38 static struct dentry *lock_parent(struct dentry *dentry)  in lock_parent()  argument
40 	struct dentry *dir;  in lock_parent()
42 	dir = dget_parent(dentry);  in lock_parent()
47 static void unlock_dir(struct dentry *dir)  in unlock_dir()
129 static int ecryptfs_interpose(struct dentry *lower_dentry,  in ecryptfs_interpose()
130 			      struct dentry *dentry, struct super_block *sb)  in ecryptfs_interpose()  argument
136 	d_instantiate(dentry, inode);  in ecryptfs_interpose()
141 static int ecryptfs_do_unlink(struct inode *dir, struct dentry *dentry,  in ecryptfs_do_unlink()  argument
144 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_do_unlink()
146 	struct dentry *lower_dir_dentry;  in ecryptfs_do_unlink()
159 	d_drop(dentry);  in ecryptfs_do_unlink()
180 		   struct dentry *ecryptfs_dentry, umode_t mode)  in ecryptfs_do_create()
183 	struct dentry *lower_dentry;  in ecryptfs_do_create()
184 	struct dentry *lower_dir_dentry;  in ecryptfs_do_create()
217 int ecryptfs_initialize_file(struct dentry *ecryptfs_dentry,  in ecryptfs_initialize_file()
263 ecryptfs_create(struct inode *directory_inode, struct dentry *ecryptfs_dentry,  in ecryptfs_create()
291 static int ecryptfs_i_size_read(struct dentry *dentry, struct inode *inode)  in ecryptfs_i_size_read()  argument
296 	rc = ecryptfs_get_lower_file(dentry, inode);  in ecryptfs_i_size_read()
301 			dentry, rc);  in ecryptfs_i_size_read()
313 		rc = ecryptfs_read_and_validate_xattr_region(dentry, inode);  in ecryptfs_i_size_read()
325 static struct dentry *ecryptfs_lookup_interpose(struct dentry *dentry,  in ecryptfs_lookup_interpose()  argument
326 				     struct dentry *lower_dentry)  in ecryptfs_lookup_interpose()
339 	lower_mnt = mntget(ecryptfs_dentry_to_lower_mnt(dentry->d_parent));  in ecryptfs_lookup_interpose()
340 	fsstack_copy_attr_atime(d_inode(dentry->d_parent),  in ecryptfs_lookup_interpose()
344 	ecryptfs_set_dentry_private(dentry, dentry_info);  in ecryptfs_lookup_interpose()
346 	dentry_info->lower_path.dentry = lower_dentry;  in ecryptfs_lookup_interpose()
350 		d_add(dentry, NULL);  in ecryptfs_lookup_interpose()
353 	inode = __ecryptfs_get_inode(lower_inode, dentry->d_sb);  in ecryptfs_lookup_interpose()
360 		rc = ecryptfs_i_size_read(dentry, inode);  in ecryptfs_lookup_interpose()
369 	return d_splice_alias(inode, dentry);  in ecryptfs_lookup_interpose()
381 static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,  in ecryptfs_lookup()
382 				      struct dentry *ecryptfs_dentry,  in ecryptfs_lookup()
387 	struct dentry *lower_dir_dentry, *lower_dentry;  in ecryptfs_lookup()
390 	struct dentry *res;  in ecryptfs_lookup()
423 static int ecryptfs_link(struct dentry *old_dentry, struct inode *dir,  in ecryptfs_link()
424 			 struct dentry *new_dentry)  in ecryptfs_link()
426 	struct dentry *lower_old_dentry;  in ecryptfs_link()
427 	struct dentry *lower_new_dentry;  in ecryptfs_link()
428 	struct dentry *lower_dir_dentry;  in ecryptfs_link()
457 static int ecryptfs_unlink(struct inode *dir, struct dentry *dentry)  in ecryptfs_unlink()  argument
459 	return ecryptfs_do_unlink(dir, dentry, d_inode(dentry));  in ecryptfs_unlink()
462 static int ecryptfs_symlink(struct inode *dir, struct dentry *dentry,  in ecryptfs_symlink()  argument
466 	struct dentry *lower_dentry;  in ecryptfs_symlink()
467 	struct dentry *lower_dir_dentry;  in ecryptfs_symlink()
472 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_symlink()
488 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_symlink()
496 	if (d_really_is_negative(dentry))  in ecryptfs_symlink()
497 		d_drop(dentry);  in ecryptfs_symlink()
501 static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)  in ecryptfs_mkdir()  argument
504 	struct dentry *lower_dentry;  in ecryptfs_mkdir()
505 	struct dentry *lower_dir_dentry;  in ecryptfs_mkdir()
507 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_mkdir()
512 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mkdir()
520 	if (d_really_is_negative(dentry))  in ecryptfs_mkdir()
521 		d_drop(dentry);  in ecryptfs_mkdir()
525 static int ecryptfs_rmdir(struct inode *dir, struct dentry *dentry)  in ecryptfs_rmdir()  argument
527 	struct dentry *lower_dentry;  in ecryptfs_rmdir()
528 	struct dentry *lower_dir_dentry;  in ecryptfs_rmdir()
531 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_rmdir()
532 	dget(dentry);  in ecryptfs_rmdir()
537 	if (!rc && d_really_is_positive(dentry))  in ecryptfs_rmdir()
538 		clear_nlink(d_inode(dentry));  in ecryptfs_rmdir()
543 		d_drop(dentry);  in ecryptfs_rmdir()
544 	dput(dentry);  in ecryptfs_rmdir()
549 ecryptfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)  in ecryptfs_mknod()  argument
552 	struct dentry *lower_dentry;  in ecryptfs_mknod()
553 	struct dentry *lower_dir_dentry;  in ecryptfs_mknod()
555 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_mknod()
560 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mknod()
567 	if (d_really_is_negative(dentry))  in ecryptfs_mknod()
568 		d_drop(dentry);  in ecryptfs_mknod()
573 ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,  in ecryptfs_rename()
574 		struct inode *new_dir, struct dentry *new_dentry,  in ecryptfs_rename()
578 	struct dentry *lower_old_dentry;  in ecryptfs_rename()
579 	struct dentry *lower_new_dentry;  in ecryptfs_rename()
580 	struct dentry *lower_old_dir_dentry;  in ecryptfs_rename()
581 	struct dentry *lower_new_dir_dentry;  in ecryptfs_rename()
582 	struct dentry *trap = NULL;  in ecryptfs_rename()
626 static char *ecryptfs_readlink_lower(struct dentry *dentry, size_t *bufsiz)  in ecryptfs_readlink_lower()  argument
629 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_readlink_lower()
638 	rc = ecryptfs_decode_and_decrypt_filename(&buf, bufsiz, dentry->d_sb,  in ecryptfs_readlink_lower()
647 static const char *ecryptfs_get_link(struct dentry *dentry,  in ecryptfs_get_link()  argument
654 	if (!dentry)  in ecryptfs_get_link()
657 	buf = ecryptfs_readlink_lower(dentry, &len);  in ecryptfs_get_link()
660 	fsstack_copy_attr_atime(d_inode(dentry),  in ecryptfs_get_link()
661 				d_inode(ecryptfs_dentry_to_lower(dentry)));  in ecryptfs_get_link()
712 static int truncate_upper(struct dentry *dentry, struct iattr *ia,  in truncate_upper()  argument
716 	struct inode *inode = d_inode(dentry);  in truncate_upper()
726 	rc = ecryptfs_get_lower_file(dentry, inode);  in truncate_upper()
729 	crypt_stat = &ecryptfs_inode_to_private(d_inode(dentry))->crypt_stat;  in truncate_upper()
830 int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)  in ecryptfs_truncate()  argument
