa | 525 | brelse(dibh); |
feaa7bba | 526 | mark_inode_dirty(&ip->i_inode); |
b3b94faa | 527 | |
87d21e07 | 528 | if (ip->i_inode.i_nlink == 0) |
ddee7608 | 529 | gfs2_unlink_di(&ip->i_inode); /* mark inode unlinked */ |
87d21e07 | 530 | |
5509826f WC |
531 | return error; |
532 | } | |
533 | ||
c752666c SW |
534 | struct inode *gfs2_lookup_simple(struct inode *dip, const char *name) |
535 | { | |
536 | struct qstr qstr; | |
6c93fd1e | 537 | struct inode *inode; |
71b86f56 | 538 | gfs2_str2qstr(&qstr, name); |
a569c711 | 539 | inode = gfs2_lookupi(dip, &qstr, 1); |
6c93fd1e RC |
540 | /* gfs2_lookupi has inconsistent callers: vfs |
541 | * related routines expect NULL for no entry found, | |
542 | * gfs2_lookup_simple callers expect ENOENT | |
543 | * and do not check for NULL. | |
544 | */ | |
545 | if (inode == NULL) | |
546 | return ERR_PTR(-ENOENT); | |
547 | else | |
548 | return inode; | |
c752666c SW |
549 | } |
550 | ||
551 | ||
b3b94faa DT |
552 | /** |
553 | * gfs2_lookupi - Look up a filename in a directory and return its inode | |
554 | * @d_gh: An initialized holder for the directory glock | |
555 | * @name: The name of the inode to look for | |
556 | * @is_root: If 1, ignore the caller's permissions | |
557 | * @i_gh: An uninitialized holder for the new inode glock | |
558 | * | |
d7c103d0 SW |
559 | * This can be called via the VFS filldir function when NFS is doing |
560 | * a readdirplus and the inode which its intending to stat isn't | |
561 | * already in cache. In this case we must not take the directory glock | |
562 | * again, since the readdir call will have already taken that lock. | |
b3b94faa DT |
563 | * |
564 | * Returns: errno | |
565 | */ | |
566 | ||
feaa7bba | 567 | struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name, |
a569c711 | 568 | int is_root) |
b3b94faa | 569 | { |
c9fd4307 | 570 | struct super_block *sb = dir->i_sb; |
feaa7bba | 571 | struct gfs2_inode *dip = GFS2_I(dir); |
b3b94faa | 572 | struct gfs2_holder d_gh; |
037bcbb7 | 573 | int error = 0; |
c752666c | 574 | struct inode *inode = NULL; |
d7c103d0 | 575 | int unlock = 0; |
b3b94faa DT |
576 | |
577 | if (!name->len || name->len > GFS2_FNAMESIZE) | |
c752666c | 578 | return ERR_PTR(-ENAMETOOLONG); |
b3b94faa | 579 | |
c752666c SW |
580 | if ((name->len == 1 && memcmp(name->name, ".", 1) == 0) || |
581 | (name->len == 2 && memcmp(name->name, "..", 2) == 0 && | |
582 | dir == sb->s_root->d_inode)) { | |
320dd101 SW |
583 | igrab(dir); |
584 | return dir; | |
b3b94faa DT |
585 | } |
586 | ||
7afd88d9 | 587 | if (gfs2_glock_is_locked_by_me(dip->i_gl) == NULL) { |
d7c103d0 SW |
588 | error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, &d_gh); |
589 | if (error) | |
590 | return ERR_PTR(error); | |
591 | unlock = 1; | |
592 | } | |
b3b94faa DT |
593 | |
594 | if (!is_root) { | |
