On Wed, Oct 24, 2018 at 4:02 PM Theodore Y. Ts'o <tytso@xxxxxxx> wrote: > > On Tue, Oct 23, 2018 at 09:19:53PM +0100, Phillip Potter wrote: > > diff --git a/include/linux/file_type.h b/include/linux/file_type.h > > Shouldn't this be in include/uapi/linux/fs_types.h? > IDGI. Why do we want this file in uapi? The DT_ constants are already defined by glibc dirent.h and the FT_ constants and macros we don't want to expose to uapi at all. Right? Maybe all we need is a comment above DT_ constants that those are defined by POSIX and in glibc dirent.h? > One of things which must be made crystal clear is these definitions > MUST NOT ever change. It would break the Userspace ABI, and would > break file systems on-disk format. > > It might also be useful to be clear *why* we are making this change in > the first place. Code refactorization is good from a code maintenance > perspective (either to fix bugs, although this code is pretty > trivial), Very trivial code that has had an out of bounds access bug for two decades and bug was duplicated to 7 filesystems. IMO, fixing the bug in one place instead of 7 is a good enough reason for re-factoring. Thanks, Amir.