[dm-devel] [PATCH] loop: don't print warnings if the underlying filesystem doesn't support discard

[Christoph Hellwig]

On Mon, Oct 04, 2021 at 09:01:33AM -0400, Mikulas Patocka wrote:
> Do you want this patch?

Yes, this looks like what I want.  Minor nitpicks below:

> +	.fallocate_flags = BLKDEV_FALLOC_FL_SUPPORTED,

I'd probably call this fallocate_supported_flags.

> +	.fallocate_flags = FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE | FALLOC_FL_ZERO_RANGE,

Please avoid over 80 lines for a plain list of flags.