Commit | Line | Data |
---|---|---|
b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
5db11c21 MM |
2 | /* |
3 | * (C) 2001 Clemson University and The University of Chicago | |
afd9fb2a | 4 | * Copyright 2018 Omnibond Systems, L.L.C. |
5db11c21 MM |
5 | * |
6 | * See COPYING in top-level directory. | |
7 | */ | |
8 | ||
9 | /* | |
10 | * Linux VFS inode operations. | |
11 | */ | |
12 | ||
2f8b5444 | 13 | #include <linux/bvec.h> |
5db11c21 | 14 | #include "protocol.h" |
575e9461 MM |
15 | #include "orangefs-kernel.h" |
16 | #include "orangefs-bufmap.h" | |
5db11c21 | 17 | |
52e2d0a3 MB |
18 | static int orangefs_writepage_locked(struct page *page, |
19 | struct writeback_control *wbc) | |
85ac799c MB |
20 | { |
21 | struct inode *inode = page->mapping->host; | |
52e2d0a3 | 22 | struct orangefs_write_range *wr = NULL; |
85ac799c MB |
23 | struct iov_iter iter; |
24 | struct bio_vec bv; | |
25 | size_t len, wlen; | |
26 | ssize_t ret; | |
27 | loff_t off; | |
28 | ||
29 | set_page_writeback(page); | |
30 | ||
85ac799c | 31 | len = i_size_read(inode); |
52e2d0a3 MB |
32 | if (PagePrivate(page)) { |
33 | wr = (struct orangefs_write_range *)page_private(page); | |
8f04e1be | 34 | WARN_ON(wr->pos >= len); |
52e2d0a3 MB |
35 | off = wr->pos; |
36 | if (off + wr->len > len) | |
37 | wlen = len - off; | |
38 | else | |
39 | wlen = wr->len; | |
40 | } else { | |
41 | WARN_ON(1); | |
42 | off = page_offset(page); | |
43 | if (off + PAGE_SIZE > len) | |
44 | wlen = len - off; | |
45 | else | |
46 | wlen = PAGE_SIZE; | |
85ac799c | 47 | } |
52e2d0a3 MB |
48 | /* Should've been handled in orangefs_invalidatepage. */ |
49 | WARN_ON(off == len || off + wlen > len); | |
85ac799c MB |
50 | |
51 | bv.bv_page = page; | |
52 | bv.bv_len = wlen; | |
53 | bv.bv_offset = off % PAGE_SIZE; | |
52e2d0a3 | 54 | WARN_ON(wlen == 0); |
85ac799c MB |
55 | iov_iter_bvec(&iter, WRITE, &bv, 1, wlen); |
56 | ||
57 | ret = wait_for_direct_io(ORANGEFS_IO_WRITE, inode, &off, &iter, wlen, | |
f9bbb682 | 58 | len, wr, NULL, NULL); |
85ac799c MB |
59 | if (ret < 0) { |
60 | SetPageError(page); | |
61 | mapping_set_error(page->mapping, ret); | |
62 | } else { | |
63 | ret = 0; | |
64 | } | |
52e2d0a3 MB |
65 | if (wr) { |
66 | kfree(wr); | |
67 | set_page_private(page, 0); | |
68 | ClearPagePrivate(page); | |
69 | put_page(page); | |
70 | } | |
71 | return ret; | |
72 | } | |
73 | ||
74 | static int orangefs_writepage(struct page *page, struct writeback_control *wbc) | |
75 | { | |
76 | int ret; | |
77 | ret = orangefs_writepage_locked(page, wbc); | |
85ac799c MB |
78 | unlock_page(page); |
79 | end_page_writeback(page); | |
80 | return ret; | |
81 | } | |
82 | ||
8f04e1be MB |
83 | struct orangefs_writepages { |
84 | loff_t off; | |
85 | size_t len; | |
86 | kuid_t uid; | |
87 | kgid_t gid; | |
88 | int maxpages; | |
89 | int npages; | |
90 | struct page **pages; | |
91 | struct bio_vec *bv; | |
92 | }; | |
93 | ||
94 | static int orangefs_writepages_work(struct orangefs_writepages *ow, | |
95 | struct writeback_control *wbc) | |
96 | { | |
97 | struct inode *inode = ow->pages[0]->mapping->host; | |
98 | struct orangefs_write_range *wrp, wr; | |
99 | struct iov_iter iter; | |
100 | ssize_t ret; | |
101 | size_t len; | |
102 | loff_t off; | |
103 | int i; | |
104 | ||
105 | len = i_size_read(inode); | |
106 | ||
107 | for (i = 0; i < ow->npages; i++) { | |
108 | set_page_writeback(ow->pages[i]); | |
109 | ow->bv[i].bv_page = ow->pages[i]; | |
110 | ow->bv[i].bv_len = min(page_offset(ow->pages[i]) + PAGE_SIZE, | |
111 | ow->off + ow->len) - | |
112 | max(ow->off, page_offset(ow->pages[i])); | |
113 | if (i == 0) | |
114 | ow->bv[i].bv_offset = ow->off - | |
115 | page_offset(ow->pages[i]); | |
116 | else | |
117 | ow->bv[i].bv_offset = 0; | |
118 | } | |
119 | iov_iter_bvec(&iter, WRITE, ow->bv, ow->npages, ow->len); | |
120 | ||
121 | WARN_ON(ow->off >= len); | |
122 | if (ow->off + ow->len > len) | |
123 | ow->len = len - ow->off; | |
124 | ||
125 | off = ow->off; | |
126 | wr.uid = ow->uid; | |
127 | wr.gid = ow->gid; | |
128 | ret = wait_for_direct_io(ORANGEFS_IO_WRITE, inode, &off, &iter, ow->len, | |
f9bbb682 | 129 | 0, &wr, NULL, NULL); |
8f04e1be MB |
130 | if (ret < 0) { |
131 | for (i = 0; i < ow->npages; i++) { | |
132 | SetPageError(ow->pages[i]); | |
133 | mapping_set_error(ow->pages[i]->mapping, ret); | |
134 | if (PagePrivate(ow->pages[i])) { | |
135 | wrp = (struct orangefs_write_range *) | |
136 | page_private(ow->pages[i]); | |
137 | ClearPagePrivate(ow->pages[i]); | |
138 | put_page(ow->pages[i]); | |
139 | kfree(wrp); | |
140 | } | |
141 | end_page_writeback(ow->pages[i]); | |
142 | unlock_page(ow->pages[i]); | |
143 | } | |
144 | } else { | |
145 | ret = 0; | |
146 | for (i = 0; i < ow->npages; i++) { | |
147 | if (PagePrivate(ow->pages[i])) { | |
148 | wrp = (struct orangefs_write_range *) | |
149 | page_private(ow->pages[i]); | |
150 | ClearPagePrivate(ow->pages[i]); | |
151 | put_page(ow->pages[i]); | |
152 | kfree(wrp); | |
153 | } | |
154 | end_page_writeback(ow->pages[i]); | |
155 | unlock_page(ow->pages[i]); | |
156 | } | |
157 | } | |
158 | return ret; | |
