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Luca's patch ported
[cbs-scheduler.git] / fs / xfs / linux-2.6 / xfs_ioctl32.c
blobc70c4e3db7900adfbb2ceb9506a3a0a5ac688787
1 /*
2 * Copyright (c) 2004-2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
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
7 * published by the Free Software Foundation.
8 *
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.
13 *
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
17 */
18 #include <linux/compat.h>
19 #include <linux/ioctl.h>
20 #include <linux/mount.h>
21 #include <asm/uaccess.h>
22 #include "xfs.h"
23 #include "xfs_fs.h"
24 #include "xfs_bit.h"
25 #include "xfs_log.h"
26 #include "xfs_inum.h"
27 #include "xfs_trans.h"
28 #include "xfs_sb.h"
29 #include "xfs_ag.h"
30 #include "xfs_dir2.h"
31 #include "xfs_dmapi.h"
32 #include "xfs_mount.h"
33 #include "xfs_bmap_btree.h"
34 #include "xfs_attr_sf.h"
35 #include "xfs_dir2_sf.h"
36 #include "xfs_vnode.h"
37 #include "xfs_dinode.h"
38 #include "xfs_inode.h"
39 #include "xfs_itable.h"
40 #include "xfs_error.h"
41 #include "xfs_dfrag.h"
42 #include "xfs_vnodeops.h"
43 #include "xfs_fsops.h"
44 #include "xfs_alloc.h"
45 #include "xfs_rtalloc.h"
46 #include "xfs_attr.h"
47 #include "xfs_ioctl.h"
48 #include "xfs_ioctl32.h"
49
50 #define _NATIVE_IOC(cmd, type) \
51 _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
52
53 #ifdef BROKEN_X86_ALIGNMENT
54 STATIC int
55 xfs_compat_flock64_copyin(
56 xfs_flock64_t *bf,
57 compat_xfs_flock64_t __user *arg32)
58 {
59 if (get_user(bf->l_type, &arg32->l_type) ||
60 get_user(bf->l_whence, &arg32->l_whence) ||
61 get_user(bf->l_start, &arg32->l_start) ||
62 get_user(bf->l_len, &arg32->l_len) ||
63 get_user(bf->l_sysid, &arg32->l_sysid) ||
64 get_user(bf->l_pid, &arg32->l_pid) ||
65 copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32)))
66 return -XFS_ERROR(EFAULT);
67 return 0;
68 }
69
70 STATIC int
71 xfs_compat_ioc_fsgeometry_v1(
72 struct xfs_mount *mp,
73 compat_xfs_fsop_geom_v1_t __user *arg32)
74 {
75 xfs_fsop_geom_t fsgeo;
76 int error;
77
78 error = xfs_fs_geometry(mp, &fsgeo, 3);
79 if (error)
80 return -error;
81 /* The 32-bit variant simply has some padding at the end */
82 if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
83 return -XFS_ERROR(EFAULT);
84 return 0;
85 }
86
87 STATIC int
88 xfs_compat_growfs_data_copyin(
89 struct xfs_growfs_data *in,
90 compat_xfs_growfs_data_t __user *arg32)
91 {
92 if (get_user(in->newblocks, &arg32->newblocks) ||
93 get_user(in->imaxpct, &arg32->imaxpct))
94 return -XFS_ERROR(EFAULT);
95 return 0;
96 }
97
98 STATIC int
99 xfs_compat_growfs_rt_copyin(
100 struct xfs_growfs_rt *in,
101 compat_xfs_growfs_rt_t __user *arg32)
102 {
103 if (get_user(in->newblocks, &arg32->newblocks) ||
104 get_user(in->extsize, &arg32->extsize))
105 return -XFS_ERROR(EFAULT);
106 return 0;
107 }
108
109 STATIC int
110 xfs_inumbers_fmt_compat(
111 void __user *ubuffer,
112 const xfs_inogrp_t *buffer,
113 long count,
114 long *written)
115 {
116 compat_xfs_inogrp_t __user *p32 = ubuffer;
117 long i;
118
119 for (i = 0; i < count; i++) {
120 if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) ||
121 put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
