24 static struct dentry *lock_parent(struct dentry *dentry)  in lock_parent()  argument
26 	struct dentry *dir;  in lock_parent()
28 	dir = dget_parent(dentry);  in lock_parent()
33 static void unlock_dir(struct dentry *dir)  in unlock_dir()
115 static int ecryptfs_interpose(struct dentry *lower_dentry,  in ecryptfs_interpose()
116 			      struct dentry *dentry, struct super_block *sb)  in ecryptfs_interpose()  argument
122 	d_instantiate(dentry, inode);  in ecryptfs_interpose()
127 static int ecryptfs_do_unlink(struct inode *dir, struct dentry *dentry,  in ecryptfs_do_unlink()  argument
130 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_do_unlink()
131 	struct dentry *lower_dir_dentry;  in ecryptfs_do_unlink()
135 	lower_dir_dentry = ecryptfs_dentry_to_lower(dentry->d_parent);  in ecryptfs_do_unlink()
156 		d_drop(dentry);  in ecryptfs_do_unlink()
174 		   struct dentry *ecryptfs_dentry, umode_t mode)  in ecryptfs_do_create()
177 	struct dentry *lower_dentry;  in ecryptfs_do_create()
178 	struct dentry *lower_dir_dentry;  in ecryptfs_do_create()
211 int ecryptfs_initialize_file(struct dentry *ecryptfs_dentry,  in ecryptfs_initialize_file()
257 ecryptfs_create(struct inode *directory_inode, struct dentry *ecryptfs_dentry,  in ecryptfs_create()
285 static int ecryptfs_i_size_read(struct dentry *dentry, struct inode *inode)  in ecryptfs_i_size_read()  argument
290 	rc = ecryptfs_get_lower_file(dentry, inode);  in ecryptfs_i_size_read()
295 			dentry, rc);  in ecryptfs_i_size_read()
307 		rc = ecryptfs_read_and_validate_xattr_region(dentry, inode);  in ecryptfs_i_size_read()
319 static struct dentry *ecryptfs_lookup_interpose(struct dentry *dentry,  in ecryptfs_lookup_interpose()  argument
320 				     struct dentry *lower_dentry)  in ecryptfs_lookup_interpose()
322 	struct path *path = ecryptfs_dentry_to_lower_path(dentry->d_parent);  in ecryptfs_lookup_interpose()
333 	fsstack_copy_attr_atime(d_inode(dentry->d_parent),  in ecryptfs_lookup_interpose()
334 				d_inode(path->dentry));  in ecryptfs_lookup_interpose()
337 	ecryptfs_set_dentry_private(dentry, dentry_info);  in ecryptfs_lookup_interpose()
339 	dentry_info->lower_path.dentry = lower_dentry;  in ecryptfs_lookup_interpose()
351 		d_add(dentry, NULL);  in ecryptfs_lookup_interpose()
354 	inode = __ecryptfs_get_inode(lower_inode, dentry->d_sb);  in ecryptfs_lookup_interpose()
361 		rc = ecryptfs_i_size_read(dentry, inode);  in ecryptfs_lookup_interpose()
370 	return d_splice_alias(inode, dentry);  in ecryptfs_lookup_interpose()
382 static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,  in ecryptfs_lookup()
383 				      struct dentry *ecryptfs_dentry,  in ecryptfs_lookup()
388 	struct dentry *lower_dir_dentry, *lower_dentry;  in ecryptfs_lookup()
391 	struct dentry *res;  in ecryptfs_lookup()
424 static int ecryptfs_link(struct dentry *old_dentry, struct inode *dir,  in ecryptfs_link()
425 			 struct dentry *new_dentry)  in ecryptfs_link()
427 	struct dentry *lower_old_dentry;  in ecryptfs_link()
428 	struct dentry *lower_new_dentry;  in ecryptfs_link()
429 	struct dentry *lower_dir_dentry;  in ecryptfs_link()
458 static int ecryptfs_unlink(struct inode *dir, struct dentry *dentry)  in ecryptfs_unlink()  argument
460 	return ecryptfs_do_unlink(dir, dentry, d_inode(dentry));  in ecryptfs_unlink()