159 | } | |
160 | ||
161 | static int orangefs_writepages_callback(struct page *page, | |
162 | struct writeback_control *wbc, void *data) | |
163 | { | |
164 | struct orangefs_writepages *ow = data; | |
165 | struct orangefs_write_range *wr; | |
166 | int ret; | |
167 | ||
168 | if (!PagePrivate(page)) { | |
169 | unlock_page(page); | |
170 | /* It's not private so there's nothing to write, right? */ | |
171 | printk("writepages_callback not private!\n"); | |
172 | BUG(); | |
173 | return 0; | |
174 | } | |
175 | wr = (struct orangefs_write_range *)page_private(page); | |
176 | ||
177 | ret = -1; | |
178 | if (ow->npages == 0) { | |
179 | ow->off = wr->pos; | |
180 | ow->len = wr->len; | |
181 | ow->uid = wr->uid; | |
182 | ow->gid = wr->gid; | |
183 | ow->pages[ow->npages++] = page; | |
184 | ret = 0; | |
185 | goto done; | |
186 | } | |
187 | if (!uid_eq(ow->uid, wr->uid) || !gid_eq(ow->gid, wr->gid)) { | |
188 | orangefs_writepages_work(ow, wbc); | |
189 | ow->npages = 0; | |
190 | ret = -1; | |
191 | goto done; | |
192 | } | |
193 | if (ow->off + ow->len == wr->pos) { | |
194 | ow->len += wr->len; | |
195 | ow->pages[ow->npages++] = page; | |
196 | ret = 0; | |
197 | goto done; | |
198 | } | |
199 | done: | |
200 | if (ret == -1) { | |
201 | if (ow->npages) { | |
202 | orangefs_writepages_work(ow, wbc); | |
203 | ow->npages = 0; | |
204 | } | |
205 | ret = orangefs_writepage_locked(page, wbc); | |
206 | mapping_set_error(page->mapping, ret); | |
207 | unlock_page(page); | |
208 | end_page_writeback(page); | |
209 | } else { | |
210 | if (ow->npages == ow->maxpages) { | |
211 | orangefs_writepages_work(ow, wbc); | |
212 | ow->npages = 0; | |
213 | } | |
214 | } | |
215 | return ret; | |
216 | } | |
217 | ||
218 | static int orangefs_writepages(struct address_space *mapping, | |
219 | struct writeback_control *wbc) | |
220 | { | |
221 | struct orangefs_writepages *ow; | |
222 | struct blk_plug plug; | |
223 | int ret; | |
224 | ow = kzalloc(sizeof(struct orangefs_writepages), GFP_KERNEL); | |
225 | if (!ow) | |
226 | return -ENOMEM; | |
227 | ow->maxpages = orangefs_bufmap_size_query()/PAGE_SIZE; | |
228 | ow->pages = kcalloc(ow->maxpages, sizeof(struct page *), GFP_KERNEL); | |
229 | if (!ow->pages) { | |
230 | kfree(ow); | |
231 | return -ENOMEM; | |
232 | } | |
233 | ow->bv = kcalloc(ow->maxpages, sizeof(struct bio_vec), GFP_KERNEL); | |
234 | if (!ow->bv) { | |
235 | kfree(ow->pages); | |
236 | kfree(ow); | |
237 | return -ENOMEM; | |
238 | } | |
239 | blk_start_plug(&plug); | |
240 | ret = write_cache_pages(mapping, wbc, orangefs_writepages_callback, ow); | |
241 | if (ow->npages) | |
242 | ret = orangefs_writepages_work(ow, wbc); | |
243 | blk_finish_plug(&plug); | |
244 | kfree(ow->pages); | |
245 | kfree(ow->bv); | |
246 | kfree(ow); | |
247 | return ret; | |
248 | } | |
249 | ||
dd59a647 MM |
250 | static int orangefs_launder_page(struct page *); |
251 | ||
a68d9c60 | 252 | static int orangefs_readpage(struct file *file, struct page *page) |
5db11c21 | 253 | { |
5db11c21 | 254 | struct inode *inode = page->mapping->host; |
c453dcfc MB |
255 | struct iov_iter iter; |
256 | struct bio_vec bv; | |
257 | ssize_t ret; | |
dd59a647 MM |
258 | loff_t off; /* offset into this page */ |
259 | pgoff_t index; /* which page */ | |
260 | struct page *next_page; | |
261 | char *kaddr; | |
dd59a647 | 262 | loff_t read_size; |
dd59a647 MM |
263 | int buffer_index = -1; /* orangefs shared memory slot */ |
264 | int slot_index; /* index into slot */ | |
265 | int remaining; | |
266 | ||
267 | /* | |
ec95f1de MM |
268 | * Get up to this many bytes from Orangefs at a time and try |
269 | * to fill them into the page cache at once. Tests with dd made | |
270 | * this seem like a reasonable static number, if there was | |
271 | * interest perhaps this number could be made setable through | |
272 | * sysfs... | |
dd59a647 | 273 | */ |
ec95f1de | 274 | read_size = 524288; |
dd59a647 MM |
275 | |
276 | if (PageDirty(page)) | |
277 | orangefs_launder_page(page); | |
c453dcfc MB |
278 | |
279 | off = page_offset(page); | |
dd59a647 | 280 | index = off >> PAGE_SHIFT; |
c453dcfc MB |
281 | bv.bv_page = page; |
282 | bv.bv_len = PAGE_SIZE; | |
283 | bv.bv_offset = 0; | |
284 | iov_iter_bvec(&iter, READ, &bv, 1, PAGE_SIZE); | |
285 | ||
286 | ret = wait_for_direct_io(ORANGEFS_IO_READ, inode, &off, &iter, | |
f9bbb682 | 287 | read_size, inode->i_size, NULL, &buffer_index, file); |
dd59a647 | 288 | remaining = ret; |
74f68fce | 289 | /* this will only zero remaining unread portions of the page data */ |
c453dcfc | 290 | iov_iter_zero(~0U, &iter); |
5db11c21 MM |
291 | /* takes care of potential aliasing */ |
292 | flush_dcache_page(page); | |
c453dcfc | 293 | if (ret < 0) { |
5db11c21 | 294 | SetPageError(page); |
dd59a647 MM |
295 | unlock_page(page); |
296 | goto out; | |
5db11c21 MM |
297 | } else { |
298 | SetPageUptodate(page); | |
299 | if (PageError(page)) | |
300 | ClearPageError(page); | |
301 | ret = 0; | |
302 | } | |
5db11c21 MM |
303 | /* unlock the page after the ->readpage() routine completes */ |
304 | unlock_page(page); | |
dd59a647 MM |
