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1efb473f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
22 | * Copyright (c) 2011, Lawrence Livermore National Security, LLC. | |
23 | */ | |
24 | ||
25 | ||
119a394a | 26 | #include <sys/dmu_objset.h> |
1efb473f BB |
27 | #include <sys/zfs_vfsops.h> |
28 | #include <sys/zfs_vnops.h> | |
29 | #include <sys/zfs_znode.h> | |
30 | #include <sys/zpl.h> | |
31 | ||
32 | ||
126400a1 BB |
33 | static int |
34 | zpl_open(struct inode *ip, struct file *filp) | |
35 | { | |
81e97e21 | 36 | cred_t *cr = CRED(); |
126400a1 BB |
37 | int error; |
38 | ||
7dc71949 CC |
39 | error = generic_file_open(ip, filp); |
40 | if (error) | |
41 | return (error); | |
42 | ||
81e97e21 | 43 | crhold(cr); |
126400a1 | 44 | error = -zfs_open(ip, filp->f_mode, filp->f_flags, cr); |
81e97e21 | 45 | crfree(cr); |
126400a1 BB |
46 | ASSERT3S(error, <=, 0); |
47 | ||
7dc71949 | 48 | return (error); |
126400a1 BB |
49 | } |
50 | ||
51 | static int | |
52 | zpl_release(struct inode *ip, struct file *filp) | |
53 | { | |
81e97e21 | 54 | cred_t *cr = CRED(); |
126400a1 BB |
55 | int error; |
56 | ||
78d7a5d7 BB |
57 | if (ITOZ(ip)->z_atime_dirty) |
58 | mark_inode_dirty(ip); | |
59 | ||
81e97e21 | 60 | crhold(cr); |
126400a1 | 61 | error = -zfs_close(ip, filp->f_flags, cr); |
81e97e21 | 62 | crfree(cr); |
126400a1 BB |
63 | ASSERT3S(error, <=, 0); |
64 | ||
65 | return (error); | |
66 | } | |
67 | ||
1efb473f | 68 | static int |
0f37d0c8 | 69 | zpl_iterate(struct file *filp, struct dir_context *ctx) |
1efb473f BB |
70 | { |
71 | struct dentry *dentry = filp->f_path.dentry; | |
81e97e21 | 72 | cred_t *cr = CRED(); |
1efb473f BB |
73 | int error; |
74 | ||
81e97e21 | 75 | crhold(cr); |
0f37d0c8 | 76 | error = -zfs_readdir(dentry->d_inode, ctx, cr); |
81e97e21 | 77 | crfree(cr); |
1efb473f BB |
78 | ASSERT3S(error, <=, 0); |
79 | ||
80 | return (error); | |
81 | } | |
82 | ||
0f37d0c8 RY |
83 | #if !defined(HAVE_VFS_ITERATE) |
84 | static int | |
85 | zpl_readdir(struct file *filp, void *dirent, filldir_t filldir) | |
86 | { | |
87 | struct dir_context ctx = DIR_CONTEXT_INIT(dirent, filldir, filp->f_pos); | |
88 | int error; | |
89 | ||
90 | error = zpl_iterate(filp, &ctx); | |
91 | filp->f_pos = ctx.pos; | |
92 | ||
93 | return (error); | |
94 | } | |
95 | #endif /* HAVE_VFS_ITERATE */ | |
96 | ||
adcd70bd | 97 | #if defined(HAVE_FSYNC_WITH_DENTRY) |
3117dd0b | 98 | /* |
adcd70bd BB |
99 | * Linux 2.6.x - 2.6.34 API, |
100 | * Through 2.6.34 the nfsd kernel server would pass a NULL 'file struct *' | |
101 | * to the fops->fsync() hook. For this reason, we must be careful not to | |
102 | * use filp unconditionally. | |
103 | */ | |
104 | static int | |
105 | zpl_fsync(struct file *filp, struct dentry *dentry, int datasync) | |
106 | { | |
107 | cred_t *cr = CRED(); | |
108 | int error; | |
109 | ||
110 | crhold(cr); | |
111 | error = -zfs_fsync(dentry->d_inode, datasync, cr); | |
112 | crfree(cr); | |
113 | ASSERT3S(error, <=, 0); | |
114 | ||
115 | return (error); | |
116 | } | |
117 | ||
118 | #elif defined(HAVE_FSYNC_WITHOUT_DENTRY) | |
119 | /* | |
120 | * Linux 2.6.35 - 3.0 API, | |
121 | * As of 2.6.35 the dentry argument to the fops->fsync() hook was deemed | |
3117dd0b BB |
122 | * redundant. The dentry is still accessible via filp->f_path.dentry, |
123 | * and we are guaranteed that filp will never be NULL. | |