122 put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask))
123 return -XFS_ERROR(EFAULT);
124 }
125 *written = count * sizeof(*p32);
126 return 0;
127 }
128
129 #else
130 #define xfs_inumbers_fmt_compat xfs_inumbers_fmt
131 #endif /* BROKEN_X86_ALIGNMENT */
132
133 STATIC int
134 xfs_ioctl32_bstime_copyin(
135 xfs_bstime_t *bstime,
136 compat_xfs_bstime_t __user *bstime32)
137 {
138 compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */
139
140 if (get_user(sec32, &bstime32->tv_sec) ||
141 get_user(bstime->tv_nsec, &bstime32->tv_nsec))
142 return -XFS_ERROR(EFAULT);
143 bstime->tv_sec = sec32;
144 return 0;
145 }
146
147 /* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
148 STATIC int
149 xfs_ioctl32_bstat_copyin(
150 xfs_bstat_t *bstat,
151 compat_xfs_bstat_t __user *bstat32)
152 {
153 if (get_user(bstat->bs_ino, &bstat32->bs_ino) ||
154 get_user(bstat->bs_mode, &bstat32->bs_mode) ||
155 get_user(bstat->bs_nlink, &bstat32->bs_nlink) ||
156 get_user(bstat->bs_uid, &bstat32->bs_uid) ||
157 get_user(bstat->bs_gid, &bstat32->bs_gid) ||
158 get_user(bstat->bs_rdev, &bstat32->bs_rdev) ||
159 get_user(bstat->bs_blksize, &bstat32->bs_blksize) ||
160 get_user(bstat->bs_size, &bstat32->bs_size) ||
161 xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
162 xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
163 xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
164 get_user(bstat->bs_blocks, &bstat32->bs_size) ||
165 get_user(bstat->bs_xflags, &bstat32->bs_size) ||
166 get_user(bstat->bs_extsize, &bstat32->bs_extsize) ||
167 get_user(bstat->bs_extents, &bstat32->bs_extents) ||
168 get_user(bstat->bs_gen, &bstat32->bs_gen) ||
169 get_user(bstat->bs_projid, &bstat32->bs_projid) ||
170 get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
171 get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) ||
172 get_user(bstat->bs_aextents, &bstat32->bs_aextents))
173 return -XFS_ERROR(EFAULT);
174 return 0;
175 }
176
177 /* XFS_IOC_FSBULKSTAT and friends */
178
179 STATIC int
180 xfs_bstime_store_compat(
181 compat_xfs_bstime_t __user *p32,
182 const xfs_bstime_t *p)
183 {
184 __s32 sec32;
185
186 sec32 = p->tv_sec;
187 if (put_user(sec32, &p32->tv_sec) ||
188 put_user(p->tv_nsec, &p32->tv_nsec))
189 return -XFS_ERROR(EFAULT);
190 return 0;
191 }
192
193 /* Return 0 on success or positive error (to xfs_bulkstat()) */
194 STATIC int
195 xfs_bulkstat_one_fmt_compat(
196 void __user *ubuffer,
197 int ubsize,
198 int *ubused,
199 const xfs_bstat_t *buffer)
200 {
201 compat_xfs_bstat_t __user *p32 = ubuffer;
202
203 if (ubsize < sizeof(*p32))
204 return XFS_ERROR(ENOMEM);
205
206 if (put_user(buffer->bs_ino, &p32->bs_ino) ||
207 put_user(buffer->bs_mode, &p32->bs_mode) ||
208 put_user(buffer->bs_nlink, &p32->bs_nlink) ||
209 put_user(buffer->bs_uid, &p32->bs_uid) ||
210 put_user(buffer->bs_gid, &p32->bs_gid) ||
211 put_user(buffer->bs_rdev, &p32->bs_rdev) ||
212 put_user(buffer->bs_blksize, &p32->bs_blksize) ||
213 put_user(buffer->bs_size, &p32->bs_size) ||
214 xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
215 xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
216 xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
217 put_user(buffer->bs_blocks, &p32->bs_blocks) ||
218 put_user(buffer->bs_xflags, &p32->bs_xflags) ||
