diff options
| author |   David Sterba <dsterba@suse.com> | 2019-10-08 18:41:33 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-11-18 17:51:44 +0100 |
| commit | b4e967be431cf37f56cd1993592943007d7ab03b (patch) | |
| tree | d4b88246e91eac13a954d860800e0cfca3226b27 /fs/btrfs/ctree.h | |
| parent | btrfs: sysfs: show used checksum driver per filesystem (diff) | |
| download | linux-dev-b4e967be431cf37f56cd1993592943007d7ab03b.tar.xz linux-dev-b4e967be431cf37f56cd1993592943007d7ab03b.zip | |
btrfs: add member for a specific checksum driver
Currently all the checksum algorithms generate a fixed size digest size
and we use it. The on-disk format can hold up to BTRFS_CSUM_SIZE bytes
and BLAKE2b produces digest of 512 bits by default. We can't do that and
will use the blake2b-256, this needs to be passed to the crypto API.
Separate that from the base algorithm name and add a member to request
specific driver, in this case with the digest size.
The only place that uses the driver name is the crypto API setup.
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/btrfs/ctree.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index b17944995e09..4a842c0fa062 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2163,6 +2163,7 @@ BTRFS_SETGET_STACK_FUNCS(super_uuid_tree_generation, struct btrfs_super_block, int btrfs_super_csum_size(const struct btrfs_super_block *s); const char *btrfs_super_csum_name(u16 csum_type); +const char *btrfs_super_csum_driver(u16 csum_type); size_t __const btrfs_get_num_csums(void); |