836 	rc = ecryptfs_inode_newsize_ok(d_inode(dentry), new_length);  in ecryptfs_truncate()
840 	rc = truncate_upper(dentry, &ia, &lower_ia);  in ecryptfs_truncate()
842 		struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_truncate()
869 static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)  in ecryptfs_setattr()  argument
872 	struct dentry *lower_dentry;  in ecryptfs_setattr()
878 	crypt_stat = &ecryptfs_inode_to_private(d_inode(dentry))->crypt_stat;  in ecryptfs_setattr()
884 	inode = d_inode(dentry);  in ecryptfs_setattr()
886 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setattr()
888 	if (d_is_dir(dentry))  in ecryptfs_setattr()
890 	else if (d_is_reg(dentry)  in ecryptfs_setattr()
896 			dentry->d_sb)->mount_crypt_stat;  in ecryptfs_setattr()
897 		rc = ecryptfs_get_lower_file(dentry, inode);  in ecryptfs_setattr()
902 		rc = ecryptfs_read_metadata(dentry);  in ecryptfs_setattr()
923 	rc = setattr_prepare(dentry, ia);  in ecryptfs_setattr()
936 		rc = truncate_upper(dentry, ia, &lower_ia);  in ecryptfs_setattr()
959 	struct dentry *dentry = path->dentry;  in ecryptfs_getattr_link()  local
964 						dentry->d_sb)->mount_crypt_stat;  in ecryptfs_getattr_link()
965 	generic_fillattr(d_inode(dentry), stat);  in ecryptfs_getattr_link()
970 		target = ecryptfs_readlink_lower(dentry, &targetsiz);  in ecryptfs_getattr_link()
984 	struct dentry *dentry = path->dentry;  in ecryptfs_getattr()  local
988 	rc = vfs_getattr(ecryptfs_dentry_to_lower_path(dentry), &lower_stat,  in ecryptfs_getattr()
991 		fsstack_copy_attr_all(d_inode(dentry),  in ecryptfs_getattr()
992 				      ecryptfs_inode_to_lower(d_inode(dentry)));  in ecryptfs_getattr()
993 		generic_fillattr(d_inode(dentry), stat);  in ecryptfs_getattr()
1000 ecryptfs_setxattr(struct dentry *dentry, struct inode *inode,  in ecryptfs_setxattr()  argument
1005 	struct dentry *lower_dentry;  in ecryptfs_setxattr()
1007 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setxattr()
1020 ecryptfs_getxattr_lower(struct dentry *lower_dentry, struct inode *lower_inode,  in ecryptfs_getxattr_lower()
1037 ecryptfs_getxattr(struct dentry *dentry, struct inode *inode,  in ecryptfs_getxattr()  argument
1040 	return ecryptfs_getxattr_lower(ecryptfs_dentry_to_lower(dentry),  in ecryptfs_getxattr()
1046 ecryptfs_listxattr(struct dentry *dentry, char *list, size_t size)  in ecryptfs_listxattr()  argument
1049 	struct dentry *lower_dentry;  in ecryptfs_listxattr()
1051 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_listxattr()
1063 static int ecryptfs_removexattr(struct dentry *dentry, struct inode *inode,  in ecryptfs_removexattr()  argument
1067 	struct dentry *lower_dentry;  in ecryptfs_removexattr()
1070 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_removexattr()
1114 			      struct dentry *dentry, struct inode *inode,  in ecryptfs_xattr_get()  argument
1117 	return ecryptfs_getxattr(dentry, inode, name, buffer, size);  in ecryptfs_xattr_get()
1121 			      struct dentry *dentry, struct inode *inode,  in ecryptfs_xattr_set()  argument
1126 		return ecryptfs_setxattr(dentry, inode, name, value, size, flags);  in ecryptfs_xattr_set()
1129 		return ecryptfs_removexattr(dentry, inode, name);  in ecryptfs_xattr_set()