219 put_user(buffer->bs_extsize, &p32->bs_extsize) ||
220 put_user(buffer->bs_extents, &p32->bs_extents) ||
221 put_user(buffer->bs_gen, &p32->bs_gen) ||
222 put_user(buffer->bs_projid, &p32->bs_projid) ||
223 put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) ||
224 put_user(buffer->bs_dmstate, &p32->bs_dmstate) ||
225 put_user(buffer->bs_aextents, &p32->bs_aextents))
226 return XFS_ERROR(EFAULT);
227 if (ubused)
228 *ubused = sizeof(*p32);
229 return 0;
230 }
231
232 STATIC int
233 xfs_bulkstat_one_compat(
234 xfs_mount_t *mp, /* mount point for filesystem */
235 xfs_ino_t ino, /* inode number to get data for */
236 void __user *buffer, /* buffer to place output in */
237 int ubsize, /* size of buffer */
238 void *private_data, /* my private data */
239 xfs_daddr_t bno, /* starting bno of inode cluster */
240 int *ubused, /* bytes used by me */
241 void *dibuff, /* on-disk inode buffer */
242 int *stat) /* BULKSTAT_RV_... */
243 {
244 return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
245 xfs_bulkstat_one_fmt_compat, bno,
246 ubused, dibuff, stat);
247 }
248
249 /* copied from xfs_ioctl.c */
250 STATIC int
251 xfs_compat_ioc_bulkstat(
252 xfs_mount_t *mp,
253 unsigned int cmd,
254 compat_xfs_fsop_bulkreq_t __user *p32)
255 {
256 u32 addr;
257 xfs_fsop_bulkreq_t bulkreq;
258 int count; /* # of records returned */
259 xfs_ino_t inlast; /* last inode number */
260 int done;
261 int error;
262
263 /* done = 1 if there are more stats to get and if bulkstat */
264 /* should be called again (unused here, but used in dmapi) */
265
266 if (!capable(CAP_SYS_ADMIN))
267 return -XFS_ERROR(EPERM);
268
269 if (XFS_FORCED_SHUTDOWN(mp))
270 return -XFS_ERROR(EIO);
271
272 if (get_user(addr, &p32->lastip))
273 return -XFS_ERROR(EFAULT);
274 bulkreq.lastip = compat_ptr(addr);
275 if (get_user(bulkreq.icount, &p32->icount) ||
276 get_user(addr, &p32->ubuffer))
277 return -XFS_ERROR(EFAULT);
278 bulkreq.ubuffer = compat_ptr(addr);
279 if (get_user(addr, &p32->ocount))
280 return -XFS_ERROR(EFAULT);
281 bulkreq.ocount = compat_ptr(addr);
282
283 if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
284 return -XFS_ERROR(EFAULT);
285
286 if ((count = bulkreq.icount) <= 0)
287 return -XFS_ERROR(EINVAL);
288
289 if (bulkreq.ubuffer == NULL)
290 return -XFS_ERROR(EINVAL);
291
292 if (cmd == XFS_IOC_FSINUMBERS_32) {
293 error = xfs_inumbers(mp, &inlast, &count,
294 bulkreq.ubuffer, xfs_inumbers_fmt_compat);
295 } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
296 int res;
297
298 error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer,
299 sizeof(compat_xfs_bstat_t),
300 NULL, 0, NULL, NULL, &res);
301 } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
302 error = xfs_bulkstat(mp, &inlast, &count,
303 xfs_bulkstat_one_compat, NULL,
304 sizeof(compat_xfs_bstat_t), bulkreq.ubuffer,
305 BULKSTAT_FG_QUICK, &done);
306 } else
307 error = XFS_ERROR(EINVAL);
308 if (error)
309 return -error;
310
311 if (bulkreq.ocount != NULL) {
312 if (copy_to_user(bulkreq.lastip, &inlast,
313 sizeof(xfs_ino_t)))
314 return -XFS_ERROR(EFAULT);
315
316 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
317 return -XFS_ERROR(EFAULT);
318 }
319
320 return 0;
321 }
322
323 STATIC int
324 xfs_compat_handlereq_copyin(