f58ba889 | 595 | error = gfs2_permission(dir, MAY_EXEC); |
b3b94faa DT |
596 | if (error) |
597 | goto out; | |
598 | } | |
599 | ||
dbb7cae2 SW |
600 | inode = gfs2_dir_search(dir, name); |
601 | if (IS_ERR(inode)) | |
602 | error = PTR_ERR(inode); | |
7359a19c | 603 | out: |
d7c103d0 SW |
604 | if (unlock) |
605 | gfs2_glock_dq_uninit(&d_gh); | |
c752666c SW |
606 | if (error == -ENOENT) |
607 | return NULL; | |
d7c103d0 | 608 | return inode ? inode : ERR_PTR(error); |
b3b94faa DT |
609 | } |
610 | ||
b3b94faa DT |
611 | /** |
612 | * create_ok - OK to create a new on-disk inode here? | |
613 | * @dip: Directory in which dinode is to be created | |
614 | * @name: Name of new dinode | |
615 | * @mode: | |
616 | * | |
617 | * Returns: errno | |
618 | */ | |
619 | ||
feaa7bba | 620 | static int create_ok(struct gfs2_inode *dip, const struct qstr *name, |
b3b94faa DT |
621 | unsigned int mode) |
622 | { | |
623 | int error; | |
624 | ||
f58ba889 | 625 | error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC); |
b3b94faa DT |
626 | if (error) |
627 | return error; | |
628 | ||
629 | /* Don't create entries in an unlinked directory */ | |
4f56110a | 630 | if (!dip->i_inode.i_nlink) |
b3b94faa DT |
631 | return -EPERM; |
632 | ||
dbb7cae2 | 633 | error = gfs2_dir_check(&dip->i_inode, name, NULL); |
b3b94faa DT |
634 | switch (error) { |
635 | case -ENOENT: | |
636 | error = 0; | |
637 | break; | |
638 | case 0: | |
639 | return -EEXIST; | |
640 | default: | |
641 | return error; | |
642 | } | |
643 | ||
ad6203f2 | 644 | if (dip->i_entries == (u32)-1) |
b3b94faa | 645 | return -EFBIG; |
4f56110a | 646 | if (S_ISDIR(mode) && dip->i_inode.i_nlink == (u32)-1) |
b3b94faa DT |
647 | return -EMLINK; |
648 | ||
649 | return 0; | |
650 | } | |
651 | ||
652 | static void munge_mode_uid_gid(struct gfs2_inode *dip, unsigned int *mode, | |
653 | unsigned int *uid, unsigned int *gid) | |
654 | { | |
feaa7bba | 655 | if (GFS2_SB(&dip->i_inode)->sd_args.ar_suiddir && |
2933f925 | 656 | (dip->i_inode.i_mode & S_ISUID) && dip->i_inode.i_uid) { |
b3b94faa DT |
657 | if (S_ISDIR(*mode)) |
658 | *mode |= S_ISUID; | |
3de7be33 | 659 | else if (dip->i_inode.i_uid != current_fsuid()) |
b3b94faa | 660 | *mode &= ~07111; |
2933f925 | 661 | *uid = dip->i_inode.i_uid; |
b3b94faa | 662 | } else |
3de7be33 | 663 | *uid = current_fsuid(); |
b3b94faa | 664 | |
b60623c2 | 665 | if (dip->i_inode.i_mode & S_ISGID) { |
b3b94faa DT |
666 | if (S_ISDIR(*mode)) |
667 | *mode |= S_ISGID; | |
2933f925 | 668 | *gid = dip->i_inode.i_gid; |
b3b94faa | 669 | } else |
3de7be33 | 670 | *gid = current_fsgid(); |
b3b94faa DT |
671 | } |
672 | ||
dbb7cae2 | 673 | static int alloc_dinode(struct gfs2_inode *dip, u64 *no_addr, u64 *generation) |
b3b94faa | 674 | { |
feaa7bba | 675 | struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); |
