Commit | Line | Data |
---|---|---|
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" |
1da177e4 | 19 | #include "xfs_fs.h" |
a844f451 | 20 | #include "xfs_bit.h" |
1da177e4 | 21 | #include "xfs_log.h" |
a844f451 | 22 | #include "xfs_inum.h" |
1da177e4 LT |
23 | #include "xfs_trans.h" |
24 | #include "xfs_sb.h" | |
a844f451 | 25 | #include "xfs_ag.h" |
1da177e4 LT |
26 | #include "xfs_dir2.h" |
27 | #include "xfs_alloc.h" | |
28 | #include "xfs_dmapi.h" | |
29 | #include "xfs_mount.h" | |
1da177e4 | 30 | #include "xfs_bmap_btree.h" |
a844f451 | 31 | #include "xfs_alloc_btree.h" |
1da177e4 | 32 | #include "xfs_ialloc_btree.h" |
a844f451 | 33 | #include "xfs_attr_sf.h" |
1da177e4 LT |
34 | #include "xfs_dir2_sf.h" |
35 | #include "xfs_dinode.h" | |
36 | #include "xfs_inode.h" | |
a844f451 NS |
37 | #include "xfs_btree.h" |
38 | #include "xfs_ialloc.h" | |
1da177e4 | 39 | #include "xfs_rtalloc.h" |
1da177e4 | 40 | #include "xfs_itable.h" |
a844f451 | 41 | #include "xfs_error.h" |
1da177e4 LT |
42 | #include "xfs_rw.h" |
43 | #include "xfs_acl.h" | |
1da177e4 | 44 | #include "xfs_attr.h" |
a844f451 | 45 | #include "xfs_bmap.h" |
1da177e4 LT |
46 | #include "xfs_buf_item.h" |
47 | #include "xfs_utils.h" | |
48 | #include "xfs_dfrag.h" | |
49 | #include "xfs_fsops.h" | |
993386c1 | 50 | #include "xfs_vnodeops.h" |
25fe55e8 CH |
51 | #include "xfs_quota.h" |
52 | #include "xfs_inode_item.h" | |
1da177e4 | 53 | |
16f7e0fe | 54 | #include <linux/capability.h> |
1da177e4 LT |
55 | #include <linux/dcache.h> |
56 | #include <linux/mount.h> | |
57 | #include <linux/namei.h> | |
58 | #include <linux/pagemap.h> | |
59 | ||
60 | /* | |
61 | * xfs_find_handle maps from userspace xfs_fsop_handlereq structure to | |
62 | * a file or fs handle. | |
63 | * | |
64 | * XFS_IOC_PATH_TO_FSHANDLE | |
65 | * returns fs handle for a mount point or path within that mount point | |
66 | * XFS_IOC_FD_TO_HANDLE | |
67 | * returns full handle for a FD opened in user space | |
68 | * XFS_IOC_PATH_TO_HANDLE | |
69 | * returns full handle for a path | |
70 | */ | |
71 | STATIC int | |
72 | xfs_find_handle( | |
73 | unsigned int cmd, | |
74 | void __user *arg) | |
75 | { | |
76 | int hsize; | |
77 | xfs_handle_t handle; | |
78 | xfs_fsop_handlereq_t hreq; | |
79 | struct inode *inode; | |
1da177e4 LT |
80 | |
81 | if (copy_from_user(&hreq, arg, sizeof(hreq))) | |
82 | return -XFS_ERROR(EFAULT); | |
83 | ||
84 | memset((char *)&handle, 0, sizeof(handle)); | |
85 | ||
86 | switch (cmd) { | |
87 | case XFS_IOC_PATH_TO_FSHANDLE: | |
88 | case XFS_IOC_PATH_TO_HANDLE: { | |
2d8f3038 AV |
89 | struct path path; |
90 | int error = user_lpath((const char __user *)hreq.path, &path); | |
1da177e4 LT |
91 | if (error) |
92 | return error; | |
93 | ||
2d8f3038 AV |
94 | ASSERT(path.dentry); |
95 | ASSERT(path.dentry->d_inode); | |
96 | inode = igrab(path.dentry->d_inode); | |
97 | path_put(&path); | |
1da177e4 LT |
98 | break; |
99 | } | |
100 | ||
101 | case XFS_IOC_FD_TO_HANDLE: { | |
102 | struct file *file; | |
103 | ||
104 | file = fget(hreq.fd); | |
105 | if (!file) | |
106 | return -EBADF; | |
107 | ||
e678fb0d JJS |
108 | ASSERT(file->f_path.dentry); |
109 | ASSERT(file->f_path.dentry->d_inode); | |
110 | inode = igrab(file->f_path.dentry->d_inode); | |
1da177e4 LT |
111 | fput(file); |
112 | break; | |
113 | } | |
114 | ||
115 | default: | |
116 | ASSERT(0); | |
117 | return -XFS_ERROR(EINVAL); | |
118 | } | |
119 | ||
120 | if (inode->i_sb->s_magic != XFS_SB_MAGIC) { | |
121 | /* we're not in XFS anymore, Toto */ | |
122 | iput(inode); | |
123 | return -XFS_ERROR(EINVAL); | |
124 | } | |
125 | ||
0432dab2 CH |
126 | switch (inode->i_mode & S_IFMT) { |
127 | case S_IFREG: | |
128 | case S_IFDIR: | |
129 | case S_IFLNK: | |
130 | break; | |
131 | default: | |
1da177e4 LT |
132 | iput(inode); |
133 | return -XFS_ERROR(EBADF); | |
134 | } | |
135 | ||
136 | /* now we can grab the fsid */ | |
0ce4cfd4 | 137 | memcpy(&handle.ha_fsid, XFS_I(inode)->i_mount->m_fixedfsid, |
2f6f7b3d | 138 | sizeof(xfs_fsid_t)); |
1da177e4 LT |
139 | hsize = sizeof(xfs_fsid_t); |
140 | ||
141 | if (cmd != XFS_IOC_PATH_TO_FSHANDLE) { | |
6e7f75ea | 142 | xfs_inode_t *ip = XFS_I(inode); |
1da177e4 LT |
143 | int lock_mode; |
144 | ||
145 | /* need to get access to the xfs_inode to read the generation */ | |
1da177e4 LT |
146 | lock_mode = xfs_ilock_map_shared(ip); |
147 | ||
148 | /* fill in fid section of handle from inode */ | |
c6143911 CH |
149 | handle.ha_fid.fid_len = sizeof(xfs_fid_t) - |
150 | sizeof(handle.ha_fid.fid_len); | |
151 | handle.ha_fid.fid_pad = 0; | |
152 | handle.ha_fid.fid_gen = ip->i_d.di_gen; | |
153 | handle.ha_fid.fid_ino = ip->i_ino; | |
1da177e4 LT |
154 | |
155 | xfs_iunlock_map_shared(ip, lock_mode); | |
156 | ||
157 | hsize = XFS_HSIZE(handle); | |
158 | } | |
159 | ||
160 | /* now copy our handle into the user buffer & write out the size */ | |
161 | if (copy_to_user(hreq.ohandle, &handle, hsize) || | |
162 | copy_to_user(hreq.ohandlen, &hsize, sizeof(__s32))) { | |
163 | iput(inode); | |
164 | return -XFS_ERROR(EFAULT); | |
165 | } | |
166 | ||
167 | iput(inode); | |
168 | return 0; | |
169 | } | |
170 | ||
171 | ||
172 | /* | |
6e7f75ea CH |
173 | * Convert userspace handle data into inode. |
174 | * | |
175 | * We use the fact that all the fsop_handlereq ioctl calls have a data | |
176 | * structure argument whose first component is always a xfs_fsop_handlereq_t, | |
177 | * so we can pass that sub structure into this handy, shared routine. | |
1da177e4 | 178 | * |
6e7f75ea | 179 | * If no error, caller must always iput the returned inode. |
1da177e4 LT |
180 | */ |
181 | STATIC int | |
182 | xfs_vget_fsop_handlereq( | |
183 | xfs_mount_t *mp, | |
184 | struct inode *parinode, /* parent inode pointer */ | |
185 | xfs_fsop_handlereq_t *hreq, | |
1da177e4 LT |
186 | struct inode **inode) |
187 | { | |
188 | void __user *hanp; | |
189 | size_t hlen; | |
190 | xfs_fid_t *xfid; | |
191 | xfs_handle_t *handlep; | |
192 | xfs_handle_t handle; | |
193 | xfs_inode_t *ip; | |
1da177e4 LT |
194 | xfs_ino_t ino; |
195 | __u32 igen; | |
196 | int error; | |
197 | ||
198 | /* | |
199 | * Only allow handle opens under a directory. | |
200 | */ | |
201 | if (!S_ISDIR(parinode->i_mode)) | |
202 | return XFS_ERROR(ENOTDIR); | |
203 | ||
204 | hanp = hreq->ihandle; | |
205 | hlen = hreq->ihandlen; | |
206 | handlep = &handle; | |
207 | ||
