Re: [PATCH 2/3] uapi: get rid of STATX_ALL

On Oct 18, 2018, at 7:15 AM, Florian Weimer [off-list ref] wrote:

* Miklos Szeredi:

quoted

#define STATX__RESERVED		0x80000000U	/* Reserved for future struct statx expansion */

What about this?  Isn't it similar to STATX_ALL in the sense that we
don't know yet what it will mean?

No, this means that this last bit will be used for increasing the size of the
stx_mask field at some point in the future.  IMHO, this is present as a reminder
to any developer who is adding fields in the future not to use the last flag.

Cheers, Andreas