Commit | Line | Data |
---|---|---|
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 | |
091806ed | 48 | if (ip->i_no_addr == *no_addr && test_bit(GIF_USER, &ip->i_flags)) |
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; | |
091806ed | 61 | set_bit(GIF_USER, &ip->i_flags); |
feaa7bba SW |
62 | return 0; |
63 | } | |
b3b94faa | 64 | |
dbb7cae2 | 65 | struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr) |
feaa7bba | 66 | { |
dbb7cae2 SW |
67 | unsigned long hash = (unsigned long)no_addr; |
68 | return ilookup5(sb, hash, iget_test, &no_addr); | |
feaa7bba | 69 | } |
b3b94faa | 70 | |
dbb7cae2 | 71 | static struct inode *gfs2_iget(struct super_block *sb, u64 no_addr) |
feaa7bba | 72 | { |
dbb7cae2 SW |
73 | unsigned long hash = (unsigned long)no_addr; |
74 | return iget5_locked(sb, hash, iget_test, iget_set, &no_addr); | |
b3b94faa DT |
75 | } |
76 | ||
7a9f53b3 BM |
77 | struct gfs2_skip_data { |
78 | u64 no_addr; | |
79 | int skipped; | |
80 | }; | |
81 | ||
82 | static int iget_skip_test(struct inode *inode, void *opaque) | |
83 | { | |
84 | struct gfs2_inode *ip = GFS2_I(inode); | |
85 | struct gfs2_skip_data *data = opaque; | |
86 | ||
091806ed | 87 | if (ip->i_no_addr == data->no_addr && test_bit(GIF_USER, &ip->i_flags)){ |
7a9f53b3 BM |
88 | if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE)){ |
89 | data->skipped = 1; | |
90 | return 0; | |
91 | } | |
92 | return 1; | |
93 | } | |
94 | return 0; | |
95 | } | |
96 | ||
97 | static int iget_skip_set(struct inode *inode, void *opaque) | |
98 | { | |
99 | struct gfs2_inode *ip = GFS2_I(inode); | |
100 | struct gfs2_skip_data *data = opaque; | |
101 | ||
102 | if (data->skipped) | |
103 | return 1; | |
104 | inode->i_ino = (unsigned long)(data->no_addr); | |
105 | ip->i_no_addr = data->no_addr; | |
091806ed | 106 | set_bit(GIF_USER, &ip->i_flags); |
7a9f53b3 BM |
107 | return 0; |
108 | } | |
109 | ||
110 | static struct inode *gfs2_iget_skip(struct super_block *sb, | |
111 | u64 no_addr) | |
112 | { | |
113 | struct gfs2_skip_data data; | |
114 | unsigned long hash = (unsigned long)no_addr; | |
115 | ||
116 | data.no_addr = no_addr; | |
117 | data.skipped = 0; | |
118 | return iget5_locked(sb, hash, iget_skip_test, iget_skip_set, &data); | |
119 | } | |
120 | ||
35dcc52e WC |
121 | /** |
122 | * GFS2 lookup code fills in vfs inode contents based on info obtained | |
123 | * from directory entry inside gfs2_inode_lookup(). This has caused issues | |
124 | * with NFS code path since its get_dentry routine doesn't have the relevant | |
125 | * directory entry when gfs2_inode_lookup() is invoked. Part of the code | |
126 | * segment inside gfs2_inode_lookup code needs to get moved around. | |
127 | * | |
eaff8079 | 128 | * Clears I_NEW as well. |
35dcc52e WC |
129 | **/ |
130 | ||
131 | void gfs2_set_iop(struct inode *inode) | |
132 | { | |
c97bfe43 | 133 | struct gfs2_sbd *sdp = GFS2_SB(inode); |
35dcc52e WC |
134 | umode_t mode = inode->i_mode; |
135 | ||
136 | if (S_ISREG(mode)) { | |
137 | inode->i_op = &gfs2_file_iops; | |
f057f6cd | 138 | if (gfs2_localflocks(sdp)) |
10d21988 | 139 | inode->i_fop = &gfs2_file_fops_nolock; |
c97bfe43 | 140 | else |
10d21988 | 141 | inode->i_fop = &gfs2_file_fops; |
35dcc52e WC |
142 | } else if (S_ISDIR(mode)) { |
143 | inode->i_op = &gfs2_dir_iops; | |
f057f6cd | 144 | if (gfs2_localflocks(sdp)) |
10d21988 | 145 | inode->i_fop = &gfs2_dir_fops_nolock; |
c97bfe43 | 146 | else |
10d21988 | 147 | inode->i_fop = &gfs2_dir_fops; |
35dcc52e WC |
148 | } else if (S_ISLNK(mode)) { |
149 | inode->i_op = &gfs2_symlink_iops; | |
150 | } else { | |
d83225d4 | 151 | inode->i_op = &gfs2_file_iops; |
43a33c53 | 152 | init_special_inode(inode, inode->i_mode, inode->i_rdev); |
35dcc52e WC |
153 | } |
154 | ||
155 | unlock_new_inode(inode); | |
156 | } | |
157 | ||
b3b94faa | 158 | /** |
feaa7bba SW |
159 | * gfs2_inode_lookup - Lookup an inode |
160 | * @sb: The super block | |
dbb7cae2 | 161 | * @no_addr: The inode number |
feaa7bba | 162 | * @type: The type of the inode |
7a9f53b3 | 163 | * @skip_freeing: set this not return an inode if it is currently being freed. |
b3b94faa | 164 | * |
feaa7bba | 165 | * Returns: A VFS inode, or an error |
b3b94faa DT |
166 | */ |
167 | ||
091806ed | 168 | struct inode *gfs2_inode_lookup(struct super_block *sb, |
bb9bcf06 WC |
169 | unsigned int type, |
170 | u64 no_addr, | |
7a9f53b3 | 171 | u64 no_formal_ino, int skip_freeing) |
b3b94faa | 172 | { |
7a9f53b3 BM |
173 | struct inode *inode; |
174 | struct gfs2_inode *ip; | |
feaa7bba SW |
175 | struct gfs2_glock *io_gl; |
