btrfs: Document btrfs_csum_one_bio
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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@ -413,6 +413,16 @@ fail:
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return ret;
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}
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/*
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* btrfs_csum_one_bio - Calculates checksums of the data contained inside a bio
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* @inode: Owner of the data inside the bio
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* @bio: Contains the data to be checksummed
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* @file_start: offset in file this bio begins to describe
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* @contig: Boolean. If true/1 means all bio vecs in this bio are
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* contiguous and they begin at @file_start in the file. False/0
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* means this bio can contains potentially discontigous bio vecs
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* so the logical offset of each should be calculated separately.
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*/
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blk_status_t btrfs_csum_one_bio(struct inode *inode, struct bio *bio,
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u64 file_start, int contig)
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{
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