208 | if (hlen < sizeof(handlep->ha_fsid) || hlen > sizeof(*handlep)) | |
209 | return XFS_ERROR(EINVAL); | |
210 | if (copy_from_user(handlep, hanp, hlen)) | |
211 | return XFS_ERROR(EFAULT); | |
212 | if (hlen < sizeof(*handlep)) | |
213 | memset(((char *)handlep) + hlen, 0, sizeof(*handlep) - hlen); | |
214 | if (hlen > sizeof(handlep->ha_fsid)) { | |
c6143911 CH |
215 | if (handlep->ha_fid.fid_len != |
216 | (hlen - sizeof(handlep->ha_fsid) - | |
217 | sizeof(handlep->ha_fid.fid_len)) || | |
218 | handlep->ha_fid.fid_pad) | |
1da177e4 LT |
219 | return XFS_ERROR(EINVAL); |
220 | } | |
221 | ||
222 | /* | |
223 | * Crack the handle, obtain the inode # & generation # | |
224 | */ | |
225 | xfid = (struct xfs_fid *)&handlep->ha_fid; | |
c6143911 CH |
226 | if (xfid->fid_len == sizeof(*xfid) - sizeof(xfid->fid_len)) { |
227 | ino = xfid->fid_ino; | |
228 | igen = xfid->fid_gen; | |
1da177e4 LT |
229 | } else { |
230 | return XFS_ERROR(EINVAL); | |
231 | } | |
232 | ||
233 | /* | |
6e7f75ea | 234 | * Get the XFS inode, building a Linux inode to go with it. |
1da177e4 LT |
235 | */ |
236 | error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, 0); | |
237 | if (error) | |
238 | return error; | |
239 | if (ip == NULL) | |
240 | return XFS_ERROR(EIO); | |
6a7f422d | 241 | if (ip->i_d.di_gen != igen) { |
1da177e4 LT |
242 | xfs_iput_new(ip, XFS_ILOCK_SHARED); |
243 | return XFS_ERROR(ENOENT); | |
244 | } | |
245 | ||
1da177e4 LT |
246 | xfs_iunlock(ip, XFS_ILOCK_SHARED); |
247 | ||
e4f75291 | 248 | *inode = VFS_I(ip); |
1da177e4 LT |
249 | return 0; |
250 | } | |
251 | ||
252 | STATIC int | |
253 | xfs_open_by_handle( | |
254 | xfs_mount_t *mp, | |
255 | void __user *arg, | |
256 | struct file *parfilp, | |
257 | struct inode *parinode) | |
258 | { | |
259 | int error; | |
260 | int new_fd; | |
261 | int permflag; | |
262 | struct file *filp; | |
263 | struct inode *inode; | |
264 | struct dentry *dentry; | |
1da177e4 LT |
265 | xfs_fsop_handlereq_t hreq; |
266 | ||
267 | if (!capable(CAP_SYS_ADMIN)) | |
268 | return -XFS_ERROR(EPERM); | |
269 | if (copy_from_user(&hreq, arg, sizeof(xfs_fsop_handlereq_t))) | |
270 | return -XFS_ERROR(EFAULT); | |
271 | ||
6e7f75ea | 272 | error = xfs_vget_fsop_handlereq(mp, parinode, &hreq, &inode); |
1da177e4 LT |
273 | if (error) |
274 | return -error; | |
275 | ||
276 | /* Restrict xfs_open_by_handle to directories & regular files. */ | |
277 | if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) { | |
278 | iput(inode); | |
279 | return -XFS_ERROR(EINVAL); | |
280 | } | |
281 | ||
282 | #if BITS_PER_LONG != 32 | |
283 | hreq.oflags |= O_LARGEFILE; | |
284 | #endif | |
285 | /* Put open permission in namei format. */ | |
286 | permflag = hreq.oflags; | |
287 | if ((permflag+1) & O_ACCMODE) | |
288 | permflag++; | |
289 | if (permflag & O_TRUNC) | |
290 | permflag |= 2; | |
291 | ||
292 | if ((!(permflag & O_APPEND) || (permflag & O_TRUNC)) && | |
293 | (permflag & FMODE_WRITE) && IS_APPEND(inode)) { | |
294 | iput(inode); | |
295 | return -XFS_ERROR(EPERM); | |
296 | } | |
297 | ||
298 | if ((permflag & FMODE_WRITE) && IS_IMMUTABLE(inode)) { | |
299 | iput(inode); | |
300 | return -XFS_ERROR(EACCES); | |
301 | } | |
302 | ||
303 | /* Can't write directories. */ | |
304 | if ( S_ISDIR(inode->i_mode) && (permflag & FMODE_WRITE)) { | |
305 | iput(inode); | |
306 | return -XFS_ERROR(EISDIR); | |
307 | } | |
308 | ||
309 | if ((new_fd = get_unused_fd()) < 0) { | |
310 | iput(inode); | |
311 | return new_fd; | |
312 | } | |
313 | ||
44003728 CH |
314 | dentry = d_obtain_alias(inode); |
315 | if (IS_ERR(dentry)) { | |
1da177e4 | 316 | put_unused_fd(new_fd); |
44003728 | 317 | return PTR_ERR(dentry); |
1da177e4 LT |
318 | } |
319 | ||
320 | /* Ensure umount returns EBUSY on umounts while this file is open. */ | |
e678fb0d | 321 | mntget(parfilp->f_path.mnt); |
1da177e4 LT |
322 | |
323 | /* Create file pointer. */ | |
e678fb0d | 324 | filp = dentry_open(dentry, parfilp->f_path.mnt, hreq.oflags); |
1da177e4 LT |
325 | if (IS_ERR(filp)) { |
326 | put_unused_fd(new_fd); | |
327 | return -XFS_ERROR(-PTR_ERR(filp)); | |
328 | } | |
2e2e7bb1 VA |
329 | if (inode->i_mode & S_IFREG) { |
330 | /* invisible operation should not change atime */ | |
331 | filp->f_flags |= O_NOATIME; | |
3562fd45 | 332 | filp->f_op = &xfs_invis_file_operations; |
2e2e7bb1 | 333 | } |
1da177e4 LT |
334 | |
335 | fd_install(new_fd, filp); | |
336 | return new_fd; | |
337 | } | |
338 | ||
804c83c3 CH |
339 | /* |
340 | * This is a copy from fs/namei.c:vfs_readlink(), except for removing it's | |
341 | * unused first argument. | |
342 | */ | |
343 | STATIC int | |
344 | do_readlink( | |
345 | char __user *buffer, | |
346 | int buflen, | |
347 | const char *link) | |
348 | { | |
349 | int len; | |
350 | ||
351 | len = PTR_ERR(link); | |
352 | if (IS_ERR(link)) | |
353 | goto out; | |
354 | ||
355 | len = strlen(link); | |
356 | if (len > (unsigned) buflen) | |
357 | len = buflen; | |
358 | if (copy_to_user(buffer, link, len)) | |
359 | len = -EFAULT; | |
360 | out: | |
361 | return len; | |
362 | } | |
363 | ||
364 | ||
1da177e4 LT |
365 | STATIC int |
366 | xfs_readlink_by_handle( | |
367 | xfs_mount_t *mp, | |
368 | void __user *arg, | |
1da177e4 LT |
369 | struct inode *parinode) |
370 | { | |
1da177e4 LT |
371 | struct inode *inode; |
372 | xfs_fsop_handlereq_t hreq; | |
1da177e4 | 373 | __u32 olen; |
804c83c3 CH |
374 | void *link; |
375 | int error; | |
1da177e4 LT |
376 | |
377 | if (!capable(CAP_SYS_ADMIN)) | |
378 | return -XFS_ERROR(EPERM); | |
379 | if (copy_from_user(&hreq, arg, sizeof(xfs_fsop_handlereq_t))) | |
380 | return -XFS_ERROR(EFAULT); | |
381 | ||
6e7f75ea | 382 | error = xfs_vget_fsop_handlereq(mp, parinode, &hreq, &inode); |
1da177e4 LT |
383 | if (error) |
384 | return -error; | |
385 | ||
386 | /* Restrict this handle operation to symlinks only. */ | |
0432dab2 | 387 | if (!S_ISLNK(inode->i_mode)) { |
804c83c3 CH |
388 | error = -XFS_ERROR(EINVAL); |
389 | goto out_iput; | |
1da177e4 LT |
390 | } |
391 | ||
392 | if (copy_from_user(&olen, hreq.ohandlen, sizeof(__u32))) { | |
804c83c3 CH |
393 | error = -XFS_ERROR(EFAULT); |
394 | goto out_iput; | |
1da177e4 | 395 | } |
1da177e4 | 396 | |
804c83c3 CH |
397 | link = kmalloc(MAXPATHLEN+1, GFP_KERNEL); |
398 | if (!link) | |
399 | goto out_iput; | |
1da177e4 | 400 | |
739bfb2a | 401 | error = -xfs_readlink(XFS_I(inode), link); |