176 | int error; | |
b3b94faa | 177 | |
7a9f53b3 BM |
178 | if (skip_freeing) |
179 | inode = gfs2_iget_skip(sb, no_addr); | |
180 | else | |
181 | inode = gfs2_iget(sb, no_addr); | |
182 | ip = GFS2_I(inode); | |
183 | ||
26d83ded SW |
184 | if (!inode) |
185 | return ERR_PTR(-ENOBUFS); | |
186 | ||
feaa7bba SW |
187 | if (inode->i_state & I_NEW) { |
188 | struct gfs2_sbd *sdp = GFS2_SB(inode); | |
bb9bcf06 | 189 | ip->i_no_formal_ino = no_formal_ino; |
b3b94faa | 190 | |
dbb7cae2 | 191 | error = gfs2_glock_get(sdp, no_addr, &gfs2_inode_glops, CREATE, &ip->i_gl); |
feaa7bba SW |
192 | if (unlikely(error)) |
193 | goto fail; | |
194 | ip->i_gl->gl_object = ip; | |
b3b94faa | 195 | |
dbb7cae2 | 196 | error = gfs2_glock_get(sdp, no_addr, &gfs2_iopen_glops, CREATE, &io_gl); |
feaa7bba SW |
197 | if (unlikely(error)) |
198 | goto fail_put; | |
b3b94faa | 199 | |
bfded27b | 200 | set_bit(GIF_INVALID, &ip->i_flags); |
feaa7bba SW |
201 | error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT, &ip->i_iopen_gh); |
202 | if (unlikely(error)) | |
203 | goto fail_iopen; | |
d93cfa98 | 204 | ip->i_iopen_gh.gh_gl->gl_object = ip; |
b3b94faa | 205 | |
feaa7bba | 206 | gfs2_glock_put(io_gl); |
c8cdf479 | 207 | |
35dcc52e WC |
208 | if ((type == DT_UNKNOWN) && (no_formal_ino == 0)) |
209 | goto gfs2_nfsbypass; | |
210 | ||
211 | inode->i_mode = DT2IF(type); | |
212 | ||
c8cdf479 SW |
213 | /* |
214 | * We must read the inode in order to work out its type in | |
215 | * this case. Note that this doesn't happen often as we normally | |
216 | * know the type beforehand. This code path only occurs during | |
217 | * unlinked inode recovery (where it is safe to do this glock, | |
218 | * which is not true in the general case). | |
219 | */ | |
c8cdf479 SW |
220 | if (type == DT_UNKNOWN) { |
221 | struct gfs2_holder gh; | |
222 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh); | |
223 | if (unlikely(error)) | |
224 | goto fail_glock; | |
225 | /* Inode is now uptodate */ | |
c8cdf479 SW |
226 | gfs2_glock_dq_uninit(&gh); |
227 | } | |
228 | ||
35dcc52e | 229 | gfs2_set_iop(inode); |
feaa7bba | 230 | } |
b3b94faa | 231 | |
35dcc52e | 232 | gfs2_nfsbypass: |
b3b94faa | 233 | return inode; |
c8cdf479 SW |
234 | fail_glock: |
235 | gfs2_glock_dq(&ip->i_iopen_gh); | |
feaa7bba SW |
236 | fail_iopen: |
237 | gfs2_glock_put(io_gl); | |
238 | fail_put: | |
239 | ip->i_gl->gl_object = NULL; | |
240 | gfs2_glock_put(ip->i_gl); | |
241 | fail: | |
69840b0d | 242 | iget_failed(inode); |
feaa7bba | 243 | return ERR_PTR(error); |
b3b94faa DT |
244 | } |
245 | ||
af339c02 | 246 | static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf) |
ea744d01 | 247 | { |
ea744d01 | 248 | const struct gfs2_dinode *str = buf; |
719ee344 | 249 | struct timespec atime; |
9a004508 | 250 | u16 height, depth; |
ea744d01 | 251 | |
ecc30c79 SW |
252 | if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr))) |
253 | goto corrupt; | |
dbb7cae2 | 254 | ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino); |
b60623c2 | 255 | ip->i_inode.i_mode = be32_to_cpu(str->di_mode); |
e7f14f4d | 256 | ip->i_inode.i_rdev = 0; |
b60623c2 | 257 | switch (ip->i_inode.i_mode & S_IFMT) { |
e7f14f4d SW |
258 | case S_IFBLK: |
259 | case S_IFCHR: | |
260 | ip->i_inode.i_rdev = MKDEV(be32_to_cpu(str->di_major), | |
261 | be32_to_cpu(str->di_minor)); | |
262 | break; | |
263 | }; | |
264 | ||
2933f925 SW |
265 | ip->i_inode.i_uid = be32_to_cpu(str->di_uid); |
266 | ip->i_inode.i_gid = be32_to_cpu(str->di_gid); | |
4f56110a SW |
267 | /* |
268 | * We will need to review setting the nlink count here in the | |
269 | * light of the forthcoming ro bind mount work. This is a reminder | |
270 | * to do that. | |
271 | */ | |
272 | ip->i_inode.i_nlink = be32_to_cpu(str->di_nlink); | |
c9e98886 SW |
273 | ip->i_disksize = be64_to_cpu(str->di_size); |
274 | i_size_write(&ip->i_inode, ip->i_disksize); | |
77658aad | 275 | gfs2_set_inode_blocks(&ip->i_inode, be64_to_cpu(str->di_blocks)); |
719ee344 SW |
276 | atime.tv_sec = be64_to_cpu(str->di_atime); |
277 | atime.tv_nsec = be32_to_cpu(str->di_atime_nsec); | |
278 | if (timespec_compare(&ip->i_inode.i_atime, &atime) < 0) | |
279 | ip->i_inode.i_atime = atime; | |
1a7b1eed | 280 | ip->i_inode.i_mtime.tv_sec = be64_to_cpu(str->di_mtime); |
4bd91ba1 | 281 | ip->i_inode.i_mtime.tv_nsec = be32_to_cpu(str->di_mtime_nsec); |
1a7b1eed | 282 | ip->i_inode.i_ctime.tv_sec = be64_to_cpu(str->di_ctime); |
4bd91ba1 | 283 | ip->i_inode.i_ctime.tv_nsec = be32_to_cpu(str->di_ctime_nsec); |
ea744d01 | 284 | |