3117dd0b | 124 | */ |
3117dd0b BB |
125 | static int |
126 | zpl_fsync(struct file *filp, int datasync) | |
127 | { | |
adcd70bd BB |
128 | struct inode *inode = filp->f_mapping->host; |
129 | cred_t *cr = CRED(); | |
130 | int error; | |
131 | ||
132 | crhold(cr); | |
133 | error = -zfs_fsync(inode, datasync, cr); | |
134 | crfree(cr); | |
135 | ASSERT3S(error, <=, 0); | |
136 | ||
137 | return (error); | |
138 | } | |
139 | ||
140 | #elif defined(HAVE_FSYNC_RANGE) | |
141 | /* | |
142 | * Linux 3.1 - 3.x API, | |
143 | * As of 3.1 the responsibility to call filemap_write_and_wait_range() has | |
144 | * been pushed down in to the .fsync() vfs hook. Additionally, the i_mutex | |
145 | * lock is no longer held by the caller, for zfs we don't require the lock | |
146 | * to be held so we don't acquire it. | |
147 | */ | |
3117dd0b | 148 | static int |
adcd70bd | 149 | zpl_fsync(struct file *filp, loff_t start, loff_t end, int datasync) |
1efb473f | 150 | { |
adcd70bd | 151 | struct inode *inode = filp->f_mapping->host; |
81e97e21 | 152 | cred_t *cr = CRED(); |
1efb473f BB |
153 | int error; |
154 | ||
adcd70bd BB |
155 | error = filemap_write_and_wait_range(inode->i_mapping, start, end); |
156 | if (error) | |
157 | return (error); | |
158 | ||
81e97e21 | 159 | crhold(cr); |
adcd70bd | 160 | error = -zfs_fsync(inode, datasync, cr); |
81e97e21 | 161 | crfree(cr); |
1efb473f BB |
162 | ASSERT3S(error, <=, 0); |
163 | ||
164 | return (error); | |
165 | } | |
adcd70bd BB |
166 | #else |
167 | #error "Unsupported fops->fsync() implementation" | |
168 | #endif | |
1efb473f BB |
169 | |
170 | ssize_t | |
171 | zpl_read_common(struct inode *ip, const char *buf, size_t len, loff_t pos, | |
d1d7e268 | 172 | uio_seg_t segment, int flags, cred_t *cr) |
1efb473f BB |
173 | { |
174 | int error; | |
e3dc14b8 | 175 | ssize_t read; |
1efb473f BB |
176 | struct iovec iov; |
177 | uio_t uio; | |
178 | ||
179 | iov.iov_base = (void *)buf; | |
180 | iov.iov_len = len; | |
181 | ||
182 | uio.uio_iov = &iov; | |
183 | uio.uio_resid = len; | |
184 | uio.uio_iovcnt = 1; | |
185 | uio.uio_loffset = pos; | |
186 | uio.uio_limit = MAXOFFSET_T; | |
187 | uio.uio_segflg = segment; | |
188 | ||
189 | error = -zfs_read(ip, &uio, flags, cr); | |
190 | if (error < 0) | |
191 | return (error); | |
192 | ||
e3dc14b8 BB |
193 | read = len - uio.uio_resid; |
194 | task_io_account_read(read); | |
195 | ||
196 | return (read); | |
1efb473f BB |
197 | } |
198 | ||
199 | static ssize_t | |
200 | zpl_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos) | |
201 | { | |
81e97e21 | 202 | cred_t *cr = CRED(); |
1efb473f BB |
203 | ssize_t read; |
204 | ||
81e97e21 | 205 | crhold(cr); |
1efb473f BB |
206 | read = zpl_read_common(filp->f_mapping->host, buf, len, *ppos, |
207 | UIO_USERSPACE, filp->f_flags, cr); | |
81e97e21 | 208 | crfree(cr); |
1efb473f BB |
209 | |
210 | if (read < 0) | |
211 | return (read); | |
212 | ||
213 | *ppos += read; | |
214 | return (read); | |
215 | } | |
216 | ||
217 | ssize_t | |
218 | zpl_write_common(struct inode *ip, const char *buf, size_t len, loff_t pos, | |
219 | uio_seg_t segment, int flags, cred_t *cr) | |
220 | { | |
221 | int error; | |
e3dc14b8 | 222 | ssize_t wrote; |
1efb473f BB |
223 | struct iovec iov; |
224 | uio_t uio; | |
225 | ||
226 | iov.iov_base = (void *)buf; | |
227 | iov.iov_len = len; | |
228 | ||
229 | uio.uio_iov = &iov; | |
230 | uio.uio_resid = len, | |