67fcaa73 | 402 | if (error) |
804c83c3 CH |
403 | goto out_kfree; |
404 | error = do_readlink(hreq.ohandle, olen, link); | |
405 | if (error) | |
406 | goto out_kfree; | |
67fcaa73 | 407 | |
804c83c3 CH |
408 | out_kfree: |
409 | kfree(link); | |
410 | out_iput: | |
411 | iput(inode); | |
412 | return error; | |
1da177e4 LT |
413 | } |
414 | ||
415 | STATIC int | |
416 | xfs_fssetdm_by_handle( | |
417 | xfs_mount_t *mp, | |
418 | void __user *arg, | |
1da177e4 LT |
419 | struct inode *parinode) |
420 | { | |
421 | int error; | |
422 | struct fsdmidata fsd; | |
423 | xfs_fsop_setdm_handlereq_t dmhreq; | |
424 | struct inode *inode; | |
1da177e4 LT |
425 | |
426 | if (!capable(CAP_MKNOD)) | |
427 | return -XFS_ERROR(EPERM); | |
428 | if (copy_from_user(&dmhreq, arg, sizeof(xfs_fsop_setdm_handlereq_t))) | |
429 | return -XFS_ERROR(EFAULT); | |
430 | ||
6e7f75ea | 431 | error = xfs_vget_fsop_handlereq(mp, parinode, &dmhreq.hreq, &inode); |
1da177e4 LT |
432 | if (error) |
433 | return -error; | |
434 | ||
435 | if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) { | |
6e7f75ea CH |
436 | error = -XFS_ERROR(EPERM); |
437 | goto out; | |
1da177e4 LT |
438 | } |
439 | ||
440 | if (copy_from_user(&fsd, dmhreq.data, sizeof(fsd))) { | |
6e7f75ea CH |
441 | error = -XFS_ERROR(EFAULT); |
442 | goto out; | |
1da177e4 LT |
443 | } |
444 | ||
6e7f75ea CH |
445 | error = -xfs_set_dmattrs(XFS_I(inode), fsd.fsd_dmevmask, |
446 | fsd.fsd_dmstate); | |
1da177e4 | 447 | |
6e7f75ea CH |
448 | out: |
449 | iput(inode); | |
450 | return error; | |
1da177e4 LT |
451 | } |
452 | ||
453 | STATIC int | |
454 | xfs_attrlist_by_handle( | |
455 | xfs_mount_t *mp, | |
456 | void __user *arg, | |
1da177e4 LT |
457 | struct inode *parinode) |
458 | { | |
459 | int error; | |
460 | attrlist_cursor_kern_t *cursor; | |
461 | xfs_fsop_attrlist_handlereq_t al_hreq; | |
462 | struct inode *inode; | |
1da177e4 LT |
463 | char *kbuf; |
464 | ||
465 | if (!capable(CAP_SYS_ADMIN)) | |
466 | return -XFS_ERROR(EPERM); | |
467 | if (copy_from_user(&al_hreq, arg, sizeof(xfs_fsop_attrlist_handlereq_t))) | |
468 | return -XFS_ERROR(EFAULT); | |
469 | if (al_hreq.buflen > XATTR_LIST_MAX) | |
470 | return -XFS_ERROR(EINVAL); | |
471 | ||
90ad58a8 CH |
472 | /* |
473 | * Reject flags, only allow namespaces. | |
474 | */ | |
475 | if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE)) | |
476 | return -XFS_ERROR(EINVAL); | |
477 | ||
6e7f75ea | 478 | error = xfs_vget_fsop_handlereq(mp, parinode, &al_hreq.hreq, &inode); |
1da177e4 LT |
479 | if (error) |
480 | goto out; | |
481 | ||
482 | kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL); | |
483 | if (!kbuf) | |
484 | goto out_vn_rele; | |
485 | ||
486 | cursor = (attrlist_cursor_kern_t *)&al_hreq.pos; | |
739bfb2a CH |
487 | error = xfs_attr_list(XFS_I(inode), kbuf, al_hreq.buflen, |
488 | al_hreq.flags, cursor); | |
1da177e4 LT |
489 | if (error) |
490 | goto out_kfree; | |
491 | ||
492 | if (copy_to_user(al_hreq.buffer, kbuf, al_hreq.buflen)) | |
493 | error = -EFAULT; | |
494 | ||
495 | out_kfree: | |
496 | kfree(kbuf); | |
497 | out_vn_rele: | |
6e7f75ea | 498 | iput(inode); |
1da177e4 LT |
499 | out: |
500 | return -error; | |
501 | } | |
502 | ||
503 | STATIC int | |
504 | xfs_attrmulti_attr_get( | |
739bfb2a | 505 | struct inode *inode, |
1da177e4 LT |
506 | char *name, |
507 | char __user *ubuf, | |
508 | __uint32_t *len, | |
509 | __uint32_t flags) | |
510 | { | |
511 | char *kbuf; | |
512 | int error = EFAULT; | |
e8b0ebaa | 513 | |
1da177e4 LT |
514 | if (*len > XATTR_SIZE_MAX) |
515 | return EINVAL; | |
516 | kbuf = kmalloc(*len, GFP_KERNEL); | |
517 | if (!kbuf) | |
518 | return ENOMEM; | |
519 | ||
e8b0ebaa | 520 | error = xfs_attr_get(XFS_I(inode), name, kbuf, (int *)len, flags); |
1da177e4 LT |
521 | if (error) |
522 | goto out_kfree; | |
523 | ||
524 | if (copy_to_user(ubuf, kbuf, *len)) | |
525 | error = EFAULT; | |
526 | ||
527 | out_kfree: | |
528 | kfree(kbuf); | |
529 | return error; | |
530 | } | |
531 | ||
532 | STATIC int | |
533 | xfs_attrmulti_attr_set( | |
739bfb2a | 534 | struct inode *inode, |
1da177e4 LT |
535 | char *name, |
536 | const char __user *ubuf, | |
537 | __uint32_t len, | |
538 | __uint32_t flags) | |
539 | { | |
540 | char *kbuf; | |
541 | int error = EFAULT; | |
542 | ||
739bfb2a | 543 | if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) |
1da177e4 LT |
544 | return EPERM; |
545 | if (len > XATTR_SIZE_MAX) | |
546 | return EINVAL; | |
547 | ||
548 | kbuf = kmalloc(len, GFP_KERNEL); | |
549 | if (!kbuf) | |
550 | return ENOMEM; | |
551 | ||
552 | if (copy_from_user(kbuf, ubuf, len)) | |
553 | goto out_kfree; | |
e8b0ebaa | 554 | |
739bfb2a | 555 | error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags); |
1da177e4 LT |
556 | |
557 | out_kfree: | |
558 | kfree(kbuf); | |
559 | return error; | |
560 | } | |
561 | ||
562 | STATIC int | |
563 | xfs_attrmulti_attr_remove( | |
739bfb2a | 564 | struct inode *inode, |
1da177e4 LT |
565 | char *name, |
566 | __uint32_t flags) | |
567 | { | |
739bfb2a | 568 | if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) |
1da177e4 | 569 | return EPERM; |
739bfb2a | 570 | return xfs_attr_remove(XFS_I(inode), name, flags); |
1da177e4 LT |
571 | } |
572 | ||
573 | STATIC int | |
574 | xfs_attrmulti_by_handle( | |
575 | xfs_mount_t *mp, | |
576 | void __user *arg, | |
42a74f20 | 577 | struct file *parfilp, |
1da177e4 LT |
578 | struct inode *parinode) |
579 | { | |
580 | int error; | |
581 | xfs_attr_multiop_t *ops; | |
582 | xfs_fsop_attrmulti_handlereq_t am_hreq; | |
583 | struct inode *inode; | |
1da177e4 LT |
584 | unsigned int i, size; |
585 | char *attr_name; | |
586 | ||
587 | if (!capable(CAP_SYS_ADMIN)) | |
588 | return -XFS_ERROR(EPERM); | |
589 | if (copy_from_user(&am_hreq, arg, sizeof(xfs_fsop_attrmulti_handlereq_t))) | |
590 | return -XFS_ERROR(EFAULT); | |
591 | ||
6e7f75ea | 592 | error = xfs_vget_fsop_handlereq(mp, parinode, &am_hreq.hreq, &inode); |
1da177e4 LT |
593 | if (error) |
594 | goto out; | |
595 | ||
596 | error = E2BIG; | |
e182f57a | 597 | size = am_hreq.opcount * sizeof(xfs_attr_multiop_t); |
1da177e4 LT |
598 | if (!size || size > 16 * PAGE_SIZE) |
599 | goto out_vn_rele; | |
600 | ||
601 | error = ENOMEM; | |
602 | ops = kmalloc(size, GFP_KERNEL); | |
603 | if (!ops) | |
604 | goto out_vn_rele; | |
605 | ||
606 | error = EFAULT; | |