305 | |
306 | if (remaining > PAGE_SIZE) { | |
307 | slot_index = 0; | |
308 | while ((remaining - PAGE_SIZE) >= PAGE_SIZE) { | |
309 | remaining -= PAGE_SIZE; | |
310 | /* | |
311 | * It is an optimization to try and fill more than one | |
312 | * page... by now we've already gotten the single | |
313 | * page we were after, if stuff doesn't seem to | |
314 | * be going our way at this point just return | |
315 | * and hope for the best. | |
316 | * | |
317 | * If we look for pages and they're already there is | |
318 | * one reason to give up, and if they're not there | |
319 | * and we can't create them is another reason. | |
320 | */ | |
321 | ||
322 | index++; | |
323 | slot_index++; | |
324 | next_page = find_get_page(inode->i_mapping, index); | |
325 | if (next_page) { | |
326 | gossip_debug(GOSSIP_FILE_DEBUG, | |
327 | "%s: found next page, quitting\n", | |
328 | __func__); | |
329 | put_page(next_page); | |
330 | goto out; | |
331 | } | |
332 | next_page = find_or_create_page(inode->i_mapping, | |
333 | index, | |
334 | GFP_KERNEL); | |
335 | /* | |
336 | * I've never hit this, leave it as a printk for | |
337 | * now so it will be obvious. | |
338 | */ | |
339 | if (!next_page) { | |
340 | printk("%s: can't create next page, quitting\n", | |
341 | __func__); | |
342 | goto out; | |
343 | } | |
344 | kaddr = kmap_atomic(next_page); | |
345 | orangefs_bufmap_page_fill(kaddr, | |
346 | buffer_index, | |
347 | slot_index); | |
348 | kunmap_atomic(kaddr); | |
349 | SetPageUptodate(next_page); | |
350 | unlock_page(next_page); | |
351 | put_page(next_page); | |
352 | } | |
353 | } | |
354 | ||
355 | out: | |
356 | if (buffer_index != -1) | |
357 | orangefs_bufmap_put(buffer_index); | |
5db11c21 MM |
358 | return ret; |
359 | } | |
360 | ||
52e2d0a3 MB |
361 | static int orangefs_write_begin(struct file *file, |
362 | struct address_space *mapping, | |
363 | loff_t pos, unsigned len, unsigned flags, struct page **pagep, | |
364 | void **fsdata) | |
365 | { | |
366 | struct orangefs_write_range *wr; | |
367 | struct page *page; | |
368 | pgoff_t index; | |
369 | int ret; | |
370 | ||
371 | index = pos >> PAGE_SHIFT; | |
372 | ||
373 | page = grab_cache_page_write_begin(mapping, index, flags); | |
374 | if (!page) | |
375 | return -ENOMEM; | |
376 | ||
377 | *pagep = page; | |
378 | ||
379 | if (PageDirty(page) && !PagePrivate(page)) { | |
380 | /* | |
381 | * Should be impossible. If it happens, launder the page | |
382 | * since we don't know what's dirty. This will WARN in | |
383 | * orangefs_writepage_locked. | |
384 | */ | |
385 | ret = orangefs_launder_page(page); | |
386 | if (ret) | |
387 | return ret; | |
388 | } | |
389 | if (PagePrivate(page)) { | |
390 | struct orangefs_write_range *wr; | |
391 | wr = (struct orangefs_write_range *)page_private(page); | |
392 | if (wr->pos + wr->len == pos && | |
393 | uid_eq(wr->uid, current_fsuid()) && | |
394 | gid_eq(wr->gid, current_fsgid())) { | |
395 | wr->len += len; | |
396 | goto okay; | |
397 | } else { | |
398 | ret = orangefs_launder_page(page); | |
399 | if (ret) | |
400 | return ret; | |
401 | } | |
52e2d0a3 MB |
402 | } |
403 | ||
404 | wr = kmalloc(sizeof *wr, GFP_KERNEL); | |
405 | if (!wr) | |
406 | return -ENOMEM; | |
407 | ||
408 | wr->pos = pos; | |
409 | wr->len = len; | |
410 | wr->uid = current_fsuid(); | |
411 | wr->gid = current_fsgid(); | |
412 | SetPagePrivate(page); | |
413 | set_page_private(page, (unsigned long)wr); | |
414 | get_page(page); | |
415 | okay: | |
52e2d0a3 MB |
416 | return 0; |
417 | } | |
418 | ||
85ac799c MB |
419 | static int orangefs_write_end(struct file *file, struct address_space *mapping, |
420 | loff_t pos, unsigned len, unsigned copied, struct page *page, void *fsdata) | |
421 | { | |
8f04e1be MB |
422 | struct inode *inode = page->mapping->host; |
423 | loff_t last_pos = pos + copied; | |
424 | ||
425 | /* | |
426 | * No need to use i_size_read() here, the i_size | |
427 | * cannot change under us because we hold the i_mutex. | |
428 | */ | |
429 | if (last_pos > inode->i_size) | |
430 | i_size_write(inode, last_pos); | |
431 | ||
432 | /* zero the stale part of the page if we did a short copy */ | |
433 | if (!PageUptodate(page)) { | |
434 | unsigned from = pos & (PAGE_SIZE - 1); | |
435 | if (copied < len) { | |
436 | zero_user(page, from + copied, len - copied); | |
437 | } | |
438 | /* Set fully written pages uptodate. */ | |
439 | if (pos == page_offset(page) && | |
440 | (len == PAGE_SIZE || pos + len == inode->i_size)) { | |
441 | zero_user_segment(page, from + copied, PAGE_SIZE); | |
442 | SetPageUptodate(page); | |
443 | } | |
444 | } | |
445 | ||
446 | set_page_dirty(page); | |
447 | unlock_page(page); | |
448 | put_page(page); | |
449 | ||
85ac799c | 450 | mark_inode_dirty_sync(file_inode(file)); |
8f04e1be | 451 | return copied; |
85ac799c MB |
452 | } |
453 | ||
8bb8aefd | 454 | static void orangefs_invalidatepage(struct page *page, |
5db11c21 MM |
455 | unsigned int offset, |
456 | unsigned int length) | |
457 | { | |
52e2d0a3 MB |
458 | struct orangefs_write_range *wr; |
459 | wr = (struct orangefs_write_range *)page_private(page); | |