ce276b06 | 285 | ip->i_goal = be64_to_cpu(str->di_goal_meta); |
bcf0b5b3 | 286 | ip->i_generation = be64_to_cpu(str->di_generation); |
ea744d01 | 287 | |
383f01fb | 288 | ip->i_diskflags = be32_to_cpu(str->di_flags); |
6b124d8d | 289 | gfs2_set_inode_flags(&ip->i_inode); |
ecc30c79 SW |
290 | height = be16_to_cpu(str->di_height); |
291 | if (unlikely(height > GFS2_MAX_META_HEIGHT)) | |
292 | goto corrupt; | |
293 | ip->i_height = (u8)height; | |
ea744d01 | 294 | |
9a004508 SW |
295 | depth = be16_to_cpu(str->di_depth); |
296 | if (unlikely(depth > GFS2_DIR_MAX_DEPTH)) | |
297 | goto corrupt; | |
298 | ip->i_depth = (u8)depth; | |
ad6203f2 | 299 | ip->i_entries = be32_to_cpu(str->di_entries); |
ea744d01 | 300 | |
3767ac21 | 301 | ip->i_eattr = be64_to_cpu(str->di_eattr); |
5561093e SW |
302 | if (S_ISREG(ip->i_inode.i_mode)) |
303 | gfs2_set_aops(&ip->i_inode); | |
304 | ||
af339c02 | 305 | return 0; |
ecc30c79 SW |
306 | corrupt: |
307 | if (gfs2_consist_inode(ip)) | |
308 | gfs2_dinode_print(ip); | |
309 | return -EIO; | |
ea744d01 SW |
310 | } |
311 | ||
b3b94faa DT |
312 | /** |
313 | * gfs2_inode_refresh - Refresh the incore copy of the dinode | |
314 | * @ip: The GFS2 inode | |
315 | * | |
316 | * Returns: errno | |
317 | */ | |
318 | ||
319 | int gfs2_inode_refresh(struct gfs2_inode *ip) | |
320 | { | |
321 | struct buffer_head *dibh; | |
322 | int error; | |
323 | ||
324 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
325 | if (error) | |
326 | return error; | |
327 | ||
feaa7bba | 328 | if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), dibh, GFS2_METATYPE_DI)) { |
b3b94faa DT |
329 | brelse(dibh); |
330 | return -EIO; | |
331 | } | |
332 | ||
af339c02 | 333 | error = gfs2_dinode_in(ip, dibh->b_data); |
b3b94faa | 334 | brelse(dibh); |
bfded27b | 335 | clear_bit(GIF_INVALID, &ip->i_flags); |
b3b94faa | 336 | |
af339c02 | 337 | return error; |
b3b94faa DT |
338 | } |
339 | ||
feaa7bba | 340 | int gfs2_dinode_dealloc(struct gfs2_inode *ip) |
b3b94faa | 341 | { |
feaa7bba | 342 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa DT |
343 | struct gfs2_alloc *al; |
344 | struct gfs2_rgrpd *rgd; | |
345 | int error; | |
346 | ||
77658aad | 347 | if (gfs2_get_inode_blocks(&ip->i_inode) != 1) { |
b3b94faa | 348 | if (gfs2_consist_inode(ip)) |
4cc14f0b | 349 | gfs2_dinode_print(ip); |
b3b94faa DT |
350 | return -EIO; |
351 | } | |
352 | ||
353 | al = gfs2_alloc_get(ip); | |
182fe5ab CG |
354 | if (!al) |
355 | return -ENOMEM; | |
b3b94faa DT |
356 | |
357 | error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); | |
358 | if (error) | |
359 | goto out; | |
360 | ||
361 | error = gfs2_rindex_hold(sdp, &al->al_ri_gh); | |
362 | if (error) | |
363 | goto out_qs; | |
364 | ||
dbb7cae2 | 365 | rgd = gfs2_blk2rgrpd(sdp, ip->i_no_addr); |
b3b94faa DT |
366 | if (!rgd) { |
367 | gfs2_consist_inode(ip); | |
368 | error = -EIO; | |
369 | goto out_rindex_relse; | |
370 | } | |
371 | ||
372 | error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, | |
373 | &al->al_rgd_gh); | |
374 | if (error) | |
375 | goto out_rindex_relse; | |
376 | ||
420b9e5e | 377 | error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_STATFS + RES_QUOTA, 1); |
b3b94faa DT |
378 | if (error) |
379 | goto out_rg_gunlock; | |
380 | ||
2bcd610d SW |
381 | set_bit(GLF_DIRTY, &ip->i_gl->gl_flags); |
382 | set_bit(GLF_LFLUSH, &ip->i_gl->gl_flags); | |
b3b94faa DT |
383 | |
384 | gfs2_free_di(rgd, ip); | |
385 | ||
b3b94faa | 386 | gfs2_trans_end(sdp); |
b3b94faa | 387 | |
feaa7bba | 388 | out_rg_gunlock: |
b3b94faa | 389 | gfs2_glock_dq_uninit(&al->al_rgd_gh); |
feaa7bba | 390 | out_rindex_relse: |
b3b94faa | 391 | gfs2_glock_dq_uninit(&al->al_ri_gh); |
feaa7bba | 392 | out_qs: |
b3b94faa | 393 | gfs2_quota_unhold(ip); |
36327521 | 394 | out: |
feaa7bba | 395 | gfs2_alloc_put(ip); |
b3b94faa DT |
396 | return error; |
397 | } | |
398 | ||
b3b94faa | 399 | /** |
87d21e07 | 400 | * gfs2_change_nlink - Change nlink count on inode |
b3b94faa DT |
401 | * @ip: The GFS2 inode |
402 | * @diff: The change in the nlink count required | |
403 | * | |
404 | * Returns: errno | |
405 | */ | |
87d21e07 | 406 | int gfs2_change_nlink(struct gfs2_inode *ip, int diff) |
b3b94faa DT |
407 | { |
408 | struct buffer_head *dibh; | |
cd915493 | 409 | u32 nlink; |
b3b94faa DT |
410 | int error; |
411 | ||
4f56110a SW |
412 | BUG_ON(diff != 1 && diff != -1); |
413 | nlink = ip->i_inode.i_nlink + diff; | |
b3b94faa DT |
414 | |
415 | /* If we are reducing the nlink count, but the new value ends up being | |
416 | bigger than the old one, we must have underflowed. */ | |
