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| 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/disk-io.c | |
| 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/disk-io.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 21fab336f8ca..948ed5ac0794 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2219,13 +2219,13 @@ static int btrfs_init_workqueues(struct btrfs_fs_info *fs_info, static int btrfs_init_csum_hash(struct btrfs_fs_info *fs_info, u16 csum_type) { struct crypto_shash *csum_shash; - const char *csum_name = btrfs_super_csum_name(csum_type); + const char *csum_driver = btrfs_super_csum_driver(csum_type); - csum_shash = crypto_alloc_shash(csum_name, 0, 0); + csum_shash = crypto_alloc_shash(csum_driver, 0, 0); if (IS_ERR(csum_shash)) { btrfs_err(fs_info, "error allocating %s hash for checksum", - csum_name); + csum_driver); return PTR_ERR(csum_shash); } |