460 | ||
461 | if (offset == 0 && length == PAGE_SIZE) { | |
462 | kfree((struct orangefs_write_range *)page_private(page)); | |
463 | set_page_private(page, 0); | |
464 | ClearPagePrivate(page); | |
465 | put_page(page); | |
8f04e1be | 466 | return; |
52e2d0a3 MB |
467 | /* write range entirely within invalidate range (or equal) */ |
468 | } else if (page_offset(page) + offset <= wr->pos && | |
469 | wr->pos + wr->len <= page_offset(page) + offset + length) { | |
470 | kfree((struct orangefs_write_range *)page_private(page)); | |
471 | set_page_private(page, 0); | |
472 | ClearPagePrivate(page); | |
473 | put_page(page); | |
474 | /* XXX is this right? only caller in fs */ | |
475 | cancel_dirty_page(page); | |
8f04e1be | 476 | return; |
52e2d0a3 MB |
477 | /* invalidate range chops off end of write range */ |
478 | } else if (wr->pos < page_offset(page) + offset && | |
479 | wr->pos + wr->len <= page_offset(page) + offset + length && | |
480 | page_offset(page) + offset < wr->pos + wr->len) { | |
481 | size_t x; | |
482 | x = wr->pos + wr->len - (page_offset(page) + offset); | |
483 | WARN_ON(x > wr->len); | |
484 | wr->len -= x; | |
485 | wr->uid = current_fsuid(); | |
486 | wr->gid = current_fsgid(); | |
487 | /* invalidate range chops off beginning of write range */ | |
488 | } else if (page_offset(page) + offset <= wr->pos && | |
489 | page_offset(page) + offset + length < wr->pos + wr->len && | |
490 | wr->pos < page_offset(page) + offset + length) { | |
491 | size_t x; | |
492 | x = page_offset(page) + offset + length - wr->pos; | |
493 | WARN_ON(x > wr->len); | |
494 | wr->pos += x; | |
495 | wr->len -= x; | |
496 | wr->uid = current_fsuid(); | |
497 | wr->gid = current_fsgid(); | |
498 | /* invalidate range entirely within write range (punch hole) */ | |
499 | } else if (wr->pos < page_offset(page) + offset && | |
500 | page_offset(page) + offset + length < wr->pos + wr->len) { | |
501 | /* XXX what do we do here... should not WARN_ON */ | |
502 | WARN_ON(1); | |
503 | /* punch hole */ | |
504 | /* | |
505 | * should we just ignore this and write it out anyway? | |
506 | * it hardly makes sense | |
507 | */ | |
8f04e1be | 508 | return; |
52e2d0a3 MB |
509 | /* non-overlapping ranges */ |
510 | } else { | |
511 | /* WARN if they do overlap */ | |
512 | if (!((page_offset(page) + offset + length <= wr->pos) ^ | |
513 | (wr->pos + wr->len <= page_offset(page) + offset))) { | |
514 | WARN_ON(1); | |
515 | printk("invalidate range offset %llu length %u\n", | |
516 | page_offset(page) + offset, length); | |
517 | printk("write range offset %llu length %zu\n", | |
518 | wr->pos, wr->len); | |
519 | } | |
8f04e1be | 520 | return; |
52e2d0a3 | 521 | } |
8f04e1be MB |
522 | |
523 | /* | |
524 | * Above there are returns where wr is freed or where we WARN. | |
525 | * Thus the following runs if wr was modified above. | |
526 | */ | |
527 | ||
528 | orangefs_launder_page(page); | |
52e2d0a3 | 529 | } |
5db11c21 | 530 | |
52e2d0a3 MB |
531 | static int orangefs_releasepage(struct page *page, gfp_t foo) |
532 | { | |
533 | return !PagePrivate(page); | |
534 | } | |
5db11c21 | 535 | |
52e2d0a3 MB |
536 | static void orangefs_freepage(struct page *page) |
537 | { | |
538 | if (PagePrivate(page)) { | |
539 | kfree((struct orangefs_write_range *)page_private(page)); | |
540 | set_page_private(page, 0); | |
541 | ClearPagePrivate(page); | |
542 | put_page(page); | |
543 | } | |
5db11c21 MM |
544 | } |
545 | ||
52e2d0a3 | 546 | static int orangefs_launder_page(struct page *page) |
5db11c21 | 547 | { |
52e2d0a3 MB |
548 | int r = 0; |
549 | struct writeback_control wbc = { | |
550 | .sync_mode = WB_SYNC_ALL, | |
551 | .nr_to_write = 0, | |
552 | }; | |
553 | wait_on_page_writeback(page); | |
554 | if (clear_page_dirty_for_io(page)) { | |
555 | r = orangefs_writepage_locked(page, &wbc); | |
556 | end_page_writeback(page); | |
557 | } | |
558 | return r; | |
5db11c21 MM |
559 | } |
560 | ||
3903f150 MM |
561 | static ssize_t orangefs_direct_IO(struct kiocb *iocb, |
562 | struct iov_iter *iter) | |
563 | { | |
3e9dfc6e MB |
564 | /* |
565 | * Comment from original do_readv_writev: | |
566 | * Common entry point for read/write/readv/writev | |
567 | * This function will dispatch it to either the direct I/O | |
568 | * or buffered I/O path depending on the mount options and/or | |
569 | * augmented/extended metadata attached to the file. | |
570 | * Note: File extended attributes override any mount options. | |
571 | */ | |
c453dcfc | 572 | struct file *file = iocb->ki_filp; |
3e9dfc6e MB |
573 | loff_t pos = iocb->ki_pos; |
574 | enum ORANGEFS_io_type type = iov_iter_rw(iter) == WRITE ? | |
575 | ORANGEFS_IO_WRITE : ORANGEFS_IO_READ; | |
576 | loff_t *offset = &pos; | |
577 | struct inode *inode = file->f_mapping->host; | |
578 | struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); | |
579 | struct orangefs_khandle *handle = &orangefs_inode->refn.khandle; | |
580 | size_t count = iov_iter_count(iter); | |
3e9dfc6e MB |
581 | ssize_t total_count = 0; |
582 | ssize_t ret = -EINVAL; | |
583 | int i = 0; | |
584 | ||