325 xfs_fsop_handlereq_t *hreq,
326 compat_xfs_fsop_handlereq_t __user *arg32)
327 {
328 compat_xfs_fsop_handlereq_t hreq32;
329
330 if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
331 return -XFS_ERROR(EFAULT);
332
333 hreq->fd = hreq32.fd;
334 hreq->path = compat_ptr(hreq32.path);
335 hreq->oflags = hreq32.oflags;
336 hreq->ihandle = compat_ptr(hreq32.ihandle);
337 hreq->ihandlen = hreq32.ihandlen;
338 hreq->ohandle = compat_ptr(hreq32.ohandle);
339 hreq->ohandlen = compat_ptr(hreq32.ohandlen);
340
341 return 0;
342 }
343
344 STATIC struct dentry *
345 xfs_compat_handlereq_to_dentry(
346 struct file *parfilp,
347 compat_xfs_fsop_handlereq_t *hreq)
348 {
349 return xfs_handle_to_dentry(parfilp,
350 compat_ptr(hreq->ihandle), hreq->ihandlen);
351 }
352
353 STATIC int
354 xfs_compat_attrlist_by_handle(
355 struct file *parfilp,
356 void __user *arg)
357 {
358 int error;
359 attrlist_cursor_kern_t *cursor;
360 compat_xfs_fsop_attrlist_handlereq_t al_hreq;
361 struct dentry *dentry;
362 char *kbuf;
363
364 if (!capable(CAP_SYS_ADMIN))
365 return -XFS_ERROR(EPERM);
366 if (copy_from_user(&al_hreq, arg,
367 sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
368 return -XFS_ERROR(EFAULT);
369 if (al_hreq.buflen > XATTR_LIST_MAX)
370 return -XFS_ERROR(EINVAL);
371
372 /*
373 * Reject flags, only allow namespaces.
374 */
375 if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
376 return -XFS_ERROR(EINVAL);
377
378 dentry = xfs_compat_handlereq_to_dentry(parfilp, &al_hreq.hreq);
379 if (IS_ERR(dentry))
380 return PTR_ERR(dentry);
381
382 error = -ENOMEM;
383 kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL);
384 if (!kbuf)
385 goto out_dput;
386
387 cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
388 error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen,
389 al_hreq.flags, cursor);
390 if (error)
391 goto out_kfree;
392
393 if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
394 error = -EFAULT;
395
396 out_kfree:
397 kfree(kbuf);
398 out_dput:
399 dput(dentry);
400 return error;
401 }
402
403 STATIC int
404 xfs_compat_attrmulti_by_handle(
405 struct file *parfilp,
406 void __user *arg)
407 {
408 int error;
409 compat_xfs_attr_multiop_t *ops;
410 compat_xfs_fsop_attrmulti_handlereq_t am_hreq;
411 struct dentry *dentry;
412 unsigned int i, size;
413 char *attr_name;
414
415 if (!capable(CAP_SYS_ADMIN))
416 return -XFS_ERROR(EPERM);
417 if (copy_from_user(&am_hreq, arg,
418 sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
419 return -XFS_ERROR(EFAULT);
420
421 dentry = xfs_compat_handlereq_to_dentry(parfilp, &am_hreq.hreq);
422 if (IS_ERR(dentry))
423 return PTR_ERR(dentry);
424
425 error = E2BIG;
426 size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
427 if (!size || size > 16 * PAGE_SIZE)
428 goto out_dput;
429
430 error = ENOMEM;
431 ops = kmalloc(size, GFP_KERNEL);
432 if (!ops)
433 goto out_dput;
434
435 error = EFAULT;
436 if (copy_from_user(ops, compat_ptr(am_hreq.ops), size))
437 goto out_kfree_ops;
438
439 attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
440 if (!attr_name)
441 goto out_kfree_ops;
442
443
444 error = 0;
445 for (i = 0; i < am_hreq.opcount; i++) {
446 ops[i].am_error = strncpy_from_user(attr_name,
447 compat_ptr(ops[i].am_attrname),