4f56110a | 417 | if (diff < 0 && nlink > ip->i_inode.i_nlink) { |
b3b94faa | 418 | if (gfs2_consist_inode(ip)) |
4cc14f0b | 419 | gfs2_dinode_print(ip); |
b3b94faa DT |
420 | return -EIO; |
421 | } | |
422 | ||
423 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
424 | if (error) | |
425 | return error; | |
426 | ||
4f56110a SW |
427 | if (diff > 0) |
428 | inc_nlink(&ip->i_inode); | |
429 | else | |
430 | drop_nlink(&ip->i_inode); | |
431 | ||
4bd91ba1 | 432 | ip->i_inode.i_ctime = CURRENT_TIME; |
b3b94faa | 433 | |
d4e9c4c3 | 434 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
539e5d6b | 435 | gfs2_dinode_out(ip, dibh->b_data); |
b3b94faa | 436 | brelse(dibh); |
feaa7bba | 437 | mark_inode_dirty(&ip->i_inode); |
b3b94faa | 438 | |
87d21e07 | 439 | if (ip->i_inode.i_nlink == 0) |
ddee7608 | 440 | gfs2_unlink_di(&ip->i_inode); /* mark inode unlinked */ |
87d21e07 | 441 | |
5509826f WC |
442 | return error; |
443 | } | |
444 | ||
c752666c SW |
445 | struct inode *gfs2_lookup_simple(struct inode *dip, const char *name) |
446 | { | |
447 | struct qstr qstr; | |
6c93fd1e | 448 | struct inode *inode; |
71b86f56 | 449 | gfs2_str2qstr(&qstr, name); |
a569c711 | 450 | inode = gfs2_lookupi(dip, &qstr, 1); |
6c93fd1e RC |
451 | /* gfs2_lookupi has inconsistent callers: vfs |
452 | * related routines expect NULL for no entry found, | |
453 | * gfs2_lookup_simple callers expect ENOENT | |
454 | * and do not check for NULL. | |
455 | */ | |
456 | if (inode == NULL) | |
457 | return ERR_PTR(-ENOENT); | |
458 | else | |
459 | return inode; | |
c752666c SW |
460 | } |
461 | ||
462 | ||
b3b94faa DT |
463 | /** |
464 | * gfs2_lookupi - Look up a filename in a directory and return its inode | |
465 | * @d_gh: An initialized holder for the directory glock | |
466 | * @name: The name of the inode to look for | |
467 | * @is_root: If 1, ignore the caller's permissions | |
468 | * @i_gh: An uninitialized holder for the new inode glock | |
469 | * | |
d7c103d0 SW |
470 | * This can be called via the VFS filldir function when NFS is doing |
471 | * a readdirplus and the inode which its intending to stat isn't | |
472 | * already in cache. In this case we must not take the directory glock | |
473 | * again, since the readdir call will have already taken that lock. | |
b3b94faa DT |
474 | * |
475 | * Returns: errno | |
476 | */ | |
477 | ||
feaa7bba | 478 | struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name, |
a569c711 | 479 | int is_root) |
b3b94faa | 480 | { |
c9fd4307 | 481 | struct super_block *sb = dir->i_sb; |
feaa7bba | 482 | struct gfs2_inode *dip = GFS2_I(dir); |
b3b94faa | 483 | struct gfs2_holder d_gh; |
037bcbb7 | 484 | int error = 0; |
c752666c | 485 | struct inode *inode = NULL; |
d7c103d0 | 486 | int unlock = 0; |
b3b94faa DT |
487 | |
488 | if (!name->len || name->len > GFS2_FNAMESIZE) | |
c752666c | 489 | return ERR_PTR(-ENAMETOOLONG); |
b3b94faa | 490 | |
c752666c SW |
491 | if ((name->len == 1 && memcmp(name->name, ".", 1) == 0) || |
492 | (name->len == 2 && memcmp(name->name, "..", 2) == 0 && | |
493 | dir == sb->s_root->d_inode)) { | |
320dd101 SW |
494 | igrab(dir); |
495 | return dir; | |
b3b94faa DT |
496 | } |
497 | ||
7afd88d9 | 498 | if (gfs2_glock_is_locked_by_me(dip->i_gl) == NULL) { |
d7c103d0 SW |
499 | error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, &d_gh); |
500 | if (error) | |
501 | return ERR_PTR(error); | |
502 | unlock = 1; | |
503 | } | |
b3b94faa DT |
504 | |
505 | if (!is_root) { | |
f58ba889 | 506 | error = gfs2_permission(dir, MAY_EXEC); |
b3b94faa DT |
507 | if (error) |
508 | goto out; | |
509 | } | |
510 | ||
dbb7cae2 SW |
511 | inode = gfs2_dir_search(dir, name); |
512 | if (IS_ERR(inode)) | |
513 | error = PTR_ERR(inode); | |
7359a19c | 514 | out: |
d7c103d0 SW |
515 | if (unlock) |
516 | gfs2_glock_dq_uninit(&d_gh); | |
c752666c SW |
517 | if (error == -ENOENT) |
518 | return NULL; | |
d7c103d0 | 519 | return inode ? inode : ERR_PTR(error); |
b3b94faa DT |
520 | } |
521 | ||
b3b94faa DT |
522 | /** |
523 | * create_ok - OK to create a new on-disk inode here? | |
524 | * @dip: Directory in which dinode is to be created | |
525 | * @name: Name of new dinode | |
526 | * @mode: | |
527 | * | |
528 | * Returns: errno | |
529 | */ | |
530 | ||
feaa7bba | 531 | static int create_ok(struct gfs2_inode *dip, const struct qstr *name, |
b3b94faa DT |
532 | unsigned int mode) |
533 | { | |
534 | int error; | |
535 | ||
f58ba889 | 536 | error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC); |
b3b94faa DT |
537 | if (error) |
538 | return error; | |
539 | ||
