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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of version 2 of the GNU General Public License as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it would be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
11 | * | |
12 | * Further, this software is distributed without any warranty that it is | |
13 | * free of the rightful claim of any third person regarding infringement | |
14 | * or the like. Any license provided herein, whether implied or | |
15 | * otherwise, applies only to this software file. Patent licenses, if | |
16 | * any, provided herein do not apply to combinations of this program with | |
17 | * other software, or any other product whatsoever. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along | |
20 | * with this program; if not, write the Free Software Foundation, Inc., 59 | |
21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
22 | * | |
23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, | |
24 | * Mountain View, CA 94043, or: | |
25 | * | |
26 | * http://www.sgi.com | |
27 | * | |
28 | * For further information regarding this notice, see: | |
29 | * | |
30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ | |
31 | */ | |
32 | ||
33 | #include "xfs.h" | |
34 | #include "xfs_inum.h" | |
35 | #include "xfs_log.h" | |
36 | #include "xfs_sb.h" | |
37 | #include "xfs_dir.h" | |
38 | #include "xfs_dir2.h" | |
39 | #include "xfs_trans.h" | |
40 | #include "xfs_dmapi.h" | |
41 | #include "xfs_mount.h" | |
42 | #include "xfs_bmap_btree.h" | |
43 | #include "xfs_alloc_btree.h" | |
44 | #include "xfs_ialloc_btree.h" | |
45 | #include "xfs_alloc.h" | |
46 | #include "xfs_btree.h" | |
47 | #include "xfs_attr_sf.h" | |
48 | #include "xfs_dir_sf.h" | |
49 | #include "xfs_dir2_sf.h" | |
50 | #include "xfs_dinode.h" | |
51 | #include "xfs_inode.h" | |
52 | #include "xfs_error.h" | |
53 | #include "xfs_rw.h" | |
54 | #include "xfs_ioctl32.h" | |
55 | ||
56 | #include <linux/dcache.h> | |
57 | #include <linux/smp_lock.h> | |
58 | ||
59 | static struct vm_operations_struct linvfs_file_vm_ops; | |
6fac0cb4 DR |
60 | #ifdef CONFIG_XFS_DMAPI |
61 | static struct vm_operations_struct linvfs_dmapi_file_vm_ops; | |
62 | #endif | |
1da177e4 LT |
63 | |
64 | STATIC inline ssize_t | |
65 | __linvfs_read( | |
66 | struct kiocb *iocb, | |
67 | char __user *buf, | |
68 | int ioflags, | |
69 | size_t count, | |
70 | loff_t pos) | |
71 | { | |
72 | struct iovec iov = {buf, count}; | |
73 | struct file *file = iocb->ki_filp; | |
74 | vnode_t *vp = LINVFS_GET_VP(file->f_dentry->d_inode); | |
75 | ssize_t rval; | |
76 | ||
77 | BUG_ON(iocb->ki_pos != pos); | |
78 | ||
79 | if (unlikely(file->f_flags & O_DIRECT)) | |
80 | ioflags |= IO_ISDIRECT; | |
81 | VOP_READ(vp, iocb, &iov, 1, &iocb->ki_pos, ioflags, NULL, rval); | |
82 | return rval; | |
83 | } | |
84 | ||
85 | ||
86 | STATIC ssize_t | |
87 | linvfs_aio_read( | |
88 | struct kiocb *iocb, | |
89 | char __user *buf, | |
90 | size_t count, | |
91 | loff_t pos) | |
92 | { | |
93 | return __linvfs_read(iocb, buf, IO_ISAIO, count, pos); | |
94 | } | |
95 | ||
96 | STATIC ssize_t | |
97 | linvfs_aio_read_invis( | |
98 | struct kiocb *iocb, | |
