Commit | Line | Data |
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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
7b718769 NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 | 17 | */ |
1da177e4 | 18 | #include "xfs.h" |
a844f451 | 19 | #include "xfs_bit.h" |
1da177e4 | 20 | #include "xfs_log.h" |
a844f451 | 21 | #include "xfs_inum.h" |
1da177e4 | 22 | #include "xfs_sb.h" |
a844f451 | 23 | #include "xfs_ag.h" |
1da177e4 LT |
24 | #include "xfs_dir.h" |
25 | #include "xfs_dir2.h" | |
26 | #include "xfs_trans.h" | |
27 | #include "xfs_dmapi.h" | |
28 | #include "xfs_mount.h" | |
29 | #include "xfs_bmap_btree.h" | |
30 | #include "xfs_alloc_btree.h" | |
31 | #include "xfs_ialloc_btree.h" | |
32 | #include "xfs_alloc.h" | |
33 | #include "xfs_btree.h" | |
34 | #include "xfs_attr_sf.h" | |
35 | #include "xfs_dir_sf.h" | |
36 | #include "xfs_dir2_sf.h" | |
37 | #include "xfs_dinode.h" | |
38 | #include "xfs_inode.h" | |
39 | #include "xfs_error.h" | |
40 | #include "xfs_rw.h" | |
41 | #include "xfs_ioctl32.h" | |
42 | ||
43 | #include <linux/dcache.h> | |
44 | #include <linux/smp_lock.h> | |
45 | ||
46 | static struct vm_operations_struct linvfs_file_vm_ops; | |
6fac0cb4 DR |
47 | #ifdef CONFIG_XFS_DMAPI |
48 | static struct vm_operations_struct linvfs_dmapi_file_vm_ops; | |
49 | #endif | |
1da177e4 LT |
50 | |
51 | STATIC inline ssize_t | |
52 | __linvfs_read( | |
53 | struct kiocb *iocb, | |
54 | char __user *buf, | |
55 | int ioflags, | |
56 | size_t count, | |
57 | loff_t pos) | |
58 | { | |
59 | struct iovec iov = {buf, count}; | |
60 | struct file *file = iocb->ki_filp; | |
61 | vnode_t *vp = LINVFS_GET_VP(file->f_dentry->d_inode); | |
62 | ssize_t rval; | |
63 | ||
64 | BUG_ON(iocb->ki_pos != pos); | |
65 | ||
66 | if (unlikely(file->f_flags & O_DIRECT)) | |
67 | ioflags |= IO_ISDIRECT; | |
68 | VOP_READ(vp, iocb, &iov, 1, &iocb->ki_pos, ioflags, NULL, rval); | |
69 | return rval; | |
70 | } | |
71 | ||
72 | ||
73 | STATIC ssize_t | |
74 | linvfs_aio_read( | |
75 | struct kiocb *iocb, | |
76 | char __user *buf, | |
77 | size_t count, | |
78 | loff_t pos) | |
79 | { | |
80 | return __linvfs_read(iocb, buf, IO_ISAIO, count, pos); | |
81 | } | |
82 | ||
83 | STATIC ssize_t | |
84 | linvfs_aio_read_invis( | |
85 | struct kiocb *iocb, | |
86 | char __user *buf, | |
87 | size_t count, | |
88 | loff_t pos) | |
89 | { | |
90 | return __linvfs_read(iocb, buf, IO_ISAIO|IO_INVIS, count, pos); | |
91 | } | |
92 | ||
93 | ||
94 | STATIC inline ssize_t | |
95 | __linvfs_write( | |
96 | struct kiocb *iocb, | |
97 | const char __user *buf, | |
98 | int ioflags, | |
99 | size_t count, | |
100 | loff_t pos) | |
101 | { | |
102 | struct iovec iov = {(void __user *)buf, count}; | |
103 | struct file *file = iocb->ki_filp; | |
104 | struct inode *inode = file->f_mapping->host; | |
105 | vnode_t *vp = LINVFS_GET_VP(inode); | |
106 | ssize_t rval; | |
107 | ||
108 | BUG_ON(iocb->ki_pos != pos); | |
109 | if (unlikely(file->f_flags & O_DIRECT)) | |
110 | ioflags |= IO_ISDIRECT; | |
