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authorLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-02-17 21:51:42 -0500
committerLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-02-17 21:51:42 -0500
commitc58310bf4933986513020fa90b4190c7492995ae (patch)
tree143f2c7578d02ebef5db8fc57ae69e951ae0e2ee /fs/open.c
parent269cdfaf769f5cd831284cc831790c7c5038040f (diff)
parent1309d4e68497184d2fd87e892ddf14076c2bda98 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus
Diffstat (limited to 'fs/open.c')
-rw-r--r--fs/open.c66
1 files changed, 31 insertions, 35 deletions
diff --git a/fs/open.c b/fs/open.c
index 4932b4d1da05..54198538b67e 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -127,10 +127,10 @@ asmlinkage long sys_statfs(const char __user * path, struct statfs __user * buf)
127 error = user_path_walk(path, &nd); 127 error = user_path_walk(path, &nd);
128 if (!error) { 128 if (!error) {
129 struct statfs tmp; 129 struct statfs tmp;
130 error = vfs_statfs_native(nd.dentry, &tmp); 130 error = vfs_statfs_native(nd.path.dentry, &tmp);
131 if (!error && copy_to_user(buf, &tmp, sizeof(tmp))) 131 if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
132 error = -EFAULT; 132 error = -EFAULT;
133 path_release(&nd); 133 path_put(&nd.path);
134 } 134 }
135 return error; 135 return error;
136} 136}
@@ -146,10 +146,10 @@ asmlinkage long sys_statfs64(const char __user *path, size_t sz, struct statfs64
146 error = user_path_walk(path, &nd); 146 error = user_path_walk(path, &nd);
147 if (!error) { 147 if (!error) {
148 struct statfs64 tmp; 148 struct statfs64 tmp;
149 error = vfs_statfs64(nd.dentry, &tmp); 149 error = vfs_statfs64(nd.path.dentry, &tmp);
150 if (!error && copy_to_user(buf, &tmp, sizeof(tmp))) 150 if (!error && copy_to_user(buf, &tmp, sizeof(tmp)))
151 error = -EFAULT; 151 error = -EFAULT;
152 path_release(&nd); 152 path_put(&nd.path);
153 } 153 }
154 return error; 154 return error;
155} 155}
@@ -233,7 +233,7 @@ static long do_sys_truncate(const char __user * path, loff_t length)
233 error = user_path_walk(path, &nd); 233 error = user_path_walk(path, &nd);
234 if (error) 234 if (error)
235 goto out; 235 goto out;
236 inode = nd.dentry->d_inode; 236 inode = nd.path.dentry->d_inode;
237 237
238 /* For directories it's -EISDIR, for other non-regulars - -EINVAL */ 238 /* For directories it's -EISDIR, for other non-regulars - -EINVAL */
239 error = -EISDIR; 239 error = -EISDIR;
@@ -271,13 +271,13 @@ static long do_sys_truncate(const char __user * path, loff_t length)
271 error = locks_verify_truncate(inode, NULL, length); 271 error = locks_verify_truncate(inode, NULL, length);
272 if (!error) { 272 if (!error) {
273 DQUOT_INIT(inode); 273 DQUOT_INIT(inode);
274 error = do_truncate(nd.dentry, length, 0, NULL); 274 error = do_truncate(nd.path.dentry, length, 0, NULL);
275 } 275 }
276 276
277put_write_and_out: 277put_write_and_out:
278 put_write_access(inode); 278 put_write_access(inode);
279dput_and_out: 279dput_and_out:
280 path_release(&nd); 280 path_put(&nd.path);
281out: 281out:
282 return error; 282 return error;
283} 283}
@@ -455,14 +455,14 @@ asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode)
455 res = vfs_permission(&nd, mode); 455 res = vfs_permission(&nd, mode);
456 /* SuS v2 requires we report a read only fs too */ 456 /* SuS v2 requires we report a read only fs too */
457 if(res || !(mode & S_IWOTH) || 457 if(res || !(mode & S_IWOTH) ||
458 special_file(nd.dentry->d_inode->i_mode)) 458 special_file(nd.path.dentry->d_inode->i_mode))
459 goto out_path_release; 459 goto out_path_release;
460 460