585 | gossip_debug(GOSSIP_FILE_DEBUG, | |
586 | "%s-BEGIN(%pU): count(%d) after estimate_max_iovecs.\n", | |
587 | __func__, | |
588 | handle, | |
589 | (int)count); | |
590 | ||
591 | if (type == ORANGEFS_IO_WRITE) { | |
592 | gossip_debug(GOSSIP_FILE_DEBUG, | |
593 | "%s(%pU): proceeding with offset : %llu, " | |
594 | "size %d\n", | |
595 | __func__, | |
596 | handle, | |
597 | llu(*offset), | |
598 | (int)count); | |
599 | } | |
600 | ||
601 | if (count == 0) { | |
602 | ret = 0; | |
603 | goto out; | |
604 | } | |
605 | ||
606 | while (iov_iter_count(iter)) { | |
607 | size_t each_count = iov_iter_count(iter); | |
608 | size_t amt_complete; | |
609 | i++; | |
610 | ||
611 | /* how much to transfer in this loop iteration */ | |
612 | if (each_count > orangefs_bufmap_size_query()) | |
613 | each_count = orangefs_bufmap_size_query(); | |
614 | ||
615 | gossip_debug(GOSSIP_FILE_DEBUG, | |
616 | "%s(%pU): size of each_count(%d)\n", | |
617 | __func__, | |
618 | handle, | |
619 | (int)each_count); | |
620 | gossip_debug(GOSSIP_FILE_DEBUG, | |
621 | "%s(%pU): BEFORE wait_for_io: offset is %d\n", | |
622 | __func__, | |
623 | handle, | |
624 | (int)*offset); | |
625 | ||
626 | ret = wait_for_direct_io(type, inode, offset, iter, | |
f9bbb682 | 627 | each_count, 0, NULL, NULL, file); |
3e9dfc6e MB |
628 | gossip_debug(GOSSIP_FILE_DEBUG, |
629 | "%s(%pU): return from wait_for_io:%d\n", | |
630 | __func__, | |
631 | handle, | |
632 | (int)ret); | |
633 | ||
634 | if (ret < 0) | |
635 | goto out; | |
636 | ||
637 | *offset += ret; | |
638 | total_count += ret; | |
639 | amt_complete = ret; | |
640 | ||
641 | gossip_debug(GOSSIP_FILE_DEBUG, | |
642 | "%s(%pU): AFTER wait_for_io: offset is %d\n", | |
643 | __func__, | |
644 | handle, | |
645 | (int)*offset); | |
646 | ||
647 | /* | |
648 | * if we got a short I/O operations, | |
649 | * fall out and return what we got so far | |
650 | */ | |
651 | if (amt_complete < each_count) | |
652 | break; | |
653 | } /*end while */ | |
654 | ||
655 | out: | |
656 | if (total_count > 0) | |
657 | ret = total_count; | |
658 | if (ret > 0) { | |
659 | if (type == ORANGEFS_IO_READ) { | |
660 | file_accessed(file); | |
661 | } else { | |
662 | file_update_time(file); | |
663 | if (*offset > i_size_read(inode)) | |
664 | i_size_write(inode, *offset); | |
665 | } | |
666 | } | |
667 | ||
668 | gossip_debug(GOSSIP_FILE_DEBUG, | |
669 | "%s(%pU): Value(%d) returned.\n", | |
670 | __func__, | |
671 | handle, | |
672 | (int)ret); | |
673 | ||
674 | return ret; | |
3903f150 | 675 | } |
5db11c21 | 676 | |
8bb8aefd | 677 | /** ORANGEFS2 implementation of address space operations */ |
bdd6f083 | 678 | static const struct address_space_operations orangefs_address_operations = { |
85ac799c | 679 | .writepage = orangefs_writepage, |
8bb8aefd | 680 | .readpage = orangefs_readpage, |
8f04e1be | 681 | .writepages = orangefs_writepages, |
85ac799c | 682 | .set_page_dirty = __set_page_dirty_nobuffers, |
52e2d0a3 | 683 | .write_begin = orangefs_write_begin, |
85ac799c | 684 | .write_end = orangefs_write_end, |
8bb8aefd YL |
685 | .invalidatepage = orangefs_invalidatepage, |
686 | .releasepage = orangefs_releasepage, | |
52e2d0a3 MB |
687 | .freepage = orangefs_freepage, |
688 | .launder_page = orangefs_launder_page, | |
3903f150 | 689 | .direct_IO = orangefs_direct_IO, |
5db11c21 MM |
690 | }; |
691 | ||
52e2d0a3 MB |
692 | vm_fault_t orangefs_page_mkwrite(struct vm_fault *vmf) |
693 | { | |
694 | struct page *page = vmf->page; | |
695 | struct inode *inode = file_inode(vmf->vma->vm_file); | |
8f04e1be MB |
696 | struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); |
697 | unsigned long *bitlock = &orangefs_inode->bitlock; | |
698 | vm_fault_t ret; | |
52e2d0a3 MB |
699 | struct orangefs_write_range *wr; |
700 | ||
8f04e1be MB |
701 | sb_start_pagefault(inode->i_sb); |
702 | ||
703 | if (wait_on_bit(bitlock, 1, TASK_KILLABLE)) { | |
704 | ret = VM_FAULT_RETRY; | |
705 | goto out; | |
706 | } | |
707 | ||
52e2d0a3 MB |
708 | lock_page(page); |
709 | if (PageDirty(page) && !PagePrivate(page)) { | |
710 | /* | |
711 | * Should be impossible. If it happens, launder the page | |
712 | * since we don't know what's dirty. This will WARN in | |
713 | * orangefs_writepage_locked. | |
714 | */ | |
715 | if (orangefs_launder_page(page)) { | |
8f04e1be | 716 | ret = VM_FAULT_LOCKED|VM_FAULT_RETRY; |
52e2d0a3 MB |
717 | goto out; |
718 | } | |
719 | } | |
720 | if (PagePrivate(page)) { | |
721 | wr = (struct orangefs_write_range *)page_private(page); | |
722 | if (uid_eq(wr->uid, current_fsuid()) && | |
723 | gid_eq(wr->gid, current_fsgid())) { | |
724 | wr->pos = page_offset(page); | |
725 | wr->len = PAGE_SIZE; | |
726 | goto okay; | |
727 | } else { | |
728 | if (orangefs_launder_page(page)) { | |
8f04e1be | 729 | ret = VM_FAULT_LOCKED|VM_FAULT_RETRY; |
52e2d0a3 MB |
730 | goto out; |
731 | } | |
732 | } | |
733 | } | |
734 | wr = kmalloc(sizeof *wr, GFP_KERNEL); | |
735 | if (!wr) { | |
8f04e1be | 736 | ret = VM_FAULT_LOCKED|VM_FAULT_RETRY; |
52e2d0a3 MB |
737 | goto out; |
738 | } | |
739 | wr->pos = page_offset(page); | |
740 | wr->len = PAGE_SIZE; | |