111 | ||
112 | VOP_WRITE(vp, iocb, &iov, 1, &iocb->ki_pos, ioflags, NULL, rval); | |
113 | return rval; | |
114 | } | |
115 | ||
116 | ||
117 | STATIC ssize_t | |
118 | linvfs_aio_write( | |
119 | struct kiocb *iocb, | |
120 | const char __user *buf, | |
121 | size_t count, | |
122 | loff_t pos) | |
123 | { | |
124 | return __linvfs_write(iocb, buf, IO_ISAIO, count, pos); | |
125 | } | |
126 | ||
127 | STATIC ssize_t | |
128 | linvfs_aio_write_invis( | |
129 | struct kiocb *iocb, | |
130 | const char __user *buf, | |
131 | size_t count, | |
132 | loff_t pos) | |
133 | { | |
134 | return __linvfs_write(iocb, buf, IO_ISAIO|IO_INVIS, count, pos); | |
135 | } | |
136 | ||
137 | ||
138 | STATIC inline ssize_t | |
139 | __linvfs_readv( | |
140 | struct file *file, | |
141 | const struct iovec *iov, | |
142 | int ioflags, | |
143 | unsigned long nr_segs, | |
144 | loff_t *ppos) | |
145 | { | |
146 | struct inode *inode = file->f_mapping->host; | |
147 | vnode_t *vp = LINVFS_GET_VP(inode); | |
1f6553f9 | 148 | struct kiocb *kiocb; |
1da177e4 LT |
149 | ssize_t rval; |
150 | ||
1f6553f9 NS |
151 | kiocb = kmalloc(sizeof(*kiocb), GFP_KERNEL); |
152 | if (unlikely(!kiocb)) | |
153 | return -ENOMEM; | |
154 | ||
155 | init_sync_kiocb(kiocb, file); | |
156 | kiocb->ki_pos = *ppos; | |
1da177e4 LT |
157 | |
158 | if (unlikely(file->f_flags & O_DIRECT)) | |
159 | ioflags |= IO_ISDIRECT; | |
1f6553f9 | 160 | VOP_READ(vp, kiocb, iov, nr_segs, &kiocb->ki_pos, ioflags, NULL, rval); |
1da177e4 | 161 | |
1f6553f9 NS |
162 | *ppos = kiocb->ki_pos; |
163 | kfree(kiocb); | |
1da177e4 LT |
164 | return rval; |
165 | } | |
166 | ||
167 | STATIC ssize_t | |
168 | linvfs_readv( | |
169 | struct file *file, | |
170 | const struct iovec *iov, | |
171 | unsigned long nr_segs, | |
172 | loff_t *ppos) | |
173 | { | |
174 | return __linvfs_readv(file, iov, 0, nr_segs, ppos); | |
175 | } | |
176 | ||
177 | STATIC ssize_t | |
178 | linvfs_readv_invis( | |
179 | struct file *file, | |
180 | const struct iovec *iov, | |
181 | unsigned long nr_segs, | |
182 | loff_t *ppos) | |
183 | { | |
184 | return __linvfs_readv(file, iov, IO_INVIS, nr_segs, ppos); | |
185 | } | |
186 | ||
187 | ||
188 | STATIC inline ssize_t | |
189 | __linvfs_writev( | |
190 | struct file *file, | |
191 | const struct iovec *iov, | |
192 | int ioflags, | |
193 | unsigned long nr_segs, | |
194 | loff_t *ppos) | |
195 | { | |
196 | struct inode *inode = file->f_mapping->host; | |
197 | vnode_t *vp = LINVFS_GET_VP(inode); | |
1f6553f9 | 198 | struct kiocb *kiocb; |
1da177e4 LT |
199 | ssize_t rval; |
200 | ||
1f6553f9 NS |
201 | kiocb = kmalloc(sizeof(*kiocb), GFP_KERNEL); |
202 | if (unlikely(!kiocb)) | |
203 | return -ENOMEM; | |
204 | ||
205 | init_sync_kiocb(kiocb, file); | |
206 | kiocb->ki_pos = *ppos; | |
1da177e4 LT |
207 | if (unlikely(file->f_flags & O_DIRECT)) |
208 | ioflags |= IO_ISDIRECT; | |
209 | ||
1f6553f9 | 210 | VOP_WRITE(vp, kiocb, iov, nr_segs, &kiocb->ki_pos, ioflags, NULL, rval); |
1da177e4 | 211 | |
1f6553f9 NS |
212 | *ppos = kiocb->ki_pos; |
