Re: [RFC][PATCH] Make io_submit non-blocking

[Christoph Hellwig]

On Wed, Jul 25, 2012 at 08:31:10AM +1000, Dave Chinner wrote:
> FWIW, if you are going to change generic code, you need to present
> results for other filesystems as well (xfs, btrfs are typical), as
> they may not have the same problems as ext4 or react the same way to
> your change. The result might simply be "it is 20% slower"....

And most importantly block devices, as they are one of the biggest
use cases of AIO.  With an almost no-op get_blocks callback I can't
see how this change would provide any gain there.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/