607 | if (copy_from_user(ops, am_hreq.ops, size)) | |
608 | goto out_kfree_ops; | |
609 | ||
610 | attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL); | |
611 | if (!attr_name) | |
612 | goto out_kfree_ops; | |
613 | ||
614 | ||
615 | error = 0; | |
616 | for (i = 0; i < am_hreq.opcount; i++) { | |
617 | ops[i].am_error = strncpy_from_user(attr_name, | |
618 | ops[i].am_attrname, MAXNAMELEN); | |
619 | if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN) | |
620 | error = -ERANGE; | |
621 | if (ops[i].am_error < 0) | |
622 | break; | |
623 | ||
624 | switch (ops[i].am_opcode) { | |
625 | case ATTR_OP_GET: | |
739bfb2a | 626 | ops[i].am_error = xfs_attrmulti_attr_get(inode, |
1da177e4 LT |
627 | attr_name, ops[i].am_attrvalue, |
628 | &ops[i].am_length, ops[i].am_flags); | |
629 | break; | |
630 | case ATTR_OP_SET: | |
42a74f20 DH |
631 | ops[i].am_error = mnt_want_write(parfilp->f_path.mnt); |
632 | if (ops[i].am_error) | |
633 | break; | |
739bfb2a | 634 | ops[i].am_error = xfs_attrmulti_attr_set(inode, |
1da177e4 LT |
635 | attr_name, ops[i].am_attrvalue, |
636 | ops[i].am_length, ops[i].am_flags); | |
42a74f20 | 637 | mnt_drop_write(parfilp->f_path.mnt); |
1da177e4 LT |
638 | break; |
639 | case ATTR_OP_REMOVE: | |
42a74f20 DH |
640 | ops[i].am_error = mnt_want_write(parfilp->f_path.mnt); |
641 | if (ops[i].am_error) | |
642 | break; | |
739bfb2a | 643 | ops[i].am_error = xfs_attrmulti_attr_remove(inode, |
1da177e4 | 644 | attr_name, ops[i].am_flags); |
42a74f20 | 645 | mnt_drop_write(parfilp->f_path.mnt); |
1da177e4 LT |
646 | break; |
647 | default: | |
648 | ops[i].am_error = EINVAL; | |
649 | } | |
650 | } | |
651 | ||
652 | if (copy_to_user(am_hreq.ops, ops, size)) | |
653 | error = XFS_ERROR(EFAULT); | |
654 | ||
655 | kfree(attr_name); | |
656 | out_kfree_ops: | |
657 | kfree(ops); | |
658 | out_vn_rele: | |
6e7f75ea | 659 | iput(inode); |
1da177e4 LT |
660 | out: |
661 | return -error; | |
662 | } | |
663 | ||
1da177e4 LT |
664 | STATIC int |
665 | xfs_ioc_space( | |
993386c1 | 666 | struct xfs_inode *ip, |
f37ea149 | 667 | struct inode *inode, |
1da177e4 LT |
668 | struct file *filp, |
669 | int ioflags, | |
670 | unsigned int cmd, | |
671 | void __user *arg) | |
672 | { | |
673 | xfs_flock64_t bf; | |
674 | int attr_flags = 0; | |
675 | int error; | |
676 | ||
f37ea149 | 677 | if (inode->i_flags & (S_IMMUTABLE|S_APPEND)) |
1da177e4 LT |
678 | return -XFS_ERROR(EPERM); |
679 | ||
ad4a8ac4 | 680 | if (!(filp->f_mode & FMODE_WRITE)) |
1da177e4 LT |
681 | return -XFS_ERROR(EBADF); |
682 | ||
f37ea149 | 683 | if (!S_ISREG(inode->i_mode)) |
1da177e4 LT |
684 | return -XFS_ERROR(EINVAL); |
685 | ||
686 | if (copy_from_user(&bf, arg, sizeof(bf))) | |
687 | return -XFS_ERROR(EFAULT); | |
688 | ||
689 | if (filp->f_flags & (O_NDELAY|O_NONBLOCK)) | |
0f285c8a | 690 | attr_flags |= XFS_ATTR_NONBLOCK; |
1da177e4 | 691 | if (ioflags & IO_INVIS) |
0f285c8a | 692 | attr_flags |= XFS_ATTR_DMI; |
1da177e4 | 693 | |
ea5a3dc8 | 694 | error = xfs_change_file_space(ip, cmd, &bf, filp->f_pos, attr_flags); |
1da177e4 LT |
695 | return -error; |
696 | } | |
697 | ||
698 | STATIC int | |
699 | xfs_ioc_bulkstat( | |
700 | xfs_mount_t *mp, | |
701 | unsigned int cmd, | |
702 | void __user *arg) | |
703 | { | |
704 | xfs_fsop_bulkreq_t bulkreq; | |
705 | int count; /* # of records returned */ | |
706 | xfs_ino_t inlast; /* last inode number */ | |
707 | int done; | |
708 | int error; | |
709 | ||
710 | /* done = 1 if there are more stats to get and if bulkstat */ | |
711 | /* should be called again (unused here, but used in dmapi) */ | |
712 | ||
713 | if (!capable(CAP_SYS_ADMIN)) | |
714 | return -EPERM; | |
715 | ||
716 | if (XFS_FORCED_SHUTDOWN(mp)) | |
717 | return -XFS_ERROR(EIO); | |
718 | ||
719 | if (copy_from_user(&bulkreq, arg, sizeof(xfs_fsop_bulkreq_t))) | |
720 | return -XFS_ERROR(EFAULT); | |
721 | ||
722 | if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64))) | |
723 | return -XFS_ERROR(EFAULT); | |
724 | ||
725 | if ((count = bulkreq.icount) <= 0) | |
726 | return -XFS_ERROR(EINVAL); | |
727 | ||
cd57e594 LM |
728 | if (bulkreq.ubuffer == NULL) |
729 | return -XFS_ERROR(EINVAL); | |
730 | ||
1da177e4 LT |
731 | if (cmd == XFS_IOC_FSINUMBERS) |
732 | error = xfs_inumbers(mp, &inlast, &count, | |
faa63e95 | 733 | bulkreq.ubuffer, xfs_inumbers_fmt); |
1da177e4 LT |
734 | else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE) |
735 | error = xfs_bulkstat_single(mp, &inlast, | |
736 | bulkreq.ubuffer, &done); | |
cd57e594 LM |
737 | else /* XFS_IOC_FSBULKSTAT */ |
738 | error = xfs_bulkstat(mp, &inlast, &count, | |
739 | (bulkstat_one_pf)xfs_bulkstat_one, NULL, | |
740 | sizeof(xfs_bstat_t), bulkreq.ubuffer, | |
741 | BULKSTAT_FG_QUICK, &done); | |
1da177e4 LT |
742 | |
743 | if (error) | |
744 | return -error; | |
745 | ||
746 | if (bulkreq.ocount != NULL) { | |
747 | if (copy_to_user(bulkreq.lastip, &inlast, | |
748 | sizeof(xfs_ino_t))) | |
749 | return -XFS_ERROR(EFAULT); | |
750 | ||
751 | if (copy_to_user(bulkreq.ocount, &count, sizeof(count))) | |
752 | return -XFS_ERROR(EFAULT); | |
753 | } | |
754 | ||
755 | return 0; | |
756 | } | |
757 | ||
758 | STATIC int | |
759 | xfs_ioc_fsgeometry_v1( | |
760 | xfs_mount_t *mp, | |
761 | void __user *arg) | |
762 | { | |
763 | xfs_fsop_geom_v1_t fsgeo; | |
764 | int error; | |
765 | ||
766 | error = xfs_fs_geometry(mp, (xfs_fsop_geom_t *)&fsgeo, 3); | |
767 | if (error) | |
768 | return -error; | |
769 | ||
770 | if (copy_to_user(arg, &fsgeo, sizeof(fsgeo))) | |
771 | return -XFS_ERROR(EFAULT); | |
772 | return 0; | |
773 | } | |
774 | ||
775 | STATIC int | |
776 | xfs_ioc_fsgeometry( | |
777 | xfs_mount_t *mp, | |
778 | void __user *arg) | |
779 | { | |
780 | xfs_fsop_geom_t fsgeo; | |
781 | int error; | |
782 | ||
783 | error = xfs_fs_geometry(mp, &fsgeo, 4); | |
784 | if (error) | |
785 | return -error; | |
786 | ||
787 | if (copy_to_user(arg, &fsgeo, sizeof(fsgeo))) | |
788 | return -XFS_ERROR(EFAULT); | |
789 | return 0; | |
790 | } | |
791 | ||
792 | /* | |
793 | * Linux extended inode flags interface. | |
794 | */ | |
1da177e4 LT |
795 | |
796 | STATIC unsigned int | |
797 | xfs_merge_ioc_xflags( | |
798 | unsigned int flags, | |
799 | unsigned int start) | |
800 | { | |
801 | unsigned int xflags = start; | |
802 | ||
39058a0e | 803 | if (flags & FS_IMMUTABLE_FL) |
1da177e4 LT |
804 | xflags |= XFS_XFLAG_IMMUTABLE; |
805 | else | |
