39 static struct dentry *lock_parent(struct dentry *dentry)  in lock_parent()  argument
41 	struct dentry *dir;  in lock_parent()
43 	dir = dget_parent(dentry);  in lock_parent()
48 static void unlock_dir(struct dentry *dir)  in unlock_dir()
131 static int ecryptfs_interpose(struct dentry *lower_dentry,  in ecryptfs_interpose()
132 			      struct dentry *dentry, struct super_block *sb)  in ecryptfs_interpose()  argument
138 	d_instantiate(dentry, inode);  in ecryptfs_interpose()
143 static int ecryptfs_do_unlink(struct inode *dir, struct dentry *dentry,  in ecryptfs_do_unlink()  argument
146 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_do_unlink()
148 	struct dentry *lower_dir_dentry;  in ecryptfs_do_unlink()
161 	d_drop(dentry);  in ecryptfs_do_unlink()
183 		   struct dentry *ecryptfs_dentry, umode_t mode)  in ecryptfs_do_create()
186 	struct dentry *lower_dentry;  in ecryptfs_do_create()
187 	struct dentry *lower_dir_dentry;  in ecryptfs_do_create()
220 int ecryptfs_initialize_file(struct dentry *ecryptfs_dentry,  in ecryptfs_initialize_file()
266 ecryptfs_create(struct inode *directory_inode, struct dentry *ecryptfs_dentry,  in ecryptfs_create()
297 static int ecryptfs_i_size_read(struct dentry *dentry, struct inode *inode)  in ecryptfs_i_size_read()  argument
302 	rc = ecryptfs_get_lower_file(dentry, inode);  in ecryptfs_i_size_read()
307 			dentry, rc);  in ecryptfs_i_size_read()
319 		rc = ecryptfs_read_and_validate_xattr_region(dentry, inode);  in ecryptfs_i_size_read()
331 static int ecryptfs_lookup_interpose(struct dentry *dentry,  in ecryptfs_lookup_interpose()  argument
332 				     struct dentry *lower_dentry,  in ecryptfs_lookup_interpose()
349 	lower_mnt = mntget(ecryptfs_dentry_to_lower_mnt(dentry->d_parent));  in ecryptfs_lookup_interpose()
353 	ecryptfs_set_dentry_private(dentry, dentry_info);  in ecryptfs_lookup_interpose()
355 	dentry_info->lower_path.dentry = lower_dentry;  in ecryptfs_lookup_interpose()
359 		d_add(dentry, NULL);  in ecryptfs_lookup_interpose()
369 		rc = ecryptfs_i_size_read(dentry, inode);  in ecryptfs_lookup_interpose()
378 	d_add(dentry, inode);  in ecryptfs_lookup_interpose()
392 static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,  in ecryptfs_lookup()
393 				      struct dentry *ecryptfs_dentry,  in ecryptfs_lookup()
399 	struct dentry *lower_dir_dentry, *lower_dentry;  in ecryptfs_lookup()
452 static int ecryptfs_link(struct dentry *old_dentry, struct inode *dir,  in ecryptfs_link()
453 			 struct dentry *new_dentry)  in ecryptfs_link()
455 	struct dentry *lower_old_dentry;  in ecryptfs_link()
456 	struct dentry *lower_new_dentry;  in ecryptfs_link()
457 	struct dentry *lower_dir_dentry;  in ecryptfs_link()
486 static int ecryptfs_unlink(struct inode *dir, struct dentry *dentry)  in ecryptfs_unlink()  argument
488 	return ecryptfs_do_unlink(dir, dentry, d_inode(dentry));  in ecryptfs_unlink()
491 static int ecryptfs_symlink(struct inode *dir, struct dentry *dentry,  in ecryptfs_symlink()  argument
495 	struct dentry *lower_dentry;  in ecryptfs_symlink()
496 	struct dentry *lower_dir_dentry;  in ecryptfs_symlink()
501 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_symlink()
518 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_symlink()
526 	if (d_really_is_negative(dentry))  in ecryptfs_symlink()
527 		d_drop(dentry);  in ecryptfs_symlink()
531 static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)  in ecryptfs_mkdir()  argument
534 	struct dentry *lower_dentry;  in ecryptfs_mkdir()
535 	struct dentry *lower_dir_dentry;  in ecryptfs_mkdir()
537 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_mkdir()
542 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mkdir()
550 	if (d_really_is_negative(dentry))  in ecryptfs_mkdir()
551 		d_drop(dentry);  in ecryptfs_mkdir()
555 static int ecryptfs_rmdir(struct inode *dir, struct dentry *dentry)  in ecryptfs_rmdir()  argument
557 	struct dentry *lower_dentry;  in ecryptfs_rmdir()
558 	struct dentry *lower_dir_dentry;  in ecryptfs_rmdir()
561 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_rmdir()
562 	dget(dentry);  in ecryptfs_rmdir()
567 	if (!rc && d_really_is_positive(dentry))  in ecryptfs_rmdir()
568 		clear_nlink(d_inode(dentry));  in ecryptfs_rmdir()
573 		d_drop(dentry);  in ecryptfs_rmdir()
574 	dput(dentry);  in ecryptfs_rmdir()
579 ecryptfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)  in ecryptfs_mknod()  argument
582 	struct dentry *lower_dentry;  in ecryptfs_mknod()
583 	struct dentry *lower_dir_dentry;  in ecryptfs_mknod()
585 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_mknod()
590 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mknod()
597 	if (d_really_is_negative(dentry))  in ecryptfs_mknod()
598 		d_drop(dentry);  in ecryptfs_mknod()
603 ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,  in ecryptfs_rename()
604 		struct inode *new_dir, struct dentry *new_dentry)  in ecryptfs_rename()
607 	struct dentry *lower_old_dentry;  in ecryptfs_rename()
608 	struct dentry *lower_new_dentry;  in ecryptfs_rename()
609 	struct dentry *lower_old_dir_dentry;  in ecryptfs_rename()
610 	struct dentry *lower_new_dir_dentry;  in ecryptfs_rename()
611 	struct dentry *trap = NULL;  in ecryptfs_rename()
652 static char *ecryptfs_readlink_lower(struct dentry *dentry, size_t *bufsiz)  in ecryptfs_readlink_lower()  argument
654 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_readlink_lower()
671 	rc = ecryptfs_decode_and_decrypt_filename(&buf, bufsiz, dentry->d_sb,  in ecryptfs_readlink_lower()
678 static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd)  in ecryptfs_follow_link()  argument
681 	char *buf = ecryptfs_readlink_lower(dentry, &len);  in ecryptfs_follow_link()
684 	fsstack_copy_attr_atime(d_inode(dentry),  in ecryptfs_follow_link()
685 				d_inode(ecryptfs_dentry_to_lower(dentry)));  in ecryptfs_follow_link()
737 static int truncate_upper(struct dentry *dentry, struct iattr *ia,  in truncate_upper()  argument
741 	struct inode *inode = d_inode(dentry);  in truncate_upper()
751 	rc = ecryptfs_get_lower_file(dentry, inode);  in truncate_upper()
754 	crypt_stat = &ecryptfs_inode_to_private(d_inode(dentry))->crypt_stat;  in truncate_upper()
855 int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)  in ecryptfs_truncate()  argument
861 	rc = ecryptfs_inode_newsize_ok(d_inode(dentry), new_length);  in ecryptfs_truncate()
865 	rc = truncate_upper(dentry, &ia, &lower_ia);  in ecryptfs_truncate()
867 		struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_truncate()
894 static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)  in ecryptfs_setattr()  argument
897 	struct dentry *lower_dentry;  in ecryptfs_setattr()
903 	crypt_stat = &ecryptfs_inode_to_private(d_inode(dentry))->crypt_stat;  in ecryptfs_setattr()
906 	inode = d_inode(dentry);  in ecryptfs_setattr()
908 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setattr()
910 	if (d_is_dir(dentry))  in ecryptfs_setattr()
912 	else if (d_is_reg(dentry)  in ecryptfs_setattr()
918 			dentry->d_sb)->mount_crypt_stat;  in ecryptfs_setattr()
919 		rc = ecryptfs_get_lower_file(dentry, inode);  in ecryptfs_setattr()
924 		rc = ecryptfs_read_metadata(dentry);  in ecryptfs_setattr()
958 		rc = truncate_upper(dentry, ia, &lower_ia);  in ecryptfs_setattr()
978 static int ecryptfs_getattr_link(struct vfsmount *mnt, struct dentry *dentry,  in ecryptfs_getattr_link()  argument
985 						dentry->d_sb)->mount_crypt_stat;  in ecryptfs_getattr_link()
986 	generic_fillattr(d_inode(dentry), stat);  in ecryptfs_getattr_link()
991 		target = ecryptfs_readlink_lower(dentry, &targetsiz);  in ecryptfs_getattr_link()
1002 static int ecryptfs_getattr(struct vfsmount *mnt, struct dentry *dentry,  in ecryptfs_getattr()  argument
1008 	rc = vfs_getattr(ecryptfs_dentry_to_lower_path(dentry), &lower_stat);  in ecryptfs_getattr()
1010 		fsstack_copy_attr_all(d_inode(dentry),  in ecryptfs_getattr()
1011 				      ecryptfs_inode_to_lower(d_inode(dentry)));  in ecryptfs_getattr()
1012 		generic_fillattr(d_inode(dentry), stat);  in ecryptfs_getattr()
1019 ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value,  in ecryptfs_setxattr()  argument
1023 	struct dentry *lower_dentry;  in ecryptfs_setxattr()
1025 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setxattr()
1032 	if (!rc && d_really_is_positive(dentry))  in ecryptfs_setxattr()
1033 		fsstack_copy_attr_all(d_inode(dentry), d_inode(lower_dentry));  in ecryptfs_setxattr()
1039 ecryptfs_getxattr_lower(struct dentry *lower_dentry, const char *name,  in ecryptfs_getxattr_lower()
1057 ecryptfs_getxattr(struct dentry *dentry, const char *name, void *value,  in ecryptfs_getxattr()  argument
1060 	return ecryptfs_getxattr_lower(ecryptfs_dentry_to_lower(dentry), name,  in ecryptfs_getxattr()
1065 ecryptfs_listxattr(struct dentry *dentry, char *list, size_t size)  in ecryptfs_listxattr()  argument
1068 	struct dentry *lower_dentry;  in ecryptfs_listxattr()
1070 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_listxattr()
1082 static int ecryptfs_removexattr(struct dentry *dentry, const char *name)  in ecryptfs_removexattr()  argument
1085 	struct dentry *lower_dentry;  in ecryptfs_removexattr()
1087 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_removexattr()