99 | char __user *buf, | |
100 | size_t count, | |
101 | loff_t pos) | |
102 | { | |
103 | return __linvfs_read(iocb, buf, IO_ISAIO|IO_INVIS, count, pos); | |
104 | } | |
105 | ||
106 | ||
107 | STATIC inline ssize_t | |
108 | __linvfs_write( | |
109 | struct kiocb *iocb, | |
110 | const char __user *buf, | |
111 | int ioflags, | |
112 | size_t count, | |
113 | loff_t pos) | |
114 | { | |
115 | struct iovec iov = {(void __user *)buf, count}; | |
116 | struct file *file = iocb->ki_filp; | |
117 | struct inode *inode = file->f_mapping->host; | |
118 | vnode_t *vp = LINVFS_GET_VP(inode); | |
119 | ssize_t rval; | |
120 | ||
121 | BUG_ON(iocb->ki_pos != pos); | |
122 | if (unlikely(file->f_flags & O_DIRECT)) | |
123 | ioflags |= IO_ISDIRECT; | |
124 | ||
125 | VOP_WRITE(vp, iocb, &iov, 1, &iocb->ki_pos, ioflags, NULL, rval); | |
126 | return rval; | |
127 | } | |
128 | ||
129 | ||
130 | STATIC ssize_t | |
131 | linvfs_aio_write( | |
132 | struct kiocb *iocb, | |
133 | const char __user *buf, | |
134 | size_t count, | |
135 | loff_t pos) | |
136 | { | |
137 | return __linvfs_write(iocb, buf, IO_ISAIO, count, pos); | |
138 | } | |
139 | ||
140 | STATIC ssize_t | |
141 | linvfs_aio_write_invis( | |
142 | struct kiocb *iocb, | |
143 | const char __user *buf, | |
144 | size_t count, | |
145 | loff_t pos) | |
146 | { | |
147 | return __linvfs_write(iocb, buf, IO_ISAIO|IO_INVIS, count, pos); | |
148 | } | |
149 | ||
150 | ||
151 | STATIC inline ssize_t | |
152 | __linvfs_readv( | |
153 | struct file *file, | |
154 | const struct iovec *iov, | |
155 | int ioflags, | |
156 | unsigned long nr_segs, | |
157 | loff_t *ppos) | |
158 | { | |
159 | struct inode *inode = file->f_mapping->host; | |
160 | vnode_t *vp = LINVFS_GET_VP(inode); | |
161 | struct kiocb kiocb; | |
162 | ssize_t rval; | |
163 | ||
164 | init_sync_kiocb(&kiocb, file); | |
165 | kiocb.ki_pos = *ppos; | |
166 | ||
167 | if (unlikely(file->f_flags & O_DIRECT)) | |
168 | ioflags |= IO_ISDIRECT; | |
169 | VOP_READ(vp, &kiocb, iov, nr_segs, &kiocb.ki_pos, ioflags, NULL, rval); | |
170 | ||
171 | *ppos = kiocb.ki_pos; | |
172 | return rval; | |
173 | } | |
174 | ||
175 | STATIC ssize_t | |
176 | linvfs_readv( | |
177 | struct file *file, | |
178 | const struct iovec *iov, | |
179 | unsigned long nr_segs, | |
180 | loff_t *ppos) | |
181 | { | |
182 | return __linvfs_readv(file, iov, 0, nr_segs, ppos); | |
183 | } | |
184 | ||
185 | STATIC ssize_t | |
186 | linvfs_readv_invis( | |
187 | struct file *file, | |
188 | const struct iovec *iov, | |
189 | unsigned long nr_segs, | |
190 | loff_t *ppos) | |
191 | { | |
192 | return __linvfs_readv(file, iov, IO_INVIS, nr_segs, ppos); | |
193 | } | |
194 | ||
195 | ||
196 | STATIC inline ssize_t | |
197 | __linvfs_writev( | |
198 | struct file *file, | |
199 | const struct iovec *iov, | |
200 | int ioflags, | |
201 | unsigned long nr_segs, | |
202 | loff_t *ppos) | |
203 | { | |
204 | struct inode *inode = file->f_mapping->host; | |
205 | vnode_t *vp = LINVFS_GET_VP(inode); | |
206 | struct kiocb kiocb; | |
207 | ssize_t rval; | |
208 | ||
209 | init_sync_kiocb(&kiocb, file); | |
210 | kiocb.ki_pos = *ppos; | |
211 | if (unlikely(file->f_flags & O_DIRECT)) | |
212 | ioflags |= IO_ISDIRECT; | |