231 | uio.uio_iovcnt = 1; | |
232 | uio.uio_loffset = pos; | |
233 | uio.uio_limit = MAXOFFSET_T; | |
234 | uio.uio_segflg = segment; | |
235 | ||
236 | error = -zfs_write(ip, &uio, flags, cr); | |
237 | if (error < 0) | |
238 | return (error); | |
239 | ||
e3dc14b8 BB |
240 | wrote = len - uio.uio_resid; |
241 | task_io_account_write(wrote); | |
242 | ||
243 | return (wrote); | |
1efb473f BB |
244 | } |
245 | ||
246 | static ssize_t | |
247 | zpl_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos) | |
248 | { | |
81e97e21 | 249 | cred_t *cr = CRED(); |
1efb473f BB |
250 | ssize_t wrote; |
251 | ||
81e97e21 | 252 | crhold(cr); |
1efb473f BB |
253 | wrote = zpl_write_common(filp->f_mapping->host, buf, len, *ppos, |
254 | UIO_USERSPACE, filp->f_flags, cr); | |
81e97e21 | 255 | crfree(cr); |
1efb473f BB |
256 | |
257 | if (wrote < 0) | |
258 | return (wrote); | |
259 | ||
260 | *ppos += wrote; | |
261 | return (wrote); | |
262 | } | |
263 | ||
802e7b5f LD |
264 | static loff_t |
265 | zpl_llseek(struct file *filp, loff_t offset, int whence) | |
266 | { | |
267 | #if defined(SEEK_HOLE) && defined(SEEK_DATA) | |
268 | if (whence == SEEK_DATA || whence == SEEK_HOLE) { | |
269 | struct inode *ip = filp->f_mapping->host; | |
270 | loff_t maxbytes = ip->i_sb->s_maxbytes; | |
271 | loff_t error; | |
272 | ||
273 | spl_inode_lock(ip); | |
274 | error = -zfs_holey(ip, whence, &offset); | |
275 | if (error == 0) | |
276 | error = lseek_execute(filp, ip, offset, maxbytes); | |
277 | spl_inode_unlock(ip); | |
278 | ||
279 | return (error); | |
280 | } | |
281 | #endif /* SEEK_HOLE && SEEK_DATA */ | |
282 | ||
d1d7e268 | 283 | return (generic_file_llseek(filp, offset, whence)); |
802e7b5f LD |
284 | } |
285 | ||
c0d35759 BB |
286 | /* |
287 | * It's worth taking a moment to describe how mmap is implemented | |
288 | * for zfs because it differs considerably from other Linux filesystems. | |
289 | * However, this issue is handled the same way under OpenSolaris. | |
290 | * | |
291 | * The issue is that by design zfs bypasses the Linux page cache and | |
292 | * leaves all caching up to the ARC. This has been shown to work | |
293 | * well for the common read(2)/write(2) case. However, mmap(2) | |
294 | * is problem because it relies on being tightly integrated with the | |
295 | * page cache. To handle this we cache mmap'ed files twice, once in | |
296 | * the ARC and a second time in the page cache. The code is careful | |
297 | * to keep both copies synchronized. | |
298 | * | |
299 | * When a file with an mmap'ed region is written to using write(2) | |
300 | * both the data in the ARC and existing pages in the page cache | |
301 | * are updated. For a read(2) data will be read first from the page | |
302 | * cache then the ARC if needed. Neither a write(2) or read(2) will | |
303 | * will ever result in new pages being added to the page cache. | |
304 | * | |
305 | * New pages are added to the page cache only via .readpage() which | |
306 | * is called when the vfs needs to read a page off disk to back the | |
307 | * virtual memory region. These pages may be modified without | |
308 | * notifying the ARC and will be written out periodically via | |
309 | * .writepage(). This will occur due to either a sync or the usual | |
310 | * page aging behavior. Note because a read(2) of a mmap'ed file | |
311 | * will always check the page cache first even when the ARC is out | |
