[PATCH 2/2] block: remove the per-bio/request write hint

[Christoph Hellwig]

On Sun, Mar 06, 2022 at 10:11:46AM -0700, Jens Axboe wrote:
> Yes, I think we should kill it. If we retain the inode hint, the f2fs
> doesn't need a any changes. And it should be safe to make the per-file
> fcntl hints return EINVAL, which they would on older kernels anyway.
> Untested, but something like the below.

I've sent this off to the testing farm this morning, but EINVAL might
be even better:

http://git.infradead.org/users/hch/block.git/shortlog/refs/heads/more-hint-removal