741 | wr->uid = current_fsuid(); | |
742 | wr->gid = current_fsgid(); | |
743 | SetPagePrivate(page); | |
744 | set_page_private(page, (unsigned long)wr); | |
745 | get_page(page); | |
746 | okay: | |
747 | ||
52e2d0a3 MB |
748 | file_update_time(vmf->vma->vm_file); |
749 | if (page->mapping != inode->i_mapping) { | |
750 | unlock_page(page); | |
8f04e1be | 751 | ret = VM_FAULT_LOCKED|VM_FAULT_NOPAGE; |
52e2d0a3 MB |
752 | goto out; |
753 | } | |
754 | ||
755 | /* | |
756 | * We mark the page dirty already here so that when freeze is in | |
757 | * progress, we are guaranteed that writeback during freezing will | |
758 | * see the dirty page and writeprotect it again. | |
759 | */ | |
760 | set_page_dirty(page); | |
761 | wait_for_stable_page(page); | |
8f04e1be | 762 | ret = VM_FAULT_LOCKED; |
52e2d0a3 MB |
763 | out: |
764 | sb_end_pagefault(inode->i_sb); | |
765 | return ret; | |
766 | } | |
767 | ||
8bb8aefd | 768 | static int orangefs_setattr_size(struct inode *inode, struct iattr *iattr) |
5db11c21 | 769 | { |
8bb8aefd YL |
770 | struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); |
771 | struct orangefs_kernel_op_s *new_op; | |
fecd86aa | 772 | loff_t orig_size; |
5db11c21 MM |
773 | int ret = -EINVAL; |
774 | ||
775 | gossip_debug(GOSSIP_INODE_DEBUG, | |
776 | "%s: %pU: Handle is %pU | fs_id %d | size is %llu\n", | |
777 | __func__, | |
778 | get_khandle_from_ino(inode), | |
8bb8aefd YL |
779 | &orangefs_inode->refn.khandle, |
780 | orangefs_inode->refn.fs_id, | |
5db11c21 MM |
781 | iattr->ia_size); |
782 | ||
fecd86aa | 783 | /* Ensure that we have a up to date size, so we know if it changed. */ |
8b60785c | 784 | ret = orangefs_inode_getattr(inode, ORANGEFS_GETATTR_SIZE); |
fecd86aa MB |
785 | if (ret == -ESTALE) |
786 | ret = -EIO; | |
787 | if (ret) { | |
788 | gossip_err("%s: orangefs_inode_getattr failed, ret:%d:.\n", | |
789 | __func__, ret); | |
790 | return ret; | |
791 | } | |
792 | orig_size = i_size_read(inode); | |
793 | ||
33713cd0 MB |
794 | /* This is truncate_setsize in a different order. */ |
795 | truncate_pagecache(inode, iattr->ia_size); | |
796 | i_size_write(inode, iattr->ia_size); | |
797 | if (iattr->ia_size > orig_size) | |
798 | pagecache_isize_extended(inode, orig_size, iattr->ia_size); | |
5db11c21 | 799 | |
8bb8aefd | 800 | new_op = op_alloc(ORANGEFS_VFS_OP_TRUNCATE); |
5db11c21 MM |
801 | if (!new_op) |
802 | return -ENOMEM; | |
803 | ||
8bb8aefd | 804 | new_op->upcall.req.truncate.refn = orangefs_inode->refn; |
5db11c21 MM |
805 | new_op->upcall.req.truncate.size = (__s64) iattr->ia_size; |
806 | ||
95f5f88f MM |
807 | ret = service_operation(new_op, |
808 | __func__, | |
809 | get_interruptible_flag(inode)); | |
5db11c21 MM |
810 | |
811 | /* | |
812 | * the truncate has no downcall members to retrieve, but | |
813 | * the status value tells us if it went through ok or not | |
814 | */ | |
95f5f88f | 815 | gossip_debug(GOSSIP_INODE_DEBUG, "%s: ret:%d:\n", __func__, ret); |
5db11c21 MM |
816 | |
817 | op_release(new_op); | |
818 | ||
819 | if (ret != 0) | |
820 | return ret; | |
821 | ||
f83140c1 | 822 | if (orig_size != i_size_read(inode)) |
5db11c21 | 823 | iattr->ia_valid |= ATTR_CTIME | ATTR_MTIME; |
5db11c21 MM |
824 | |
825 | return ret; | |
826 | } | |
827 | ||
afd9fb2a | 828 | int __orangefs_setattr(struct inode *inode, struct iattr *iattr) |
5db11c21 | 829 | { |
df2d7337 | 830 | int ret; |
5db11c21 | 831 | |
afd9fb2a MB |
832 | if (iattr->ia_valid & ATTR_MODE) { |
833 | if (iattr->ia_mode & (S_ISVTX)) { | |
834 | if (is_root_handle(inode)) { | |
835 | /* | |
836 | * allow sticky bit to be set on root (since | |
837 | * it shows up that way by default anyhow), | |
838 | * but don't show it to the server | |
839 | */ | |
840 | iattr->ia_mode -= S_ISVTX; | |
841 | } else { | |
842 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
843 | "User attempted to set sticky bit on non-root directory; returning EINVAL.\n"); | |
8f04e1be MB |
844 | ret = -EINVAL; |
845 | goto out; | |
afd9fb2a MB |
846 | } |
847 | } | |
848 | if (iattr->ia_mode & (S_ISUID)) { | |
849 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
850 | "Attempting to set setuid bit (not supported); returning EINVAL.\n"); | |
8f04e1be MB |
851 | ret = -EINVAL; |
852 | goto out; | |
afd9fb2a MB |
853 | } |
854 | } | |
5db11c21 | 855 | |
53950ef5 | 856 | if (iattr->ia_valid & ATTR_SIZE) { |
8bb8aefd | 857 | ret = orangefs_setattr_size(inode, iattr); |
5db11c21 MM |
858 | if (ret) |
859 | goto out; | |
860 | } | |
861 | ||
afd9fb2a MB |
862 | again: |
863 | spin_lock(&inode->i_lock); | |
864 | if (ORANGEFS_I(inode)->attr_valid) { | |
865 | if (uid_eq(ORANGEFS_I(inode)->attr_uid, current_fsuid()) && | |
866 | gid_eq(ORANGEFS_I(inode)->attr_gid, current_fsgid())) { | |
867 | ORANGEFS_I(inode)->attr_valid = iattr->ia_valid; | |
868 | } else { | |
869 | spin_unlock(&inode->i_lock); | |
870 | write_inode_now(inode, 1); | |
871 | goto again; | |
872 | } | |
873 | } else { | |
874 | ORANGEFS_I(inode)->attr_valid = iattr->ia_valid; | |
875 | ORANGEFS_I(inode)->attr_uid = current_fsuid(); | |
876 | ORANGEFS_I(inode)->attr_gid = current_fsgid(); | |