213 | ||
214 | VOP_WRITE(vp, &kiocb, iov, nr_segs, &kiocb.ki_pos, ioflags, NULL, rval); | |
215 | ||
216 | *ppos = kiocb.ki_pos; | |
217 | return rval; | |
218 | } | |
219 | ||
220 | ||
221 | STATIC ssize_t | |
222 | linvfs_writev( | |
223 | struct file *file, | |
224 | const struct iovec *iov, | |
225 | unsigned long nr_segs, | |
226 | loff_t *ppos) | |
227 | { | |
228 | return __linvfs_writev(file, iov, 0, nr_segs, ppos); | |
229 | } | |
230 | ||
231 | STATIC ssize_t | |
232 | linvfs_writev_invis( | |
233 | struct file *file, | |
234 | const struct iovec *iov, | |
235 | unsigned long nr_segs, | |
236 | loff_t *ppos) | |
237 | { | |
238 | return __linvfs_writev(file, iov, IO_INVIS, nr_segs, ppos); | |
239 | } | |
240 | ||
241 | STATIC ssize_t | |
242 | linvfs_sendfile( | |
243 | struct file *filp, | |
244 | loff_t *ppos, | |
245 | size_t count, | |
246 | read_actor_t actor, | |
247 | void *target) | |
248 | { | |
249 | vnode_t *vp = LINVFS_GET_VP(filp->f_dentry->d_inode); | |
250 | ssize_t rval; | |
251 | ||
252 | VOP_SENDFILE(vp, filp, ppos, 0, count, actor, target, NULL, rval); | |
253 | return rval; | |
254 | } | |
255 | ||
256 | ||
257 | STATIC int | |
258 | linvfs_open( | |
259 | struct inode *inode, | |
260 | struct file *filp) | |
261 | { | |
262 | vnode_t *vp = LINVFS_GET_VP(inode); | |
263 | int error; | |
264 | ||
265 | if (!(filp->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS) | |
266 | return -EFBIG; | |
267 | ||
268 | ASSERT(vp); | |
269 | VOP_OPEN(vp, NULL, error); | |
270 | return -error; | |
271 | } | |
272 | ||
273 | ||
274 | STATIC int | |
275 | linvfs_release( | |
276 | struct inode *inode, | |
277 | struct file *filp) | |
278 | { | |
279 | vnode_t *vp = LINVFS_GET_VP(inode); | |
280 | int error = 0; | |
281 | ||
282 | if (vp) | |
283 | VOP_RELEASE(vp, error); | |
284 | return -error; | |
285 | } | |
286 | ||
287 | ||
288 | STATIC int | |
289 | linvfs_fsync( | |
290 | struct file *filp, | |
291 | struct dentry *dentry, | |
292 | int datasync) | |
293 | { | |
294 | struct inode *inode = dentry->d_inode; | |
295 | vnode_t *vp = LINVFS_GET_VP(inode); | |
296 | int error; | |
297 | int flags = FSYNC_WAIT; | |
298 | ||
299 | if (datasync) | |
300 | flags |= FSYNC_DATA; | |
301 | ||
302 | ASSERT(vp); | |
303 | VOP_FSYNC(vp, flags, NULL, (xfs_off_t)0, (xfs_off_t)-1, error); | |
304 | return -error; | |
305 | } | |
306 | ||
307 | /* | |
308 | * linvfs_readdir maps to VOP_READDIR(). | |
309 | * We need to build a uio, cred, ... | |
310 | */ | |
311 | ||
312 | #define nextdp(dp) ((struct xfs_dirent *)((char *)(dp) + (dp)->d_reclen)) | |
313 | ||
314 | STATIC int | |
315 | linvfs_readdir( | |
316 | struct file *filp, | |
317 | void *dirent, | |
318 | filldir_t filldir) | |
319 | { | |
320 | int error = 0; | |
321 | vnode_t *vp; | |
322 | uio_t uio; | |
323 | iovec_t iov; | |
324 | int eof = 0; | |
325 | caddr_t read_buf; | |
326 | int namelen, size = 0; | |
327 | size_t rlen = PAGE_CACHE_SIZE; | |
328 | xfs_off_t start_offset, curr_offset; | |
329 | xfs_dirent_t *dbp = NULL; | |
330 | ||
331 | vp = LINVFS_GET_VP(filp->f_dentry->d_inode); | |
332 | ASSERT(vp); | |
333 | ||
334 | /* Try fairly hard to get memory */ | |
335 | do { | |