213 | kfree(kiocb); | |
1da177e4 LT |
214 | return rval; |
215 | } | |
216 | ||
217 | ||
218 | STATIC ssize_t | |
219 | linvfs_writev( | |
220 | struct file *file, | |
221 | const struct iovec *iov, | |
222 | unsigned long nr_segs, | |
223 | loff_t *ppos) | |
224 | { | |
225 | return __linvfs_writev(file, iov, 0, nr_segs, ppos); | |
226 | } | |
227 | ||
228 | STATIC ssize_t | |
229 | linvfs_writev_invis( | |
230 | struct file *file, | |
231 | const struct iovec *iov, | |
232 | unsigned long nr_segs, | |
233 | loff_t *ppos) | |
234 | { | |
235 | return __linvfs_writev(file, iov, IO_INVIS, nr_segs, ppos); | |
236 | } | |
237 | ||
238 | STATIC ssize_t | |
239 | linvfs_sendfile( | |
240 | struct file *filp, | |
241 | loff_t *ppos, | |
242 | size_t count, | |
243 | read_actor_t actor, | |
244 | void *target) | |
245 | { | |
246 | vnode_t *vp = LINVFS_GET_VP(filp->f_dentry->d_inode); | |
247 | ssize_t rval; | |
248 | ||
249 | VOP_SENDFILE(vp, filp, ppos, 0, count, actor, target, NULL, rval); | |
250 | return rval; | |
251 | } | |
252 | ||
253 | ||
254 | STATIC int | |
255 | linvfs_open( | |
256 | struct inode *inode, | |
257 | struct file *filp) | |
258 | { | |
259 | vnode_t *vp = LINVFS_GET_VP(inode); | |
260 | int error; | |
261 | ||
262 | if (!(filp->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS) | |
263 | return -EFBIG; | |
264 | ||
265 | ASSERT(vp); | |
266 | VOP_OPEN(vp, NULL, error); | |
267 | return -error; | |
268 | } | |
269 | ||
270 | ||
271 | STATIC int | |
272 | linvfs_release( | |
273 | struct inode *inode, | |
274 | struct file *filp) | |
275 | { | |
276 | vnode_t *vp = LINVFS_GET_VP(inode); | |
277 | int error = 0; | |
278 | ||
279 | if (vp) | |
280 | VOP_RELEASE(vp, error); | |
281 | return -error; | |
282 | } | |
283 | ||
284 | ||
285 | STATIC int | |
286 | linvfs_fsync( | |
287 | struct file *filp, | |
288 | struct dentry *dentry, | |
289 | int datasync) | |
290 | { | |
291 | struct inode *inode = dentry->d_inode; | |
292 | vnode_t *vp = LINVFS_GET_VP(inode); | |
293 | int error; | |
294 | int flags = FSYNC_WAIT; | |
295 | ||
296 | if (datasync) | |
297 | flags |= FSYNC_DATA; | |
298 | ||
299 | ASSERT(vp); | |
300 | VOP_FSYNC(vp, flags, NULL, (xfs_off_t)0, (xfs_off_t)-1, error); | |
301 | return -error; | |
302 | } | |
303 | ||
304 | /* | |
305 | * linvfs_readdir maps to VOP_READDIR(). | |
306 | * We need to build a uio, cred, ... | |
307 | */ | |
308 | ||
309 | #define nextdp(dp) ((struct xfs_dirent *)((char *)(dp) + (dp)->d_reclen)) | |
310 | ||
bb3f724e DR |
311 | #ifdef CONFIG_XFS_DMAPI |
312 | ||
313 | STATIC struct page * | |
314 | linvfs_filemap_nopage( | |
315 | struct vm_area_struct *area, | |
316 | unsigned long address, | |
317 | int *type) | |
318 | { | |
319 | struct inode *inode = area->vm_file->f_dentry->d_inode; | |
320 | vnode_t *vp = LINVFS_GET_VP(inode); | |
321 | xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp); | |
322 | int error; | |
323 | ||
324 | ASSERT_ALWAYS(vp->v_vfsp->vfs_flag & VFS_DMI); | |
325 | ||