312 | * of date correct data will still be returned. | |
313 | * | |
314 | * While this implementation ensures correct behavior it does have | |
315 | * have some drawbacks. The most obvious of which is that it | |
316 | * increases the required memory footprint when access mmap'ed | |
317 | * files. It also adds additional complexity to the code keeping | |
318 | * both caches synchronized. | |
319 | * | |
320 | * Longer term it may be possible to cleanly resolve this wart by | |
321 | * mapping page cache pages directly on to the ARC buffers. The | |
322 | * Linux address space operations are flexible enough to allow | |
323 | * selection of which pages back a particular index. The trick | |
324 | * would be working out the details of which subsystem is in | |
325 | * charge, the ARC, the page cache, or both. It may also prove | |
326 | * helpful to move the ARC buffers to a scatter-gather lists | |
327 | * rather than a vmalloc'ed region. | |
328 | */ | |
329 | static int | |
330 | zpl_mmap(struct file *filp, struct vm_area_struct *vma) | |
331 | { | |
e2e7aa2d BB |
332 | struct inode *ip = filp->f_mapping->host; |
333 | znode_t *zp = ITOZ(ip); | |
c0d35759 BB |
334 | int error; |
335 | ||
e2e7aa2d BB |
336 | error = -zfs_map(ip, vma->vm_pgoff, (caddr_t *)vma->vm_start, |
337 | (size_t)(vma->vm_end - vma->vm_start), vma->vm_flags); | |
338 | if (error) | |
339 | return (error); | |
340 | ||
c0d35759 BB |
341 | error = generic_file_mmap(filp, vma); |
342 | if (error) | |
343 | return (error); | |
344 | ||
345 | mutex_enter(&zp->z_lock); | |
346 | zp->z_is_mapped = 1; | |
347 | mutex_exit(&zp->z_lock); | |
348 | ||
349 | return (error); | |
350 | } | |
351 | ||
352 | /* | |
353 | * Populate a page with data for the Linux page cache. This function is | |
354 | * only used to support mmap(2). There will be an identical copy of the | |
355 | * data in the ARC which is kept up to date via .write() and .writepage(). | |
356 | * | |
357 | * Current this function relies on zpl_read_common() and the O_DIRECT | |
358 | * flag to read in a page. This works but the more correct way is to | |
359 | * update zfs_fillpage() to be Linux friendly and use that interface. | |
360 | */ | |
361 | static int | |
362 | zpl_readpage(struct file *filp, struct page *pp) | |
363 | { | |
364 | struct inode *ip; | |
dde471ef | 365 | struct page *pl[1]; |
c0d35759 BB |
366 | int error = 0; |
367 | ||
368 | ASSERT(PageLocked(pp)); | |
369 | ip = pp->mapping->host; | |
dde471ef | 370 | pl[0] = pp; |
c0d35759 | 371 | |
dde471ef | 372 | error = -zfs_getpage(ip, pl, 1); |
c0d35759 | 373 | |
dde471ef PJ |
374 | if (error) { |
375 | SetPageError(pp); | |
376 | ClearPageUptodate(pp); | |
377 | } else { | |
378 | ClearPageError(pp); | |
379 | SetPageUptodate(pp); | |
380 | flush_dcache_page(pp); | |
381 | } | |
c0d35759 | 382 | |
dde471ef | 383 | unlock_page(pp); |
d1d7e268 | 384 | return (error); |
dde471ef | 385 | } |
c0d35759 | 386 | |
f3ab88d6 BB |
387 | /* |
388 | * Populate a set of pages with data for the Linux page cache. This | |
389 | * function will only be called for read ahead and never for demand | |
390 | * paging. For simplicity, the code relies on read_cache_pages() to | |
391 | * correctly lock each page for IO and call zpl_readpage(). | |
392 | */ | |
393 | static int | |
394 | zpl_readpages(struct file *filp, struct address_space *mapping, | |
