Re: [PATCH v7 0/3] FDP and per-io hints
Christoph Hellwig <[email protected]>
| Newsgroups | gmane.linux.kernel.aio.general,gmane.linux.file-systems,gmane.linux.kernel.io-uring,gmane.linux.block |
|---|---|
| Message-ID | <[email protected]> |
On Wed, Oct 02, 2024 at 09:33:16AM -0600, Keith Busch wrote: > You remember right. I also explained the use cases for per-io hints are > to replace current passthrough users with generic read/write paths that > have all the memory guard rails, read/write stats, and other features > that you don't get with passthrough. This just lets you accomplish the > same placement hints with the nvme raw block device that you get with > the nvme char device. Yes, and as I said before we need an opt-in from the file_ops, because file systems can't support this. And I'm speaking that from a position of working on a file system that made the existing non-idea hints work (to all fairness Hans did the hard work, but I was part of it). -- To unsubscribe, send a message with 'unsubscribe linux-aio' in the body to [email protected]. For more info on Linux AIO, see: http://www.kvack.org/aio/ Don't email: <a href=mailto:"[email protected]">[email protected]</a>