326 | error = XFS_SEND_MMAP(mp, area, 0); | |
327 | if (error) | |
328 | return NULL; | |
329 | ||
330 | return filemap_nopage(area, address, type); | |
331 | } | |
332 | ||
333 | #endif /* CONFIG_XFS_DMAPI */ | |
334 | ||
335 | ||
1da177e4 LT |
336 | STATIC int |
337 | linvfs_readdir( | |
338 | struct file *filp, | |
339 | void *dirent, | |
340 | filldir_t filldir) | |
341 | { | |
342 | int error = 0; | |
343 | vnode_t *vp; | |
344 | uio_t uio; | |
345 | iovec_t iov; | |
346 | int eof = 0; | |
347 | caddr_t read_buf; | |
348 | int namelen, size = 0; | |
349 | size_t rlen = PAGE_CACHE_SIZE; | |
350 | xfs_off_t start_offset, curr_offset; | |
351 | xfs_dirent_t *dbp = NULL; | |
352 | ||
353 | vp = LINVFS_GET_VP(filp->f_dentry->d_inode); | |
354 | ASSERT(vp); | |
355 | ||
356 | /* Try fairly hard to get memory */ | |
357 | do { | |
358 | if ((read_buf = (caddr_t)kmalloc(rlen, GFP_KERNEL))) | |
359 | break; | |
360 | rlen >>= 1; | |
361 | } while (rlen >= 1024); | |
362 | ||
363 | if (read_buf == NULL) | |
364 | return -ENOMEM; | |
365 | ||
366 | uio.uio_iov = &iov; | |
367 | uio.uio_segflg = UIO_SYSSPACE; | |
368 | curr_offset = filp->f_pos; | |
369 | if (filp->f_pos != 0x7fffffff) | |
370 | uio.uio_offset = filp->f_pos; | |
371 | else | |
372 | uio.uio_offset = 0xffffffff; | |
373 | ||
374 | while (!eof) { | |
375 | uio.uio_resid = iov.iov_len = rlen; | |
376 | iov.iov_base = read_buf; | |
377 | uio.uio_iovcnt = 1; | |
378 | ||
379 | start_offset = uio.uio_offset; | |
380 | ||
381 | VOP_READDIR(vp, &uio, NULL, &eof, error); | |
382 | if ((uio.uio_offset == start_offset) || error) { | |
383 | size = 0; | |
384 | break; | |
385 | } | |
386 | ||
387 | size = rlen - uio.uio_resid; | |
388 | dbp = (xfs_dirent_t *)read_buf; | |
389 | while (size > 0) { | |
390 | namelen = strlen(dbp->d_name); | |
391 | ||
392 | if (filldir(dirent, dbp->d_name, namelen, | |
393 | (loff_t) curr_offset & 0x7fffffff, | |
394 | (ino_t) dbp->d_ino, | |
395 | DT_UNKNOWN)) { | |
396 | goto done; | |
397 | } | |
398 | size -= dbp->d_reclen; | |
399 | curr_offset = (loff_t)dbp->d_off /* & 0x7fffffff */; | |
400 | dbp = nextdp(dbp); | |
401 | } | |
402 | } | |
403 | done: | |
404 | if (!error) { | |
405 | if (size == 0) | |
406 | filp->f_pos = uio.uio_offset & 0x7fffffff; | |
407 | else if (dbp) | |
408 | filp->f_pos = curr_offset; | |
409 | } | |
410 | ||
411 | kfree(read_buf); | |
412 | return -error; | |
413 | } | |
414 | ||
415 | ||
416 | STATIC int | |
417 | linvfs_file_mmap( | |
418 | struct file *filp, | |
419 | struct vm_area_struct *vma) | |
420 | { | |
421 | struct inode *ip = filp->f_dentry->d_inode; | |
422 | vnode_t *vp = LINVFS_GET_VP(ip); | |
423 | vattr_t va = { .va_mask = XFS_AT_UPDATIME }; | |
424 | int error; | |
425 | ||
6fac0cb4 DR |
426 | vma->vm_ops = &linvfs_file_vm_ops; |
427 | ||
6fac0cb4 | 428 | #ifdef CONFIG_XFS_DMAPI |
bb3f724e | 429 | if (vp->v_vfsp->vfs_flag & VFS_DMI) { |
6fac0cb4 | 430 | vma->vm_ops = &linvfs_dmapi_file_vm_ops; |
1da177e4 | 431 | } |
bb3f724e | 432 | #endif /* CONFIG_XFS_DMAPI */ |