877 | } | |
5db11c21 | 878 | setattr_copy(inode, iattr); |
afd9fb2a | 879 | spin_unlock(&inode->i_lock); |
5db11c21 MM |
880 | mark_inode_dirty(inode); |
881 | ||
df2d7337 | 882 | if (iattr->ia_valid & ATTR_MODE) |
5db11c21 MM |
883 | /* change mod on a file that has ACLs */ |
884 | ret = posix_acl_chmod(inode, inode->i_mode); | |
885 | ||
df2d7337 | 886 | ret = 0; |
5db11c21 | 887 | out: |
afd9fb2a MB |
888 | return ret; |
889 | } | |
890 | ||
891 | /* | |
892 | * Change attributes of an object referenced by dentry. | |
893 | */ | |
894 | int orangefs_setattr(struct dentry *dentry, struct iattr *iattr) | |
895 | { | |
896 | int ret; | |
897 | gossip_debug(GOSSIP_INODE_DEBUG, "__orangefs_setattr: called on %pd\n", | |
898 | dentry); | |
899 | ret = setattr_prepare(dentry, iattr); | |
900 | if (ret) | |
901 | goto out; | |
902 | ret = __orangefs_setattr(d_inode(dentry), iattr); | |
903 | sync_inode_metadata(d_inode(dentry), 1); | |
904 | out: | |
905 | gossip_debug(GOSSIP_INODE_DEBUG, "orangefs_setattr: returning %d\n", | |
906 | ret); | |
5db11c21 MM |
907 | return ret; |
908 | } | |
909 | ||
910 | /* | |
911 | * Obtain attributes of an object given a dentry | |
912 | */ | |
a528d35e DH |
913 | int orangefs_getattr(const struct path *path, struct kstat *stat, |
914 | u32 request_mask, unsigned int flags) | |
5db11c21 | 915 | { |
e6b998ab | 916 | int ret; |
a528d35e | 917 | struct inode *inode = path->dentry->d_inode; |
5db11c21 MM |
918 | |
919 | gossip_debug(GOSSIP_INODE_DEBUG, | |
5e4f606e MB |
920 | "orangefs_getattr: called on %pd mask %u\n", |
921 | path->dentry, request_mask); | |
5db11c21 | 922 | |
8b60785c MB |
923 | ret = orangefs_inode_getattr(inode, |
924 | request_mask & STATX_SIZE ? ORANGEFS_GETATTR_SIZE : 0); | |
5db11c21 | 925 | if (ret == 0) { |
a528d35e | 926 | generic_fillattr(inode, stat); |
a7d3e78a | 927 | |
5db11c21 | 928 | /* override block size reported to stat */ |
5678b5d6 CH |
929 | if (!(request_mask & STATX_SIZE)) |
930 | stat->result_mask &= ~STATX_SIZE; | |
7f54910f MB |
931 | |
932 | stat->attributes_mask = STATX_ATTR_IMMUTABLE | | |
933 | STATX_ATTR_APPEND; | |
934 | if (inode->i_flags & S_IMMUTABLE) | |
935 | stat->attributes |= STATX_ATTR_IMMUTABLE; | |
936 | if (inode->i_flags & S_APPEND) | |
937 | stat->attributes |= STATX_ATTR_APPEND; | |
5db11c21 MM |
938 | } |
939 | return ret; | |
940 | } | |
941 | ||
933287da MB |
942 | int orangefs_permission(struct inode *inode, int mask) |
943 | { | |
944 | int ret; | |
945 | ||
946 | if (mask & MAY_NOT_BLOCK) | |
947 | return -ECHILD; | |
948 | ||
949 | gossip_debug(GOSSIP_INODE_DEBUG, "%s: refreshing\n", __func__); | |
950 | ||
951 | /* Make sure the permission (and other common attrs) are up to date. */ | |
8b60785c | 952 | ret = orangefs_inode_getattr(inode, 0); |
933287da MB |
953 | if (ret < 0) |
954 | return ret; | |
955 | ||
956 | return generic_permission(inode, mask); | |
957 | } | |
958 | ||
95582b00 | 959 | int orangefs_update_time(struct inode *inode, struct timespec64 *time, int flags) |
a55f2d86 MB |
960 | { |
961 | struct iattr iattr; | |
962 | gossip_debug(GOSSIP_INODE_DEBUG, "orangefs_update_time: %pU\n", | |
963 | get_khandle_from_ino(inode)); | |
964 | generic_update_time(inode, time, flags); | |
965 | memset(&iattr, 0, sizeof iattr); | |
966 | if (flags & S_ATIME) | |
967 | iattr.ia_valid |= ATTR_ATIME; | |
968 | if (flags & S_CTIME) | |
969 | iattr.ia_valid |= ATTR_CTIME; | |
970 | if (flags & S_MTIME) | |
971 | iattr.ia_valid |= ATTR_MTIME; | |
afd9fb2a | 972 | return __orangefs_setattr(inode, &iattr); |
a55f2d86 MB |
973 | } |
974 | ||
95f5f88f | 975 | /* ORANGEFS2 implementation of VFS inode operations for files */ |
bdd6f083 | 976 | static const struct inode_operations orangefs_file_inode_operations = { |
8bb8aefd YL |
977 | .get_acl = orangefs_get_acl, |
978 | .set_acl = orangefs_set_acl, | |
979 | .setattr = orangefs_setattr, | |
980 | .getattr = orangefs_getattr, | |
8bb8aefd | 981 | .listxattr = orangefs_listxattr, |
933287da | 982 | .permission = orangefs_permission, |
a55f2d86 | 983 | .update_time = orangefs_update_time, |
5db11c21 MM |
984 | }; |
985 | ||
8bb8aefd | 986 | static int orangefs_init_iops(struct inode *inode) |
5db11c21 | 987 | { |
8bb8aefd | 988 | inode->i_mapping->a_ops = &orangefs_address_operations; |
5db11c21 MM |
989 | |
990 | switch (inode->i_mode & S_IFMT) { | |
991 | case S_IFREG: | |
8bb8aefd YL |
992 | inode->i_op = &orangefs_file_inode_operations; |
993 | inode->i_fop = &orangefs_file_operations; | |
5db11c21 MM |
994 | break; |
995 | case S_IFLNK: | |
8bb8aefd | 996 | inode->i_op = &orangefs_symlink_inode_operations; |
5db11c21 MM |
997 | break; |
998 | case S_IFDIR: | |
8bb8aefd YL |
999 | inode->i_op = &orangefs_dir_inode_operations; |
1000 | inode->i_fop = &orangefs_dir_operations; | |
5db11c21 MM |
1001 | break; |
1002 | default: | |
1003 | gossip_debug(GOSSIP_INODE_DEBUG, | |
1004 | "%s: unsupported mode\n", | |
1005 | __func__); | |
1006 | return -EINVAL; | |
1007 | } | |
1008 | ||
1009 | return 0; | |
1010 | } | |
1011 | ||
1012 | /* | |
95f5f88f MM |