b3b94faa DT |
676 | int error; |
677 | ||
6dbd8224 SW |
678 | if (gfs2_alloc_get(dip) == NULL) |
679 | return -ENOMEM; | |
b3b94faa | 680 | |
6dbd8224 | 681 | dip->i_alloc->al_requested = RES_DINODE; |
b3b94faa DT |
682 | error = gfs2_inplace_reserve(dip); |
683 | if (error) | |
684 | goto out; | |
685 | ||
feaa7bba | 686 | error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_STATFS, 0); |
b3b94faa DT |
687 | if (error) |
688 | goto out_ipreserv; | |
689 | ||
6050b9c7 | 690 | error = gfs2_alloc_di(dip, no_addr, generation); |
b3b94faa DT |
691 | |
692 | gfs2_trans_end(sdp); | |
693 | ||
4340fe62 | 694 | out_ipreserv: |
b3b94faa | 695 | gfs2_inplace_release(dip); |
4340fe62 | 696 | out: |
b3b94faa | 697 | gfs2_alloc_put(dip); |
b3b94faa DT |
698 | return error; |
699 | } | |
700 | ||
701 | /** | |
702 | * init_dinode - Fill in a new dinode structure | |
703 | * @dip: the directory this inode is being created in | |
704 | * @gl: The glock covering the new inode | |
705 | * @inum: the inode number | |
706 | * @mode: the file permissions | |
707 | * @uid: | |
708 | * @gid: | |
709 | * | |
710 | */ | |
711 | ||
712 | static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl, | |
629a21e7 | 713 | const struct gfs2_inum_host *inum, unsigned int mode, |
4340fe62 | 714 | unsigned int uid, unsigned int gid, |
e9bd2b3b | 715 | const u64 *generation, dev_t dev, struct buffer_head **bhp) |
b3b94faa | 716 | { |
feaa7bba | 717 | struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); |
b96ca4fa | 718 | struct gfs2_dinode *di; |
b3b94faa | 719 | struct buffer_head *dibh; |
4bd91ba1 | 720 | struct timespec tv = CURRENT_TIME; |
b3b94faa DT |
721 | |
722 | dibh = gfs2_meta_new(gl, inum->no_addr); | |
d4e9c4c3 | 723 | gfs2_trans_add_bh(gl, dibh, 1); |
b3b94faa DT |
724 | gfs2_metatype_set(dibh, GFS2_METATYPE_DI, GFS2_FORMAT_DI); |
725 | gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode)); | |
b96ca4fa SW |
726 | di = (struct gfs2_dinode *)dibh->b_data; |
727 | ||
2442a098 SW |
728 | di->di_num.no_formal_ino = cpu_to_be64(inum->no_formal_ino); |
729 | di->di_num.no_addr = cpu_to_be64(inum->no_addr); | |
b96ca4fa SW |
730 | di->di_mode = cpu_to_be32(mode); |
731 | di->di_uid = cpu_to_be32(uid); | |
732 | di->di_gid = cpu_to_be32(gid); | |
294caaa3 SW |
733 | di->di_nlink = 0; |
734 | di->di_size = 0; | |
b96ca4fa | 735 | di->di_blocks = cpu_to_be64(1); |
4bd91ba1 | 736 | di->di_atime = di->di_mtime = di->di_ctime = cpu_to_be64(tv.tv_sec); |
e7f14f4d SW |
737 | di->di_major = cpu_to_be32(MAJOR(dev)); |
738 | di->di_minor = cpu_to_be32(MINOR(dev)); | |
b96ca4fa | 739 | di->di_goal_meta = di->di_goal_data = cpu_to_be64(inum->no_addr); |
4340fe62 | 740 | di->di_generation = cpu_to_be64(*generation); |
294caaa3 | 741 | di->di_flags = 0; |
b3b94faa DT |
742 | |
743 | if (S_ISREG(mode)) { | |
