Messages in this thread | | | From | David Howells <> | Subject | Re: Problems with determining data presence by examining extents? | Date | Fri, 17 Jan 2020 16:43:38 +0000 |
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Christoph Hellwig <hch@lst.de> wrote:
> File systems usually pad zeroes where they have to, typically for > sub-blocksize writes. Disabling this would break data integrity.
I understand that. I can, however, round up the netfs I/O granule size and alignment to a multiple of the cachefile I/O block size. Also, I'm doing DIO, so I have to use block size multiples.
But if the filesystem can avoid bridging large, appropriately sized and aligned blocks, then I can use it.
David
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