Btrfs: heuristic: implement sampling logic

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Copy sample data from the input data range to sample buffer then
calculate byte value count for that sample into bucket.

Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>
[ minor comment updates ]
Signed-off-by: David Sterba <dsterba@suse.com>

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Timofey Titovets 2017-09-28 17:33:38 +03:00 • committed by David Sterba

parent 17b5a6c17e

commit a440d48c7f

1 changed files with 62 additions and 9 deletions

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fs/btrfs/compression.c

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