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List:       fedora-devel-list
Subject:    Re: btrfs hash algorithm (should xxhash be the default?)
From:       Matthew Miller <mattdm () fedoraproject ! org>
Date:       2021-02-01 18:52:43
Message-ID: 20210201185243.GA30521 () mattdm ! org
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On Mon, Feb 01, 2021 at 04:06:37PM +0100, Kevin Kofler via devel wrote:
> I guess the real question is: does it increase the required disk space or 
> does it only fill up bits that would otherwise be padding bits?

Josef tells me that 32 bytes are reserved _anyway_, with 4 used for crc32c
or 8 used for xxhash. So even using the 256-bit hashes wouldn't change the
size on disk; they'd just use the already-allocated space.

-- 
Matthew Miller
<mattdm@fedoraproject.org>
Fedora Project Leader
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