461 if(IS_RDONLY(nd.dentry->d_inode)) 461 if(IS_RDONLY(nd.path.dentry->d_inode))
462 res = -EROFS; 462 res = -EROFS;
463 463
464out_path_release: 464out_path_release:
465 path_release(&nd); 465 path_put(&nd.path);
466out: 466out:
467 current->fsuid = old_fsuid; 467 current->fsuid = old_fsuid;
468 current->fsgid = old_fsgid; 468 current->fsgid = old_fsgid;
@@ -490,10 +490,10 @@ asmlinkage long sys_chdir(const char __user * filename)
490 if (error) 490 if (error)
491 goto dput_and_out; 491 goto dput_and_out;
492 492
493 set_fs_pwd(current->fs, nd.mnt, nd.dentry); 493 set_fs_pwd(current->fs, &nd.path);
494 494
495dput_and_out: 495dput_and_out:
496 path_release(&nd); 496 path_put(&nd.path);
497out: 497out:
498 return error; 498 return error;
499} 499}
@@ -501,9 +501,7 @@ out:
501asmlinkage long sys_fchdir(unsigned int fd) 501asmlinkage long sys_fchdir(unsigned int fd)
502{ 502{
503 struct file *file; 503 struct file *file;
504 struct dentry *dentry;
505 struct inode *inode; 504 struct inode *inode;
506 struct vfsmount *mnt;
507 int error; 505 int error;
508 506
509 error = -EBADF; 507 error = -EBADF;
@@ -511,9 +509,7 @@ asmlinkage long sys_fchdir(unsigned int fd)
511 if (!file) 509 if (!file)
512 goto out; 510 goto out;
513 511
514 dentry = file->f_path.dentry; 512 inode = file->f_path.dentry->d_inode;
515 mnt = file->f_path.mnt;
516 inode = dentry->d_inode;
517 513
518 error = -ENOTDIR; 514 error = -ENOTDIR;
519 if (!S_ISDIR(inode->i_mode)) 515 if (!S_ISDIR(inode->i_mode))
@@ -521,7 +517,7 @@ asmlinkage long sys_fchdir(unsigned int fd)
521 517
522 error = file_permission(file, MAY_EXEC); 518 error = file_permission(file, MAY_EXEC);
523 if (!error) 519 if (!error)
524 set_fs_pwd(current->fs, mnt, dentry); 520 set_fs_pwd(current->fs, &file->f_path);
525out_putf: 521out_putf:
526 fput(file); 522 fput(file);
527out: 523out:
@@ -545,11 +541,11 @@ asmlinkage long sys_chroot(const char __user * filename)
545 if (!capable(CAP_SYS_CHROOT)) 541 if (!capable(CAP_SYS_CHROOT))
546 goto dput_and_out; 542 goto dput_and_out;
547 543
548 set_fs_root(current->fs, nd.mnt, nd.dentry); 544 set_fs_root(current->fs, &nd.path);
549 set_fs_altroot(); 545 set_fs_altroot();
550 error = 0; 546 error = 0;
551dput_and_out: 547dput_and_out:
552 path_release(&nd); 548 path_put(&nd.path);
553out: 549out:
554 return error; 550 return error;
555} 551}
@@ -602,7 +598,7 @@ asmlinkage long sys_fchmodat(int dfd, const char __user *filename,
602 error = __user_walk_fd(dfd, filename, LOOKUP_FOLLOW, &nd); 598 error = __user_walk_fd(dfd, filename, LOOKUP_FOLLOW, &nd);
603 if (error) 599 if (error)
604 goto out; 600 goto out;
605 inode = nd.dentry->d_inode; 601 inode = nd.path.dentry->d_inode;
606 602
607 error = -EROFS; 603 error = -EROFS;
608 if (IS_RDONLY(inode)) 604 if (IS_RDONLY(inode))
@@ -617,11 +613,11 @@ asmlinkage long sys_fchmodat(int dfd, const char __user *filename,
617 mode = inode->i_mode; 613 mode = inode->i_mode;
618 newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO); 614 newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
619 newattrs.ia_valid = ATTR_MODE | ATTR_CTIME; 615 newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
620 error = notify_change(nd.dentry, &newattrs); 616 error = notify_change(nd.path.dentry, &newattrs);
621 mutex_unlock(&inode->i_mutex); 617 mutex_unlock(&inode->i_mutex);
622 618
623dput_and_out: 619dput_and_out:
624 path_release(&nd); 620 path_put(&nd.path);
625out: 621out:
626 return error; 622 return error;
627} 623}
@@ -675,8 +671,8 @@ asmlinkage long sys_chown(const char __user * filename, uid_t user, gid_t group)
