diff options
| author |  Ard Biesheuvel <ard.biesheuvel@linaro.org>
| 2019-09-03 09:43:24 -0700 |
|---|---|---|
| committer |  Herbert Xu <herbert@gondor.apana.org.au>
| 2019-09-09 17:35:28 +1000 |
| commit | 46a22776bc97aa5ab9d5f9dc4829859219b86365 (patch) | |
| tree | eceede28f542d7b6fbebda905f9218232c097cd6 /arch/arm/crypto/aes-ce-core.S | |
| parent | crypto: arm/aes - fix round key prototypes (diff) | |
| download | linux-46a22776bc97aa5ab9d5f9dc4829859219b86365.tar.gz linux-46a22776bc97aa5ab9d5f9dc4829859219b86365.tar.bz2 linux-46a22776bc97aa5ab9d5f9dc4829859219b86365.zip | |
crypto: arm/aes-ce - yield the SIMD unit between scatterwalk steps
Reduce the scope of the kernel_neon_begin/end regions so that the SIMD
unit is released (and thus preemption re-enabled) if the crypto operation
cannot be completed in a single scatterwalk step. This avoids scheduling
blackouts due to preemption being enabled for unbounded periods, resulting
in a more responsive system.
After this change, we can also permit the cipher_walk infrastructure to
sleep, so set the 'atomic' parameter to skcipher_walk_virt() to false as
well.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm/crypto/aes-ce-core.S')
0 files changed, 0 insertions, 0 deletions