806 | xflags &= ~XFS_XFLAG_IMMUTABLE; | |
39058a0e | 807 | if (flags & FS_APPEND_FL) |
1da177e4 LT |
808 | xflags |= XFS_XFLAG_APPEND; |
809 | else | |
810 | xflags &= ~XFS_XFLAG_APPEND; | |
39058a0e | 811 | if (flags & FS_SYNC_FL) |
1da177e4 LT |
812 | xflags |= XFS_XFLAG_SYNC; |
813 | else | |
814 | xflags &= ~XFS_XFLAG_SYNC; | |
39058a0e | 815 | if (flags & FS_NOATIME_FL) |
1da177e4 LT |
816 | xflags |= XFS_XFLAG_NOATIME; |
817 | else | |
818 | xflags &= ~XFS_XFLAG_NOATIME; | |
39058a0e | 819 | if (flags & FS_NODUMP_FL) |
1da177e4 LT |
820 | xflags |= XFS_XFLAG_NODUMP; |
821 | else | |
822 | xflags &= ~XFS_XFLAG_NODUMP; | |
823 | ||
824 | return xflags; | |
825 | } | |
826 | ||
827 | STATIC unsigned int | |
828 | xfs_di2lxflags( | |
829 | __uint16_t di_flags) | |
830 | { | |
831 | unsigned int flags = 0; | |
832 | ||
833 | if (di_flags & XFS_DIFLAG_IMMUTABLE) | |
39058a0e | 834 | flags |= FS_IMMUTABLE_FL; |
1da177e4 | 835 | if (di_flags & XFS_DIFLAG_APPEND) |
39058a0e | 836 | flags |= FS_APPEND_FL; |
1da177e4 | 837 | if (di_flags & XFS_DIFLAG_SYNC) |
39058a0e | 838 | flags |= FS_SYNC_FL; |
1da177e4 | 839 | if (di_flags & XFS_DIFLAG_NOATIME) |
39058a0e | 840 | flags |= FS_NOATIME_FL; |
1da177e4 | 841 | if (di_flags & XFS_DIFLAG_NODUMP) |
39058a0e | 842 | flags |= FS_NODUMP_FL; |
1da177e4 LT |
843 | return flags; |
844 | } | |
845 | ||
c83bfab1 CH |
846 | STATIC int |
847 | xfs_ioc_fsgetxattr( | |
848 | xfs_inode_t *ip, | |
849 | int attr, | |
850 | void __user *arg) | |
851 | { | |
852 | struct fsxattr fa; | |
853 | ||
854 | xfs_ilock(ip, XFS_ILOCK_SHARED); | |
855 | fa.fsx_xflags = xfs_ip2xflags(ip); | |
856 | fa.fsx_extsize = ip->i_d.di_extsize << ip->i_mount->m_sb.sb_blocklog; | |
857 | fa.fsx_projid = ip->i_d.di_projid; | |
858 | ||
859 | if (attr) { | |
860 | if (ip->i_afp) { | |
861 | if (ip->i_afp->if_flags & XFS_IFEXTENTS) | |
862 | fa.fsx_nextents = ip->i_afp->if_bytes / | |
863 | sizeof(xfs_bmbt_rec_t); | |
864 | else | |
865 | fa.fsx_nextents = ip->i_d.di_anextents; | |
866 | } else | |
867 | fa.fsx_nextents = 0; | |
868 | } else { | |
869 | if (ip->i_df.if_flags & XFS_IFEXTENTS) | |
870 | fa.fsx_nextents = ip->i_df.if_bytes / | |
871 | sizeof(xfs_bmbt_rec_t); | |
872 | else | |
873 | fa.fsx_nextents = ip->i_d.di_nextents; | |
874 | } | |
875 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
876 | ||
877 | if (copy_to_user(arg, &fa, sizeof(fa))) | |
878 | return -EFAULT; | |
879 | return 0; | |
880 | } | |
881 | ||
25fe55e8 CH |
882 | STATIC void |
883 | xfs_set_diflags( | |
884 | struct xfs_inode *ip, | |
885 | unsigned int xflags) | |
886 | { | |
887 | unsigned int di_flags; | |
888 | ||
889 | /* can't set PREALLOC this way, just preserve it */ | |
890 | di_flags = (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC); | |
891 | if (xflags & XFS_XFLAG_IMMUTABLE) | |
892 | di_flags |= XFS_DIFLAG_IMMUTABLE; | |
893 | if (xflags & XFS_XFLAG_APPEND) | |
894 | di_flags |= XFS_DIFLAG_APPEND; | |
895 | if (xflags & XFS_XFLAG_SYNC) | |
896 | di_flags |= XFS_DIFLAG_SYNC; | |
897 | if (xflags & XFS_XFLAG_NOATIME) | |
898 | di_flags |= XFS_DIFLAG_NOATIME; | |
899 | if (xflags & XFS_XFLAG_NODUMP) | |
900 | di_flags |= XFS_DIFLAG_NODUMP; | |
901 | if (xflags & XFS_XFLAG_PROJINHERIT) | |
902 | di_flags |= XFS_DIFLAG_PROJINHERIT; | |
903 | if (xflags & XFS_XFLAG_NODEFRAG) | |
904 | di_flags |= XFS_DIFLAG_NODEFRAG; | |
905 | if (xflags & XFS_XFLAG_FILESTREAM) | |
906 | di_flags |= XFS_DIFLAG_FILESTREAM; | |
907 | if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) { | |
908 | if (xflags & XFS_XFLAG_RTINHERIT) | |
909 | di_flags |= XFS_DIFLAG_RTINHERIT; | |
910 | if (xflags & XFS_XFLAG_NOSYMLINKS) | |
911 | di_flags |= XFS_DIFLAG_NOSYMLINKS; | |
912 | if (xflags & XFS_XFLAG_EXTSZINHERIT) | |
913 | di_flags |= XFS_DIFLAG_EXTSZINHERIT; | |
914 | } else if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) { | |
915 | if (xflags & XFS_XFLAG_REALTIME) | |
916 | di_flags |= XFS_DIFLAG_REALTIME; | |
917 | if (xflags & XFS_XFLAG_EXTSIZE) | |
918 | di_flags |= XFS_DIFLAG_EXTSIZE; | |
919 | } | |
920 | ||
921 | ip->i_d.di_flags = di_flags; | |
922 | } | |
923 | ||
f13fae2d CH |
924 | STATIC void |
925 | xfs_diflags_to_linux( | |
926 | struct xfs_inode *ip) | |
927 | { | |
e4f75291 | 928 | struct inode *inode = VFS_I(ip); |
f13fae2d CH |
929 | unsigned int xflags = xfs_ip2xflags(ip); |
930 | ||
931 | if (xflags & XFS_XFLAG_IMMUTABLE) | |
932 | inode->i_flags |= S_IMMUTABLE; | |
933 | else | |
934 | inode->i_flags &= ~S_IMMUTABLE; | |
935 | if (xflags & XFS_XFLAG_APPEND) | |
936 | inode->i_flags |= S_APPEND; | |
937 | else | |
938 | inode->i_flags &= ~S_APPEND; | |
939 | if (xflags & XFS_XFLAG_SYNC) | |
940 | inode->i_flags |= S_SYNC; | |
941 | else | |
942 | inode->i_flags &= ~S_SYNC; | |
943 | if (xflags & XFS_XFLAG_NOATIME) | |
944 | inode->i_flags |= S_NOATIME; | |
945 | else | |
946 | inode->i_flags &= ~S_NOATIME; | |
947 | } | |
25fe55e8 CH |
948 | |
949 | #define FSX_PROJID 1 | |
950 | #define FSX_EXTSIZE 2 | |
951 | #define FSX_XFLAGS 4 | |
952 | #define FSX_NONBLOCK 8 | |
953 | ||
954 | STATIC int | |
955 | xfs_ioctl_setattr( | |
956 | xfs_inode_t *ip, | |
957 | struct fsxattr *fa, | |
958 | int mask) | |
959 | { | |
960 | struct xfs_mount *mp = ip->i_mount; | |
961 | struct xfs_trans *tp; | |
962 | unsigned int lock_flags = 0; | |
963 | struct xfs_dquot *udqp = NULL, *gdqp = NULL; | |
964 | struct xfs_dquot *olddquot = NULL; | |
965 | int code; | |
966 | ||
967 | xfs_itrace_entry(ip); | |
968 | ||
969 | if (mp->m_flags & XFS_MOUNT_RDONLY) | |
970 | return XFS_ERROR(EROFS); | |
971 | if (XFS_FORCED_SHUTDOWN(mp)) | |
972 | return XFS_ERROR(EIO); | |
973 | ||
974 | /* | |
975 | * If disk quotas is on, we make sure that the dquots do exist on disk, | |
976 | * before we start any other transactions. Trying to do this later | |
977 | * is messy. We don't care to take a readlock to look at the ids | |
978 | * in inode here, because we can't hold it across the trans_reserve. | |
979 | * If the IDs do change before we take the ilock, we're covered | |
980 | * because the i_*dquot fields will get updated anyway. | |
981 | */ | |
982 | if (XFS_IS_QUOTA_ON(mp) && (mask & FSX_PROJID)) { | |
983 | code = XFS_QM_DQVOPALLOC(mp, ip, ip->i_d.di_uid, | |
984 | ip->i_d.di_gid, fa->fsx_projid, | |
985 | XFS_QMOPT_PQUOTA, &udqp, &gdqp); | |
986 | if (code) | |
987 | return code; | |
988 | } | |
989 | ||
990 | /* | |