383f01fb | 744 | if ((dip->i_diskflags & GFS2_DIF_INHERIT_JDATA) || |
b3b94faa | 745 | gfs2_tune_get(sdp, gt_new_files_jdata)) |
b96ca4fa | 746 | di->di_flags |= cpu_to_be32(GFS2_DIF_JDATA); |
b3b94faa | 747 | } else if (S_ISDIR(mode)) { |
383f01fb | 748 | di->di_flags |= cpu_to_be32(dip->i_diskflags & |
568f4c96 | 749 | GFS2_DIF_INHERIT_JDATA); |
b3b94faa DT |
750 | } |
751 | ||
b96ca4fa | 752 | di->__pad1 = 0; |
a9583c79 | 753 | di->di_payload_format = cpu_to_be32(S_ISDIR(mode) ? GFS2_FORMAT_DE : 0); |
294caaa3 | 754 | di->di_height = 0; |
b96ca4fa SW |
755 | di->__pad2 = 0; |
756 | di->__pad3 = 0; | |
294caaa3 SW |
757 | di->di_depth = 0; |
758 | di->di_entries = 0; | |
b96ca4fa | 759 | memset(&di->__pad4, 0, sizeof(di->__pad4)); |
294caaa3 | 760 | di->di_eattr = 0; |
4bd91ba1 SW |
761 | di->di_atime_nsec = cpu_to_be32(tv.tv_nsec); |
762 | di->di_mtime_nsec = cpu_to_be32(tv.tv_nsec); | |
763 | di->di_ctime_nsec = cpu_to_be32(tv.tv_nsec); | |
b96ca4fa | 764 | memset(&di->di_reserved, 0, sizeof(di->di_reserved)); |
e9bd2b3b WC |
765 | |
766 | set_buffer_uptodate(dibh); | |
b96ca4fa | 767 | |
e9bd2b3b | 768 | *bhp = dibh; |
b3b94faa DT |
769 | } |
770 | ||
771 | static int make_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl, | |
629a21e7 | 772 | unsigned int mode, const struct gfs2_inum_host *inum, |
e9bd2b3b | 773 | const u64 *generation, dev_t dev, struct buffer_head **bhp) |
b3b94faa | 774 | { |
feaa7bba | 775 | struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); |
b3b94faa DT |
776 | unsigned int uid, gid; |
777 | int error; | |
778 | ||
779 | munge_mode_uid_gid(dip, &mode, &uid, &gid); | |
182fe5ab CG |
780 | if (!gfs2_alloc_get(dip)) |
781 | return -ENOMEM; | |
b3b94faa DT |
782 | |
783 | error = gfs2_quota_lock(dip, uid, gid); | |
784 | if (error) | |
785 | goto out; | |
786 | ||
787 | error = gfs2_quota_check(dip, uid, gid); | |
788 | if (error) | |
789 | goto out_quota; | |
790 | ||
feaa7bba | 791 | error = gfs2_trans_begin(sdp, RES_DINODE + RES_QUOTA, 0); |
b3b94faa DT |
792 | if (error) |
793 | goto out_quota; | |
794 | ||
e9bd2b3b | 795 | init_dinode(dip, gl, inum, mode, uid, gid, generation, dev, bhp); |
b3b94faa | 796 | gfs2_quota_change(dip, +1, uid, gid); |
b3b94faa DT |
797 | gfs2_trans_end(sdp); |
798 | ||
feaa7bba | 799 | out_quota: |
b3b94faa | 800 | gfs2_quota_unlock(dip); |
feaa7bba | 801 | out: |
b3b94faa | 802 | gfs2_alloc_put(dip); |
b3b94faa DT |
803 | return error; |
804 | } | |
805 | ||
feaa7bba SW |
806 | static int link_dinode(struct gfs2_inode *dip, const struct qstr *name, |
807 | struct gfs2_inode *ip) | |
b3b94faa | 808 | { |
feaa7bba | 809 | struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); |
b3b94faa DT |
810 | struct gfs2_alloc *al; |
811 | int alloc_required; | |
812 | struct buffer_head *dibh; | |
813 | int error; | |
814 | ||