540 | /* Don't create entries in an unlinked directory */ | |
4f56110a | 541 | if (!dip->i_inode.i_nlink) |
b3b94faa DT |
542 | return -EPERM; |
543 | ||
dbb7cae2 | 544 | error = gfs2_dir_check(&dip->i_inode, name, NULL); |
b3b94faa DT |
545 | switch (error) { |
546 | case -ENOENT: | |
547 | error = 0; | |
548 | break; | |
549 | case 0: | |
550 | return -EEXIST; | |
551 | default: | |
552 | return error; | |
553 | } | |
554 | ||
ad6203f2 | 555 | if (dip->i_entries == (u32)-1) |
b3b94faa | 556 | return -EFBIG; |
4f56110a | 557 | if (S_ISDIR(mode) && dip->i_inode.i_nlink == (u32)-1) |
b3b94faa DT |
558 | return -EMLINK; |
559 | ||
560 | return 0; | |
561 | } | |
562 | ||
563 | static void munge_mode_uid_gid(struct gfs2_inode *dip, unsigned int *mode, | |
564 | unsigned int *uid, unsigned int *gid) | |
565 | { | |
feaa7bba | 566 | if (GFS2_SB(&dip->i_inode)->sd_args.ar_suiddir && |
2933f925 | 567 | (dip->i_inode.i_mode & S_ISUID) && dip->i_inode.i_uid) { |
b3b94faa DT |
568 | if (S_ISDIR(*mode)) |
569 | *mode |= S_ISUID; | |
3de7be33 | 570 | else if (dip->i_inode.i_uid != current_fsuid()) |
b3b94faa | 571 | *mode &= ~07111; |
2933f925 | 572 | *uid = dip->i_inode.i_uid; |
b3b94faa | 573 | } else |
3de7be33 | 574 | *uid = current_fsuid(); |
b3b94faa | 575 | |
b60623c2 | 576 | if (dip->i_inode.i_mode & S_ISGID) { |
b3b94faa DT |
577 | if (S_ISDIR(*mode)) |
578 | *mode |= S_ISGID; | |
2933f925 | 579 | *gid = dip->i_inode.i_gid; |
b3b94faa | 580 | } else |
3de7be33 | 581 | *gid = current_fsgid(); |
b3b94faa DT |
582 | } |
583 | ||
dbb7cae2 | 584 | static int alloc_dinode(struct gfs2_inode *dip, u64 *no_addr, u64 *generation) |
b3b94faa | 585 | { |
feaa7bba | 586 | struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); |
b3b94faa DT |
587 | int error; |
588 | ||
6dbd8224 SW |
589 | if (gfs2_alloc_get(dip) == NULL) |
590 | return -ENOMEM; | |
b3b94faa | 591 | |
6dbd8224 | 592 | dip->i_alloc->al_requested = RES_DINODE; |
b3b94faa DT |
593 | error = gfs2_inplace_reserve(dip); |
594 | if (error) | |
595 | goto out; | |
596 | ||
feaa7bba | 597 | error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_STATFS, 0); |
b3b94faa DT |
598 | if (error) |
599 | goto out_ipreserv; | |
600 | ||
6050b9c7 | 601 | error = gfs2_alloc_di(dip, no_addr, generation); |
b3b94faa DT |
602 | |
603 | gfs2_trans_end(sdp); | |
604 | ||
4340fe62 | 605 | out_ipreserv: |
b3b94faa | 606 | gfs2_inplace_release(dip); |
4340fe62 | 607 | out: |
b3b94faa | 608 | gfs2_alloc_put(dip); |
b3b94faa DT |
609 | return error; |
610 | } | |
611 | ||
612 | /** | |
613 | * init_dinode - Fill in a new dinode structure | |
614 | * @dip: the directory this inode is being created in | |
615 | * @gl: The glock covering the new inode | |
616 | * @inum: the inode number | |
617 | * @mode: the file permissions | |
618 | * @uid: | |
619 | * @gid: | |
620 | * | |
621 | */ | |
622 | ||
623 | static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl, | |
629a21e7 | 624 | const struct gfs2_inum_host *inum, unsigned int mode, |
4340fe62 | 625 | unsigned int uid, unsigned int gid, |
e9bd2b3b | 626 | const u64 *generation, dev_t dev, struct buffer_head **bhp) |
b3b94faa | 627 | { |
feaa7bba | 628 | struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); |
b96ca4fa | 629 | struct gfs2_dinode *di; |
b3b94faa | 630 | struct buffer_head *dibh; |
4bd91ba1 | 631 | struct timespec tv = CURRENT_TIME; |
b3b94faa DT |
632 | |
633 | dibh = gfs2_meta_new(gl, inum->no_addr); | |
d4e9c4c3 | 634 | gfs2_trans_add_bh(gl, dibh, 1); |
b3b94faa DT |
635 | gfs2_metatype_set(dibh, GFS2_METATYPE_DI, GFS2_FORMAT_DI); |
636 | gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode)); | |
b96ca4fa SW |
637 | di = (struct gfs2_dinode *)dibh->b_data; |
638 | ||
2442a098 SW |
639 | di->di_num.no_formal_ino = cpu_to_be64(inum->no_formal_ino); |
640 | di->di_num.no_addr = cpu_to_be64(inum->no_addr); | |
b96ca4fa SW |
641 | di->di_mode = cpu_to_be32(mode); |
642 | di->di_uid = cpu_to_be32(uid); | |
643 | di->di_gid = cpu_to_be32(gid); | |
294caaa3 SW |
644 | di->di_nlink = 0; |
645 | di->di_size = 0; | |
b96ca4fa | 646 | di->di_blocks = cpu_to_be64(1); |
4bd91ba1 | 647 | di->di_atime = di->di_mtime = di->di_ctime = cpu_to_be64(tv.tv_sec); |
e7f14f4d SW |
648 | di->di_major = cpu_to_be32(MAJOR(dev)); |
649 | di->di_minor = cpu_to_be32(MINOR(dev)); | |
b96ca4fa | 650 | di->di_goal_meta = di->di_goal_data = cpu_to_be64(inum->no_addr); |
4340fe62 | 651 | di->di_generation = cpu_to_be64(*generation); |
294caaa3 | 652 | di->di_flags = 0; |
b3b94faa DT |
653 | |
654 | if (S_ISREG(mode)) { | |