395 | struct list_head *pages, unsigned nr_pages) | |
396 | { | |
95d9fd02 BB |
397 | return (read_cache_pages(mapping, pages, |
398 | (filler_t *)zpl_readpage, filp)); | |
f3ab88d6 BB |
399 | } |
400 | ||
dde471ef PJ |
401 | int |
402 | zpl_putpage(struct page *pp, struct writeback_control *wbc, void *data) | |
403 | { | |
3c0e5c0f BB |
404 | struct address_space *mapping = data; |
405 | ||
406 | ASSERT(PageLocked(pp)); | |
407 | ASSERT(!PageWriteback(pp)); | |
8630650a BB |
408 | ASSERT(!(current->flags & PF_NOFS)); |
409 | ||
410 | /* | |
411 | * Annotate this call path with a flag that indicates that it is | |
412 | * unsafe to use KM_SLEEP during memory allocations due to the | |
413 | * potential for a deadlock. KM_PUSHPAGE should be used instead. | |
414 | */ | |
415 | current->flags |= PF_NOFS; | |
62c4165a | 416 | (void) zfs_putpage(mapping->host, pp, wbc); |
8630650a | 417 | current->flags &= ~PF_NOFS; |
c0d35759 | 418 | |
3c0e5c0f | 419 | return (0); |
dde471ef | 420 | } |
c0d35759 | 421 | |
dde471ef PJ |
422 | static int |
423 | zpl_writepages(struct address_space *mapping, struct writeback_control *wbc) | |
424 | { | |
119a394a ED |
425 | znode_t *zp = ITOZ(mapping->host); |
426 | zfs_sb_t *zsb = ITOZSB(mapping->host); | |
427 | enum writeback_sync_modes sync_mode; | |
428 | int result; | |
429 | ||
430 | ZFS_ENTER(zsb); | |
431 | if (zsb->z_os->os_sync == ZFS_SYNC_ALWAYS) | |
432 | wbc->sync_mode = WB_SYNC_ALL; | |
433 | ZFS_EXIT(zsb); | |
434 | sync_mode = wbc->sync_mode; | |
435 | ||
436 | /* | |
437 | * We don't want to run write_cache_pages() in SYNC mode here, because | |
438 | * that would make putpage() wait for a single page to be committed to | |
439 | * disk every single time, resulting in atrocious performance. Instead | |
440 | * we run it once in non-SYNC mode so that the ZIL gets all the data, | |
441 | * and then we commit it all in one go. | |
442 | */ | |
443 | wbc->sync_mode = WB_SYNC_NONE; | |
444 | result = write_cache_pages(mapping, wbc, zpl_putpage, mapping); | |
445 | if (sync_mode != wbc->sync_mode) { | |
446 | ZFS_ENTER(zsb); | |
447 | ZFS_VERIFY_ZP(zp); | |
448 | zil_commit(zsb->z_log, zp->z_id); | |
449 | ZFS_EXIT(zsb); | |
450 | ||
451 | /* | |
452 | * We need to call write_cache_pages() again (we can't just | |
453 | * return after the commit) because the previous call in | |
454 | * non-SYNC mode does not guarantee that we got all the dirty | |
455 | * pages (see the implementation of write_cache_pages() for | |
456 | * details). That being said, this is a no-op in most cases. | |
457 | */ | |
458 | wbc->sync_mode = sync_mode; | |
459 | result = write_cache_pages(mapping, wbc, zpl_putpage, mapping); | |
460 | } | |
461 | return (result); | |
c0d35759 BB |
462 | } |
463 | ||
464 | /* | |
465 | * Write out dirty pages to the ARC, this function is only required to | |
466 | * support mmap(2). Mapped pages may be dirtied by memory operations | |
467 | * which never call .write(). These dirty pages are kept in sync with | |
468 | * the ARC buffers via this hook. | |
c0d35759 BB |
469 | */ |
470 | static int | |
471 | zpl_writepage(struct page *pp, struct writeback_control *wbc) | |
472 | { | |
119a394a ED |
473 | if (ITOZSB(pp->mapping->host)->z_os->os_sync == ZFS_SYNC_ALWAYS) |
474 | wbc->sync_mode = WB_SYNC_ALL; | |
475 | ||
476 | return (zpl_putpage(pp, wbc, pp->mapping)); | |
c0d35759 BB |
477 | } |