815 | al = gfs2_alloc_get(dip); | |
182fe5ab CG |
816 | if (!al) |
817 | return -ENOMEM; | |
b3b94faa DT |
818 | |
819 | error = gfs2_quota_lock(dip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); | |
820 | if (error) | |
821 | goto fail; | |
822 | ||
feaa7bba | 823 | error = alloc_required = gfs2_diradd_alloc_required(&dip->i_inode, name); |
c752666c | 824 | if (alloc_required < 0) |
1b8177ec | 825 | goto fail_quota_locks; |
b3b94faa | 826 | if (alloc_required) { |
2933f925 | 827 | error = gfs2_quota_check(dip, dip->i_inode.i_uid, dip->i_inode.i_gid); |
b3b94faa DT |
828 | if (error) |
829 | goto fail_quota_locks; | |
830 | ||
831 | al->al_requested = sdp->sd_max_dirres; | |
832 | ||
833 | error = gfs2_inplace_reserve(dip); | |
834 | if (error) | |
835 | goto fail_quota_locks; | |
836 | ||
320dd101 | 837 | error = gfs2_trans_begin(sdp, sdp->sd_max_dirres + |
bb8d8a6f | 838 | al->al_rgd->rd_length + |
907b9bce | 839 | 2 * RES_DINODE + |
b3b94faa DT |
840 | RES_STATFS + RES_QUOTA, 0); |
841 | if (error) | |
842 | goto fail_ipreserv; | |
843 | } else { | |
feaa7bba | 844 | error = gfs2_trans_begin(sdp, RES_LEAF + 2 * RES_DINODE, 0); |
b3b94faa DT |
845 | if (error) |
846 | goto fail_quota_locks; | |
847 | } | |
848 | ||
dbb7cae2 | 849 | error = gfs2_dir_add(&dip->i_inode, name, ip, IF2DT(ip->i_inode.i_mode)); |
b3b94faa DT |
850 | if (error) |
851 | goto fail_end_trans; | |
852 | ||
853 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
854 | if (error) | |
855 | goto fail_end_trans; | |
4f56110a | 856 | ip->i_inode.i_nlink = 1; |
d4e9c4c3 | 857 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
539e5d6b | 858 | gfs2_dinode_out(ip, dibh->b_data); |
b3b94faa | 859 | brelse(dibh); |
b3b94faa DT |
860 | return 0; |
861 | ||
320dd101 | 862 | fail_end_trans: |
b3b94faa DT |
863 | gfs2_trans_end(sdp); |
864 | ||
320dd101 | 865 | fail_ipreserv: |
6dbd8224 | 866 | if (dip->i_alloc->al_rgd) |
b3b94faa DT |
867 | gfs2_inplace_release(dip); |
868 | ||
320dd101 | 869 | fail_quota_locks: |
b3b94faa DT |
870 | gfs2_quota_unlock(dip); |
871 | ||
320dd101 | 872 | fail: |
b3b94faa | 873 | gfs2_alloc_put(dip); |
b3b94faa DT |
874 | return error; |
875 | } | |
876 | ||
fcb47e0b RH |
877 | static int gfs2_security_init(struct gfs2_inode *dip, struct gfs2_inode *ip) |
878 | { | |
879 | int err; | |
880 | size_t len; | |
881 | void *value; | |
882 | char *name; | |
fcb47e0b RH |
883 | |
884 | err = security_inode_init_security(&ip->i_inode, &dip->i_inode, | |
885 | &name, &value, &len); | |
886 | ||
887 | if (err) { | |
888 | if (err == -EOPNOTSUPP) | |
889 | return 0; | |
890 | return err; | |
891 | } | |
892 | ||
431547b3 CH |
893 | err = __gfs2_xattr_set(&ip->i_inode, name, value, len, 0, |
894 | GFS2_EATYPE_SECURITY); | |
fcb47e0b RH |
895 | kfree(value); |
896 | kfree(name); | |
897 | ||
