btrfs: don't assume compressed_bio sums to be 4 bytes
BTRFS has the implicit assumption that a checksum in compressed_bio is 4
bytes. While this is true for CRC32C, it is not for any other checksum.
Change the data type to be a byte array and adjust loop index calculation
accordingly.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h
index 9976fe0..191e5f4 100644
--- a/fs/btrfs/compression.h
+++ b/fs/btrfs/compression.h
@@ -61,7 +61,7 @@ struct compressed_bio {
* the start of a variable length array of checksums only
* used by reads
*/
- u32 sums;
+ u8 sums[];
};
static inline unsigned int btrfs_compress_type(unsigned int type_level)
