Re: [PATCH v3 3/6] s390/crypto: Fix use of mutex in atomic context in PAES
Holger Dengler <[email protected]>
| Newsgroups | org.kernel.vger.linux-crypto,org.kernel.vger.linux-s390 |
|---|---|
| Message-ID | <[email protected]> |
On 8/17/26 16:16, Harald Freudenberger wrote:
> The PAES CTR implementation used a mutex to lock one page of exclusive
> memory for fast CTR processing. Unfortunately a mutex is not save to
> use in atomic or interrupt context. So use a binary semaphore instead
> which is save to use in such environments.
>
> Fixes: 6cd87cb5ef6c ("s390/crypto: Rework protected key AES for true asynch support")
> Signed-off-by: Harald Freudenberger <[email protected]>
> Cc: [email protected] # 6.16+
Reviewed-by: Holger Dengler <[email protected]>
--
Mit freundlichen Grüßen / Kind regards
Holger Dengler