991 | * For the other attributes, we acquire the inode lock and | |
992 | * first do an error checking pass. | |
993 | */ | |
994 | tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE); | |
995 | code = xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0); | |
996 | if (code) | |
997 | goto error_return; | |
998 | ||
999 | lock_flags = XFS_ILOCK_EXCL; | |
1000 | xfs_ilock(ip, lock_flags); | |
1001 | ||
1002 | /* | |
1003 | * CAP_FOWNER overrides the following restrictions: | |
1004 | * | |
1005 | * The user ID of the calling process must be equal | |
1006 | * to the file owner ID, except in cases where the | |
1007 | * CAP_FSETID capability is applicable. | |
1008 | */ | |
1009 | if (current->fsuid != ip->i_d.di_uid && !capable(CAP_FOWNER)) { | |
1010 | code = XFS_ERROR(EPERM); | |
1011 | goto error_return; | |
1012 | } | |
1013 | ||
1014 | /* | |
1015 | * Do a quota reservation only if projid is actually going to change. | |
1016 | */ | |
1017 | if (mask & FSX_PROJID) { | |
1018 | if (XFS_IS_PQUOTA_ON(mp) && | |
1019 | ip->i_d.di_projid != fa->fsx_projid) { | |
1020 | ASSERT(tp); | |
1021 | code = XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, udqp, gdqp, | |
1022 | capable(CAP_FOWNER) ? | |
1023 | XFS_QMOPT_FORCE_RES : 0); | |
1024 | if (code) /* out of quota */ | |
1025 | goto error_return; | |
1026 | } | |
1027 | } | |
1028 | ||
1029 | if (mask & FSX_EXTSIZE) { | |
1030 | /* | |
1031 | * Can't change extent size if any extents are allocated. | |
1032 | */ | |
1033 | if (ip->i_d.di_nextents && | |
1034 | ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != | |
1035 | fa->fsx_extsize)) { | |
1036 | code = XFS_ERROR(EINVAL); /* EFBIG? */ | |
1037 | goto error_return; | |
1038 | } | |
1039 | ||
1040 | /* | |
1041 | * Extent size must be a multiple of the appropriate block | |
1042 | * size, if set at all. | |
1043 | */ | |
1044 | if (fa->fsx_extsize != 0) { | |
1045 | xfs_extlen_t size; | |
1046 | ||
1047 | if (XFS_IS_REALTIME_INODE(ip) || | |
1048 | ((mask & FSX_XFLAGS) && | |
1049 | (fa->fsx_xflags & XFS_XFLAG_REALTIME))) { | |
1050 | size = mp->m_sb.sb_rextsize << | |
1051 | mp->m_sb.sb_blocklog; | |
1052 | } else { | |
1053 | size = mp->m_sb.sb_blocksize; | |
1054 | } | |
1055 | ||
1056 | if (fa->fsx_extsize % size) { | |
1057 | code = XFS_ERROR(EINVAL); | |
1058 | goto error_return; | |
1059 | } | |
1060 | } | |
1061 | } | |
1062 | ||
1063 | ||
1064 | if (mask & FSX_XFLAGS) { | |
1065 | /* | |
1066 | * Can't change realtime flag if any extents are allocated. | |
1067 | */ | |
1068 | if ((ip->i_d.di_nextents || ip->i_delayed_blks) && | |
1069 | (XFS_IS_REALTIME_INODE(ip)) != | |
1070 | (fa->fsx_xflags & XFS_XFLAG_REALTIME)) { | |
1071 | code = XFS_ERROR(EINVAL); /* EFBIG? */ | |
1072 | goto error_return; | |
1073 | } | |
1074 | ||
1075 | /* | |
1076 | * If realtime flag is set then must have realtime data. | |
1077 | */ | |
1078 | if ((fa->fsx_xflags & XFS_XFLAG_REALTIME)) { | |
1079 | if ((mp->m_sb.sb_rblocks == 0) || | |
1080 | (mp->m_sb.sb_rextsize == 0) || | |
1081 | (ip->i_d.di_extsize % mp->m_sb.sb_rextsize)) { | |
1082 | code = XFS_ERROR(EINVAL); | |
1083 | goto error_return; | |
1084 | } | |
1085 | } | |
1086 | ||
1087 | /* | |
1088 | * Can't modify an immutable/append-only file unless | |
1089 | * we have appropriate permission. | |
1090 | */ | |
1091 | if ((ip->i_d.di_flags & | |
1092 | (XFS_DIFLAG_IMMUTABLE|XFS_DIFLAG_APPEND) || | |
1093 | (fa->fsx_xflags & | |
1094 | (XFS_XFLAG_IMMUTABLE | XFS_XFLAG_APPEND))) && | |
1095 | !capable(CAP_LINUX_IMMUTABLE)) { | |
1096 | code = XFS_ERROR(EPERM); | |
1097 | goto error_return; | |
1098 | } | |
1099 | } | |
1100 | ||
1101 | xfs_trans_ijoin(tp, ip, lock_flags); | |
1102 | xfs_trans_ihold(tp, ip); | |
1103 | ||
1104 | /* | |
1105 | * Change file ownership. Must be the owner or privileged. | |
1106 | * If the system was configured with the "restricted_chown" | |
1107 | * option, the owner is not permitted to give away the file, | |
1108 | * and can change the group id only to a group of which he | |
1109 | * or she is a member. | |
1110 | */ | |
1111 | if (mask & FSX_PROJID) { | |
1112 | /* | |
1113 | * CAP_FSETID overrides the following restrictions: | |
1114 | * | |
1115 | * The set-user-ID and set-group-ID bits of a file will be | |
1116 | * cleared upon successful return from chown() | |
1117 | */ | |
1118 | if ((ip->i_d.di_mode & (S_ISUID|S_ISGID)) && | |
1119 | !capable(CAP_FSETID)) | |
1120 | ip->i_d.di_mode &= ~(S_ISUID|S_ISGID); | |
1121 | ||
1122 | /* | |
1123 | * Change the ownerships and register quota modifications | |
1124 | * in the transaction. | |
1125 | */ | |
1126 | if (ip->i_d.di_projid != fa->fsx_projid) { | |
1127 | if (XFS_IS_PQUOTA_ON(mp)) { | |
1128 | olddquot = XFS_QM_DQVOPCHOWN(mp, tp, ip, | |
1129 | &ip->i_gdquot, gdqp); | |
1130 | } | |
1131 | ip->i_d.di_projid = fa->fsx_projid; | |
1132 | ||
1133 | /* | |
1134 | * We may have to rev the inode as well as | |
1135 | * the superblock version number since projids didn't | |
1136 | * exist before DINODE_VERSION_2 and SB_VERSION_NLINK. | |
1137 | */ | |
1138 | if (ip->i_d.di_version == XFS_DINODE_VERSION_1) | |
1139 | xfs_bump_ino_vers2(tp, ip); | |
1140 | } | |
1141 | ||
1142 | } | |
1143 | ||
1144 | if (mask & FSX_EXTSIZE) | |
1145 | ip->i_d.di_extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog; | |
f13fae2d | 1146 | if (mask & FSX_XFLAGS) { |
25fe55e8 | 1147 | xfs_set_diflags(ip, fa->fsx_xflags); |
f13fae2d CH |
1148 | xfs_diflags_to_linux(ip); |
1149 | } | |
25fe55e8 CH |
1150 | |
1151 | xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); | |
1152 | xfs_ichgtime(ip, XFS_ICHGTIME_CHG); | |
1153 | ||
1154 | XFS_STATS_INC(xs_ig_attrchg); | |
1155 | ||
1156 | /* | |
1157 | * If this is a synchronous mount, make sure that the | |
1158 | * transaction goes to disk before returning to the user. | |
1159 | * This is slightly sub-optimal in that truncates require | |
1160 | * two sync transactions instead of one for wsync filesystems. | |
1161 | * One for the truncate and one for the timestamps since we | |
1162 | * don't want to change the timestamps unless we're sure the | |
1163 | * truncate worked. Truncates are less than 1% of the laddis | |
1164 | * mix so this probably isn't worth the trouble to optimize. | |
1165 | */ | |
1166 | if (mp->m_flags & XFS_MOUNT_WSYNC) | |
1167 | xfs_trans_set_sync(tp); | |
1168 | code = xfs_trans_commit(tp, 0); | |