463 static int ecryptfs_symlink(struct inode *dir, struct dentry *dentry,  in ecryptfs_symlink()  argument
467 	struct dentry *lower_dentry;  in ecryptfs_symlink()
468 	struct dentry *lower_dir_dentry;  in ecryptfs_symlink()
473 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_symlink()
489 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_symlink()
497 	if (d_really_is_negative(dentry))  in ecryptfs_symlink()
498 		d_drop(dentry);  in ecryptfs_symlink()
502 static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)  in ecryptfs_mkdir()  argument
505 	struct dentry *lower_dentry;  in ecryptfs_mkdir()
506 	struct dentry *lower_dir_dentry;  in ecryptfs_mkdir()
508 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_mkdir()
513 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mkdir()
521 	if (d_really_is_negative(dentry))  in ecryptfs_mkdir()
522 		d_drop(dentry);  in ecryptfs_mkdir()
526 static int ecryptfs_rmdir(struct inode *dir, struct dentry *dentry)  in ecryptfs_rmdir()  argument
528 	struct dentry *lower_dentry;  in ecryptfs_rmdir()
529 	struct dentry *lower_dir_dentry;  in ecryptfs_rmdir()
533 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_rmdir()
534 	lower_dir_dentry = ecryptfs_dentry_to_lower(dentry->d_parent);  in ecryptfs_rmdir()
546 		clear_nlink(d_inode(dentry));  in ecryptfs_rmdir()
553 		d_drop(dentry);  in ecryptfs_rmdir()
558 ecryptfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)  in ecryptfs_mknod()  argument
561 	struct dentry *lower_dentry;  in ecryptfs_mknod()
562 	struct dentry *lower_dir_dentry;  in ecryptfs_mknod()
564 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_mknod()
569 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mknod()
576 	if (d_really_is_negative(dentry))  in ecryptfs_mknod()
577 		d_drop(dentry);  in ecryptfs_mknod()
582 ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,  in ecryptfs_rename()
583 		struct inode *new_dir, struct dentry *new_dentry,  in ecryptfs_rename()
587 	struct dentry *lower_old_dentry;  in ecryptfs_rename()
588 	struct dentry *lower_new_dentry;  in ecryptfs_rename()
589 	struct dentry *lower_old_dir_dentry;  in ecryptfs_rename()
590 	struct dentry *lower_new_dir_dentry;  in ecryptfs_rename()
591 	struct dentry *trap;  in ecryptfs_rename()
639 static char *ecryptfs_readlink_lower(struct dentry *dentry, size_t *bufsiz)  in ecryptfs_readlink_lower()  argument
642 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_readlink_lower()
651 	rc = ecryptfs_decode_and_decrypt_filename(&buf, bufsiz, dentry->d_sb,  in ecryptfs_readlink_lower()
660 static const char *ecryptfs_get_link(struct dentry *dentry,  in ecryptfs_get_link()  argument
667 	if (!dentry)  in ecryptfs_get_link()
670 	buf = ecryptfs_readlink_lower(dentry, &len);  in ecryptfs_get_link()
673 	fsstack_copy_attr_atime(d_inode(dentry),  in ecryptfs_get_link()
674 				d_inode(ecryptfs_dentry_to_lower(dentry)));  in ecryptfs_get_link()
725 static int truncate_upper(struct dentry *dentry, struct iattr *ia,  in truncate_upper()  argument
729 	struct inode *inode = d_inode(dentry);  in truncate_upper()
739 	rc = ecryptfs_get_lower_file(dentry, inode);  in truncate_upper()
742 	crypt_stat = &ecryptfs_inode_to_private(d_inode(dentry))->crypt_stat;  in truncate_upper()