478 | ||
cb2d1901 ED |
479 | /* |
480 | * The only flag combination which matches the behavior of zfs_space() | |
481 | * is FALLOC_FL_PUNCH_HOLE. This flag was introduced in the 2.6.38 kernel. | |
482 | */ | |
483 | long | |
484 | zpl_fallocate_common(struct inode *ip, int mode, loff_t offset, loff_t len) | |
485 | { | |
486 | cred_t *cr = CRED(); | |
487 | int error = -EOPNOTSUPP; | |
488 | ||
489 | if (mode & FALLOC_FL_KEEP_SIZE) | |
490 | return (-EOPNOTSUPP); | |
491 | ||
492 | crhold(cr); | |
493 | ||
494 | #ifdef FALLOC_FL_PUNCH_HOLE | |
495 | if (mode & FALLOC_FL_PUNCH_HOLE) { | |
496 | flock64_t bf; | |
497 | ||
498 | bf.l_type = F_WRLCK; | |
499 | bf.l_whence = 0; | |
500 | bf.l_start = offset; | |
501 | bf.l_len = len; | |
502 | bf.l_pid = 0; | |
503 | ||
504 | error = -zfs_space(ip, F_FREESP, &bf, FWRITE, offset, cr); | |
505 | } | |
506 | #endif /* FALLOC_FL_PUNCH_HOLE */ | |
507 | ||
508 | crfree(cr); | |
509 | ||
510 | ASSERT3S(error, <=, 0); | |
511 | return (error); | |
512 | } | |
513 | ||
514 | #ifdef HAVE_FILE_FALLOCATE | |
515 | static long | |
516 | zpl_fallocate(struct file *filp, int mode, loff_t offset, loff_t len) | |
517 | { | |
518 | return zpl_fallocate_common(filp->f_path.dentry->d_inode, | |
519 | mode, offset, len); | |
520 | } | |
521 | #endif /* HAVE_FILE_FALLOCATE */ | |
522 | ||
88c28395 BB |
523 | static long |
524 | zpl_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) | |
525 | { | |
526 | switch (cmd) { | |
527 | case ZFS_IOC_GETFLAGS: | |
528 | case ZFS_IOC_SETFLAGS: | |
529 | return (-EOPNOTSUPP); | |
530 | default: | |
531 | return (-ENOTTY); | |
532 | } | |
533 | } | |
534 | ||
535 | #ifdef CONFIG_COMPAT | |
536 | static long | |
537 | zpl_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) | |
538 | { | |
d1d7e268 | 539 | return (zpl_ioctl(filp, cmd, arg)); |
88c28395 BB |
540 | } |
541 | #endif /* CONFIG_COMPAT */ | |
542 | ||
543 | ||
1efb473f | 544 | const struct address_space_operations zpl_address_space_operations = { |
dde471ef | 545 | .readpages = zpl_readpages, |
1efb473f BB |
546 | .readpage = zpl_readpage, |
547 | .writepage = zpl_writepage, | |
d1d7e268 | 548 | .writepages = zpl_writepages, |
1efb473f BB |
549 | }; |
550 | ||
551 | const struct file_operations zpl_file_operations = { | |
126400a1 BB |
552 | .open = zpl_open, |
553 | .release = zpl_release, | |
802e7b5f | 554 | .llseek = zpl_llseek, |
c0d35759 BB |
555 | .read = zpl_read, |
556 | .write = zpl_write, | |
c0d35759 | 557 | .mmap = zpl_mmap, |
1efb473f | 558 | .fsync = zpl_fsync, |
cb2d1901 | 559 | #ifdef HAVE_FILE_FALLOCATE |
d1d7e268 | 560 | .fallocate = zpl_fallocate, |
cb2d1901 | 561 | #endif /* HAVE_FILE_FALLOCATE */ |
d1d7e268 | 562 | .unlocked_ioctl = zpl_ioctl, |
88c28395 | 563 | #ifdef CONFIG_COMPAT |
d1d7e268 | 564 | .compat_ioctl = zpl_compat_ioctl, |
88c28395 | 565 | #endif |
1efb473f BB |
566 | }; |
567 | ||
568 | const struct file_operations zpl_dir_file_operations = { | |
569 | .llseek = generic_file_llseek, | |
570 | .read = generic_read_dir, | |
0f37d0c8 RY |
571 | #ifdef HAVE_VFS_ITERATE |
572 | .iterate = zpl_iterate, | |
573 | #else | |
1efb473f | 574 | .readdir = zpl_readdir, |
0f37d0c8 | 575 | #endif |
1efb473f | 576 | .fsync = zpl_fsync, |
88c28395 BB |
577 | .unlocked_ioctl = zpl_ioctl, |
578 | #ifdef CONFIG_COMPAT | |
579 | .compat_ioctl = zpl_compat_ioctl, | |
580 | #endif | |
1efb473f | 581 | }; |