383f01fb | 655 | if ((dip->i_diskflags & GFS2_DIF_INHERIT_JDATA) || |
b3b94faa | 656 | gfs2_tune_get(sdp, gt_new_files_jdata)) |
b96ca4fa | 657 | di->di_flags |= cpu_to_be32(GFS2_DIF_JDATA); |
b3b94faa | 658 | } else if (S_ISDIR(mode)) { |
383f01fb | 659 | di->di_flags |= cpu_to_be32(dip->i_diskflags & |
568f4c96 | 660 | GFS2_DIF_INHERIT_JDATA); |
b3b94faa DT |
661 | } |
662 | ||
b96ca4fa | 663 | di->__pad1 = 0; |
a9583c79 | 664 | di->di_payload_format = cpu_to_be32(S_ISDIR(mode) ? GFS2_FORMAT_DE : 0); |
294caaa3 | 665 | di->di_height = 0; |
b96ca4fa SW |
666 | di->__pad2 = 0; |
667 | di->__pad3 = 0; | |
294caaa3 SW |
668 | di->di_depth = 0; |
669 | di->di_entries = 0; | |
b96ca4fa | 670 | memset(&di->__pad4, 0, sizeof(di->__pad4)); |
294caaa3 | 671 | di->di_eattr = 0; |
4bd91ba1 SW |
672 | di->di_atime_nsec = cpu_to_be32(tv.tv_nsec); |
673 | di->di_mtime_nsec = cpu_to_be32(tv.tv_nsec); | |
674 | di->di_ctime_nsec = cpu_to_be32(tv.tv_nsec); | |
b96ca4fa | 675 | memset(&di->di_reserved, 0, sizeof(di->di_reserved)); |
e9bd2b3b WC |
676 | |
677 | set_buffer_uptodate(dibh); | |
b96ca4fa | 678 | |
e9bd2b3b | 679 | *bhp = dibh; |
b3b94faa DT |
680 | } |
681 | ||
682 | static int make_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl, | |
629a21e7 | 683 | unsigned int mode, const struct gfs2_inum_host *inum, |
e9bd2b3b | 684 | const u64 *generation, dev_t dev, struct buffer_head **bhp) |
b3b94faa | 685 | { |
feaa7bba | 686 | struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); |
b3b94faa DT |
687 | unsigned int uid, gid; |
688 | int error; | |
689 | ||
690 | munge_mode_uid_gid(dip, &mode, &uid, &gid); | |
182fe5ab CG |
691 | if (!gfs2_alloc_get(dip)) |
692 | return -ENOMEM; | |
b3b94faa DT |
693 | |
694 | error = gfs2_quota_lock(dip, uid, gid); | |
695 | if (error) | |
696 | goto out; | |
697 | ||
698 | error = gfs2_quota_check(dip, uid, gid); | |
699 | if (error) | |
700 | goto out_quota; | |
701 | ||
feaa7bba | 702 | error = gfs2_trans_begin(sdp, RES_DINODE + RES_QUOTA, 0); |
b3b94faa DT |
703 | if (error) |
704 | goto out_quota; | |
705 | ||
e9bd2b3b | 706 | init_dinode(dip, gl, inum, mode, uid, gid, generation, dev, bhp); |
b3b94faa | 707 | gfs2_quota_change(dip, +1, uid, gid); |
b3b94faa DT |
708 | gfs2_trans_end(sdp); |
709 | ||
feaa7bba | 710 | out_quota: |
b3b94faa | 711 | gfs2_quota_unlock(dip); |
feaa7bba | 712 | out: |
b3b94faa | 713 | gfs2_alloc_put(dip); |
b3b94faa DT |
714 | return error; |
715 | } | |
716 | ||
feaa7bba SW |
717 | static int link_dinode(struct gfs2_inode *dip, const struct qstr *name, |
718 | struct gfs2_inode *ip) | |
b3b94faa | 719 | { |
feaa7bba | 720 | struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); |
b3b94faa DT |
721 | struct gfs2_alloc *al; |
722 | int alloc_required; | |
723 | struct buffer_head *dibh; | |
724 | int error; | |
725 | ||
726 | al = gfs2_alloc_get(dip); | |
182fe5ab CG |
727 | if (!al) |
728 | return -ENOMEM; | |
b3b94faa DT |
729 | |
730 | error = gfs2_quota_lock(dip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); | |
731 | if (error) | |
732 | goto fail; | |
733 | ||
feaa7bba | 734 | error = alloc_required = gfs2_diradd_alloc_required(&dip->i_inode, name); |
c752666c | 735 | if (alloc_required < 0) |
1b8177ec | 736 | goto fail_quota_locks; |
b3b94faa | 737 | if (alloc_required) { |
2933f925 | 738 | error = gfs2_quota_check(dip, dip->i_inode.i_uid, dip->i_inode.i_gid); |
b3b94faa DT |
739 | if (error) |
740 | goto fail_quota_locks; | |
741 | ||
742 | al->al_requested = sdp->sd_max_dirres; | |
743 | ||
744 | error = gfs2_inplace_reserve(dip); | |
745 | if (error) | |
746 | goto fail_quota_locks; | |
747 | ||
320dd101 | 748 | error = gfs2_trans_begin(sdp, sdp->sd_max_dirres + |
bb8d8a6f | 749 | al->al_rgd->rd_length + |
907b9bce | 750 | 2 * RES_DINODE + |
b3b94faa DT |
751 | RES_STATFS + RES_QUOTA, 0); |
752 | if (error) | |
753 | goto fail_ipreserv; | |
754 | } else { | |
feaa7bba | 755 | error = gfs2_trans_begin(sdp, RES_LEAF + 2 * RES_DINODE, 0); |
b3b94faa DT |
756 | if (error) |
757 | goto fail_quota_locks; | |
758 | } | |
759 | ||
dbb7cae2 | 760 | error = gfs2_dir_add(&dip->i_inode, name, ip, IF2DT(ip->i_inode.i_mode)); |
b3b94faa DT |
761 | if (error) |
762 | goto fail_end_trans; | |
763 | ||
764 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
765 | if (error) | |
766 | goto fail_end_trans; | |
4f56110a | 767 | ip->i_inode.i_nlink = 1; |
d4e9c4c3 | 768 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
539e5d6b | 769 | gfs2_dinode_out(ip, dibh->b_data); |
b3b94faa | 770 | brelse(dibh); |
b3b94faa DT |
771 | return 0; |
