34 			     const struct inode *inode)  in setattr_should_drop_sgid()  argument
36 	umode_t mode = inode->i_mode;  in setattr_should_drop_sgid()
42 	if (!in_group_or_capable(idmap, inode, i_gid_into_vfsgid(idmap, inode)))  in setattr_should_drop_sgid()
64 				struct inode *inode)  in setattr_should_drop_suidgid()  argument
66 	umode_t mode = inode->i_mode;  in setattr_should_drop_suidgid()
73 	kill |= setattr_should_drop_sgid(idmap, inode);  in setattr_should_drop_suidgid()
95 		     const struct inode *inode, vfsuid_t ia_vfsuid)  in chown_ok()  argument
97 	vfsuid_t vfsuid = i_uid_into_vfsuid(idmap, inode);  in chown_ok()
101 	if (capable_wrt_inode_uidgid(idmap, inode, CAP_CHOWN))  in chown_ok()
104 	    ns_capable(inode->i_sb->s_user_ns, CAP_CHOWN))  in chown_ok()
122 		     const struct inode *inode, vfsgid_t ia_vfsgid)  in chgrp_ok()  argument
124 	vfsgid_t vfsgid = i_gid_into_vfsgid(idmap, inode);  in chgrp_ok()
125 	vfsuid_t vfsuid = i_uid_into_vfsuid(idmap, inode);  in chgrp_ok()
132 	if (capable_wrt_inode_uidgid(idmap, inode, CAP_CHOWN))  in chgrp_ok()
135 	    ns_capable(inode->i_sb->s_user_ns, CAP_CHOWN))  in chgrp_ok()
164 	struct inode *inode = d_inode(dentry);  in setattr_prepare()  local
179 		if (IS_VERITY(inode))  in setattr_prepare()
182 		error = inode_newsize_ok(inode, attr->ia_size);  in setattr_prepare()
193 	    !chown_ok(idmap, inode, attr->ia_vfsuid))  in setattr_prepare()
198 	    !chgrp_ok(idmap, inode, attr->ia_vfsgid))  in setattr_prepare()
205 		if (!inode_owner_or_capable(idmap, inode))  in setattr_prepare()
211 			vfsgid = i_gid_into_vfsgid(idmap, inode);  in setattr_prepare()
214 		if (!in_group_or_capable(idmap, inode, vfsgid))  in setattr_prepare()
220 		if (!inode_owner_or_capable(idmap, inode))  in setattr_prepare()
254 int inode_newsize_ok(const struct inode *inode, loff_t offset)  in inode_newsize_ok()  argument
258 	if (inode->i_size < offset) {  in inode_newsize_ok()
264 		if (offset > inode->i_sb->s_maxbytes)  in inode_newsize_ok()
272 		if (IS_SWAPFILE(inode))  in inode_newsize_ok()
294 static void setattr_copy_mgtime(struct inode *inode, const struct iattr *attr)  in setattr_copy_mgtime()  argument
300 		now = inode_set_ctime_deleg(inode, attr->ia_ctime);  in setattr_copy_mgtime()
302 		now = inode_set_ctime_current(inode);  in setattr_copy_mgtime()
304 		now = current_time(inode);  in setattr_copy_mgtime()
307 		inode_set_atime_to_ts(inode, attr->ia_atime);  in setattr_copy_mgtime()
309 		inode_set_atime_to_ts(inode, now);  in setattr_copy_mgtime()
312 		inode_set_mtime_to_ts(inode, attr->ia_mtime);  in setattr_copy_mgtime()
314 		inode_set_mtime_to_ts(inode, now);  in setattr_copy_mgtime()
342 void setattr_copy(struct mnt_idmap *idmap, struct inode *inode,  in setattr_copy()  argument
347 	i_uid_update(idmap, attr, inode);  in setattr_copy()
348 	i_gid_update(idmap, attr, inode);  in setattr_copy()
351 		if (!in_group_or_capable(idmap, inode,  in setattr_copy()
352 					 i_gid_into_vfsgid(idmap, inode)))  in setattr_copy()
354 		inode->i_mode = mode;  in setattr_copy()
357 	if (is_mgtime(inode))  in setattr_copy()
358 		return setattr_copy_mgtime(inode, attr);  in setattr_copy()
361 		inode_set_atime_to_ts(inode, attr->ia_atime);  in setattr_copy()
363 		inode_set_mtime_to_ts(inode, attr->ia_mtime);  in setattr_copy()
366 		inode_set_ctime_deleg(inode, attr->ia_ctime);  in setattr_copy()
368 		inode_set_ctime_to_ts(inode, attr->ia_ctime);  in setattr_copy()
372 int may_setattr(struct mnt_idmap *idmap, struct inode *inode,  in may_setattr()  argument
378 		if (IS_IMMUTABLE(inode) || IS_APPEND(inode))  in may_setattr()
387 		if (IS_IMMUTABLE(inode))  in may_setattr()
390 		if (!inode_owner_or_capable(idmap, inode)) {  in may_setattr()
391 			error = inode_permission(idmap, inode, MAY_WRITE);  in may_setattr()
430 	struct inode *inode = dentry->d_inode;  in notify_change()  local
431 	umode_t mode = inode->i_mode;  in notify_change()
436 	WARN_ON_ONCE(!inode_is_locked(inode));  in notify_change()
438 	error = may_setattr(idmap, inode, ia_valid);  in notify_change()
457 		if (S_ISLNK(inode->i_mode))  in notify_change()
462 			inode->i_flags &= ~S_NOSEC;  in notify_change()
465 	now = current_time(inode);  in notify_change()
468 		attr->ia_atime = timestamp_truncate(attr->ia_atime, inode);  in notify_change()
472 		attr->ia_ctime = timestamp_truncate(attr->ia_ctime, inode);  in notify_change()
476 		attr->ia_mtime = timestamp_truncate(attr->ia_mtime, inode);  in notify_change()
502 			attr->ia_mode = (inode->i_mode & ~S_ISUID);  in notify_change()
509 				attr->ia_mode = inode->i_mode;  in notify_change()
522 	    !vfsuid_has_fsmapping(idmap, inode->i_sb->s_user_ns,  in notify_change()
526 	    !vfsgid_has_fsmapping(idmap, inode->i_sb->s_user_ns,  in notify_change()
534 	    !vfsuid_valid(i_uid_into_vfsuid(idmap, inode)))  in notify_change()
537 	    !vfsgid_valid(i_gid_into_vfsgid(idmap, inode)))  in notify_change()
550 		error = try_break_deleg(inode, 0, delegated_inode);  in notify_change()
555 	if (inode->i_op->setattr)  in notify_change()
556 		error = inode->i_op->setattr(idmap, dentry, attr);  in notify_change()