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| author | Eric Biggers <ebiggers@google.com> | 2017-03-31 07:18:48 +0200 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2017-04-25 22:12:03 +0200 |
| commit | 86f917adea2dc0ef440a248601e48154dc48e6d0 (patch) | |
| tree | d23ebff0683d9481af9fe692876bed88e81d8fd7 /drivers/md | |
| parent | dm verity: switch to using asynchronous hash crypto API (diff) | |
| download | linux-86f917adea2dc0ef440a248601e48154dc48e6d0.tar.xz linux-86f917adea2dc0ef440a248601e48154dc48e6d0.zip | |
dm crypt: remove obsolete references to per-CPU state
dm-crypt used to use separate crypto transforms for each CPU, but this
is no longer the case. To avoid confusion, fix up obsolete comments and
rename setup_essiv_cpu().
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-crypt.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 64c5022449ee..e2de5715d528 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -225,7 +225,7 @@ static struct scatterlist *crypt_get_sg_data(struct crypt_config *cc, struct scatterlist *sg); /* - * Use this to access cipher attributes that are the same for each CPU. + * Use this to access cipher attributes that are independent of the key. */ static struct crypto_skcipher *any_tfm(struct crypt_config *cc) { @@ -349,10 +349,11 @@ static int crypt_iv_essiv_wipe(struct crypt_config *cc) return err; } -/* Set up per cpu cipher state */ -static struct crypto_cipher *setup_essiv_cpu(struct crypt_config *cc, - struct dm_target *ti, - u8 *salt, unsigned saltsize) +/* Allocate the cipher for ESSIV */ +static struct crypto_cipher *alloc_essiv_cipher(struct crypt_config *cc, + struct dm_target *ti, + const u8 *salt, + unsigned int saltsize) { struct crypto_cipher *essiv_tfm; int err; @@ -431,9 +432,8 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti, cc->iv_gen_private.essiv.salt = salt; cc->iv_gen_private.essiv.hash_tfm = hash_tfm; - essiv_tfm = setup_essiv_cpu(cc, ti, salt, - crypto_ahash_digestsize(hash_tfm)); - + essiv_tfm = alloc_essiv_cipher(cc, ti, salt, + crypto_ahash_digestsize(hash_tfm)); if (IS_ERR(essiv_tfm)) { crypt_iv_essiv_dtr(cc); return PTR_ERR(essiv_tfm); |