> +#define IOCB_HAS_META (1 << 22) .. METADATA? Also the fs infrastructure should probably be split from io_uring. > +/* > + * flags for integrity meta > + */ > +#define INTEGRITY_CHK_GUARD (1U << 0) /* enforce guard check */ > +#define INTEGRITY_CHK_APPTAG (1U << 1) /* enforce app tag check */ > +#define INTEGRITY_CHK_REFTAG (1U << 2) /* enforce ref tag check */ This gets used all over the block layer. I don't think it should be in an io_uring specific header even if that is the initial user. We might also gain a bit more flexibility by splitting the userspace API from the in-kernel flags even if there is no strong needs for that yet.