336 | if ((read_buf = (caddr_t)kmalloc(rlen, GFP_KERNEL))) | |
337 | break; | |
338 | rlen >>= 1; | |
339 | } while (rlen >= 1024); | |
340 | ||
341 | if (read_buf == NULL) | |
342 | return -ENOMEM; | |
343 | ||
344 | uio.uio_iov = &iov; | |
345 | uio.uio_segflg = UIO_SYSSPACE; | |
346 | curr_offset = filp->f_pos; | |
347 | if (filp->f_pos != 0x7fffffff) | |
348 | uio.uio_offset = filp->f_pos; | |
349 | else | |
350 | uio.uio_offset = 0xffffffff; | |
351 | ||
352 | while (!eof) { | |
353 | uio.uio_resid = iov.iov_len = rlen; | |
354 | iov.iov_base = read_buf; | |
355 | uio.uio_iovcnt = 1; | |
356 | ||
357 | start_offset = uio.uio_offset; | |
358 | ||
359 | VOP_READDIR(vp, &uio, NULL, &eof, error); | |
360 | if ((uio.uio_offset == start_offset) || error) { | |
361 | size = 0; | |
362 | break; | |
363 | } | |
364 | ||
365 | size = rlen - uio.uio_resid; | |
366 | dbp = (xfs_dirent_t *)read_buf; | |
367 | while (size > 0) { | |
368 | namelen = strlen(dbp->d_name); | |
369 | ||
370 | if (filldir(dirent, dbp->d_name, namelen, | |
371 | (loff_t) curr_offset & 0x7fffffff, | |
372 | (ino_t) dbp->d_ino, | |
373 | DT_UNKNOWN)) { | |
374 | goto done; | |
375 | } | |
376 | size -= dbp->d_reclen; | |
377 | curr_offset = (loff_t)dbp->d_off /* & 0x7fffffff */; | |
378 | dbp = nextdp(dbp); | |
379 | } | |
380 | } | |
381 | done: | |
382 | if (!error) { | |
383 | if (size == 0) | |
384 | filp->f_pos = uio.uio_offset & 0x7fffffff; | |
385 | else if (dbp) | |
386 | filp->f_pos = curr_offset; | |
387 | } | |
388 | ||
389 | kfree(read_buf); | |
390 | return -error; | |
391 | } | |
392 | ||
6fac0cb4 DR |
393 | #ifdef CONFIG_XFS_DMAPI |
394 | STATIC void | |
395 | linvfs_mmap_close( | |
396 | struct vm_area_struct *vma) | |
397 | { | |
398 | xfs_dm_mm_put(vma); | |
399 | } | |
400 | #endif /* CONFIG_XFS_DMAPI */ | |
1da177e4 LT |
401 | |
402 | STATIC int | |
403 | linvfs_file_mmap( | |
404 | struct file *filp, | |
405 | struct vm_area_struct *vma) | |
406 | { | |
407 | struct inode *ip = filp->f_dentry->d_inode; | |
408 | vnode_t *vp = LINVFS_GET_VP(ip); | |
409 | vattr_t va = { .va_mask = XFS_AT_UPDATIME }; | |
410 | int error; | |
411 | ||
6fac0cb4 DR |
412 | vma->vm_ops = &linvfs_file_vm_ops; |
413 | ||
1da177e4 LT |
414 | if (vp->v_vfsp->vfs_flag & VFS_DMI) { |
415 | xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp); | |
416 | ||
417 | error = -XFS_SEND_MMAP(mp, vma, 0); | |
418 | if (error) | |
419 | return error; | |
6fac0cb4 DR |
420 | #ifdef CONFIG_XFS_DMAPI |
421 | vma->vm_ops = &linvfs_dmapi_file_vm_ops; | |
422 | #endif | |
1da177e4 LT |
423 | } |
424 | ||
1da177e4 LT |
425 | VOP_SETATTR(vp, &va, XFS_AT_UPDATIME, NULL, error); |
426 | if (!error) | |
427 | vn_revalidate(vp); /* update Linux inode flags */ | |
428 | return 0; | |
429 | } | |
430 | ||
431 | ||
432 | STATIC long | |
433 | linvfs_ioctl( | |
434 | struct file *filp, | |
435 | unsigned int cmd, | |
436 | unsigned long arg) | |
437 | { | |
438 | int error; | |
439 | struct inode *inode = filp->f_dentry->d_inode; | |
440 | vnode_t *vp = LINVFS_GET_VP(inode); | |
441 | ||
442 | VOP_IOCTL(vp, inode, filp, 0, cmd, (void __user *)arg, error); | |
443 | VMODIFY(vp); | |
444 | ||
445 | /* NOTE: some of the ioctl's return positive #'s as a | |