772 | ||
320dd101 | 773 | fail_end_trans: |
b3b94faa DT |
774 | gfs2_trans_end(sdp); |
775 | ||
320dd101 | 776 | fail_ipreserv: |
6dbd8224 | 777 | if (dip->i_alloc->al_rgd) |
b3b94faa DT |
778 | gfs2_inplace_release(dip); |
779 | ||
320dd101 | 780 | fail_quota_locks: |
b3b94faa DT |
781 | gfs2_quota_unlock(dip); |
782 | ||
320dd101 | 783 | fail: |
b3b94faa | 784 | gfs2_alloc_put(dip); |
b3b94faa DT |
785 | return error; |
786 | } | |
787 | ||
fcb47e0b RH |
788 | static int gfs2_security_init(struct gfs2_inode *dip, struct gfs2_inode *ip) |
789 | { | |
790 | int err; | |
791 | size_t len; | |
792 | void *value; | |
793 | char *name; | |
fcb47e0b RH |
794 | |
795 | err = security_inode_init_security(&ip->i_inode, &dip->i_inode, | |
796 | &name, &value, &len); | |
797 | ||
798 | if (err) { | |
799 | if (err == -EOPNOTSUPP) | |
800 | return 0; | |
801 | return err; | |
802 | } | |
803 | ||
431547b3 CH |
804 | err = __gfs2_xattr_set(&ip->i_inode, name, value, len, 0, |
805 | GFS2_EATYPE_SECURITY); | |
fcb47e0b RH |
806 | kfree(value); |
807 | kfree(name); | |
808 | ||
809 | return err; | |
810 | } | |
811 | ||
b3b94faa DT |
812 | /** |
813 | * gfs2_createi - Create a new inode | |
814 | * @ghs: An array of two holders | |
815 | * @name: The name of the new file | |
816 | * @mode: the permissions on the new inode | |
817 | * | |
818 | * @ghs[0] is an initialized holder for the directory | |
819 | * @ghs[1] is the holder for the inode lock | |
820 | * | |
7359a19c | 821 | * If the return value is not NULL, the glocks on both the directory and the new |
b3b94faa DT |
822 | * file are held. A transaction has been started and an inplace reservation |
823 | * is held, as well. | |
824 | * | |
7359a19c | 825 | * Returns: An inode |
b3b94faa DT |
826 | */ |
827 | ||
feaa7bba | 828 | struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name, |
e7f14f4d | 829 | unsigned int mode, dev_t dev) |
b3b94faa | 830 | { |
e1cc8603 | 831 | struct inode *inode = NULL; |
5c676f6d | 832 | struct gfs2_inode *dip = ghs->gh_gl->gl_object; |
feaa7bba SW |
833 | struct inode *dir = &dip->i_inode; |
834 | struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); | |
dbb7cae2 | 835 | struct gfs2_inum_host inum = { .no_addr = 0, .no_formal_ino = 0 }; |
b3b94faa | 836 | int error; |
4340fe62 | 837 | u64 generation; |
f91a0d3e | 838 | struct buffer_head *bh = NULL; |
b3b94faa DT |
839 | |
840 | if (!name->len || name->len > GFS2_FNAMESIZE) | |
7359a19c | 841 | return ERR_PTR(-ENAMETOOLONG); |
b3b94faa | 842 | |
b3b94faa DT |
843 | gfs2_holder_reinit(LM_ST_EXCLUSIVE, 0, ghs); |
844 | error = gfs2_glock_nq(ghs); | |
845 | if (error) | |
846 | goto fail; | |
847 | ||
848 | error = create_ok(dip, name, mode); | |
849 | if (error) | |
850 | goto fail_gunlock; | |
851 | ||
dbb7cae2 | 852 | error = alloc_dinode(dip, &inum.no_addr, &generation); |
b3b94faa DT |
853 | if (error) |
854 | goto fail_gunlock; | |
8d8291ae | 855 | inum.no_formal_ino = generation; |
b3b94faa | 856 | |
28626e20 SW |
857 | error = gfs2_glock_nq_num(sdp, inum.no_addr, &gfs2_inode_glops, |
858 | LM_ST_EXCLUSIVE, GL_SKIP, ghs + 1); | |
859 | if (error) | |
860 | goto fail_gunlock; | |
b3b94faa | 861 | |
e9bd2b3b | 862 | error = make_dinode(dip, ghs[1].gh_gl, mode, &inum, &generation, dev, &bh); |
b3b94faa DT |
863 | if (error) |
864 | goto fail_gunlock2; | |
865 | ||
8d8291ae SW |
866 | inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode), inum.no_addr, |
867 | inum.no_formal_ino, 0); | |
feaa7bba | 868 | if (IS_ERR(inode)) |
b3b94faa DT |
869 | goto fail_gunlock2; |
870 | ||
feaa7bba | 871 | error = gfs2_inode_refresh(GFS2_I(inode)); |
b3b94faa | 872 | if (error) |
e1cc8603 | 873 | goto fail_gunlock2; |
b3b94faa | 874 | |
479c427d | 875 | error = gfs2_acl_create(dip, inode); |
b3b94faa | 876 | if (error) |
e1cc8603 | 877 | goto fail_gunlock2; |
b3b94faa | 878 | |
fcb47e0b RH |
879 | error = gfs2_security_init(dip, GFS2_I(inode)); |
880 | if (error) | |
e1cc8603 | 881 | goto fail_gunlock2; |
fcb47e0b | 882 | |
feaa7bba | 883 | error = link_dinode(dip, name, GFS2_I(inode)); |
b3b94faa | 884 | if (error) |
e1cc8603 | 885 | goto fail_gunlock2; |
b3b94faa | 886 | |
f91a0d3e SW |
887 | if (bh) |
888 | brelse(bh); | |
7359a19c | 889 | return inode; |
b3b94faa | 890 | |
320dd101 | 891 | fail_gunlock2: |
b3b94faa | 892 | gfs2_glock_dq_uninit(ghs + 1); |
bd1eb881 | 893 | if (inode && !IS_ERR(inode)) |
e1cc8603 | 894 | iput(inode); |
320dd101 | 895 | fail_gunlock: |
b3b94faa | 896 | gfs2_glock_dq(ghs); |
320dd101 | 897 | fail: |
f91a0d3e SW |
898 | if (bh) |
899 | brelse(bh); | |