898 | return err; | |
899 | } | |
900 | ||
b3b94faa DT |
901 | /** |
902 | * gfs2_createi - Create a new inode | |
903 | * @ghs: An array of two holders | |
904 | * @name: The name of the new file | |
905 | * @mode: the permissions on the new inode | |
906 | * | |
907 | * @ghs[0] is an initialized holder for the directory | |
908 | * @ghs[1] is the holder for the inode lock | |
909 | * | |
7359a19c | 910 | * If the return value is not NULL, the glocks on both the directory and the new |
b3b94faa DT |
911 | * file are held. A transaction has been started and an inplace reservation |
912 | * is held, as well. | |
913 | * | |
7359a19c | 914 | * Returns: An inode |
b3b94faa DT |
915 | */ |
916 | ||
feaa7bba | 917 | struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name, |
e7f14f4d | 918 | unsigned int mode, dev_t dev) |
b3b94faa | 919 | { |
e1cc8603 | 920 | struct inode *inode = NULL; |
5c676f6d | 921 | struct gfs2_inode *dip = ghs->gh_gl->gl_object; |
feaa7bba SW |
922 | struct inode *dir = &dip->i_inode; |
923 | struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); | |
dbb7cae2 | 924 | struct gfs2_inum_host inum = { .no_addr = 0, .no_formal_ino = 0 }; |
b3b94faa | 925 | int error; |
4340fe62 | 926 | u64 generation; |
f91a0d3e | 927 | struct buffer_head *bh = NULL; |
b3b94faa DT |
928 | |
929 | if (!name->len || name->len > GFS2_FNAMESIZE) | |
7359a19c | 930 | return ERR_PTR(-ENAMETOOLONG); |
b3b94faa | 931 | |
b3b94faa DT |
932 | gfs2_holder_reinit(LM_ST_EXCLUSIVE, 0, ghs); |
933 | error = gfs2_glock_nq(ghs); | |
934 | if (error) | |
935 | goto fail; | |
936 | ||
937 | error = create_ok(dip, name, mode); | |
938 | if (error) | |
939 | goto fail_gunlock; | |
940 | ||
dbb7cae2 | 941 | error = alloc_dinode(dip, &inum.no_addr, &generation); |
b3b94faa DT |
942 | if (error) |
943 | goto fail_gunlock; | |
8d8291ae | 944 | inum.no_formal_ino = generation; |
b3b94faa | 945 | |
28626e20 SW |
946 | error = gfs2_glock_nq_num(sdp, inum.no_addr, &gfs2_inode_glops, |
947 | LM_ST_EXCLUSIVE, GL_SKIP, ghs + 1); | |
948 | if (error) | |
949 | goto fail_gunlock; | |
b3b94faa | 950 | |
e9bd2b3b | 951 | error = make_dinode(dip, ghs[1].gh_gl, mode, &inum, &generation, dev, &bh); |
b3b94faa DT |
952 | if (error) |
953 | goto fail_gunlock2; | |
954 | ||
8d8291ae | 955 | inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode), inum.no_addr, |
1a0eae88 | 956 | inum.no_formal_ino); |
feaa7bba | 957 | if (IS_ERR(inode)) |
b3b94faa DT |
958 | goto fail_gunlock2; |
959 | ||
feaa7bba | 960 | error = gfs2_inode_refresh(GFS2_I(inode)); |
b3b94faa | 961 | if (error) |
e1cc8603 | 962 | goto fail_gunlock2; |
b3b94faa | 963 | |
479c427d | 964 | error = gfs2_acl_create(dip, inode); |
b3b94faa | 965 | if (error) |
e1cc8603 | 966 | goto fail_gunlock2; |
b3b94faa | 967 | |
fcb47e0b RH |
968 | error = gfs2_security_init(dip, GFS2_I(inode)); |