675 error = user_path_walk(filename, &nd); 671 error = user_path_walk(filename, &nd);
676 if (error) 672 if (error)
677 goto out; 673 goto out;
678 error = chown_common(nd.dentry, user, group); 674 error = chown_common(nd.path.dentry, user, group);
679 path_release(&nd); 675 path_put(&nd.path);
680out: 676out:
681 return error; 677 return error;
682} 678}
@@ -695,8 +691,8 @@ asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
695 error = __user_walk_fd(dfd, filename, follow, &nd); 691 error = __user_walk_fd(dfd, filename, follow, &nd);
696 if (error) 692 if (error)
697 goto out; 693 goto out;
698 error = chown_common(nd.dentry, user, group); 694 error = chown_common(nd.path.dentry, user, group);
699 path_release(&nd); 695 path_put(&nd.path);
700out: 696out:
701 return error; 697 return error;
702} 698}
@@ -709,8 +705,8 @@ asmlinkage long sys_lchown(const char __user * filename, uid_t user, gid_t group
709 error = user_path_walk_link(filename, &nd); 705 error = user_path_walk_link(filename, &nd);
710 if (error) 706 if (error)
711 goto out; 707 goto out;
712 error = chown_common(nd.dentry, user, group); 708 error = chown_common(nd.path.dentry, user, group);
713 path_release(&nd); 709 path_put(&nd.path);
714out: 710out:
715 return error; 711 return error;
716} 712}
@@ -863,7 +859,7 @@ struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry
863 goto out; 859 goto out;
864 if (IS_ERR(dentry)) 860 if (IS_ERR(dentry))
865 goto out_err; 861 goto out_err;
866 nd->intent.open.file = __dentry_open(dget(dentry), mntget(nd->mnt), 862 nd->intent.open.file = __dentry_open(dget(dentry), mntget(nd->path.mnt),
867 nd->intent.open.flags - 1, 863 nd->intent.open.flags - 1,
868 nd->intent.open.file, 864 nd->intent.open.file,
869 open); 865 open);
@@ -891,9 +887,10 @@ struct file *nameidata_to_filp(struct nameidata *nd, int flags)
891 filp = nd->intent.open.file; 887 filp = nd->intent.open.file;
892 /* Has the filesystem initialised the file for us? */ 888 /* Has the filesystem initialised the file for us? */
893 if (filp->f_path.dentry == NULL) 889 if (filp->f_path.dentry == NULL)
894 filp = __dentry_open(nd->dentry, nd->mnt, flags, filp, NULL); 890 filp = __dentry_open(nd->path.dentry, nd->path.mnt, flags, filp,
891 NULL);
895 else 892 else
896 path_release(nd); 893 path_put(&nd->path);
897 return filp; 894 return filp;
898} 895}
899 896
@@ -991,7 +988,7 @@ static void __put_unused_fd(struct files_struct *files, unsigned int fd)
991 files->next_fd = fd; 988 files->next_fd = fd;
992} 989}
993 990
994void fastcall put_unused_fd(unsigned int fd) 991void put_unused_fd(unsigned int fd)
995{ 992{
996 struct files_struct *files = current->files; 993 struct files_struct *files = current->files;
997 spin_lock(&files->file_lock); 994 spin_lock(&files->file_lock);
@@ -1014,7 +1011,7 @@ EXPORT_SYMBOL(put_unused_fd);
1014 * will follow. 1011 * will follow.
1015 */ 1012 */
1016 1013
1017void fastcall fd_install(unsigned int fd, struct file * file) 1014void fd_install(unsigned int fd, struct file *file)
1018{ 1015{
1019 struct files_struct *files = current->files; 1016 struct files_struct *files = current->files;
1020 struct fdtable *fdt; 1017 struct fdtable *fdt;
@@ -1061,7 +1058,6 @@ asmlinkage long sys_open(const char __user *filename, int flags, int mode)
1061 prevent_tail_call(ret); 1058 prevent_tail_call(ret);
1062 return ret; 1059 return ret;
1063} 1060}
1064EXPORT_UNUSED_SYMBOL_GPL(sys_open); /* To be deleted for 2.6.25 */
1065 1061
1066asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 1062asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
1067 int mode) 1063 int mode)