1169 | xfs_iunlock(ip, lock_flags); | |
1170 | ||
1171 | /* | |
1172 | * Release any dquot(s) the inode had kept before chown. | |
1173 | */ | |
1174 | XFS_QM_DQRELE(mp, olddquot); | |
1175 | XFS_QM_DQRELE(mp, udqp); | |
1176 | XFS_QM_DQRELE(mp, gdqp); | |
1177 | ||
1178 | if (code) | |
1179 | return code; | |
1180 | ||
1181 | if (DM_EVENT_ENABLED(ip, DM_EVENT_ATTRIBUTE)) { | |
1182 | XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, ip, DM_RIGHT_NULL, | |
1183 | NULL, DM_RIGHT_NULL, NULL, NULL, 0, 0, | |
1184 | (mask & FSX_NONBLOCK) ? DM_FLAGS_NDELAY : 0); | |
1185 | } | |
1186 | ||
25fe55e8 CH |
1187 | return 0; |
1188 | ||
1189 | error_return: | |
1190 | XFS_QM_DQRELE(mp, udqp); | |
1191 | XFS_QM_DQRELE(mp, gdqp); | |
1192 | xfs_trans_cancel(tp, 0); | |
1193 | if (lock_flags) | |
1194 | xfs_iunlock(ip, lock_flags); | |
1195 | return code; | |
1196 | } | |
1197 | ||
1da177e4 | 1198 | STATIC int |
df26cfe8 | 1199 | xfs_ioc_fssetxattr( |
1da177e4 LT |
1200 | xfs_inode_t *ip, |
1201 | struct file *filp, | |
1da177e4 LT |
1202 | void __user *arg) |
1203 | { | |
1204 | struct fsxattr fa; | |
25fe55e8 | 1205 | unsigned int mask; |
df26cfe8 LM |
1206 | |
1207 | if (copy_from_user(&fa, arg, sizeof(fa))) | |
1208 | return -EFAULT; | |
1da177e4 | 1209 | |
25fe55e8 | 1210 | mask = FSX_XFLAGS | FSX_EXTSIZE | FSX_PROJID; |
df26cfe8 | 1211 | if (filp->f_flags & (O_NDELAY|O_NONBLOCK)) |
25fe55e8 | 1212 | mask |= FSX_NONBLOCK; |
1da177e4 | 1213 | |
25fe55e8 | 1214 | return -xfs_ioctl_setattr(ip, &fa, mask); |
df26cfe8 | 1215 | } |
1da177e4 | 1216 | |
df26cfe8 LM |
1217 | STATIC int |
1218 | xfs_ioc_getxflags( | |
1219 | xfs_inode_t *ip, | |
1220 | void __user *arg) | |
1221 | { | |
1222 | unsigned int flags; | |
1da177e4 | 1223 | |
df26cfe8 LM |
1224 | flags = xfs_di2lxflags(ip->i_d.di_flags); |
1225 | if (copy_to_user(arg, &flags, sizeof(flags))) | |
1226 | return -EFAULT; | |
1227 | return 0; | |
1228 | } | |
1da177e4 | 1229 | |
df26cfe8 LM |
1230 | STATIC int |
1231 | xfs_ioc_setxflags( | |
1232 | xfs_inode_t *ip, | |
1233 | struct file *filp, | |
1234 | void __user *arg) | |
1235 | { | |
25fe55e8 | 1236 | struct fsxattr fa; |
df26cfe8 | 1237 | unsigned int flags; |
25fe55e8 | 1238 | unsigned int mask; |
1da177e4 | 1239 | |
df26cfe8 LM |
1240 | if (copy_from_user(&flags, arg, sizeof(flags))) |
1241 | return -EFAULT; | |
1da177e4 | 1242 | |
df26cfe8 LM |
1243 | if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | \ |
1244 | FS_NOATIME_FL | FS_NODUMP_FL | \ | |
1245 | FS_SYNC_FL)) | |
1246 | return -EOPNOTSUPP; | |
1da177e4 | 1247 | |
25fe55e8 | 1248 | mask = FSX_XFLAGS; |
df26cfe8 | 1249 | if (filp->f_flags & (O_NDELAY|O_NONBLOCK)) |
25fe55e8 CH |
1250 | mask |= FSX_NONBLOCK; |
1251 | fa.fsx_xflags = xfs_merge_ioc_xflags(flags, xfs_ip2xflags(ip)); | |
1da177e4 | 1252 | |
25fe55e8 | 1253 | return -xfs_ioctl_setattr(ip, &fa, mask); |
1da177e4 LT |
1254 | } |
1255 | ||
1256 | STATIC int | |
1257 | xfs_ioc_getbmap( | |
993386c1 | 1258 | struct xfs_inode *ip, |
1da177e4 LT |
1259 | int ioflags, |
1260 | unsigned int cmd, | |
1261 | void __user *arg) | |
1262 | { | |
1263 | struct getbmap bm; | |
1264 | int iflags; | |
1265 | int error; | |
1266 | ||
1267 | if (copy_from_user(&bm, arg, sizeof(bm))) | |
1268 | return -XFS_ERROR(EFAULT); | |
1269 | ||
1270 | if (bm.bmv_count < 2) | |
1271 | return -XFS_ERROR(EINVAL); | |
1272 | ||
1273 | iflags = (cmd == XFS_IOC_GETBMAPA ? BMV_IF_ATTRFORK : 0); | |
1274 | if (ioflags & IO_INVIS) | |
1275 | iflags |= BMV_IF_NO_DMAPI_READ; | |
1276 | ||
993386c1 | 1277 | error = xfs_getbmap(ip, &bm, (struct getbmap __user *)arg+1, iflags); |
1da177e4 LT |
1278 | if (error) |
1279 | return -error; | |
1280 | ||
1281 | if (copy_to_user(arg, &bm, sizeof(bm))) | |
1282 | return -XFS_ERROR(EFAULT); | |
1283 | return 0; | |
1284 | } | |
1285 | ||
1286 | STATIC int | |
1287 | xfs_ioc_getbmapx( | |
993386c1 | 1288 | struct xfs_inode *ip, |
1da177e4 LT |
1289 | void __user *arg) |
1290 | { | |
1291 | struct getbmapx bmx; | |
1292 | struct getbmap bm; | |
1293 | int iflags; | |
1294 | int error; | |
1295 | ||
1296 | if (copy_from_user(&bmx, arg, sizeof(bmx))) | |
1297 | return -XFS_ERROR(EFAULT); | |
1298 | ||
1299 | if (bmx.bmv_count < 2) | |
1300 | return -XFS_ERROR(EINVAL); | |
1301 | ||
1302 | /* | |
1303 | * Map input getbmapx structure to a getbmap | |
1304 | * structure for xfs_getbmap. | |
1305 | */ | |
1306 | GETBMAP_CONVERT(bmx, bm); | |
1307 | ||
1308 | iflags = bmx.bmv_iflags; | |
1309 | ||
1310 | if (iflags & (~BMV_IF_VALID)) | |
1311 | return -XFS_ERROR(EINVAL); | |
1312 | ||
1313 | iflags |= BMV_IF_EXTENDED; | |
1314 | ||
993386c1 | 1315 | error = xfs_getbmap(ip, &bm, (struct getbmapx __user *)arg+1, iflags); |
1da177e4 LT |
1316 | if (error) |
1317 | return -error; | |
1318 | ||
1319 | GETBMAP_CONVERT(bm, bmx); | |
1320 | ||
1321 | if (copy_to_user(arg, &bmx, sizeof(bmx))) | |
1322 | return -XFS_ERROR(EFAULT); | |
1323 | ||
1324 | return 0; | |
1325 | } | |
df26cfe8 LM |
1326 | |
1327 | int | |
1328 | xfs_ioctl( | |
1329 | xfs_inode_t *ip, | |
1330 | struct file *filp, | |
1331 | int ioflags, | |
1332 | unsigned int cmd, | |
1333 | void __user *arg) | |
1334 | { | |
1335 | struct inode *inode = filp->f_path.dentry->d_inode; | |
1336 | xfs_mount_t *mp = ip->i_mount; | |
1337 | int error; | |
1338 | ||
1339 | xfs_itrace_entry(XFS_I(inode)); | |
1340 | switch (cmd) { | |
1341 | ||
1342 | case XFS_IOC_ALLOCSP: | |
1343 | case XFS_IOC_FREESP: | |
1344 | case XFS_IOC_RESVSP: | |
1345 | case XFS_IOC_UNRESVSP: | |
1346 | case XFS_IOC_ALLOCSP64: | |
1347 | case XFS_IOC_FREESP64: | |
1348 | case XFS_IOC_RESVSP64: | |
1349 | case XFS_IOC_UNRESVSP64: | |
1350 | /* | |
1351 | * Only allow the sys admin to reserve space unless | |
1352 | * unwritten extents are enabled. | |
1353 | */ | |
1354 | if (!xfs_sb_version_hasextflgbit(&mp->m_sb) && | |
1355 | !capable(CAP_SYS_ADMIN)) | |
1356 | return -EPERM; | |
1357 | ||
1358 | return xfs_ioc_space(ip, inode, filp, ioflags, cmd, arg); | |
1359 | ||
1360 | case XFS_IOC_DIOINFO: { | |
1361 | struct dioattr da; | |
1362 | xfs_buftarg_t *target = | |
1363 | XFS_IS_REALTIME_INODE(ip) ? | |
1364 | mp->m_rtdev_targp : mp->m_ddev_targp; | |
1365 | ||
1366 | da.d_mem = da.d_miniosz = 1 << target->bt_sshift; | |
1367 | da.d_maxiosz = INT_MAX & ~(da.d_miniosz - 1); | |
1368 | ||
1369 | if (copy_to_user(arg, &da, sizeof(da))) | |