7359a19c | 900 | return ERR_PTR(error); |
b3b94faa DT |
901 | } |
902 | ||
536baf02 | 903 | static int __gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr) |
b3b94faa DT |
904 | { |
905 | struct buffer_head *dibh; | |
906 | int error; | |
907 | ||
908 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
909 | if (!error) { | |
feaa7bba SW |
910 | error = inode_setattr(&ip->i_inode, attr); |
911 | gfs2_assert_warn(GFS2_SB(&ip->i_inode), !error); | |
d4e9c4c3 | 912 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
539e5d6b | 913 | gfs2_dinode_out(ip, dibh->b_data); |
b3b94faa DT |
914 | brelse(dibh); |
915 | } | |
916 | return error; | |
917 | } | |
918 | ||
919 | /** | |
920 | * gfs2_setattr_simple - | |
921 | * @ip: | |
922 | * @attr: | |
923 | * | |
924 | * Called with a reference on the vnode. | |
925 | * | |
926 | * Returns: errno | |
927 | */ | |
928 | ||
929 | int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr) | |
930 | { | |
931 | int error; | |
932 | ||
5c676f6d | 933 | if (current->journal_info) |
b3b94faa DT |
934 | return __gfs2_setattr_simple(ip, attr); |
935 | ||
feaa7bba | 936 | error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE, 0); |
b3b94faa DT |
937 | if (error) |
938 | return error; | |
939 | ||
940 | error = __gfs2_setattr_simple(ip, attr); | |
feaa7bba | 941 | gfs2_trans_end(GFS2_SB(&ip->i_inode)); |
b3b94faa DT |
942 | return error; |
943 | } | |
944 | ||
bb8d8a6f SW |
945 | void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf) |
946 | { | |
bb8d8a6f SW |
947 | struct gfs2_dinode *str = buf; |
948 | ||
949 | str->di_header.mh_magic = cpu_to_be32(GFS2_MAGIC); | |
950 | str->di_header.mh_type = cpu_to_be32(GFS2_METATYPE_DI); | |
bb8d8a6f | 951 | str->di_header.mh_format = cpu_to_be32(GFS2_FORMAT_DI); |
bb8d8a6f SW |
952 | str->di_num.no_addr = cpu_to_be64(ip->i_no_addr); |
953 | str->di_num.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino); | |
954 | str->di_mode = cpu_to_be32(ip->i_inode.i_mode); | |
955 | str->di_uid = cpu_to_be32(ip->i_inode.i_uid); | |
956 | str->di_gid = cpu_to_be32(ip->i_inode.i_gid); | |
957 | str->di_nlink = cpu_to_be32(ip->i_inode.i_nlink); | |
c9e98886 | 958 | str->di_size = cpu_to_be64(ip->i_disksize); |
77658aad | 959 | str->di_blocks = cpu_to_be64(gfs2_get_inode_blocks(&ip->i_inode)); |
bb8d8a6f SW |
960 | str->di_atime = cpu_to_be64(ip->i_inode.i_atime.tv_sec); |
961 | str->di_mtime = cpu_to_be64(ip->i_inode.i_mtime.tv_sec); | |
962 | str->di_ctime = cpu_to_be64(ip->i_inode.i_ctime.tv_sec); | |
963 | ||
ce276b06 SW |
964 | str->di_goal_meta = cpu_to_be64(ip->i_goal); |
965 | str->di_goal_data = cpu_to_be64(ip->i_goal); | |
bcf0b5b3 | 966 | str->di_generation = cpu_to_be64(ip->i_generation); |
bb8d8a6f | 967 | |
383f01fb | 968 | str->di_flags = cpu_to_be32(ip->i_diskflags); |
ecc30c79 | 969 | str->di_height = cpu_to_be16(ip->i_height); |
bb8d8a6f | 970 | str->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) && |
383f01fb | 971 | !(ip->i_diskflags & GFS2_DIF_EXHASH) ? |
bb8d8a6f | 972 | GFS2_FORMAT_DE : 0); |
9a004508 | 973 | str->di_depth = cpu_to_be16(ip->i_depth); |
ad6203f2 | 974 | str->di_entries = cpu_to_be32(ip->i_entries); |
bb8d8a6f | 975 | |
3767ac21 | 976 | str->di_eattr = cpu_to_be64(ip->i_eattr); |
4bd91ba1 SW |
977 | str->di_atime_nsec = cpu_to_be32(ip->i_inode.i_atime.tv_nsec); |
978 | str->di_mtime_nsec = cpu_to_be32(ip->i_inode.i_mtime.tv_nsec); | |
979 | str->di_ctime_nsec = cpu_to_be32(ip->i_inode.i_ctime.tv_nsec); | |
bb8d8a6f SW |
980 | } |
981 | ||
982 | void gfs2_dinode_print(const struct gfs2_inode *ip) | |
983 | { | |
bb8d8a6f SW |
984 | printk(KERN_INFO " no_formal_ino = %llu\n", |
985 | (unsigned long long)ip->i_no_formal_ino); | |
986 | printk(KERN_INFO " no_addr = %llu\n", | |
987 | (unsigned long long)ip->i_no_addr); | |
c9e98886 SW |
988 | printk(KERN_INFO " i_disksize = %llu\n", |
989 | (unsigned long long)ip->i_disksize); | |
77658aad SW |
990 | printk(KERN_INFO " blocks = %llu\n", |
991 | (unsigned long long)gfs2_get_inode_blocks(&ip->i_inode)); | |
ce276b06 SW |
992 | printk(KERN_INFO " i_goal = %llu\n", |
993 | (unsigned long long)ip->i_goal); | |
383f01fb | 994 | printk(KERN_INFO " i_diskflags = 0x%.8X\n", ip->i_diskflags); |
ca390601 | 995 | printk(KERN_INFO " i_height = %u\n", ip->i_height); |
9a004508 | 996 | printk(KERN_INFO " i_depth = %u\n", ip->i_depth); |
ad6203f2 | 997 | printk(KERN_INFO " i_entries = %u\n", ip->i_entries); |
3767ac21 SW |
998 | printk(KERN_INFO " i_eattr = %llu\n", |
999 | (unsigned long long)ip->i_eattr); | |
bb8d8a6f SW |
1000 | } |
1001 |