1da177e4 | 433 | |
1da177e4 LT |
434 | VOP_SETATTR(vp, &va, XFS_AT_UPDATIME, NULL, error); |
435 | if (!error) | |
436 | vn_revalidate(vp); /* update Linux inode flags */ | |
437 | return 0; | |
438 | } | |
439 | ||
440 | ||
441 | STATIC long | |
442 | linvfs_ioctl( | |
443 | struct file *filp, | |
444 | unsigned int cmd, | |
445 | unsigned long arg) | |
446 | { | |
447 | int error; | |
1f6553f9 | 448 | struct inode *inode = filp->f_dentry->d_inode; |
1da177e4 LT |
449 | vnode_t *vp = LINVFS_GET_VP(inode); |
450 | ||
451 | VOP_IOCTL(vp, inode, filp, 0, cmd, (void __user *)arg, error); | |
452 | VMODIFY(vp); | |
453 | ||
454 | /* NOTE: some of the ioctl's return positive #'s as a | |
455 | * byte count indicating success, such as | |
456 | * readlink_by_handle. So we don't "sign flip" | |
457 | * like most other routines. This means true | |
458 | * errors need to be returned as a negative value. | |
459 | */ | |
460 | return error; | |
461 | } | |
462 | ||
463 | STATIC long | |
464 | linvfs_ioctl_invis( | |
465 | struct file *filp, | |
466 | unsigned int cmd, | |
467 | unsigned long arg) | |
468 | { | |
469 | int error; | |
1f6553f9 | 470 | struct inode *inode = filp->f_dentry->d_inode; |
1da177e4 LT |
471 | vnode_t *vp = LINVFS_GET_VP(inode); |
472 | ||
473 | ASSERT(vp); | |
474 | VOP_IOCTL(vp, inode, filp, IO_INVIS, cmd, (void __user *)arg, error); | |
475 | VMODIFY(vp); | |
476 | ||
477 | /* NOTE: some of the ioctl's return positive #'s as a | |
478 | * byte count indicating success, such as | |
479 | * readlink_by_handle. So we don't "sign flip" | |
480 | * like most other routines. This means true | |
481 | * errors need to be returned as a negative value. | |
482 | */ | |
483 | return error; | |
484 | } | |
485 | ||
bb3f724e | 486 | #ifdef CONFIG_XFS_DMAPI |
1da177e4 LT |
487 | #ifdef HAVE_VMOP_MPROTECT |
488 | STATIC int | |
489 | linvfs_mprotect( | |
490 | struct vm_area_struct *vma, | |
491 | unsigned int newflags) | |
492 | { | |
493 | vnode_t *vp = LINVFS_GET_VP(vma->vm_file->f_dentry->d_inode); | |
494 | int error = 0; | |
495 | ||
496 | if (vp->v_vfsp->vfs_flag & VFS_DMI) { | |
497 | if ((vma->vm_flags & VM_MAYSHARE) && | |
498 | (newflags & VM_WRITE) && !(vma->vm_flags & VM_WRITE)) { | |
499 | xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp); | |
500 | ||
501 | error = XFS_SEND_MMAP(mp, vma, VM_WRITE); | |
502 | } | |
503 | } | |
504 | return error; | |
505 | } | |
506 | #endif /* HAVE_VMOP_MPROTECT */ | |
bb3f724e | 507 | #endif /* CONFIG_XFS_DMAPI */ |
1da177e4 LT |
508 | |
509 | #ifdef HAVE_FOP_OPEN_EXEC | |
510 | /* If the user is attempting to execute a file that is offline then | |
511 | * we have to trigger a DMAPI READ event before the file is marked as busy | |
512 | * otherwise the invisible I/O will not be able to write to the file to bring | |
513 | * it back online. | |
514 | */ | |
515 | STATIC int | |
516 | linvfs_open_exec( | |
517 | struct inode *inode) | |
518 | { | |
519 | vnode_t *vp = LINVFS_GET_VP(inode); | |