446 | * byte count indicating success, such as | |
447 | * readlink_by_handle. So we don't "sign flip" | |
448 | * like most other routines. This means true | |
449 | * errors need to be returned as a negative value. | |
450 | */ | |
451 | return error; | |
452 | } | |
453 | ||
454 | STATIC long | |
455 | linvfs_ioctl_invis( | |
456 | struct file *filp, | |
457 | unsigned int cmd, | |
458 | unsigned long arg) | |
459 | { | |
460 | int error; | |
461 | struct inode *inode = filp->f_dentry->d_inode; | |
462 | vnode_t *vp = LINVFS_GET_VP(inode); | |
463 | ||
464 | ASSERT(vp); | |
465 | VOP_IOCTL(vp, inode, filp, IO_INVIS, cmd, (void __user *)arg, error); | |
466 | VMODIFY(vp); | |
467 | ||
468 | /* NOTE: some of the ioctl's return positive #'s as a | |
469 | * byte count indicating success, such as | |
470 | * readlink_by_handle. So we don't "sign flip" | |
471 | * like most other routines. This means true | |
472 | * errors need to be returned as a negative value. | |
473 | */ | |
474 | return error; | |
475 | } | |
476 | ||
477 | #ifdef HAVE_VMOP_MPROTECT | |
478 | STATIC int | |
479 | linvfs_mprotect( | |
480 | struct vm_area_struct *vma, | |
481 | unsigned int newflags) | |
482 | { | |
483 | vnode_t *vp = LINVFS_GET_VP(vma->vm_file->f_dentry->d_inode); | |
484 | int error = 0; | |
485 | ||
486 | if (vp->v_vfsp->vfs_flag & VFS_DMI) { | |
487 | if ((vma->vm_flags & VM_MAYSHARE) && | |
488 | (newflags & VM_WRITE) && !(vma->vm_flags & VM_WRITE)) { | |
489 | xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp); | |
490 | ||
491 | error = XFS_SEND_MMAP(mp, vma, VM_WRITE); | |
492 | } | |
493 | } | |
494 | return error; | |
495 | } | |
496 | #endif /* HAVE_VMOP_MPROTECT */ | |
497 | ||
498 | #ifdef HAVE_FOP_OPEN_EXEC | |
499 | /* If the user is attempting to execute a file that is offline then | |
500 | * we have to trigger a DMAPI READ event before the file is marked as busy | |
501 | * otherwise the invisible I/O will not be able to write to the file to bring | |
502 | * it back online. | |
503 | */ | |
504 | STATIC int | |
505 | linvfs_open_exec( | |
506 | struct inode *inode) | |
507 | { | |
508 | vnode_t *vp = LINVFS_GET_VP(inode); | |
509 | xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp); | |
510 | int error = 0; | |
511 | bhv_desc_t *bdp; | |
512 | xfs_inode_t *ip; | |
513 | ||
514 | if (vp->v_vfsp->vfs_flag & VFS_DMI) { | |
515 | bdp = vn_bhv_lookup(VN_BHV_HEAD(vp), &xfs_vnodeops); | |
516 | if (!bdp) { | |
517 | error = -EINVAL; | |
518 | goto open_exec_out; | |
519 | } | |
520 | ip = XFS_BHVTOI(bdp); | |
521 | if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ)) { | |
522 | error = -XFS_SEND_DATA(mp, DM_EVENT_READ, vp, | |
523 | 0, 0, 0, NULL); | |
524 | } | |
525 | } | |
526 | open_exec_out: | |
527 | return error; | |
528 | } | |
529 | #endif /* HAVE_FOP_OPEN_EXEC */ | |
530 | ||
3f243766 NS |
531 | /* |
532 | * Temporary workaround to the AIO direct IO write problem. | |
533 | * This code can go and we can revert to do_sync_write once | |
534 | * the writepage(s) rework is merged. | |
535 | */ | |
536 | STATIC ssize_t | |
537 | linvfs_write( | |
538 | struct file *filp, | |
539 | const char __user *buf, | |
540 | size_t len, | |
