Re: [PATCH v6 1/2] tmpfs: Per-superblock i_ino support

[Matthew Wilcox]

On Mon, Jul 13, 2020 at 05:15:39PM +0100, Chris Down wrote:
> +#define SHMEM_INO_BATCH 1024U
...
> +		if (unlikely((ino & ~SHMEM_INO_BATCH) == 0)) {

I don't think that works.  I think you meant to write ~(SHMEM_INO_BATCH - 1).
Or just ino % SHMEM_INO_BATCH which works even for non-power-of-two.