btrfs: Implement find_first_clear_extent_bit

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This function is very similar to find_first_extent_bit except that it
locates the first contiguous span of space which does not have bits set.
It's intended use is in the freespace trimming code.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Nikolay Borisov 2019-03-27 14:24:17 +02:00 • committed by David Sterba

parent 8811133d8a

commit 45bfcfc168

2 changed files with 75 additions and 0 deletions

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73

fs/btrfs/extent_io.c

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2

fs/btrfs/extent_io.h

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