On Tue, Sep 24, 2024 at 03:04:34PM -0700, Eric Biggers wrote: > What about a block device ioctl, as was previously proposed > (https://lore.kernel.org/linux-block/1658316391-13472-1-git-send-email-israelr@xxxxxxxxxx/T/#u)? No. This is a file system layer policy and needs to sit entirely above the block layer instead of breaking abstraction boundaries.