提交 fa13661c 编写于 作者: J Johannes Thumshirn 提交者: David Sterba

btrfs: open code btrfs_csum_ptr

Remove btrfs_csum_ptr() and fold it into it's only caller.
Reviewed-by: NAnand Jain <anand.jain@oracle.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJohannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: NDavid Sterba <dsterba@suse.com>
Signed-off-by: NDavid Sterba <dsterba@suse.com>
上级 74cc3600
......@@ -3367,13 +3367,6 @@ int btrfs_check_sector_csum(struct btrfs_fs_info *fs_info, struct page *page,
return 0;
}
static u8 *btrfs_csum_ptr(const struct btrfs_fs_info *fs_info, u8 *csums, u64 offset)
{
u64 offset_in_sectors = offset >> fs_info->sectorsize_bits;
return csums + offset_in_sectors * fs_info->csum_size;
}
/*
* Verify the checksum of a single data sector.
*
......@@ -3411,7 +3404,8 @@ bool btrfs_data_csum_ok(struct btrfs_bio *bbio, struct btrfs_device *dev,
return true;
}
csum_expected = btrfs_csum_ptr(fs_info, bbio->csum, bio_offset);
csum_expected = bbio->csum + (bio_offset >> fs_info->sectorsize_bits) *
fs_info->csum_size;
if (btrfs_check_sector_csum(fs_info, bv->bv_page, bv->bv_offset, csum,
csum_expected))
goto zeroit;
......
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