btrfs: add a helper to iterate through a btrfs_bio with sector sized chunks

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Add a helper that works similar to __bio_for_each_segment, but instead of
iterating over PAGE_SIZE chunks it iterates over each sector.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
[hch: split from a larger patch, and iterate over the offset instead of
      the offset bits]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
[ add parameter comments ]
Signed-off-by: David Sterba <dsterba@suse.com>

...

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Qu Wenruo 2022-05-22 13:47:53 +02:00 • committed by David Sterba

parent a89ce08ce6

commit 261d812b04

1 changed files with 16 additions and 0 deletions

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fs/btrfs/volumes.h

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