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dm integrity: don't use drivers that have CRYPTO_ALG_ALLOCATES_MEMORY 

Don't use crypto drivers that have the flag CRYPTO_ALG_ALLOCATES_MEMORY
set. These drivers allocate memory and thus they are not suitable for
block I/O processing.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mikulas Patocka 2020-10-15 13:21:44 -04:00 committed by Mike Snitzer
parent 09162bc32c
commit a7a10bce8a
1 changed files with 2 additions and 2 deletions
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4
drivers/md/dm-integrity.c
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@ -3462,7 +3462,7 @@ static int get_mac(struct crypto_shash **hash, struct alg_spec *a, char **error,
int r;
if (a->alg_string) {
*hash = crypto_alloc_shash(a->alg_string, 0, 0);
*hash = crypto_alloc_shash(a->alg_string, 0, CRYPTO_ALG_ALLOCATES_MEMORY);
if (IS_ERR(*hash)) {
*error = error_alg;
r = PTR_ERR(*hash);
@ -3519,7 +3519,7 @@ static int create_journal(struct dm_integrity_c *ic, char **error)
struct journal_completion comp;
comp.ic = ic;
ic->journal_crypt = crypto_alloc_skcipher(ic->journal_crypt_alg.alg_string, 0, 0);
ic->journal_crypt = crypto_alloc_skcipher(ic->journal_crypt_alg.alg_string, 0, CRYPTO_ALG_ALLOCATES_MEMORY);
if (IS_ERR(ic->journal_crypt)) {
*error = "Invalid journal cipher";
r = PTR_ERR(ic->journal_crypt);