Btrfs: heuristic: add detection of repeated data patterns

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Walk over data sample and use memcmp to detect repeated patterns, like
zeros, but a bit more general.

Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ minor coding style fixes ]
Signed-off-by: David Sterba <dsterba@suse.com>

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Timofey Titovets 2017-09-28 17:33:39 +03:00 • committed by David Sterba

parent a440d48c7f

commit 1fe4f6fa5a

1 changed files with 14 additions and 1 deletions

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fs/btrfs/compression.c

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