520 | xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp); | |
521 | int error = 0; | |
1da177e4 LT |
522 | xfs_inode_t *ip; |
523 | ||
524 | if (vp->v_vfsp->vfs_flag & VFS_DMI) { | |
75e17b3c CH |
525 | ip = xfs_vtoi(vp); |
526 | if (!ip) { | |
1da177e4 LT |
527 | error = -EINVAL; |
528 | goto open_exec_out; | |
529 | } | |
1da177e4 LT |
530 | if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ)) { |
531 | error = -XFS_SEND_DATA(mp, DM_EVENT_READ, vp, | |
532 | 0, 0, 0, NULL); | |
533 | } | |
534 | } | |
535 | open_exec_out: | |
536 | return error; | |
537 | } | |
538 | #endif /* HAVE_FOP_OPEN_EXEC */ | |
539 | ||
540 | struct file_operations linvfs_file_operations = { | |
541 | .llseek = generic_file_llseek, | |
542 | .read = do_sync_read, | |
bb3f724e | 543 | .write = do_sync_write, |
1da177e4 LT |
544 | .readv = linvfs_readv, |
545 | .writev = linvfs_writev, | |
546 | .aio_read = linvfs_aio_read, | |
547 | .aio_write = linvfs_aio_write, | |
548 | .sendfile = linvfs_sendfile, | |
549 | .unlocked_ioctl = linvfs_ioctl, | |
550 | #ifdef CONFIG_COMPAT | |
d3870398 | 551 | .compat_ioctl = linvfs_compat_ioctl, |
1da177e4 LT |
552 | #endif |
553 | .mmap = linvfs_file_mmap, | |
554 | .open = linvfs_open, | |
555 | .release = linvfs_release, | |
556 | .fsync = linvfs_fsync, | |
557 | #ifdef HAVE_FOP_OPEN_EXEC | |
558 | .open_exec = linvfs_open_exec, | |
559 | #endif | |
560 | }; | |
561 | ||
562 | struct file_operations linvfs_invis_file_operations = { | |
563 | .llseek = generic_file_llseek, | |
564 | .read = do_sync_read, | |
bb3f724e | 565 | .write = do_sync_write, |
1da177e4 LT |
566 | .readv = linvfs_readv_invis, |
567 | .writev = linvfs_writev_invis, | |
568 | .aio_read = linvfs_aio_read_invis, | |
569 | .aio_write = linvfs_aio_write_invis, | |
570 | .sendfile = linvfs_sendfile, | |
571 | .unlocked_ioctl = linvfs_ioctl_invis, | |
572 | #ifdef CONFIG_COMPAT | |
d3870398 | 573 | .compat_ioctl = linvfs_compat_invis_ioctl, |
1da177e4 LT |
574 | #endif |
575 | .mmap = linvfs_file_mmap, | |
576 | .open = linvfs_open, | |
577 | .release = linvfs_release, | |
578 | .fsync = linvfs_fsync, | |
579 | }; | |
580 | ||
581 | ||
582 | struct file_operations linvfs_dir_operations = { | |
583 | .read = generic_read_dir, | |
584 | .readdir = linvfs_readdir, | |
585 | .unlocked_ioctl = linvfs_ioctl, | |
d3870398 NS |
586 | #ifdef CONFIG_COMPAT |
587 | .compat_ioctl = linvfs_compat_ioctl, | |
588 | #endif | |
1da177e4 LT |
589 | .fsync = linvfs_fsync, |
590 | }; | |
591 | ||
592 | static struct vm_operations_struct linvfs_file_vm_ops = { | |
593 | .nopage = filemap_nopage, | |
594 | .populate = filemap_populate, | |
6fac0cb4 DR |
595 | }; |
596 | ||
597 | #ifdef CONFIG_XFS_DMAPI | |
598 | static struct vm_operations_struct linvfs_dmapi_file_vm_ops = { | |
bb3f724e | 599 | .nopage = linvfs_filemap_nopage, |
6fac0cb4 | 600 | .populate = filemap_populate, |
1da177e4 LT |
601 | #ifdef HAVE_VMOP_MPROTECT |
602 | .mprotect = linvfs_mprotect, | |
603 | #endif | |
604 | }; | |
6fac0cb4 | 605 | #endif /* CONFIG_XFS_DMAPI */ |