969 | if (error) | |
e1cc8603 | 970 | goto fail_gunlock2; |
fcb47e0b | 971 | |
feaa7bba | 972 | error = link_dinode(dip, name, GFS2_I(inode)); |
b3b94faa | 973 | if (error) |
e1cc8603 | 974 | goto fail_gunlock2; |
b3b94faa | 975 | |
f91a0d3e SW |
976 | if (bh) |
977 | brelse(bh); | |
7359a19c | 978 | return inode; |
b3b94faa | 979 | |
320dd101 | 980 | fail_gunlock2: |
b3b94faa | 981 | gfs2_glock_dq_uninit(ghs + 1); |
bd1eb881 | 982 | if (inode && !IS_ERR(inode)) |
e1cc8603 | 983 | iput(inode); |
320dd101 | 984 | fail_gunlock: |
b3b94faa | 985 | gfs2_glock_dq(ghs); |
320dd101 | 986 | fail: |
f91a0d3e SW |
987 | if (bh) |
988 | brelse(bh); | |
7359a19c | 989 | return ERR_PTR(error); |
b3b94faa DT |
990 | } |
991 | ||
536baf02 | 992 | static int __gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr) |
b3b94faa | 993 | { |
1025774c | 994 | struct inode *inode = &ip->i_inode; |
b3b94faa DT |
995 | struct buffer_head *dibh; |
996 | int error; | |
997 | ||
998 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
1025774c CH |
999 | if (error) |
1000 | return error; | |
1001 | ||
1002 | if ((attr->ia_valid & ATTR_SIZE) && | |
1003 | attr->ia_size != i_size_read(inode)) { | |
1004 | error = vmtruncate(inode, attr->ia_size); | |
1005 | if (error) | |
1006 | return error; | |
b3b94faa | 1007 | } |
1025774c CH |
1008 | |
1009 | setattr_copy(inode, attr); | |
1010 | mark_inode_dirty(inode); | |
1011 | ||
1012 | gfs2_assert_warn(GFS2_SB(inode), !error); | |
1013 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); | |
1014 | gfs2_dinode_out(ip, dibh->b_data); | |
1015 | brelse(dibh); | |
1016 | return 0; | |
b3b94faa DT |
1017 | } |
1018 | ||
1019 | /** | |
1020 | * gfs2_setattr_simple - | |
1021 | * @ip: | |
1022 | * @attr: | |
1023 | * | |
1024 | * Called with a reference on the vnode. | |
1025 | * | |
1026 | * Returns: errno | |
1027 | */ | |
1028 | ||
1029 | int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr) | |
1030 | { | |
1031 | int error; | |
1032 | ||
5c676f6d | 1033 | if (current->journal_info) |
b3b94faa DT |
1034 | return __gfs2_setattr_simple(ip, attr); |
1035 | ||
feaa7bba | 1036 | error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE, 0); |
b3b94faa DT |
1037 | if (error) |
1038 | return error; | |
1039 | ||
1040 | error = __gfs2_setattr_simple(ip, attr); | |
feaa7bba | 1041 | gfs2_trans_end(GFS2_SB(&ip->i_inode)); |
b3b94faa DT |
1042 | return error; |
1043 | } | |
1044 | ||
bb8d8a6f SW |
1045 | void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf) |
1046 | { | |
bb8d8a6f SW |
1047 | struct gfs2_dinode *str = buf; |
1048 | ||
1049 | str->di_header.mh_magic = cpu_to_be32(GFS2_MAGIC); | |
1050 | str->di_header.mh_type = cpu_to_be32(GFS2_METATYPE_DI); | |
bb8d8a6f | 1051 | str->di_header.mh_format = cpu_to_be32(GFS2_FORMAT_DI); |