843 int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)  in ecryptfs_truncate()  argument
849 	rc = ecryptfs_inode_newsize_ok(d_inode(dentry), new_length);  in ecryptfs_truncate()
853 	rc = truncate_upper(dentry, &ia, &lower_ia);  in ecryptfs_truncate()
855 		struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_truncate()
882 static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)  in ecryptfs_setattr()  argument
885 	struct dentry *lower_dentry;  in ecryptfs_setattr()
891 	crypt_stat = &ecryptfs_inode_to_private(d_inode(dentry))->crypt_stat;  in ecryptfs_setattr()
897 	inode = d_inode(dentry);  in ecryptfs_setattr()
899 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setattr()
901 	if (d_is_dir(dentry))  in ecryptfs_setattr()
903 	else if (d_is_reg(dentry)  in ecryptfs_setattr()
909 			dentry->d_sb)->mount_crypt_stat;  in ecryptfs_setattr()
910 		rc = ecryptfs_get_lower_file(dentry, inode);  in ecryptfs_setattr()
915 		rc = ecryptfs_read_metadata(dentry);  in ecryptfs_setattr()
936 	rc = setattr_prepare(dentry, ia);  in ecryptfs_setattr()
949 		rc = truncate_upper(dentry, ia, &lower_ia);  in ecryptfs_setattr()
972 	struct dentry *dentry = path->dentry;  in ecryptfs_getattr_link()  local
977 						dentry->d_sb)->mount_crypt_stat;  in ecryptfs_getattr_link()
978 	generic_fillattr(d_inode(dentry), stat);  in ecryptfs_getattr_link()
983 		target = ecryptfs_readlink_lower(dentry, &targetsiz);  in ecryptfs_getattr_link()
997 	struct dentry *dentry = path->dentry;  in ecryptfs_getattr()  local
1001 	rc = vfs_getattr(ecryptfs_dentry_to_lower_path(dentry), &lower_stat,  in ecryptfs_getattr()
1004 		fsstack_copy_attr_all(d_inode(dentry),  in ecryptfs_getattr()
1005 				      ecryptfs_inode_to_lower(d_inode(dentry)));  in ecryptfs_getattr()
1006 		generic_fillattr(d_inode(dentry), stat);  in ecryptfs_getattr()
1013 ecryptfs_setxattr(struct dentry *dentry, struct inode *inode,  in ecryptfs_setxattr()  argument
1018 	struct dentry *lower_dentry;  in ecryptfs_setxattr()
1020 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setxattr()
1033 ecryptfs_getxattr_lower(struct dentry *lower_dentry, struct inode *lower_inode,  in ecryptfs_getxattr_lower()
1051 ecryptfs_getxattr(struct dentry *dentry, struct inode *inode,  in ecryptfs_getxattr()  argument
1054 	return ecryptfs_getxattr_lower(ecryptfs_dentry_to_lower(dentry),  in ecryptfs_getxattr()
1060 ecryptfs_listxattr(struct dentry *dentry, char *list, size_t size)  in ecryptfs_listxattr()  argument
1063 	struct dentry *lower_dentry;  in ecryptfs_listxattr()
1065 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_listxattr()
1077 static int ecryptfs_removexattr(struct dentry *dentry, struct inode *inode,  in ecryptfs_removexattr()  argument
1081 	struct dentry *lower_dentry;  in ecryptfs_removexattr()
1084 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_removexattr()
1128 			      struct dentry *dentry, struct inode *inode,  in ecryptfs_xattr_get()  argument
1132 	return ecryptfs_getxattr(dentry, inode, name, buffer, size);  in ecryptfs_xattr_get()
1136 			      struct dentry *dentry, struct inode *inode,  in ecryptfs_xattr_set()  argument
1141 		return ecryptfs_setxattr(dentry, inode, name, value, size, flags);  in ecryptfs_xattr_set()
1144 		return ecryptfs_removexattr(dentry, inode, name);  in ecryptfs_xattr_set()