541 | loff_t *ppos) | |
542 | { | |
543 | struct kiocb kiocb; | |
544 | ssize_t ret; | |
545 | ||
546 | init_sync_kiocb(&kiocb, filp); | |
547 | kiocb.ki_pos = *ppos; | |
548 | ret = __linvfs_write(&kiocb, buf, 0, len, kiocb.ki_pos); | |
549 | *ppos = kiocb.ki_pos; | |
550 | return ret; | |
551 | } | |
552 | STATIC ssize_t | |
553 | linvfs_write_invis( | |
554 | struct file *filp, | |
555 | const char __user *buf, | |
556 | size_t len, | |
557 | loff_t *ppos) | |
558 | { | |
559 | struct kiocb kiocb; | |
560 | ssize_t ret; | |
561 | ||
562 | init_sync_kiocb(&kiocb, filp); | |
563 | kiocb.ki_pos = *ppos; | |
564 | ret = __linvfs_write(&kiocb, buf, IO_INVIS, len, kiocb.ki_pos); | |
565 | *ppos = kiocb.ki_pos; | |
566 | return ret; | |
567 | } | |
568 | ||
569 | ||
1da177e4 LT |
570 | struct file_operations linvfs_file_operations = { |
571 | .llseek = generic_file_llseek, | |
572 | .read = do_sync_read, | |
3f243766 | 573 | .write = linvfs_write, |
1da177e4 LT |
574 | .readv = linvfs_readv, |
575 | .writev = linvfs_writev, | |
576 | .aio_read = linvfs_aio_read, | |
577 | .aio_write = linvfs_aio_write, | |
578 | .sendfile = linvfs_sendfile, | |
579 | .unlocked_ioctl = linvfs_ioctl, | |
580 | #ifdef CONFIG_COMPAT | |
d3870398 | 581 | .compat_ioctl = linvfs_compat_ioctl, |
1da177e4 LT |
582 | #endif |
583 | .mmap = linvfs_file_mmap, | |
584 | .open = linvfs_open, | |
585 | .release = linvfs_release, | |
586 | .fsync = linvfs_fsync, | |
587 | #ifdef HAVE_FOP_OPEN_EXEC | |
588 | .open_exec = linvfs_open_exec, | |
589 | #endif | |
590 | }; | |
591 | ||
592 | struct file_operations linvfs_invis_file_operations = { | |
593 | .llseek = generic_file_llseek, | |
594 | .read = do_sync_read, | |
3f243766 | 595 | .write = linvfs_write_invis, |
1da177e4 LT |
596 | .readv = linvfs_readv_invis, |
597 | .writev = linvfs_writev_invis, | |
598 | .aio_read = linvfs_aio_read_invis, | |
599 | .aio_write = linvfs_aio_write_invis, | |
600 | .sendfile = linvfs_sendfile, | |
601 | .unlocked_ioctl = linvfs_ioctl_invis, | |
602 | #ifdef CONFIG_COMPAT | |
d3870398 | 603 | .compat_ioctl = linvfs_compat_invis_ioctl, |
1da177e4 LT |
604 | #endif |
605 | .mmap = linvfs_file_mmap, | |
606 | .open = linvfs_open, | |
607 | .release = linvfs_release, | |
608 | .fsync = linvfs_fsync, | |
609 | }; | |
610 | ||
611 | ||
612 | struct file_operations linvfs_dir_operations = { | |
613 | .read = generic_read_dir, | |
614 | .readdir = linvfs_readdir, | |
615 | .unlocked_ioctl = linvfs_ioctl, | |
d3870398 NS |
616 | #ifdef CONFIG_COMPAT |
617 | .compat_ioctl = linvfs_compat_ioctl, | |
618 | #endif | |
1da177e4 LT |
619 | .fsync = linvfs_fsync, |
620 | }; | |
621 | ||
622 | static struct vm_operations_struct linvfs_file_vm_ops = { | |
623 | .nopage = filemap_nopage, | |
624 | .populate = filemap_populate, | |
6fac0cb4 DR |
625 | }; |
626 | ||
627 | #ifdef CONFIG_XFS_DMAPI | |
628 | static struct vm_operations_struct linvfs_dmapi_file_vm_ops = { | |
629 | .close = linvfs_mmap_close, | |
630 | .nopage = filemap_nopage, | |
631 | .populate = filemap_populate, | |
1da177e4 LT |
632 | #ifdef HAVE_VMOP_MPROTECT |
633 | .mprotect = linvfs_mprotect, | |
634 | #endif | |
635 | }; | |
6fac0cb4 | 636 | #endif /* CONFIG_XFS_DMAPI */ |