bb8d8a6f SW |
1052 | str->di_num.no_addr = cpu_to_be64(ip->i_no_addr); |
1053 | str->di_num.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino); | |
1054 | str->di_mode = cpu_to_be32(ip->i_inode.i_mode); | |
1055 | str->di_uid = cpu_to_be32(ip->i_inode.i_uid); | |
1056 | str->di_gid = cpu_to_be32(ip->i_inode.i_gid); | |
1057 | str->di_nlink = cpu_to_be32(ip->i_inode.i_nlink); | |
c9e98886 | 1058 | str->di_size = cpu_to_be64(ip->i_disksize); |
77658aad | 1059 | str->di_blocks = cpu_to_be64(gfs2_get_inode_blocks(&ip->i_inode)); |
bb8d8a6f SW |
1060 | str->di_atime = cpu_to_be64(ip->i_inode.i_atime.tv_sec); |
1061 | str->di_mtime = cpu_to_be64(ip->i_inode.i_mtime.tv_sec); | |
1062 | str->di_ctime = cpu_to_be64(ip->i_inode.i_ctime.tv_sec); | |
1063 | ||
ce276b06 SW |
1064 | str->di_goal_meta = cpu_to_be64(ip->i_goal); |
1065 | str->di_goal_data = cpu_to_be64(ip->i_goal); | |
bcf0b5b3 | 1066 | str->di_generation = cpu_to_be64(ip->i_generation); |
bb8d8a6f | 1067 | |
383f01fb | 1068 | str->di_flags = cpu_to_be32(ip->i_diskflags); |
ecc30c79 | 1069 | str->di_height = cpu_to_be16(ip->i_height); |
bb8d8a6f | 1070 | str->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) && |
383f01fb | 1071 | !(ip->i_diskflags & GFS2_DIF_EXHASH) ? |
bb8d8a6f | 1072 | GFS2_FORMAT_DE : 0); |
9a004508 | 1073 | str->di_depth = cpu_to_be16(ip->i_depth); |
ad6203f2 | 1074 | str->di_entries = cpu_to_be32(ip->i_entries); |
bb8d8a6f | 1075 | |
3767ac21 | 1076 | str->di_eattr = cpu_to_be64(ip->i_eattr); |
4bd91ba1 SW |
1077 | str->di_atime_nsec = cpu_to_be32(ip->i_inode.i_atime.tv_nsec); |
1078 | str->di_mtime_nsec = cpu_to_be32(ip->i_inode.i_mtime.tv_nsec); | |
1079 | str->di_ctime_nsec = cpu_to_be32(ip->i_inode.i_ctime.tv_nsec); | |
bb8d8a6f SW |
1080 | } |
1081 | ||
1082 | void gfs2_dinode_print(const struct gfs2_inode *ip) | |
1083 | { | |
bb8d8a6f SW |
1084 | printk(KERN_INFO " no_formal_ino = %llu\n", |
1085 | (unsigned long long)ip->i_no_formal_ino); | |
1086 | printk(KERN_INFO " no_addr = %llu\n", | |
1087 | (unsigned long long)ip->i_no_addr); | |
c9e98886 SW |
1088 | printk(KERN_INFO " i_disksize = %llu\n", |
1089 | (unsigned long long)ip->i_disksize); | |
77658aad SW |
1090 | printk(KERN_INFO " blocks = %llu\n", |
1091 | (unsigned long long)gfs2_get_inode_blocks(&ip->i_inode)); | |
ce276b06 SW |
1092 | printk(KERN_INFO " i_goal = %llu\n", |
1093 | (unsigned long long)ip->i_goal); | |
383f01fb | 1094 | printk(KERN_INFO " i_diskflags = 0x%.8X\n", ip->i_diskflags); |
ca390601 | 1095 | printk(KERN_INFO " i_height = %u\n", ip->i_height); |
9a004508 | 1096 | printk(KERN_INFO " i_depth = %u\n", ip->i_depth); |
ad6203f2 | 1097 | printk(KERN_INFO " i_entries = %u\n", ip->i_entries); |
3767ac21 SW |
1098 | printk(KERN_INFO " i_eattr = %llu\n", |
1099 | (unsigned long long)ip->i_eattr); | |
bb8d8a6f SW |
1100 | } |
1101 |