Btrfs: reuse cmp workspace in EXTENT_SAME ioctl

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We support big dedup requests by splitting range to smaller parts, and
call dedupe logic on each of them.

Instead of repeated allocation and deallocation, allocate once at the
beginning and reuse in the iteration.

Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Timofey Titovets 2018-05-02 08:15:38 +03:00 • committed by David Sterba

parent b672876826

commit 67b07bd4be

1 changed files with 40 additions and 39 deletions

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fs/btrfs/ioctl.c

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