| To: | "Darrick J. Wong" <darrick.wong@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH 34/71] xfs: support bmapping delalloc extents in the CoW fork |
| From: | Christoph Hellwig <hch@xxxxxxxxxxxxx> |
| Date: | Sun, 11 Sep 2016 05:59:31 -0700 |
| Cc: | Christoph Hellwig <hch@xxxxxxxxxxxxx>, david@xxxxxxxxxxxxx, linux-xfs@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx |
| Delivered-to: | xfs@xxxxxxxxxxx |
| In-reply-to: | <20160906163413.GC16696@xxxxxxxxxxxxxxxx> |
| References: | <147216791538.867.12413509832420924168.stgit@xxxxxxxxxxxxxxxx> <147216814006.867.6404376654574855233.stgit@xxxxxxxxxxxxxxxx> <20160906152553.GA9760@xxxxxxxxxxxxx> <20160906163413.GC16696@xxxxxxxxxxxxxxxx> |
| User-agent: | Mutt/1.6.1 (2016-04-27) |
On Tue, Sep 06, 2016 at 09:34:13AM -0700, Darrick J. Wong wrote: > While we're combining patches, I think it makes sense to modify > _iomap_write_allocate so that when it's converting a data fork > delalloc reservation into a real extent that it should look for an > adjacent (file offset-wise) real extent in the CoW fork and feed that > to the allocator in the hopes of allocating all the blocks in the same > part of the disk. Or better yet as one big(ger) extent record. That would be nice. Not sure it's worth doing that for the initial submission, though. |
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