448 MAXNAMELEN);
449 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
450 error = -ERANGE;
451 if (ops[i].am_error < 0)
452 break;
453
454 switch (ops[i].am_opcode) {
455 case ATTR_OP_GET:
456 ops[i].am_error = xfs_attrmulti_attr_get(
457 dentry->d_inode, attr_name,
458 compat_ptr(ops[i].am_attrvalue),
459 &ops[i].am_length, ops[i].am_flags);
460 break;
461 case ATTR_OP_SET:
462 ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
463 if (ops[i].am_error)
464 break;
465 ops[i].am_error = xfs_attrmulti_attr_set(
466 dentry->d_inode, attr_name,
467 compat_ptr(ops[i].am_attrvalue),
468 ops[i].am_length, ops[i].am_flags);
469 mnt_drop_write(parfilp->f_path.mnt);
470 break;
471 case ATTR_OP_REMOVE:
472 ops[i].am_error = mnt_want_write(parfilp->f_path.mnt);
473 if (ops[i].am_error)
474 break;
475 ops[i].am_error = xfs_attrmulti_attr_remove(
476 dentry->d_inode, attr_name,
477 ops[i].am_flags);
478 mnt_drop_write(parfilp->f_path.mnt);
479 break;
480 default:
481 ops[i].am_error = EINVAL;
482 }
483 }
484
485 if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
486 error = XFS_ERROR(EFAULT);
487
488 kfree(attr_name);
489 out_kfree_ops:
490 kfree(ops);
491 out_dput:
492 dput(dentry);
493 return -error;
494 }
495
496 STATIC int
497 xfs_compat_fssetdm_by_handle(
498 struct file *parfilp,
499 void __user *arg)
500 {
501 int error;
502 struct fsdmidata fsd;
503 compat_xfs_fsop_setdm_handlereq_t dmhreq;
504 struct dentry *dentry;
505
506 if (!capable(CAP_MKNOD))
507 return -XFS_ERROR(EPERM);
508 if (copy_from_user(&dmhreq, arg,
509 sizeof(compat_xfs_fsop_setdm_handlereq_t)))
510 return -XFS_ERROR(EFAULT);
511
512 dentry = xfs_compat_handlereq_to_dentry(parfilp, &dmhreq.hreq);
513 if (IS_ERR(dentry))
514 return PTR_ERR(dentry);
515
516 if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode)) {
517 error = -XFS_ERROR(EPERM);
518 goto out;
519 }
520
521 if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
522 error = -XFS_ERROR(EFAULT);
523 goto out;
524 }
525
526 error = -xfs_set_dmattrs(XFS_I(dentry->d_inode), fsd.fsd_dmevmask,
527 fsd.fsd_dmstate);
528
529 out:
530 dput(dentry);
531 return error;
532 }
533
534 long
535 xfs_file_compat_ioctl(
536 struct file *filp,
537 unsigned cmd,
538 unsigned long p)
539 {
540 struct inode *inode = filp->f_path.dentry->d_inode;
541 struct xfs_inode *ip = XFS_I(inode);
542 struct xfs_mount *mp = ip->i_mount;
543 void __user *arg = (void __user *)p;
544 int ioflags = 0;
545 int error;
546
547 if (filp->f_mode & FMODE_NOCMTIME)
548 ioflags |= IO_INVIS;
549
550 xfs_itrace_entry(ip);
551
552 switch (cmd) {
553 /* No size or alignment issues on any arch */
554 case XFS_IOC_DIOINFO:
555 case XFS_IOC_FSGEOMETRY:
556 case XFS_IOC_FSGETXATTR:
557 case XFS_IOC_FSSETXATTR:
558 case XFS_IOC_FSGETXATTRA:
559 case XFS_IOC_FSSETDM:
560 case XFS_IOC_GETBMAP:
561 case XFS_IOC_GETBMAPA:
562 case XFS_IOC_GETBMAPX:
563 case XFS_IOC_FSCOUNTS:
564 case XFS_IOC_SET_RESBLKS:
565 case XFS_IOC_GET_RESBLKS:
566 case XFS_IOC_FSGROWFSLOG:
567 case XFS_IOC_GOINGDOWN:
568 case XFS_IOC_ERROR_INJECTION:
569 case XFS_IOC_ERROR_CLEARALL:
570 return xfs_file_ioctl(filp, cmd, p);
571 #ifndef BROKEN_X86_ALIGNMENT
572 /* These are handled fine if no alignment issues */
573 case XFS_IOC_ALLOCSP:
574 case XFS_IOC_FREESP:
575 case XFS_IOC_RESVSP:
576 case XFS_IOC_UNRESVSP:
577 case XFS_IOC_ALLOCSP64:
578 case XFS_IOC_FREESP64:
579 case XFS_IOC_RESVSP64:
580 case XFS_IOC_UNRESVSP64:
581 case XFS_IOC_FSGEOMETRY_V1:
582 case XFS_IOC_FSGROWFSDATA:
583 case XFS_IOC_FSGROWFSRT:
584 return xfs_file_ioctl(filp, cmd, p);
585 #else
586 case XFS_IOC_ALLOCSP_32:
587 case XFS_IOC_FREESP_32:
588 case XFS_IOC_ALLOCSP64_32:
589 case XFS_IOC_FREESP64_32:
590 case XFS_IOC_RESVSP_32:
591 case XFS_IOC_UNRESVSP_32:
592 case XFS_IOC_RESVSP64_32:
593 case XFS_IOC_UNRESVSP64_32: {
594 struct xfs_flock64 bf;
595
596 if (xfs_compat_flock64_copyin(&bf, arg))
597 return -XFS_ERROR(EFAULT);
598 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
599 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
600 }
601 case XFS_IOC_FSGEOMETRY_V1_32:
602 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
603 case XFS_IOC_FSGROWFSDATA_32: {
604 struct xfs_growfs_data in;
605
606 if (xfs_compat_growfs_data_copyin(&in, arg))
607 return -XFS_ERROR(EFAULT);
608 error = xfs_growfs_data(mp, &in);
609 return -error;
610 }
611 case XFS_IOC_FSGROWFSRT_32: {
612 struct xfs_growfs_rt in;
613
614 if (xfs_compat_growfs_rt_copyin(&in, arg))
615 return -XFS_ERROR(EFAULT);
616 error = xfs_growfs_rt(mp, &in);
617 return -error;
618 }
619 #endif
620 /* long changes size, but xfs only copiese out 32 bits */
621 case XFS_IOC_GETXFLAGS_32:
622 case XFS_IOC_SETXFLAGS_32:
623 case XFS_IOC_GETVERSION_32:
624 cmd = _NATIVE_IOC(cmd, long);
625 return xfs_file_ioctl(filp, cmd, p);
626 case XFS_IOC_SWAPEXT: {
627 struct xfs_swapext sxp;
628 struct compat_xfs_swapext __user *sxu = arg;
629
630 /* Bulk copy in up to the sx_stat field, then copy bstat */
631 if (copy_from_user(&sxp, sxu,
632 offsetof(struct xfs_swapext, sx_stat)) ||
633 xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
634 return -XFS_ERROR(EFAULT);
635 error = xfs_swapext(&sxp);
636 return -error;
637 }
638 case XFS_IOC_FSBULKSTAT_32:
639 case XFS_IOC_FSBULKSTAT_SINGLE_32:
640 case XFS_IOC_FSINUMBERS_32:
641 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
642 case XFS_IOC_FD_TO_HANDLE_32:
643 case XFS_IOC_PATH_TO_HANDLE_32:
644 case XFS_IOC_PATH_TO_FSHANDLE_32: {
645 struct xfs_fsop_handlereq hreq;
646
647 if (xfs_compat_handlereq_copyin(&hreq, arg))
648 return -XFS_ERROR(EFAULT);
649 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
650 return xfs_find_handle(cmd, &hreq);
651 }
652 case XFS_IOC_OPEN_BY_HANDLE_32: {
653 struct xfs_fsop_handlereq hreq;
654
655 if (xfs_compat_handlereq_copyin(&hreq, arg))
656 return -XFS_ERROR(EFAULT);
657 return xfs_open_by_handle(filp, &hreq);
658 }
659 case XFS_IOC_READLINK_BY_HANDLE_32: {
660 struct xfs_fsop_handlereq hreq;
661
662 if (xfs_compat_handlereq_copyin(&hreq, arg))
663 return -XFS_ERROR(EFAULT);
664 return xfs_readlink_by_handle(filp, &hreq);
665 }
666 case XFS_IOC_ATTRLIST_BY_HANDLE_32:
667 return xfs_compat_attrlist_by_handle(filp, arg);
668 case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
669 return xfs_compat_attrmulti_by_handle(filp, arg);
670 case XFS_IOC_FSSETDM_BY_HANDLE_32:
671 return xfs_compat_fssetdm_by_handle(filp, arg);
672 default:
673 return -XFS_ERROR(ENOIOCTLCMD);
674 }
675 }
A cbs scheduler for rt-kernel