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-rw-r--r--fs/open.c134
1 files changed, 0 insertions, 134 deletions
diff --git a/fs/open.c b/fs/open.c
index 304c1c7814cb..35c3e454458e 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -6,7 +6,6 @@
6 6
7#include <linux/string.h> 7#include <linux/string.h>
8#include <linux/mm.h> 8#include <linux/mm.h>
9#include <linux/utime.h>
10#include <linux/file.h> 9#include <linux/file.h>
11#include <linux/smp_lock.h> 10#include <linux/smp_lock.h>
12#include <linux/quotaops.h> 11#include <linux/quotaops.h>
@@ -29,8 +28,6 @@
29#include <linux/rcupdate.h> 28#include <linux/rcupdate.h>
30#include <linux/audit.h> 29#include <linux/audit.h>
31 30
32#include <asm/unistd.h>
33
34int vfs_statfs(struct dentry *dentry, struct kstatfs *buf) 31int vfs_statfs(struct dentry *dentry, struct kstatfs *buf)
35{ 32{
36 int retval = -ENODEV; 33 int retval = -ENODEV;
@@ -353,137 +350,6 @@ asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length)
353} 350}
354#endif 351#endif
355 352
356#ifdef __ARCH_WANT_SYS_UTIME
357
358/*
359 * sys_utime() can be implemented in user-level using sys_utimes().
360 * Is this for backwards compatibility? If so, why not move it
361 * into the appropriate arch directory (for those architectures that
362 * need it).
363 */
364
365/* If times==NULL, set access and modification to current time,
366 * must be owner or have write permission.
367 * Else, update from *times, must be owner or super user.
368 */
369asmlinkage long sys_utime(char __user * filename, struct utimbuf __user * times)
370{
371 int error;
372 struct nameidata nd;
373 struct inode * inode;
374 struct iattr newattrs;
375
376 error = user_path_walk(filename, &nd);
377 if (error)
378 goto out;
379 inode = nd.dentry->d_inode;
380
381 error = -EROFS;
382 if (IS_RDONLY(inode))
383 goto dput_and_out;
384
385 /* Don't worry, the checks are done in inode_change_ok() */
386 newattrs.ia_valid = ATTR_CTIME | ATTR_MTIME | ATTR_ATIME;
387 if (times) {
388 error = -EPERM;
389 if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
390 goto dput_and_out;
391
392 error = get_user(newattrs.ia_atime.tv_sec, &times->actime);
393 newattrs.ia_atime.tv_nsec = 0;
394 if (!error)
395 error = get_user(newattrs.ia_mtime.tv_sec, &times->modtime);
396 newattrs.ia_mtime.tv_nsec = 0;
397 if (error)
398 goto dput_and_out;
399
400 newattrs.ia_valid |= ATTR_ATIME_SET | ATTR_MTIME_SET;
401 } else {
402 error = -EACCES;
403 if (IS_IMMUTABLE(inode))
404 goto dput_and_out;
405
406 if (current->fsuid != inode->i_uid &&
407 (error = vfs_permission(&nd, MAY_WRITE)) != 0)
408 goto dput_and_out;
409 }
410 mutex_lock(&inode->i_mutex);
411 error = notify_change(nd.dentry, &newattrs);
412 mutex_unlock(&inode->i_mutex);
413dput_and_out:
414 path_release(&nd);
415out:
416 return error;
417}
418
419#endif
420
421/* If times==NULL, set access and modification to current time,
422 * must be owner or have write permission.
423 * Else, update from *times, must be owner or super user.
424 */
425long do_utimes(int dfd, char __user *filename, struct timeval *times)
426{
427 int error;
428 struct nameidata nd;
429 struct inode * inode;
430 struct iattr newattrs;
431
432 error = __user_walk_fd(dfd, filename, LOOKUP_FOLLOW, &nd);
433
434 if (error)
435 goto out;
436 inode = nd.dentry->d_inode;
437
438 error = -EROFS;
439 if (IS_RDONLY(inode))
440 goto dput_and_out;
441
442 /* Don't worry, the checks are done in inode_change_ok() */
443 newattrs.ia_valid = ATTR_CTIME | ATTR_MTIME | ATTR_ATIME;
444 if (times) {
445 error = -EPERM;
446 if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
447 goto dput_and_out;
448
449 newattrs.ia_atime.tv_sec = times[0].tv_sec;
450 newattrs.ia_atime.tv_nsec = times[0].tv_usec * 1000;
451 newattrs.ia_mtime.tv_sec = times[1].tv_sec;
452 newattrs.ia_mtime.tv_nsec = times[1].tv_usec * 1000;
453 newattrs.ia_valid |= ATTR_ATIME_SET | ATTR_MTIME_SET;
454 } else {
455 error = -EACCES;
456 if (IS_IMMUTABLE(inode))
457 goto dput_and_out;
458
459 if (current->fsuid != inode->i_uid &&
460 (error = vfs_permission(&nd, MAY_WRITE)) != 0)
461 goto dput_and_out;
462 }
463 mutex_lock(&inode->i_mutex);
464 error = notify_change(nd.dentry, &newattrs);
465 mutex_unlock(&inode->i_mutex);
466dput_and_out:
467 path_release(&nd);
468out:
469 return error;
470}
471
472asmlinkage long sys_futimesat(int dfd, char __user *filename, struct timeval __user *utimes)
473{
474 struct timeval times[2];
475
476 if (utimes && copy_from_user(&times, utimes, sizeof(times)))
477 return -EFAULT;
478 return do_utimes(dfd, filename, utimes ? times : NULL);
479}
480
481asmlinkage long sys_utimes(char __user *filename, struct timeval __user *utimes)
482{
483 return sys_futimesat(AT_FDCWD, filename, utimes);
484}
485
486
487/* 353/*
488 * access() needs to use the real uid/gid, not the effective uid/gid. 354 * access() needs to use the real uid/gid, not the effective uid/gid.
489 * We do this by temporarily clearing all FS-related capabilities and 355 * We do this by temporarily clearing all FS-related capabilities and