Re: RFC: Btrfs does not store checksum type? Only size? O_o

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 09/20/2017 10:31 PM, Timofey Titovets wrote:
> I was reading the kernel code and docs and didn't find anything about
> some info like "cheksum type" as btrfs have for compression code.
> (I only found some silent "hack" in btrfs-progs, that print "checksum
> type", but get "checksum size")
> 
> If i understood all correctly btrfs only store checksum size, i.e. 4
> for current CRC32C.

The checksum type is set in the superblock:

csum_type		0 (crc32c)
csum_size		4
[...]

So in the current design, you probably could have different checksum
types, but you will have to choose one of them when creating a filesystem.

-- 
Hans van Kranenburg
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Filesystem Development]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux