In many places we need the checksum size and it is inefficient to read
it from the raw superblock. Store the value into fs_info, actual use
will be in followup patches. The size is u32 as it allows to generate
better assembly than with u16.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
u32 sectorsize;
/* ilog2 of sectorsize, use to avoid 64bit division */
u32 sectorsize_bits;
+ u32 csum_size;
u32 stripesize;
/* Block groups and devices containing active swapfiles. */
fs_info->nodesize = nodesize;
fs_info->sectorsize = sectorsize;
fs_info->sectorsize_bits = ilog2(sectorsize);
+ fs_info->csum_size = btrfs_super_csum_size(disk_super);
fs_info->stripesize = stripesize;
/*