1370 | return -XFS_ERROR(EFAULT); | |
1371 | return 0; | |
1372 | } | |
1373 | ||
1374 | case XFS_IOC_FSBULKSTAT_SINGLE: | |
1375 | case XFS_IOC_FSBULKSTAT: | |
1376 | case XFS_IOC_FSINUMBERS: | |
1377 | return xfs_ioc_bulkstat(mp, cmd, arg); | |
1378 | ||
1379 | case XFS_IOC_FSGEOMETRY_V1: | |
1380 | return xfs_ioc_fsgeometry_v1(mp, arg); | |
1381 | ||
1382 | case XFS_IOC_FSGEOMETRY: | |
1383 | return xfs_ioc_fsgeometry(mp, arg); | |
1384 | ||
1385 | case XFS_IOC_GETVERSION: | |
1386 | return put_user(inode->i_generation, (int __user *)arg); | |
1387 | ||
1388 | case XFS_IOC_FSGETXATTR: | |
1389 | return xfs_ioc_fsgetxattr(ip, 0, arg); | |
1390 | case XFS_IOC_FSGETXATTRA: | |
1391 | return xfs_ioc_fsgetxattr(ip, 1, arg); | |
65e67f51 LM |
1392 | case XFS_IOC_FSSETXATTR: |
1393 | return xfs_ioc_fssetxattr(ip, filp, arg); | |
df26cfe8 | 1394 | case XFS_IOC_GETXFLAGS: |
65e67f51 | 1395 | return xfs_ioc_getxflags(ip, arg); |
df26cfe8 | 1396 | case XFS_IOC_SETXFLAGS: |
65e67f51 | 1397 | return xfs_ioc_setxflags(ip, filp, arg); |
df26cfe8 LM |
1398 | |
1399 | case XFS_IOC_FSSETDM: { | |
1400 | struct fsdmidata dmi; | |
1401 | ||
1402 | if (copy_from_user(&dmi, arg, sizeof(dmi))) | |
1403 | return -XFS_ERROR(EFAULT); | |
1404 | ||
1405 | error = xfs_set_dmattrs(ip, dmi.fsd_dmevmask, | |
1406 | dmi.fsd_dmstate); | |
1407 | return -error; | |
1408 | } | |
1409 | ||
1410 | case XFS_IOC_GETBMAP: | |
1411 | case XFS_IOC_GETBMAPA: | |
1412 | return xfs_ioc_getbmap(ip, ioflags, cmd, arg); | |
1413 | ||
1414 | case XFS_IOC_GETBMAPX: | |
1415 | return xfs_ioc_getbmapx(ip, arg); | |
1416 | ||
1417 | case XFS_IOC_FD_TO_HANDLE: | |
1418 | case XFS_IOC_PATH_TO_HANDLE: | |
1419 | case XFS_IOC_PATH_TO_FSHANDLE: | |
1420 | return xfs_find_handle(cmd, arg); | |
1421 | ||
1422 | case XFS_IOC_OPEN_BY_HANDLE: | |
1423 | return xfs_open_by_handle(mp, arg, filp, inode); | |
1424 | ||
1425 | case XFS_IOC_FSSETDM_BY_HANDLE: | |
1426 | return xfs_fssetdm_by_handle(mp, arg, inode); | |
1427 | ||
1428 | case XFS_IOC_READLINK_BY_HANDLE: | |
1429 | return xfs_readlink_by_handle(mp, arg, inode); | |
1430 | ||
1431 | case XFS_IOC_ATTRLIST_BY_HANDLE: | |
1432 | return xfs_attrlist_by_handle(mp, arg, inode); | |
1433 | ||
1434 | case XFS_IOC_ATTRMULTI_BY_HANDLE: | |
42a74f20 | 1435 | return xfs_attrmulti_by_handle(mp, arg, filp, inode); |
df26cfe8 LM |
1436 | |
1437 | case XFS_IOC_SWAPEXT: { | |
1438 | error = xfs_swapext((struct xfs_swapext __user *)arg); | |
1439 | return -error; | |
1440 | } | |
1441 | ||
1442 | case XFS_IOC_FSCOUNTS: { | |
1443 | xfs_fsop_counts_t out; | |
1444 | ||
1445 | error = xfs_fs_counts(mp, &out); | |
1446 | if (error) | |
1447 | return -error; | |
1448 | ||
1449 | if (copy_to_user(arg, &out, sizeof(out))) | |
1450 | return -XFS_ERROR(EFAULT); | |
1451 | return 0; | |
1452 | } | |
1453 | ||
1454 | case XFS_IOC_SET_RESBLKS: { | |
1455 | xfs_fsop_resblks_t inout; | |
1456 | __uint64_t in; | |
1457 | ||
1458 | if (!capable(CAP_SYS_ADMIN)) | |
1459 | return -EPERM; | |
1460 | ||
1461 | if (copy_from_user(&inout, arg, sizeof(inout))) | |
1462 | return -XFS_ERROR(EFAULT); | |
1463 | ||
1464 | /* input parameter is passed in resblks field of structure */ | |
1465 | in = inout.resblks; | |
1466 | error = xfs_reserve_blocks(mp, &in, &inout); | |
1467 | if (error) | |
1468 | return -error; | |
1469 | ||
1470 | if (copy_to_user(arg, &inout, sizeof(inout))) | |
1471 | return -XFS_ERROR(EFAULT); | |
1472 | return 0; | |
1473 | } | |
1474 | ||
1475 | case XFS_IOC_GET_RESBLKS: { | |
1476 | xfs_fsop_resblks_t out; | |
1477 | ||
1478 | if (!capable(CAP_SYS_ADMIN)) | |
1479 | return -EPERM; | |
1480 | ||
1481 | error = xfs_reserve_blocks(mp, NULL, &out); | |
1482 | if (error) | |
1483 | return -error; | |
1484 | ||
1485 | if (copy_to_user(arg, &out, sizeof(out))) | |
1486 | return -XFS_ERROR(EFAULT); | |
1487 | ||
1488 | return 0; | |
1489 | } | |
1490 | ||
1491 | case XFS_IOC_FSGROWFSDATA: { | |
1492 | xfs_growfs_data_t in; | |
1493 | ||
1494 | if (!capable(CAP_SYS_ADMIN)) | |
1495 | return -EPERM; | |
1496 | ||
1497 | if (copy_from_user(&in, arg, sizeof(in))) | |
1498 | return -XFS_ERROR(EFAULT); | |
1499 | ||
1500 | error = xfs_growfs_data(mp, &in); | |
1501 | return -error; | |
1502 | } | |
1503 | ||
1504 | case XFS_IOC_FSGROWFSLOG: { | |
1505 | xfs_growfs_log_t in; | |
1506 | ||
1507 | if (!capable(CAP_SYS_ADMIN)) | |
1508 | return -EPERM; | |
1509 | ||
1510 | if (copy_from_user(&in, arg, sizeof(in))) | |
1511 | return -XFS_ERROR(EFAULT); | |
1512 | ||
1513 | error = xfs_growfs_log(mp, &in); | |
1514 | return -error; | |
1515 | } | |
1516 | ||
1517 | case XFS_IOC_FSGROWFSRT: { | |
1518 | xfs_growfs_rt_t in; | |
1519 | ||
1520 | if (!capable(CAP_SYS_ADMIN)) | |
1521 | return -EPERM; | |
1522 | ||
1523 | if (copy_from_user(&in, arg, sizeof(in))) | |
1524 | return -XFS_ERROR(EFAULT); | |
1525 | ||
1526 | error = xfs_growfs_rt(mp, &in); | |
1527 | return -error; | |
1528 | } | |
1529 | ||
1530 | case XFS_IOC_FREEZE: | |
1531 | if (!capable(CAP_SYS_ADMIN)) | |
1532 | return -EPERM; | |
1533 | ||
1534 | if (inode->i_sb->s_frozen == SB_UNFROZEN) | |
1535 | freeze_bdev(inode->i_sb->s_bdev); | |
1536 | return 0; | |
1537 | ||
1538 | case XFS_IOC_THAW: | |
1539 | if (!capable(CAP_SYS_ADMIN)) | |
1540 | return -EPERM; | |
1541 | if (inode->i_sb->s_frozen != SB_UNFROZEN) | |
1542 | thaw_bdev(inode->i_sb->s_bdev, inode->i_sb); | |
1543 | return 0; | |
1544 | ||
1545 | case XFS_IOC_GOINGDOWN: { | |
1546 | __uint32_t in; | |
1547 | ||
1548 | if (!capable(CAP_SYS_ADMIN)) | |
1549 | return -EPERM; | |
1550 | ||
1551 | if (get_user(in, (__uint32_t __user *)arg)) | |
1552 | return -XFS_ERROR(EFAULT); | |
1553 | ||
1554 | error = xfs_fs_goingdown(mp, in); | |
1555 | return -error; | |
1556 | } | |
1557 | ||
1558 | case XFS_IOC_ERROR_INJECTION: { | |
1559 | xfs_error_injection_t in; | |
1560 | ||
1561 | if (!capable(CAP_SYS_ADMIN)) | |
1562 | return -EPERM; | |
1563 | ||
1564 | if (copy_from_user(&in, arg, sizeof(in))) | |
1565 | return -XFS_ERROR(EFAULT); | |
1566 | ||
1567 | error = xfs_errortag_add(in.errtag, mp); | |
1568 | return -error; | |
1569 | } | |
1570 | ||
1571 | case XFS_IOC_ERROR_CLEARALL: | |
1572 | if (!capable(CAP_SYS_ADMIN)) | |
1573 | return -EPERM; | |
1574 | ||
1575 | error = xfs_errortag_clearall(mp, 1); | |
1576 | return -error; | |
1577 | ||
1578 | default: | |
1579 | return -ENOTTY; | |
1580 | } | |
1581 | } |