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btrfs: open code btrfs_csum_ptr
Remove btrfs_csum_ptr() and fold it into it's only caller. Reviewed-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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@ -3367,13 +3367,6 @@ int btrfs_check_sector_csum(struct btrfs_fs_info *fs_info, struct page *page,
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return 0;
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}
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static u8 *btrfs_csum_ptr(const struct btrfs_fs_info *fs_info, u8 *csums, u64 offset)
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{
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u64 offset_in_sectors = offset >> fs_info->sectorsize_bits;
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return csums + offset_in_sectors * fs_info->csum_size;
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}
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/*
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* Verify the checksum of a single data sector.
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*
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@ -3411,7 +3404,8 @@ bool btrfs_data_csum_ok(struct btrfs_bio *bbio, struct btrfs_device *dev,
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return true;
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}
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csum_expected = btrfs_csum_ptr(fs_info, bbio->csum, bio_offset);
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csum_expected = bbio->csum + (bio_offset >> fs_info->sectorsize_bits) *
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fs_info->csum_size;
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if (btrfs_check_sector_csum(fs_info, bv->bv_page, bv->bv_offset, csum,
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csum_expected))
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goto zeroit;
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