1013 | * Given an ORANGEFS object identifier (fsid, handle), convert it into |
1014 | * a ino_t type that will be used as a hash-index from where the handle will | |
5db11c21 MM |
1015 | * be searched for in the VFS hash table of inodes. |
1016 | */ | |
8bb8aefd | 1017 | static inline ino_t orangefs_handle_hash(struct orangefs_object_kref *ref) |
5db11c21 MM |
1018 | { |
1019 | if (!ref) | |
1020 | return 0; | |
8bb8aefd | 1021 | return orangefs_khandle_to_ino(&(ref->khandle)); |
5db11c21 MM |
1022 | } |
1023 | ||
1024 | /* | |
1025 | * Called to set up an inode from iget5_locked. | |
1026 | */ | |
8bb8aefd | 1027 | static int orangefs_set_inode(struct inode *inode, void *data) |
5db11c21 | 1028 | { |
8bb8aefd | 1029 | struct orangefs_object_kref *ref = (struct orangefs_object_kref *) data; |
a4c680a0 MB |
1030 | ORANGEFS_I(inode)->refn.fs_id = ref->fs_id; |
1031 | ORANGEFS_I(inode)->refn.khandle = ref->khandle; | |
afd9fb2a | 1032 | ORANGEFS_I(inode)->attr_valid = 0; |
fc2e2e9c | 1033 | hash_init(ORANGEFS_I(inode)->xattr_cache); |
8f04e1be MB |
1034 | ORANGEFS_I(inode)->mapping_time = jiffies - 1; |
1035 | ORANGEFS_I(inode)->bitlock = 0; | |
5db11c21 MM |
1036 | return 0; |
1037 | } | |
1038 | ||
1039 | /* | |
1040 | * Called to determine if handles match. | |
1041 | */ | |
8bb8aefd | 1042 | static int orangefs_test_inode(struct inode *inode, void *data) |
5db11c21 | 1043 | { |
8bb8aefd YL |
1044 | struct orangefs_object_kref *ref = (struct orangefs_object_kref *) data; |
1045 | struct orangefs_inode_s *orangefs_inode = NULL; | |
5db11c21 | 1046 | |
8bb8aefd | 1047 | orangefs_inode = ORANGEFS_I(inode); |
95f5f88f MM |
1048 | /* test handles and fs_ids... */ |
1049 | return (!ORANGEFS_khandle_cmp(&(orangefs_inode->refn.khandle), | |
1050 | &(ref->khandle)) && | |
1051 | orangefs_inode->refn.fs_id == ref->fs_id); | |
5db11c21 MM |
1052 | } |
1053 | ||
1054 | /* | |
8bb8aefd | 1055 | * Front-end to lookup the inode-cache maintained by the VFS using the ORANGEFS |
5db11c21 MM |
1056 | * file handle. |
1057 | * | |
1058 | * @sb: the file system super block instance. | |
95f5f88f | 1059 | * @ref: The ORANGEFS object for which we are trying to locate an inode. |
5db11c21 | 1060 | */ |
95f5f88f MM |
1061 | struct inode *orangefs_iget(struct super_block *sb, |
1062 | struct orangefs_object_kref *ref) | |
5db11c21 MM |
1063 | { |
1064 | struct inode *inode = NULL; | |
1065 | unsigned long hash; | |
1066 | int error; | |
1067 | ||
8bb8aefd | 1068 | hash = orangefs_handle_hash(ref); |
95f5f88f MM |
1069 | inode = iget5_locked(sb, |
1070 | hash, | |
1071 | orangefs_test_inode, | |
1072 | orangefs_set_inode, | |
1073 | ref); | |
b5d72cdc MM |
1074 | |
1075 | if (!inode) | |
1076 | return ERR_PTR(-ENOMEM); | |
1077 | ||
1078 | if (!(inode->i_state & I_NEW)) | |
5db11c21 MM |
1079 | return inode; |
1080 | ||
8b60785c | 1081 | error = orangefs_inode_getattr(inode, ORANGEFS_GETATTR_NEW); |
5db11c21 MM |
1082 | if (error) { |
1083 | iget_failed(inode); | |
1084 | return ERR_PTR(error); | |
1085 | } | |
1086 | ||
1087 | inode->i_ino = hash; /* needed for stat etc */ | |
8bb8aefd | 1088 | orangefs_init_iops(inode); |
5db11c21 MM |
1089 | unlock_new_inode(inode); |
1090 | ||
1091 | gossip_debug(GOSSIP_INODE_DEBUG, | |
1092 | "iget handle %pU, fsid %d hash %ld i_ino %lu\n", | |
1093 | &ref->khandle, | |
1094 | ref->fs_id, | |
1095 | hash, | |
1096 | inode->i_ino); | |
1097 | ||
1098 | return inode; | |
1099 | } | |
1100 | ||
1101 | /* | |
1102 | * Allocate an inode for a newly created file and insert it into the inode hash. | |
1103 | */ | |
8bb8aefd YL |
1104 | struct inode *orangefs_new_inode(struct super_block *sb, struct inode *dir, |
1105 | int mode, dev_t dev, struct orangefs_object_kref *ref) | |
5db11c21 | 1106 | { |
8bb8aefd | 1107 | unsigned long hash = orangefs_handle_hash(ref); |
5db11c21 MM |
1108 | struct inode *inode; |
1109 | int error; | |
1110 | ||
1111 | gossip_debug(GOSSIP_INODE_DEBUG, | |
5253487e MM |
1112 | "%s:(sb is %p | MAJOR(dev)=%u | MINOR(dev)=%u mode=%o)\n", |
1113 | __func__, | |
5db11c21 MM |
1114 | sb, |
1115 | MAJOR(dev), | |
1116 | MINOR(dev), | |
1117 | mode); | |
1118 | ||
1119 | inode = new_inode(sb); | |
1120 | if (!inode) | |
56249998 | 1121 | return ERR_PTR(-ENOMEM); |
5db11c21 | 1122 | |
8bb8aefd | 1123 | orangefs_set_inode(inode, ref); |
5db11c21 MM |
1124 | inode->i_ino = hash; /* needed for stat etc */ |
1125 | ||
8b60785c | 1126 | error = orangefs_inode_getattr(inode, ORANGEFS_GETATTR_NEW); |
5db11c21 MM |
1127 | if (error) |
1128 | goto out_iput; | |
1129 | ||
8bb8aefd | 1130 | orangefs_init_iops(inode); |
5db11c21 MM |
1131 | inode->i_rdev = dev; |
1132 | ||
8bb8aefd | 1133 | error = insert_inode_locked4(inode, hash, orangefs_test_inode, ref); |
5db11c21 MM |
1134 | if (error < 0) |
1135 | goto out_iput; | |
1136 | ||
1137 | gossip_debug(GOSSIP_INODE_DEBUG, | |
1138 | "Initializing ACL's for inode %pU\n", | |
1139 | get_khandle_from_ino(inode)); | |
8bb8aefd | 1140 | orangefs_init_acl(inode, dir); |
5db11c21 MM |
1141 | return inode; |
1142 | ||
1143 | out_iput: | |
1144 | iput(inode); | |
1145 | return ERR_PTR(error); | |
1146 | } |