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 Thu, Oct 17, 2024 at 09:44:39AM -0600, Keith Busch wrote: > I'm replying just to make sure I understand what you're saying: > > If we send per IO hints on a file, we could have interleaved hot and > cold pages at various offsets of that file, so the filesystem needs an > efficient way to allocate extents and track these so that it doesn't > interleave these in LBA space. I think that makes sense. That's a little simplified, but yes. > We can add a fop_flags and block/fops.c can be the first one to turn it > on since that LBA access is entirely user driven. Yes, that's my main request on the per-I/O hint interface. Now we just need to not dumb down the bio level interface to five temeperature level and just expose the different write streams and we can all have a happy Kumbaya. -- 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>